Isle of Man TT

"Isle of Man Tourist Trophy" redirects here. For a series of car races held on the Isle of Man between 1905 and 1922, see RAC Tourist Trophy.

Isle of Man Tourist Trophy
Region	Isle of Man
Course	Isle of Man TT Mountain Circuit
Type	Public road course
Clerk of the course	Gary Thompson MBE BEM
Event organiser	ACU Events Ltd
Principal sponsor	Isle of Man Department for Enterprise
History
First race	1907
Number of race meetings	103 (up to 2024)
First winner	Rem Fowler (1907)
Most wins	Michael Dunlop 29 (2007–present) Joey Dunlop 26 (1977–2000)
Lap record	Peter Hickman 16m 36.114s – 136.358 mph (219.447 km/h) (2023)

The Isle of Man TT or Tourist Trophy races are an annual motorcycle racing event run on the Isle of Man in May and June of most years since its inaugural race in 1907. The event begins on the UK Spring Bank Holiday at the end of May and runs for thirteen days. It is often called one of the most dangerous racing events in the world as many competitors have died. ^[1]

Overview

The Isle of Man TT is run in a time-trial format on public roads closed to the public by an Act of Tynwald. The event consists of one week of practice and qualifying sessions followed by one week of racing. It was a tradition, perhaps started by racing competitors in the early 1920s, for spectators to tour the Snaefell Mountain Course on motorcycles during the Isle of Man TT on 'Mad Sunday', ^[2] an informal and unofficial event held on the Sunday between Practice Week and Race Week. ^[3] In 2022, race organizers announced that beginning in 2023, racing would take place on Sunday after practices to allow visitors to see more events, marking the end of Mad Sunday. ^{[4] [5]}

Michael Dunlop in front of Bruce Anstey during the 2013 Supersport TT

The first Isle of Man TT race was held on Tuesday 28 May 1907 and was named the International Auto-Cycle Tourist Trophy. ^[6] The event was organised by the Auto-Cycle Club over 10 laps of the Isle of Man St John's Short Course of 15 miles 1,470 yards for road-legal 'touring' motorcycles with exhaust silencers, saddles, pedals and mudguards.

From 1911, the Isle of Man TT transferred to the much longer Snaefell Mountain Course of 37.40 miles (60.19 km) (current length 37.73 miles (60.72 km)). Its elevation goes from near sea-level to 1,300 feet (400 m). ^[7] The race programme developed from a single race with two classes for the 1907 Isle of Man TT, expanding in 1911 to two individual races for the 350cc Junior TT motor-cycles and the Blue Riband event the 500cc Senior TT race. The race did not take place from 1915 to 1919 due to the First World War. It resumed in 1920. A 250cc Lightweight TT race was added to the Isle of Man TT programme in 1922, followed by a Sidecar TT race in 1923.

There was no racing on the Isle of Man between 1940 and 1945 due to the Second World War. It recommenced with the Manx Grand Prix in 1946 and the Isle of Man TT in 1947, with a greatly expanded format that included the new Clubman's TT races. The Isle of Man TT became part of the FIM Motor-cycle Grand Prix World Championship (now MotoGP) as the British round of the World Motor-Cycling Championship during the period 1949–1976. Following safety concerns with the Snaefell Mountain Course and problems over inadequate "start-money" for competitors, there was a boycott of the Isle of Man TT races from the early 1970s by many of the leading competitors, motorcycle manufacturers and national motorcycle sporting federations. ^[8]

Beryl Swain became the first woman to compete in a TT race for solo motorcycles when she competed in the Isle of Man TT in 1962. ^[9] There was subsequently a ban on women in the race from 1962 until Hilary Musson competed in 1978. ^{[10] [11] [12] [13]}

The race is regarded as the most dangerous motorsport event in the world; The New York Times said in 2017 that the number of deaths had risen "to 146 since it was first run in 1907; if one includes fatal accidents occurring during the Manx Grand Prix ... the figure rises above 250". ^{[14] [15]} An account of the 2003 race by Sports Illustrated writer Franz Lidz called the TT "a test of nerves and speed that may be sports' most dangerous event." ^[16]

In 1976, the Isle of Man TT lost its world championship status; this was transferred to the United Kingdom by the FIM and run as the British Grand Prix for the 1977 season. The Isle of Man TT Races then became an integral part of the new style TT Formula 1, Formula 2 and Formula 3 World Championships between 1977 and 1990 to develop and maintain the international racing status of the Isle of Man TT races. ^[17]

The event was redeveloped by the Isle of Man Department of Tourism as the Isle of Man TT Festival from 1989 onwards. This included new racing events for the new Isle of Man TT Festival programme, including the Pre-TT Classic Races in 1989 followed by the Post-TT Races from 1991, both held on the Billown Circuit. In 2013, the Isle of Man Classic TT was developed by the Isle of Man Department of Economic Development and the Auto-Cycle Union for historic racing motorcycles, and along with the Manx Grand Prix, it formed part of the 'Isle of Man Festival of Motorcycling' held in late August of each year. The Classic TT brand ceased operation prior to the 2022 event, with classes for historic racing motorcycles integrated into the Manx Grand Prix. The TT is now promoted by the Isle of Man Government Department for Enterprise.

There has been criticism of the event. In 2007, an incident during the Senior Race resulted in the deaths of a rider and two spectators. ^[18] The resultant inquest made several recommendations and included several comments, such as: 'Senior Marshals may well have been elevated beyond the sphere of their competence'. ^[19] The coroner also noted that "I am more than aware of the fact that the witnesses from the Manx Motor Cycle Club and the marshals are all volunteers. They give their time freely and without paid reward. Having said that however, if it were suggested because they were volunteers there should be some allowance in the standards expected of them, then I regret I cannot agree." ^[20]

The 2020 and 2021 TT races were cancelled because of the COVID-19 pandemic. ^{[21] [22]}

Early Isle of Man TT race history (1904–1910)

Gordon Bennett and Tourist Trophy car races

Motor racing began on the Isle of Man in 1904 with the Gordon Bennett Eliminating Trial, restricted to touring automobiles. As the Motor Car Act 1903 placed a speed restriction of 20 mph (32 km/h) on automobiles in the UK, Julian Orde, Secretary of the Automobile Car Club of Britain and Ireland approached the authorities in the Isle of Man for the permission to race automobiles on the island's public roads. ^[23] The Highways (Light Locomotive) Act 1904 gave permission in the Isle of Man for the 52.15-mile (83.93 km) Highroads Course for the 1904 Gordon Bennett Eliminating Trial which was won by Clifford Earl (Napier) in 7 hours 26.5 minutes for five laps (255.5 mi or 411.2 km) of the Highroads Course. The 1905 Gordon Bennett Trial was held on 30 May 1905 and was again won by Clifford Earl driving a Napier automobile in 6 hours and 6 minutes for six laps of the Highroads Course. This was followed in September 1905 with the first Isle of Man Tourist Trophy Race for racing automobiles, now known as the RAC Tourist Trophy and was won by John Napier (Arrol-Johnston) in 6 hours and 9 minutes at an average speed of 33.90 mph (54.56 km/h). ^[24]

International Motor-Cycle Cup Race (1905)

For the 1905 Gordon Bennett Eliminating Trial it was decided to run an eliminating trial for motorcycles the day afterwards for a team to represent Great Britain in the International Motor-Cycle Cup Races. An accident at Ramsey Hairpin forced out one of the pre-race favourites, and the inability of the competitors to climb the steep Mountain Section of the course forced the organisers to use a 25-mile (40 km) section of the Gordon Bennett Trial course. This ran from Douglas south to Castletown and then north to Ballacraine along the primary A3 road and returning to the start at the Quarterbridge in Douglas via Crosby and Glen Vine along the current Snaefell Mountain Course in the reverse direction. The 1905 International Motor-Cycle Cup Race for five laps (125 mi or 201 km) was won by J.S. Campbell (Ariel) despite a fire during a pit stop ^[25] in 4 hours, 9 minutes and 36 seconds at an average race speed of 30.04 mph (48.34 km/h). ^[26]

Format of the races

Competitors line up at the start of the 2010 Senior TT race

The TT Races since the first race in 1907 have been in the format of time-trial. The races held on the Clypse Course during the period 1954–1959 were the more traditional full grid starts along with the 1924 Lightweight TT Race and Clubmen TT Races from 1948, which were also "mass-start" races. The current format is a "clutch start" and race competitors will be "started singly at 10-second intervals". ^[27]

Race procedure

• Start Preliminaries
  • First Signal – 45 minutes before the start with a warm-up of engines in the Race Paddock and assembly area.
  • Second Signal – 30 minutes before start.
  • Third Signal – 15 minutes before start, race competitors move to the start-line and form-up in qualification order.
  • Fourth Signal – 5 minutes before start, signal to clear the grid and race competitors move towards the exit-gate.

Eligibility

Entrants must be in possession of a valid National Entrants or FIM Sponsors Licence for Road Racing.

Entrants must also cite pre-filled documentation of completion of a UK driving licence or motorcycle certification, or a driver's licence from a comparable country that is recognised by UK comparable department of transportation standards and may withhold due to any pre race or post race suspensions.

Race classes

Current

• Senior TT (1909–present)
• Supersport TT (2005–present)
• Superbike TT (2005–present)
• Superstock TT (2005–present)
• Supertwin TT (2022–present)
• Sidecar TT (1923–1925, 1951–1967, 1977–present)

Former

• Singles TT (1907–1908, 1994–2000)
• Twin TT (1907–1908)
• Sidecar 1000 TT (1975–1976)
• Sidecar 750 TT (1968–1974)
• Sidecar 500 TT (1968–1976)
• Ultra-Lightweight TT (1924–1925, 1951–1974, 1989–2004, 2008)
• Clubman Senior TT (1947–1956)
• Clubman Junior TT (1947–1956)
• Clubman Lightweight TT (1947–1950)
• Clubman 1000 TT (1949–1950, 1953)
• 50 TT (1962–1968)
• Classic TT (1975–1984)
• Formula 1 TT (1977–2004)
• Formula 2 TT (1977–1987)
• Formula 3 TT (1977–1982)
• Production 1500 TT (1985–1985)
• Production 1000 TT (1974, 2002–2004)
• Production 750 TT (1967–1973, 1984–1985)
• Production 500 / 600 TT (1967–1974, 2002–2004)
• Production 250 TT (1967–1974, 1984–1985)
• Production TT (1975–1976, 1996–2000)
• Production A TT (1986–1988)
• Production B TT (1986–1988)
• Production C TT (1986–1988)
• Production D TT (1986–1988)
• Supersport 600 TT (1989–1994)
• Supersport 400 TT (1989–1994)
• Lightweight 400 TT (1999–2004)
• TTXGP (2009)
• TT Zero (2010–2019)
• Lightweight TT (1922–1976, 1995–2004, 2012–2019)

Superbike TT

The 2015 specification for entries into the Superbike TT race are defined as:

• Any machine complying with the following specifications:
  • TT Superbike: (Machines complying with the 2015 FIM Superbike Championship specifications)
    • Over 750 cc up to 1000 cc 4 cylinders 4-stroke
    • Over 750 cc up to 1000 cc 3 cylinders 4-stroke
    • Over 850 cc up to 1200 cc 2 cylinders 4-stroke

Minimum Weight 165 kg (364 lb). Other machines admitted at the discretion of the Organisers ^[28]

Supersport TT

The 1911 Isle of Man TT was the first time the Junior TT race took place, open to 300 cc single-cylinder and 340 cc twin cylinder motorcycles, contested over five laps of the new 37.5-mile (60.4 km) Snaefell Mountain Course. The first event on the new course was the Junior TT Race contested by 35 entrants, won by Percy J. Evans riding a Humber motor-cycle at an average race speed of 41.45 mph (66.71 km/h). The 1912 event was the first to limit the Junior TT to only 350 cc machines and this engine capacity prevailed until 1976, after which the category was dropped. The event was instead run for 250 cc machines until 1994 when replaced by the 600 cc Supersport class.

• 1911 For single cylinder motorcycles not exceeding 300 cc engine capacity and 340 cc twin cylinder motorcycles.
• 1912–1948 For motorcycles not exceeding 350 cc engine capacity.
• 1949–1953 FIM World Championship event for motorcycles not exceeding 350 cc engine capacity and held on the Snaefell mountain course.
• 1954–1959 FIM World Championship event for motorcycles not exceeding 350 cc engine capacity and held on the Clypse Course.
• 1960–1976 FIM World Championship event for motorcycles not exceeding 350 cc engine capacity and held on the Mountain Course.
• 1977–1994 for motorcycles not exceeding 250 cc engine capacity and held on the Mountain Course.
• 1995 onwards for motorcycles not exceeding 600 cc engine capacity and held on the Mountain Course.

The 2015 specifications for entries into the Supersport TT race are:

• TT Supersport: (Machines complying with the 2015 FIM Supersport Championship specifications)

• Over 400 cc up to 600 cc 4 cylinders 4-stroke
• Over 600 cc up to 675 cc 3 cylinders 4-stroke
• Over 600 cc up to 750 cc 2 cylinders 4-stroke

Minimum Weight 161 kg ^[29]

Superstock TT

Main article: Superstock TT

The 2015 specifications for entries for the Superstock TT, an event for production based motorcycles racing with treaded road tyres, are based on the FIM Superstock Championship specifications, as follows:

• Superstock TT: (Machines complying with the 2012 FIM Superstock Championship specifications)
  • Over 750 cc up to 1000 cc 4 cylinders 4-stroke
  • Over 750 cc up to 1000 cc 3 cylinders 4-stroke
  • Over 850 cc up to 1200 cc 2 cylinders 4-stroke

Minimum (Dry) Weight 170 kg ^[30]

Supertwin TT

2022 saw the introduction of the supertwin race run over 3 laps on Wednesday the 8th of June, increased to 4 laps the following year. The class is very similar to the lightweight class which last ran in 2019, although with some differences. The maximum capacity has been increased to 700cc allowing the Yamaha YZF-R7 and Aprilia RS660 to compete. In 2022 bikes with capacities of 651cc+ were required to run 10 kg heavier than the 150 kg limit for the 650cc machines, but 2023 saw this changed and all bikes in the class now have a minimum weight of 150 kg. ^[31]

Sidecar TT

Main article: Sidecar TT

Sidecar TT race competitors line up to start the race

The 1923 TT was the first time the Sidecar TT race was run, over three laps (113 mi or 182 km) of the Mountain Course and was won by Freddie Dixon and passenger Walter Denny with a Douglas and special banking-sidecar at an average race speed of 53.15 mph (85.54 km/h). For the 1926 event the Sidecar and Ultra-Lightweight TT classes were dropped due to lack of entries.

The Sidecar race was re-introduced from the 1954 event for Sidecars not exceeding 500 cc engine capacity, run on the Clypse Course. A non-championship 750 cc class for sidecars was introduced at the 1968 event. For the 1976 event the race was held over two-legs. From 1975, the previous 500 cc and 750 cc classes for Sidecars were replaced by a 1000 cc engine capacity class.

The new FIM Formula 2 class for Sidecars was introduced for the 1990 Isle of Man TT.

• 1954–1959 FIM World Championship Event for Side-Cars not exceeding 500 cc engine capacity. Race held on the Clypse Course.
• 1960–1976 FIM World Championship Event held on Mountain Course.
• 1968–1974 Non-Championship event for Sidecars not exceeding 750 cc.
• 1975–1989 Sidecars not exceeding 1000 cc engine capacity.
• 1990– FIM Formula 2 Sidecar race for two-stroke engines not exceeding 350 cc or four-stroke engines not exceeding 600 cc.

The 2015 specifications for entries into the Sidecar TT race are:

• Machines must comply with general technical rules as per ACU Standing Regulations and 2015 Isle of Man TT regulations.
  • Engine Types
    • 501 – 600 cc, 4 stroke, 4 cylinder, Production based motorcycle engines.

Senior TT

Main article: Senior TT

Ian Hutchinson on the start-line of the Senior TT Race on 11 June 2010

For the 1911 Isle of Man TT, the first TT event using the Snaefell Mountain Course or Mountain Course, two separate races were introduced. The first event was a four lap Junior TT race and a separate Senior TT race for 500 cc single-cylinder and 585 cc twin-cylinder motorcycles, over five laps of the new 37.5-mile (60.4 km) Snaefell Mountain Course. The new technical challenges of the Mountain Course forced changes on entrants and motorcycle manufacturers alike. The American Indian motorcycle factory fitted a two-speed gearbox and chain-drive. ^[32] This proved to be the winning combination when Oliver Godfrey won the 1911 Senior TT race riding an Indian at an average speed of 47.63 mph (76.65 km/h). Fitted with a six-speed belt drive ^[33] Charlie Collier riding a Matchless motorcycle finished second in the 1911 Senior TT race and was later disqualified for illegal refuelling. During an early morning practice session for the 1911 Isle of Man TT races, Victor Surridge died after crashing his Rudge motorcycle at Glen Helen, the first death of a competitor on the Snaefell Mountain Course and the first death in the Isle of Man of a person in an automotive accident. ^[34]

• 1911 For single cylinder motorcycles not exceeding 500 cc engine capacity and 585 cc twin cylinder motorcycles.
• 1912–1939 For motorcycles not exceeding 500 cc engine capacity.
• 1947–1948 For motorcycles not exceeding 500 cc engine capacity and a ban on engine supercharging.
• 1949–1976 FIM World Championship event for motorcycles not exceeding 500 cc engine capacity.
• 1977–1984 for motorcycles not exceeding 500 cc engine capacity.
• 1985–2004 for motorcycles complying with ACU TT Formula 1 rules not exceeding 1,010 cc engine capacity.
• 2004 onwards for motorcycles complying with ACU/FIM Superbike rules not exceeding 1,000 cc engine capacity.

The 2015 specifications for entries into the Senior TT race are:

• TT Superbike: (Machines complying with the 2015 FIM Superbike Championship specifications) ^[35]
  • Over 750 cc up to 1000 cc 4 cylinders 4-stroke
  • Over 750 cc up to 1000 cc 3 cylinders 4-stroke
  • Over 850 cc up to 1200 cc 2 cylinders 4-stroke

• Supersport Junior TT (without limitation of tyre choice)
  • TT Superstock (without limitation of tyre choice)
  • Other machines admitted at the discretion of the Organisers.

Discontinued race classes

Clubman TT and Production TT

The Clubman races with Lightweight, Junior and Senior classes were held for production motorcycles from 1947 until 1956. ^[36] A Senior 1000 cc class provided an opportunity for Vincent motorcycles. ^[37] The riders were little-known, but as the stars were barred from entering the class, it provided a stepping-stone for future-stars but resulted in less spectator-interest. The series became dominated by one model – the BSA Gold Star, ^{[38] [39] [40]} and with little competition from other manufacturers, was discontinued. When previewing the impending re-introduction of a specification-controlled, roadster-based class in March 1967, David Dixon wrote: "lack of inter-make rivalry probably put the final nail in the coffin". ^[38]

Writing in UK monthly magazine Motor Cyclist Illustrated, racing journalist Ray Knight, who had achieved a lap speed of nearly 88 mph on a Triumph Tiger 100 roadster-based racing motorcycle in the Manx Grand Prix, ^{[41] [42] [43]} commented in early 1965 that the ACU had refused a request from manufacturers to run a production TT race, which he thought was a missed opportunity, particularly considering the dwindling support for the 500 cc race. ^[44]

Ryan Farquhar's 650 cc Kawasaki at the start line of the 2012 Lightweight TT. He went on to win that year's race.

A Production TT for roadster-based motorcycles having classes for maximum engine capacities of 250 cc, 500 cc and 750 cc was introduced from 1967 until 1976 when the class was discontinued.

The Production TT was reintroduced for the 1984 races in three classes, reduced to two classes on safety grounds for the 1990 races. For the 2005 races the Superstock class replaced the previous 1000 cc and 600 cc Production TT classes that had been part of the race schedule since 1989.

Ultra-Lightweight TT

Main article: Ultra-Lightweight TT

Lightweight TT

Main article: Lightweight TT

TT Zero

Main article: TT Zero

The TT Zero was a one lap race for electric bikes running from 2010 to 2019. It was announced that the race would take a two-year break after 2019, but it never came back on the schedule since. ^[45]

TT course official vehicles

After the completion of a practice or race period, an official course vehicle displaying the notice Roads Open proceeds around the Mountain Course, passing each point opening the roads including side-access junctions to public use. On the Snaefell mountain road section from Ramsey to Douglas, the official vehicle displays the notice Roads Open One Way.

Travelling marshals

Two motorcycles with 'M' plates used by travelling marshals during race and practice sessions, positioned ready for course-deployment at Parliament Square, Ramsey on a race day in 2008

Originally introduced in 1935, there are eight machines positioned around the course to provide a rapid response to any incidents. Selected riders have previous race experience and are first-aid trained, with machines carrying medical equipment that can assist in managing a casualty. They also have other duties such as course inspection, observation of machines on the course for visible faults, and review and report any course incidents. ^[47] As of 2023, all travelling marshals rode Honda CBR1000RR Fireblades. ^[48]

Crossing places during practice and races

The 1982 Road Racing Act (Isle of Man) and the supplementary TT Road Races Orders allow vehicles and pedestrians to cross the Snaefell Mountain Course at certain points between scheduled race periods under the supervision of a police officer. Several permanent pedestrian overbridges have been erected. These points include:

In Douglas

• A2 St Ninian's Crossroads with the A22 Ballaquayle Road and the A22 Ballanard Road
• A2 junction at Bray Hill with the Tromode Road and Stoney Road
• A1 Peel Road between Braddan Bridge (Jubilee Oak) and the Quarterbridge
• A2 Governor's Road, Onchan, the A2 Glencrutchery Road and Victoria Road at Governor's Bridge
• A2 Glencrutchery Road between Second & Third Avenues and Victoria Road
• A18 Bemahague Road at Bedstead Corner, Onchan

• 
  Pedestrian overbridge at Glencrutchery Road, Douglas, close to start/finish and TT Grandstand
• 
  Pedestrian overbridge at Bedstead Corner, Douglas, with Hailwood Avenue junction to right

Elsewhere

• A1 Douglas to Peel road with the A23 Eyreton Road and the B36 Old Church Road, Crosby
• A3 Castletown to Ramsey road junction with B10 Sartfield Road and the Ballaleigh Road at Barregarrow Crossroads, Michael
• A3 junction with A10 Station Road and C37 Ballaugh Glen Road at Ballaugh Bridge
• A3 junction with A14 Sandygate Road and A14 Tholt-y-Will Glen Road at Sulby Crossroads
• A2 Albert Square and Princes Road, Ramsey at the junction with A18 Snaefell Mountain Road, close to May Hill

• 
  Pedestrian overbridge before School House Corner, western approach to Ramsey town
• 
  Pedestrian overbridge exiting Ramsey town centre, looking south-east towards May Hill
• 
  Pedestrian overbridge at The Bungalow, on Snaefell mountain

TT Course access road

Part of the access road passing under the A1 Peel Road

The TT Access Road runs parallel to a section of the A1 Peel Road, which is part of the Snaefell Mountain Course, and operates during practice and race periods to enable vehicles to pass from inside of the race course to the outside. It runs along a section of former railway line on the historic Douglas to Peel route, from the junction of the A5 New Castletown Road at the Quarter Bridge, passing under the course at Braddan Bridge, to an exit at Braddan School Road in Douglas outskirts, near the former Braddan Railway Halt and the A23/Ballafletcher Road junction. The access road is a narrow, single-track width with passing places and is restricted to cars and light vans below a weight limit of 3,500 kilograms (3.4 long tons; 3.9 short tons). When used for vehicular traffic, pedestrian access is prohibited, but at other times it is part of a system of nature trails. ^{[49] [50]}

Incidents

Main article: Isle of Man TT Mountain Course § Safety

See also: List of Isle of Man TT Mountain Course fatalities

Between 1907 and 2023, there have been 156 fatalities during official practices or races on the Snaefell Mountain Course, and 269 total fatalities (this number includes the riders killed during the Manx Grand Prix, and Clubman TT race series of the late 1940s/1950s). ^{[14] [51] [52]} In 2016, 5 riders died on the course during official practices or races. ^{[53] [54] [15] [55]} There were six fatalities among competitors in the 1970 and 2022 Isle of Man TTs, making them the two deadliest years in the history of the event. ^{[56] [57] [58]}

2018 Course Car incident

Sidecars returning to Paddock past Sarah's Cottage in reverse direction to a normal race after a red flag caused by a competitor's crash in 2009

On 30 May 2018, an experienced TT rider, Steve Mercer, ^{[59] [60]} was seriously injured during a head-on collision with an official Course Car at Ballacrye. The car, being driven at high speed, ^{[61] [62]} was conveying police officers to officiate at the scene of a fatality involving Dan Kneen. Mercer was unconscious for five days and hospitalised for five months due to multiple injuries. He was one of seven riders who had been halted on the course and turned back by marshals, being instructed to proceed back to the TT Grandstand area in the reverse direction after the red flag stoppage. ^{[63] [64]} Immediately after the accident the organisers changed their protocols, requiring that returning riders must be controlled by motorcycle-mounted travelling marshals to the front and rear. ^{[65] [66]} An independent inquiry into the circumstances was arranged by ACU Events, the event organisers. ^[67]

The Auto-Cycle Union, the Isle of Man Department for Enterprise, and the inquiry report author, lawyer Rob Jones, a former chief executive of the Motor Sports Association, all refused to release the report as it was confidential and privately owned by the ACU. ^{[62] [64] [68] [69]}

The ACU admitted liability for the accident, but instructed that any legal claim for compensation by Mercer must be filed in the Isle of Man. The ACU stated that Mercer was receiving financial assistance through its "extensive insurance arrangements". ^{[60] [70] [71]}

In 2019, it was reported that the driver of the car in the collision had quit after criticism that he exceeded a newly introduced speed limit recorded by a GPS tracking device when he drove to attend a fatality involving Chris Swallow at Ballaugh in August's Senior Classic TT. Gary Thompson, Clerk of the Course and an ACU employee, had been criticised in 2018 for also fulfilling the role of Safety Officer; consequently a new incumbent was in place for 2019. ^{[62] [72] [73]}

Cancellations

World Wars I and II

From 1915 to 1919, and 1940 to 1946, no TT events took place, due to the outbreak of World Wars I and II. ^[74] Events continued from 1920 to 1939 and 1947 to 2000.

Since TT 1947, the Isle of Man TT has only been cancelled three times: 2001, 2020 and 2021, all of which were due to viral outbreaks.

2001 cancellation

The 2001 Isle of Man TT races were cancelled because of the outbreak of foot-and-mouth disease in the UK in the spring and summer of 2001. Disinfecting 40,000 spectators and competitors (and their motorcycles) to ensure the disease was kept off the island proved difficult.

2020 and 2021 cancellations

In March 2020, the Isle of Man Government announced the cancellation of the 2020 TT due to the ongoing COVID-19 pandemic. ^[75] The Classic TT was subsequently cancelled in May, ^[76] and in December 2020, it was announced that 2021's TT races would also not go ahead, due to the continued worldwide spread of the virus. ^[77] In 2020, the Isle of Man Government lost an estimated £4.8 million of its annual projected revenue due to the cancellation of the TT races. ^[78]

The event returned in 2022 after a two-year absence. ^[79]

Total overall race winners

Updated in June 2024 ^[80]

Po.	Rider	Wins
1	Michael Dunlop	29
2	Joey Dunlop	26
3	John McGuinness	23
4	Dave Molyneux	17
5	Ian Hutchinson	16
6	Mike Hailwood, Ben Birchall, Tom Birchall, Peter Hickman	14
10	Bruce Anstey	12
11	Steve Hislop, Phillip McCallen	11
13	Giacomo Agostini, Robert Fisher, Stanley Woods	10
16	Mick Boddice, David Jefferies, Ian Lougher, [Note 1] Siegfried Schauzu	9
20	Rick Long, Jim Moodie, Chas Mortimer, Phil Read, Dan Sayle, Charlie Williams	8
26	Mick Grant, Wolfgang Kalauch, Michael Rutter, Tony Rutter	7
30	Chas Birks, Geoff Duke, Jimmie Guthrie, Jim Redman, John Surtees	6
35	Alec Bennett, Nick Crowe, Robert Dunlop, Brian Reid, Carlo Ubbiali	5
40	Klaus Enders, Freddie Frith, Wal Handley, Trevor Ireson, Benga Johansson, Dave Leach, Ray Pickrell, Tarquinio Provini, Horst Schneider, Barry Smith, Bill Smith, Jock Taylor, John Williams,	4
53	Ray Amm, Adrian Archibald, Graeme Crosby, Harold Daniell, Max Deubel, Ralf Engelhardt, Ryan Farquhar, Patrick Farrance, Carl Fogarty, Alex George, Dean Harrison, Tom Herron, Darren Hope, Emil Hörner, Alan Jackson, Tony Jefferies, Geoff Johnson, Klaus Klaffenböck, Rob McElnea, Bob McIntyre, Phil Mellor, Dave Morris, Chris Palmer, [Note 2] Clive Pollington, Walter Schneider, Ian Simpson, Rolf Steinhausen, Hans Strauss, Luigi Taveri, Barry Woodland	3
83	Fergus Anderson, Hugh Anderson, Manliff Barrington, Artie Bell, Geoff Bell, Lowry Burton, Kel Carruthers, Bernard Codd, Charlie Collier, Keith Cornbill, Mark Cox, Callum Crowe, Ryan Crowe, Steve Cull, Pat Cushnahan, Howard R Davies, Freddie Dixon, Charlie Dodson, Cameron Donald, Iain Duffus, Karl Ellison, Bob Foster, Dick Greasley, Manfred Grunwald, Hermann Hahn, Craig Hallam, Shaun Harris, John Hartle, Pete Hill, Fritz Hillebrand, Mac Hobson, Gary Hocking, John Holden, Josef Huber, Tim Hunt, Boyd Hutchinson, Bill Ivy, Gary Johnson, Alistair King, Con Law, Eddie Laycock, Ivan Lintin, Bill Lomas, Graeme McGregor, Trevor Nation, Gary Padgett, Steve Plater, Jock Porter, Nick Roche, Cecil Sandford, Dave Saville, Tom Sheard, Davey Todd, Edwin Twemlow, Malcolm Uphill, Dave Wells, Don Williams, Eric Williams, Paul Williams, Andrew Winkle, Michael Wynn	2
141	Steve Abbott, Dario Ambrosini, Frank A Applebee, Ivor Arber, Reg Armstrong, Kenny Arthur, Stewart Atkinson, Georg Auerbacher, Mike Aylott, Mark Baldwin, Rob Barber, W. Harry Bashall, Ian Bell, Phillip Biggs, Eric Bliss, Dieter Braun, Eric Briggs, Norman Brown, Ralph Bryans, Jimmy Buchan, Trevor Burgess, Roger Burnett, Mick Burns, Florian Camathias, Maurice Cann, Neil Carpenter, Phil Carpenter, Phil Carter, Harold Clark, Rod Coleman, Harry A Collier, Stuart Collins, Syd Crabtree, Dave Croxford, Jack Daniels, Leo Davenport, Geoff Davison, Tommy de la Hay, Ernst Degner, Walter Denny, George Douglass, Eddie Dow, Percy Evans, Helmut Fath, Jack Findlay, John Flaxman, Frank Fletcher, Rem Fowler, John Giabbard, Sid Gleave, Oliver Godfrey, Les Graham, Stuart Graham, Werner Haas, Dave Hallam, Roy Hanks, Colin Hardman, Bernard Hargreaves, Conrad Harrison, Ron Haslam, Ronnie Hazlehurst, Chris Heath, Alfred Herzig, Freddie Hicks, James Hillier, Robert Holden, Rupert Hollaus, K.J. Horstman, Clive Horton, Eric Houseley, Dennis Ireland, Mitsuo Itoh, Brian Jackson, Nick Jefferies, Doug Jewell, Lee Johnston, Paddy Johnston, Ken Kavanagh, Bob Keeler, Neil Kelly, John Kidson, Ewald Kluge, Ray Knight, David Lashmar, Monty V. Lockwood, Frank Longman, Heinz Luthringshauser, Jack Marshall, Tom Kearey, Keith Martin, Hugh Mason, Cromie McCandless, Georg Meier, Ted Mellors, Mark Miller, Derek Minter, Brian Morrison, Les Nutt, George O'Dell, Eric Oliver, Mat Oxley, Phil Palmer, Len Parker, Denis Parkinson, Graham Penny, Alex Phillip, Derek Powell, Cyril Pullin, Brian Purslow, Richard Quayle, Johnny Rea, Harry Reed, Tim Reeves, Brett Richmond, Tommy Robb, John Robinson, Mike Rogers, Nigel Rollason, Dave Roper, Gordon Russell, Fritz Scheidegger, Martyn Sharpe, Dave Simmonds, Bill Simpson, Jimmie Simpson, Shaun Smith, Cyril Taft, Omobono Tenni, Steve Tonkin, George Tucker, Kenneth Twemlow, Henry Tyrell-Smith, Chris Vincent, Terry Vinicombe, Graham Walker, Frank Whiteway, Cyril Williams, Donny Williams, Paul J. Williams, Peter Williams, Alfred Wohlgemuth, Tim Wood, Tommy Wood, Stan Woods	1

1. Erroneously listed as having 12 wins on the official TT database
2. Erroneously listed as having 4 wins on the official TT database

FIM Motorcycle Grand Prix World Championship Rounds (1949–1976)

Isle of Man TT

Grand Prix motorcycle racing
Venue	Snaefell Mountain Course
First race	1949
Last race	1976
Most wins (rider)	Mike Hailwood (12)
Most wins (manufacturer)	MV Agusta (33)

The Isle of Man TT was part of the FIM Motorcycle Grand Prix World Championship (now MotoGP) between 1949 and 1976. During this period the Isle of Man TT Races counted as the United Kingdom round including the Sidecar TT, 50 cc Ultra-Lightweight TT, 125 cc Lightweight TT, 250 cc Lightweight TT, 350 cc Junior TT and 500 cc Senior TT races counted towards the FIM Motor-Cycle Grand Prix World Championship.

After the 1972 races, multiple world champion, 10-time TT race winner and dominant motorcycle racer of his time Giacomo Agostini announced he would never race again at the Isle of Man, declaring it too dangerous for international competition and that it was outrageous that such a race should ever be part of a scenario professional riders were forced into; at this point the Isle of Man TT was not suited to the growing professionalism and business aspects of Grand Prix motorcycle racing. More and more riders joined his boycott, and after 1976 the race was struck from the championship and replaced by the British Grand Prix.

Multiple winners (riders)

# Wins	Rider	Wins
		Category	Years won
12	Mike Hailwood	500cc	1961, 1963, 1964, 1965, 1966, 1967
		350cc	1962, 1967
		250cc	1961, 1966, 1967
		125cc	1961
10	Giacomo Agostini	500cc	1968, 1969, 1970, 1971, 1972
		350cc	1966, 1968, 1969, 1970, 1972
6	John Surtees	500cc	1956, 1958, 1959, 1960
		350cc	1958, 1959
	Jim Redman	350cc	1963, 1964, 1965
		250cc	1963, 1964, 1965
	Phil Read	350cc	1961
		250cc	1971, 1972
		125cc	1965, 1967, 1968
5	Geoff Duke	500cc	1950, 1951, 1955
		350cc	1951, 1952
	Carlo Ubbiali	250cc	1956
		125cc	1955, 1956, 1958, 1960
4	Tarquinio Provini	250cc	1958, 1959
		125cc	1957, 1959
	Chas Mortimer	350cc	1976
		250cc	1975
		125cc	1971, 1972
3	Ray Amm	500cc	1953, 1954
		350cc	1953
	Luigi Taveri	125cc	1962, 1964
		50cc	1965
	Charlie Williams	350cc	1975
		250cc	1973, 1974
2	Fergus Anderson	250cc	1952, 1953
	Bill Lomas	350cc	1955
		250cc	1955
	Cecil Sandford	250cc	1957
		125cc	1952
	Bob McIntyre	500cc	1957
		350cc	1957
	Gary Hocking	500cc	1962
		250cc	1960
	Hugh Anderson	125cc	1963
		50cc	1964
	Bill Ivy	250cc	1968
		125cc	1966
	Kel Carruthers	250cc	1969, 1970
	Tony Rutter	350cc	1973, 1974
	Tom Herron	500cc	1976
		250cc	1976

Multiple winners (manufacturers)

# Wins	Manufacturer	Wins
		Category	Years won
33	MV Agusta	500cc	1956, 1958, 1959, 1960, 1962, 1963, 1964, 1965, 1968, 1969, 1970, 1971, 1972
		350cc	1958, 1959, 1960, 1962, 1966, 1968, 1969, 1970, 1972
		250cc	1956, 1958, 1959, 1960
		125cc	1952, 1953, 1955, 1956, 1958, 1959, 1960
21	Yamaha	500cc	1974, 1976
		350cc	1973, 1974, 1975, 1976
		250cc	1968, 1970, 1971, 1972, 1973, 1974, 1975, 1976
		125cc	1965, 1966, 1967, 1968, 1971, 1972, 1973
18	Honda	500cc	1966, 1967
		350cc	1963, 1964, 1965, 1967
		250cc	1961, 1962, 1963, 1964, 1965, 1966, 1967
		125cc	1961, 1962, 1964
		50cc	1965, 1966
12	Norton	500cc	1949, 1950, 1951, 1952, 1953, 1954, 1961
		350cc	1950, 1951, 1952, 1953, 1961
7	Moto Guzzi	350cc	1955, 1956
		250cc	1949, 1951, 1952, 1953, 1955
	Suzuki	500cc	1973
		125cc	1963, 1970
		50cc	1962, 1963, 1964, 1967
3	Mondial	250cc	1957
		125cc	1951, 1957
	Gilera	500cc	1955, 1957
		350cc	1957
2	NSU	250cc	1954
		125cc	1954
	Benelli	250cc	1950, 1969
	Kawasaki	500cc	1975
		125cc	1969

By year

Year	50 cc (Ultra-Lightweight TT)		125 cc (Lightweight TT)		250 cc (Lightweight TT)		350 cc (Junior TT)		500 cc (Senior TT)		Report
	Rider	Manufacturer	Rider	Manufacturer	Rider	Manufacturer	Rider	Manufacturer	Rider	Manufacturer
1976					Tom Herron	Yamaha	Chas Mortimer	Yamaha	Tom Herron	Yamaha	Report
1975					Chas Mortimer	Yamaha	Charlie Williams	Yamaha	Mick Grant	Kawasaki	Report
1974					Charlie Williams	Yamaha	Tony Rutter	Yamaha	Phil Carpenter	Yamaha	Report
1973			Tommy Robb	Yamaha	Charlie Williams	Yamaha	Tony Rutter	Yamaha	Jack Findlay	Suzuki	Report
1972			Chas Mortimer	Yamaha	Phil Read	Yamaha	Giacomo Agostini	MV Agusta	Giacomo Agostini	MV Agusta	Report
1971			Chas Mortimer	Yamaha	Phil Read	Yamaha	Tony Jefferies	Yamsel	Giacomo Agostini	MV Agusta	Report
1970			Dieter Braun	Suzuki	Kel Carruthers	Yamaha	Giacomo Agostini	MV Agusta	Giacomo Agostini	MV Agusta	Report
1969			Dave Simmonds	Kawasaki	Kel Carruthers	Benelli	Giacomo Agostini	MV Agusta	Giacomo Agostini	MV Agusta	Report
1968	Barry Smith	Derbi	Phil Read	Yamaha	Bill Ivy	Yamaha	Giacomo Agostini	MV Agusta	Giacomo Agostini	MV Agusta	Report
1967	Stuart Graham	Suzuki	Phil Read	Yamaha	Mike Hailwood	Honda	Mike Hailwood	Honda	Mike Hailwood	Honda	Report
1966	Ralph Bryans	Honda	Bill Ivy	Yamaha	Mike Hailwood	Honda	Giacomo Agostini	MV Agusta	Mike Hailwood	Honda	Report
1965	Luigi Taveri	Honda	Phil Read	Yamaha	Jim Redman	Honda	Jim Redman	Honda	Mike Hailwood	MV Agusta	Report
1964	Hugh Anderson	Suzuki	Luigi Taveri	Honda	Jim Redman	Honda	Jim Redman	Honda	Mike Hailwood	MV Agusta	Report
1963	Mitsuo Itoh	Suzuki	Hugh Anderson	Suzuki	Jim Redman	Honda	Jim Redman	Honda	Mike Hailwood	MV Agusta	Report
1962	Ernst Degner	Suzuki	Luigi Taveri	Honda	Derek Minter	Honda	Mike Hailwood	MV Agusta	Gary Hocking	MV Agusta	Report
1961			Mike Hailwood	Honda	Mike Hailwood	Honda	Phil Read	Norton	Mike Hailwood	Norton	Report
1960			Carlo Ubbiali	MV Agusta	Gary Hocking	MV Agusta	John Hartle	MV Agusta	John Surtees	MV Agusta	Report
1959			Tarquinio Provini	MV Agusta	Tarquinio Provini	MV Agusta	John Surtees	MV Agusta	John Surtees	MV Agusta	Report
1958			Carlo Ubbiali	MV Agusta	Tarquinio Provini	MV Agusta	John Surtees	MV Agusta	John Surtees	MV Agusta	Report
1957			Tarquinio Provini	Mondial	Cecil Sandford	Mondial	Bob McIntyre	Gilera	Bob McIntyre	Gilera	Report
1956			Carlo Ubbiali	MV Agusta	Carlo Ubbiali	MV Agusta	Ken Kavanagh	Moto Guzzi	John Surtees	MV Agusta	Report
1955			Carlo Ubbiali	MV Agusta	Bill Lomas	Moto Guzzi	Bill Lomas	Moto Guzzi	Geoff Duke	Gilera	Report
1954			Rupert Hollaus	NSU	Werner Haas	NSU	Rod Coleman	AJS	Ray Amm	Norton	Report
1953			Leslie Graham	MV Agusta	Fergus Anderson	Moto Guzzi	Ray Amm	Norton	Ray Amm	Norton	Report
1952			Cecil Sandford	MV Agusta	Fergus Anderson	Moto Guzzi	Geoff Duke	Norton	Reg Armstrong	Norton	Report
1951			Cromie McCandless	Mondial	Tommy Wood	Moto Guzzi	Geoff Duke	Norton	Geoff Duke	Norton	Report
1950					Dario Ambrosini	Benelli	Artie Bell	Norton	Geoff Duke	Norton	Report
1949					Manliff Barrington	Moto Guzzi	Freddie Frith	Velocette	Harold Daniell	Norton	Report

Current lap records

Category	Rider(s)	Machine	Tyres	Year	Time	Average speed		Source [81]
						mph	km/h
Outright (all categories)	Peter Hickman	BMW M1000RR	Dunlop	2023	16:36.114	136.358	219.447	[82]
Superbike TT	Peter Hickman	BMW M1000RR	Dunlop	2023	16:42.825	135.445	217.978	[83]
Supersport TT	Michael Dunlop	Yamaha YZF-R6	Dunlop	2023	17:21.604	130.403	209.863	[84]
Lightweight TT	Michael Dunlop	Paton	Metzeler	2018	18:26.543	122.750	197.547	[85]
Ultra-Lightweight TT	Chris Palmer	Honda RS125		2004	20:20.87	110.52	177.86
Senior TT	Peter Hickman	BMW S1000RR	Dunlop	2018	16:42.778	135.452	217.989	[86]
Superstock TT	Peter Hickman	BMW M1000RR	Dunlop	2023	16:36.114	136.358	219.447	[87]
TT Zero	Michael Rutter	Mugen Shinden	Dunlop	2019	18:34.172	121.91	196.20	[88]
Sidecar TT	Ben Birchall and Tom Birchall	Honda CBR Sidecar	Avon	2023	18:45.850	120.645	194.159	[89]

Current race records

Category	Laps	Rider(s)	Machine	Tyres	Year	Race time	Average speed
							mph	km/h
Superstock TT	3	Peter Hickman	BMW S1000RR		2023	50:48:301	133.676	215.085
	4	Peter Hickman	BMW S1000RR	Dunlop	2018	01:08:49.976	131.553	211.714 [87]
Superbike TT	6	Michael Dunlop	BMW S1000RR	Dunlop	2023	01:43:01.855	131.832	212.163 [83]
Supersport TT	4	Michael Dunlop	Yamaha YZF-R6		2023	01:10:50.234	127.831	205.724 [90]
Supertwin TT	4	Michael Dunlop	Paton 650	Metzeler	2018	01:15:05.032	120.601	194.088 [85]
Lightweight TT	3	Ivan Lintin	Kawasaki ER650	Metzeler	2015	57:06.070	118.936	191.409 [91]
Senior TT	6	Peter Hickman	BMW S1000RR		2018	01:43:08.065	131.700	211.951 [86]
	4	John McGuinness	Honda CBR1000RR	Dunlop	2015	01:09:23.903	130.481	209.989
TT Zero	1	Michael Rutter	Mugen Shinden		2019	18:34.172	121.91	196.20 [88]
Sidecar TT	3	Ben Birchall and Tom Birchall	Honda CBR Sidecar	Avon	2023	56:41.815	119.816	192.825 [89]

10 fastest newcomers

	Rider(s)	Machine	Year	Average speed
				mph	km/h
1	Glenn Irwin	Honda	2022	129.850	208.973
2	Peter Hickman	BMW	2014	129.104	207.773
3	Davey Todd	Suzuki	2018	128.379	206.606
4	Nathan Harrison [92]	Honda	2022	128.087	206.136
5	Josh Brookes	Suzuki	2013	127.726	205.555
6	Ryan Cringle [93]	Honda	2023	126.096	202.932
7	Steve Plater	Yamaha	2007	125.808	202.468
8	Simon Andrews	BMW	2011	125.134	201.384
9	Keith Amor	Honda	2007	124.856	200.936
10	Horst Saiger	Kawasaki	2013	123.846	199.311

Race awards

Most Meritorious Female Competitor – The Susan Jenness Trophy is awarded yearly by the Executive Committee of the TT Supporters' Club, in recognition of the "most meritorious performance by a female competitor" during the previous TT meeting. The award has not been awarded since 2019.

Rider(s)	Race Category	Year
Jenny Tinmouth	solo competitor	2010
Fiona Baker-Milligan	as passenger, Sidecar 600 cc	2011 [94]
Debbie Baron	as driver, Ireson Kawasaki Sidecar 600 cc	2012 [95]
Estelle Leblond	as driver, Sidecar 600 cc	2013 [96]
Estelle Leblond	as driver, Sidecar 600 cc	2014 [97]
Fiona Baker-Milligan	as passenger, Sidecar 600 cc	2015 [98]
Maria Costello	solo competitor	2016 [99]
Estelle Leblond & Melanie Farnier	Sidecar 600 cc	2017 [100]
Julie Canipa	as passenger, Sidecar 600 cc	2018 [101]
Maria Costello	solo competitor	2019 [102]

Video games

There have been numerous video games based on the Isle of Man TT; the first was the 1995 Sega arcade game Manx TT Super Bike, which was later ported to the Sega Saturn in 1997. ^[103] Several other games have followed since, including Suzuki TT Superbikes (2005), TT Superbikes: Real Road Racing Championship and TT Superbikes Legends (both 2008), all of which were released exclusively for the PlayStation 2, and developed by Jester Interactive.

Bigben Interactive has since revived the TT game license, releasing TT Isle Of Man: Ride on the Edge in 2018 and two sequels in 2020 and 2023. ^{[104] [105] [106]}

Connected events

The Ramsey Sprint has been run since 1978 and is one of the biggest events during the TT race festival. The Sprint is run along the 1 km long Mooragh Promenade. The music festival Sprintfest is also held in the same town, Ramsey, on the weekend between practice week and race week.

See also

• List of named corners of the Snaefell Mountain Course
• List of Isle of Man TT Mountain Course fatalities
• North West 200
• Outline of motorcycles and motorcycling

Parliament Square, Ramsey on a race day in 2008

Notes

Citations

1. The Manx Experience. A Souvenir Guide to the Isle of Man. page 66-67 Gordon N.Kniverton 8th edition The Manx Experience (1987) Mannin Publishing Ltd
2. Isle of Man Examiner page 2 12 November 1921
3. Here Is the News: A Chronicle of the 20th Century, Volume 1 page 78 Gordon N.Kniverton & Terry Cringle Manx Heritage Foundation (1999) The Manx Experience ISBN   9781873120460
4. "The last Mad Sunday: major changes due for 2023 TT". Isle of Man. 6 June 2022. Retrieved 2 February 2024.
5. "TT schedule and road closures". Isle of Man. 29 May 2023. Retrieved 2 February 2024.
6. Official Programme – International Auto-Cycle Tourist Trophy 28 May 1907 pages 1–3 The Auto-Cycle Club (1907). Reproduction (2007) Isle of Man Post Office
7. Huber, Tim. "Everything You Need To Know About: The Isle of Man TT". RideApart.com.
8. Motor-Cycle pages 1 & 6 14 June 1972
9. Beryl Swain The first woman solo motorcyclist to finish in a TT race www.thetimes.co.uk, Retrieved 2021-03-10
10. "Will Beryl race on the Island again?" Motorcycle News , 27 Feb 1963, p.9. Accessed 13 April 2024.
11. Goddess of the Gas Pedals BBC Isle of Man, 13 November 2014 Retrieved 2015-01-18
12. Female Rider Profiles on the Isle of Man TT Website – Hilary Musson www.ttwebsite.com, Retrieved 2021-03-10
13. "First Lady. Hilary Musson and Yamaha". Motorcycle Sport, August 1978, p.302, p.310. Accessed 16 September 2022
14. KEH, ANDREW (7 June 2017). "Take a Lap in the World's Most Dangerous Race". New York Times . Retrieved 26 October 2017.
15. DeGroot, Nick (5 June 2016). "Two fatalities in a single day rock the 2016 Isle of Man TT". Motorsport.com. Retrieved 7 February 2017.^{[ dead link ‍]}
16. Lidz, Franz (8 September 2003). "38 Miles of Terror - Every year riders roar around the Isle of Man in the Tourist Trophy, a test of nerves and speed that may be sports' most dangerous event". Sports Illustrated - Vault.
17. Isle of Man's Big 3 Race Events : The Spectator Guide. TT (Tourist Trophy), Festival of Motorcycling (incorporating Manx Grand Prix), Southern 100 page 43 Trevor Barret (2014) Lily Publication ISBN   1907945237
18. "3 Dead After 2017 Isle of Man TT Crashes: Lambert, Hoek, Bonner". Ultimate Motorcycling. 7 June 2017.
19. CORONER OF INQUESTS (20 March 2008). "RAMSBOTHAM and JACOB and KENZIG, part 2". Isle of Man Judgments Online. Isle of Man Courts.
20. CORONER OF INQUESTS (20 March 2008). "RAMSBOTHAM and JACOB and KENZIG, part 1". Isle of Man Judgments Online. Isle of Man Courts.
21. "Coronavirus: Isle of Man cancels TT races amid virus outbreak". BBC News. 16 March 2020.
22. "2021 TT Festival: Covid-19 fears force Manx government to cancel event". BBC Sport. 30 November 2020. Retrieved 20 January 2021.
23. Island Racer 2004 pp 112–113 Mortons Media Group Ltd. ISBN   9780954244224
24. TT Pioneers – Early Car Racing in the Isle of Man by Robert Kelly p68 The Manx Experience (1996) The Alden Press ISBN No 1 873120 61 3
25. The Motor Cycle pp545 dated 19 June 1905
26. Island Racer 2003 p89 Mortons Media Group Ltd ISBN   0954244222
27. 2015 International Tourist Trophy Regulations page 22 ACU Events Isle of Man Limited (2015) Isle of Man Department of Economic Development
28. 2015 International Tourist Trophy Regulations ACU Events Isle of Man Limited page 5 and page 58 Appendix A
29. 2015 International Tourist Trophy Regulations page 2 & Appendix C ACU Events Isle of Man Limited
30. International Tourist Trophy Regulations 2015 page 5/Appendix D page 34 ACU Events (Isle of Man) Limited (2015) Isle of Man Department of Economic Development
31. "Technical Director Dave Hagen explains the Technical Tweaks for the 2023 Isle of Man TT Races". www.iomttraces.com. Retrieved 11 June 2023.
32. Patterson, Simon (29 May 2023). "THE COMPLETE BEGINNER'S GUIDE TO THE 2023 ISLE OF MAN TT". The Race. Retrieved 13 March 2024.
33. Motocourse History of the Isle of Man TT Races 1907–1989 page 18-19 and 23 (Mick Woollett Technical Notes) Nick Harris © Hazelton Securities Ltd (1990) Graficas Esatalla SA ISBN   0-905138-71-6
34. TT Topics and Tales by David Wright – Amulree Publications (4 April 2006) ISBN   1901508099
35. 2010 International Tourist Trophy Regulations page 2 ACU Events Isle of Man Limited
36. 1947 TT races, overview IoM TT.com. Retrieved 26 September 2015
37. 1950 Clubman TT 1000 cc class results IoM TT.com. Retrieved 26 September 2015
38. Motor Cycle, 9 March 1967, pp.284–286 Roadsters on the Magic Lap. A Production-TT Recce in Manxland by David Dixon. Accessed 26 September 2015
39. 1956 Clubman TT Junior class results IoM TT.com. Retrieved 26 September 2015
40. 1956 Clubman TT Senior class results IoM TT.com. Retrieved 26 September 2015
41. 1963 Senior race results, Competitor Ray Knight, Hughes Triumph Archived 4 March 2016 at the Wayback Machine , Manx Grand Prix.Org official website, Retrieved 19 October 2015
42. 1964 Senior race results, Competitor Ray Knight, Hughes Triumph Archived 4 March 2016 at the Wayback Machine , Manx Grand Prix.Org official website, Retrieved 19 October 2015
43. Ray Knight, Competitor Profile, IoM TT.com official website, Retrieved 19 October 2015
44. Motor Cyclist Illustrated, January 1965, p.41 More Production racing. Accessed 19 October 2015
45. "Will TT Zero class ever return?". Isle of Man. 7 June 2023. Retrieved 23 November 2023.
46. Yamaha keep travelling marshals on road and track, iomtt.com, 29 May 2013. Retrieved 11 September 2020
47. Yamaha keep travelling marshals on Road and Track iomtt.com, 29 May 2013. Retrieved 26 September 2020
48. "Travelling Marshals play a vital role". www.iomttraces.com. 9 June 2023. Retrieved 29 August 2023.
49. TT roads closure notice 2016 Archived 15 June 2016 at the Wayback Machine Retrieved 1 June 2016
50. TVIM, 28 August 2013, Retrieved 12 December 2015
51. "World's fastest way to die: Motorbike race that's killed 246". News.com.au. 2 July 2015.
52. Brown, Aaron (7 June 2017). "3 Riders Killed in Separate Incidents at 2017 Isle Of Man TT". The Drive. Retrieved 13 June 2017.
53. Backus, Richard (March–April 2017), "ISLE OF MAN", Motorcycle Classics , pp. 50–56
54. "Two more motorcyclists killed at Isle of Man TT races" . The Telegraph. 11 June 2016. Archived from the original on 12 January 2022. Retrieved 20 February 2017.
55. Lieback, Ron (13 June 2016). "2016 Isle of Man TT Recap – Winners & Fatalities". Ultimate MotorCycling. Retrieved 7 February 2017.
56. "World's fastest way to die: The most dangerous race on the planet". news.com.au. Retrieved 20 February 2017.
57. "Two more deaths take Isle of Man TT Festival toll to five". express.co.uk. Retrieved 20 February 2017.
58. "After deadliest year, how do you make 2023 Isle of Man TT safer?". BBC Sport. Retrieved 21 November 2023.
59. Race results, Steve Mercer iomtt.com Retrieved 25 January 2020
60. Isle of Man TT outlines changes after Mercer course car collision Autosport , 18 April 2019, Retrieved 26 January 2020
61. Isle of Man TT 2018: Injured Steve Mercer thanks fans for support BBC News , 5 December 2018. Retrieved 26 January 2020
62. TT organisers refuse to reveal contents of serious crash investigation BBC News , 7 December 2018. Retrieved 26 January 2020
63. Stricken Isle of Man TT racer Steve Mercer says 'it can't end like this' Belfast Newsletter , 9 April 2019. Retrieved 26 January 2020
64. Mercer crash report still unavailable one year on bikesportnews, 10 June 2019. Retrieved 26 January 2020
65. Derbyshire, Adrian (6 June 2018). "What we know so far about Mercer's crash". Isle of Man Today. Tindle Newspapers Ltd. Archived from the original on 25 February 2021. Retrieved 26 January 2020.
66. "Red flag procedure with immediate effect". Isle of Man Today. 31 May 2018.
67. White, Kyle (19 June 2018). "TT 2018: Ex-Motorsport Association chief will lead independent inquiry into Steve Mercer incident". The News Letter .
68. Steve Mercer denied access to official report into head-on collision at Isle of Man TT Belfast Newsletter , 11 April 2019. Retrieved 26 January 2020
69. They won't even tell Mercer what went wrong Archived 25 February 2021 at the Wayback Machine iomtoday, 5 April 2019. Retrieved 26 January 2020
70. Steve Mercer's compensation claim in wake of TT course car crash 'must be heard in Isle of Man' Belfast Newsletter , 29 August 2019. Retrieved 26 January 2020
71. ACU TT Statement Auto Cycle Union, 18 April 2019. Retrieved 26 January 2020
72. TT bosses outline safety changes following Mercer crash bikesportnews, 18 April 2019 Retrieved 27 January 2020
73. ACU official stands down in tracker row Archived 25 February 2021 at the Wayback Machine iomtoday.co.im, 6 September 2019. Retrieved 27 January 2020
74. "Meetings - iomtt.com: The World's #1 TT Website". Archived from the original on 16 April 2021.
75. "Isle of Man Government announce cancellation of 2020 TT Races - iomtt.com: The World's #1 TT Website". Archived from the original on 16 March 2020.
76. "Classic TT 2020 cancelled - iomtt.com: The World's #1 TT Website". Archived from the original on 15 August 2020.
77. "IOM Government statement: TT 2021 cancellation - iomtt.com: The World's #1 TT Website". Archived from the original on 4 December 2020.
78. The true cost of cancelling the Isle of Man TT goes far beyond losing racing's ultimate adrenaline rush The Independent , 2 April 2020. Retrieved 23 April 2021
79. "Provisional TT 2022 schedule confirmed - iomtt.com: The World's #1 TT Website". Archived from the original on 4 March 2021.
80. "Database". www.iomttraces.com. Retrieved 30 August 2023.
81. Records reported are lap times achieved during races only. Except where otherwise noted, sourcing in this table is from the IOMTT.COM website: title=IOM TT: Current Isle of Man TT Lap Records
82. "Isle of Man TT results: Peter Hickman becomes the world's fastest rider with record-breaking Senior TT victory". Isle of Man TT. Duke Marketing Limited. 2 June 2018. Retrieved 3 June 2018. Peter Hickman produces an astonishing record final lap to win the Senior TT at the Isle of Man TT to pip race-long leader Dean Harrison in one of the closest races ever seen.
83. "RST Superbike TT – Result Sheet" (PPDF). Isle of Man TT. Duke Marketing Limited. 2 June 2018. Archived (PDF) from the original on 12 June 2018. Retrieved 3 June 2018.
84. "Isle of Man TT Races Live Timing".
85. "Bennetts Lightweight TT – Result Sheet" (PDF). Isle of Man TT. Duke Marketing Limited. 8 June 2018. Archived (PDF) from the original on 12 June 2018. Retrieved 8 June 2018.
86. "PokerStars Senior TT" (PDF). Isle of Man TT. Duke Marketing Ltd. 8 June 2018. Archived (PDF) from the original on 12 June 2018. Retrieved 8 June 2018.
87. "RL360 Superstock TT – Result Sheet" (PDF). Isle of Man TT. Duke Marketing Limited. 4 June 2018. Archived (PDF) from the original on 28 December 2018. Retrieved 4 June 2018.
88. "Excellent stuff by @michaelrutter_ with a win at 121.9mph and @jm130tt 2nd at over 120mph and a top speed of 176mph o Sulby straight". 6 June 2019.
89. "Locate.im Sidecar TT 2" (PDF). Isle of Man TT. Duke Marketing Limited. 8 June 2018. Archived (PDF) from the original on 12 June 2018. Retrieved 8 June 2018.
90. "Monster Energy Supersport TT 2 – Result Sheet" (PDF). Monster Energy. 8 June 2018. Archived (PDF) from the original on 23 February 2019. Retrieved 8 June 2018.
91. "2015 Bennetts Lightweight TT results" (PDF). IOMTT.COM. Archived (PDF) from the original on 15 June 2015.
92. White, Kyle (18 January 2023). "Rising Manx prospect Nathan Harrison joins John McGuinness at Honda for 2023". NewsLetter. Retrieved 11 June 2023.
93. Isle Of Man TT Races (9 June 2023). "RL360 Superstock TT Race 2 - 9th June 2023 - Lap by Lap" (PDF). Retrieved 14 November 2023.
94. TT News Race Edition #2 2012 page 20 Isle of Man Newspapers Ltd (2012) Bridson & Horrox Ltd
95. TT Supporters Club Magazine – Winter 2012 page 15 (2012) TT Supporters Club
96. TT News Race Edition #3 2014 page 23 Isle of Man Newspapers Ltd (2014) Bridson & Horrox Ltd
97. TT Supporters Club Magazine – Summer 2015 page 10 (2015) TT Supporters Club
98. TT Supporters Club Magazine – Winter 2015 page 13 (2015) TT Supporters Club
99. TT Supporters Club Magazine – Winter 2016 page 22 (2016) TT Supporters Club
100. TT Supporters Club Magazine – Summer 2018 page 17 (2018) TT Supporters Club
101. TT News Issue One 2019 page 27 25 May 2019 Isle of Man Newspapers Ltd (2019) Bridson & Horrox Ltd
102. Rial, Stevie. "Costello MBE Receives Susan Jenness Trophy Accolade – Road Racing News" . Retrieved 28 August 2023.
103. "Manx TT Super Bike Review".
104. "Review: 'TT Isle of Man–Ride on the Edge 2' is Your Ticket to the Race Canceled by Coronavirus". Forbes .
105. "The Isle of Man TT is Coming to Your Game Room".
106. Noah, Steve (28 April 2023). "TT Isle of Man: Ride on the Edge 3 Video - Davey Todd Shares His Experience". Operation Sports. Retrieved 29 August 2023.

References

• Barker, Stuart (2007). 100 One Hundred Years of the TT. EMAP ISBN   1-84605-235-1
• Duckworth, Mick (2007). TT 100 – The Authorised History of the Isle of Man Tourist Trophy Racing. Lily Publications ISBN   9781899602674
• Harris, Nick (1991). Motocourse History of the Isle of Man Tourist Trophy Races 1907–1989 Hazelton Publishing ISBN   0-905138-71-6
• Mac McDiarmid (2004). The Magic of The TT. A Century of Racing over The Mountain Haynes Publishing. ISBN   1-84425-002-4
• Noyes, Denis (1999) 50 Years of Moto Grand Prix. Hazelton Publishing Ltd ISBN   1-874557-83-7
• Pidcock, Fred & Snelling, Bill (2007) History of the Isle of Man Clubman's TT Races 1947–1956. Amulree Publications ISBN   1-901508-10-2
• Savage, Mike (1997) TT Heroes. Amulree Publications ISBN   0-9521126-9-8
• Snelling, Bill (1996). The Tourist Trophy in Old Photographs Collected by Bill Snelling. Sutton Publishing ISBN   1-84015-059-9
• Stroud, Jon (2007). The Little Book of the TT. Green Umbrella Publishing ISBN   1-905828-24-1
• Wright, David (2007). 100 Years of the Isle of Man TT Races. A Century of Motorcycle Racing. Crowood Press ISBN   1-86126-906-4
• Wright, David (2006). TT Topics and Tales. Amulree Publications ISBN   1-901508-09-9

External links

• Official website by IoM Department for Enterprise
• Route of Isle of Man TT (Google Maps)

54°10′02″N4°28′44″W / 54.16722°N 4.47889°W / 54.16722; -4.47889