James Stephen Baulch is a retired Welsh sprint athlete and television presenter. He won the 400 metres gold medal at the 1999 World Indoor Championships. As a member of British 4 × 400 metres relay teams, he won a gold medal at the 1997 World Championships, and silver medal at the 1996 Olympic Games. He represented Wales at the Commonwealth Games where he won an individual silver and a bronze medal in the 4 × 400 m relay.
Roger Anthony BlackMBE is an English former athlete who competed internationally for Great Britain and England. During his athletics career, he won individual silver medals in the 400 metres sprint at both the Olympic Games and World Championships, two individual gold medals at the European Championships, and 4 × 400 metres relay gold medals at both the World and European Championships.
Sunday Bada was a Nigerian sprinter who specialized in the 400 metres event. He won three medals at the World Indoor Championships, including a gold medal in 1997. His personal best time was 44.63 seconds, and with 45.51 seconds indoor he holds the African indoor record. He set a national record in the 4 x 400 metres relay at the 2000 Olympics, where the Nigerian team also won gold medals after the disqualification of the US team who had finished first.
Lee McConnell is a retired Scottish athlete, who competed in the 400 metres and 400 metres hurdles having started her career as a high jumper. She is a three-time Olympian who represented Great Britain in 2004, 2008 and 2012. With 12 medals from major championships, McConnell is the third most decorated Scottish track and field athlete of all-time. She was voted Scottish Athlete of the Year in 2002, 2003 and 2007.
Nicola Clare Sanders is a former British track and field sprinter. She began her career as a 400 metres hurdles specialist before concentrating on the 400 metres from 2006 onwards. Her 400 metres personal best is 49.65 seconds. She holds the British indoor record with 50.02 seconds, which ranks her as the fifth fastest woman of all-time indoors.
Martyn Joseph Rooney is an English sprinter who specialises in the 400 metres event. He reached the 400 m final at the 2008 Summer Olympics and won bronze in the 4×400 metres relay. A mainstay on the anchor leg of the Great Britain and England 4 x 400 metre relay teams, at the 2009 World Championships in Athletics he won a silver medal with the Great Britain relay team, and bronze in the 2015 and 2017 World Championships.
Todd Anthony Bennett was a British athlete who competed mainly in the 400 metres.
Jennifer Brenda "Jenny" Meadows is a retired British athlete. Her main event was the 800 metres, although she previously competed also over the 400 metres. She won the bronze medal at the 2009 World Championships, and a silver at the 2010 World Indoor Championships. At the European Athletics Championships, Meadows took silver outdoors in 2010 and gold indoors in 2011. She also had some international success as part of the Great Britain women's 4 x 400 metres relay squad.
Richard Thomas Buck is a former British sprinter who specialised in the 400 metres event. He is from York, and trains in Loughborough. Buck's current club is City of York A.C.. Previously, he had an 18-month spell at Scarborough A.C. He has been trained by his grandfather, Geoff Barraclough, and is now coached by Nick Dakin.
Matthew John "Matt" Elias is a retired Welsh athlete who specialised in the 400 metres sprint and 400 metres hurdles. During his international career he represented Great Britain. In 2003 he won a gold medal at the European Championships and at the 2004 Olympic Games in Athens he finished 5th in the 4 × 400 m relay, He is also a part of Super Schools.
Victoria Barr is a British track and field athlete who competes in the 400 metres sprint. Her personal best for the event is 52.40 seconds. She is a frequent member of the British 4×400 m relay team and won a bronze medal at the European Athletics Championships in 2010. She was a silver medallist in the relay for England at the 2010 Commonwealth Games.
Michael Walter Mathieu is a retired Bahamian sprinter hailing from Freeport, Grand Bahama who specialized in the 200 metres and 400 metres. He was part of the Bahamian silver medal-winning team in the men's 4×400 metres relay at the 2008 Beijing Olympics, running second leg and recording a 44.0 split, and the gold medal-winning team at the 2012 Summer Olympics. He was also a part of second place relay team at the 2007 World Championships. He won the bronze medal in the 4x400 metres relay in the 2016 Summer Olympics.
Marcus Adam is an English retired sportsperson, who represented Great Britain as both a sprinter and a bobsledder.
Anyika Onuora is a British retired sprint track and field athlete who competed in the 100 metres, 200 metres and 400 metres, and also the 4×100 metres relay and 4x400 metres relay.
Eilidh Doyle is a retired British track and field athlete. Originally running as Eilidh Child, she specialised in the 400 metres hurdles outdoors, and the 400 metres flat indoors, as well as the 4 x 400 metres relay on both surfaces. She represented Great Britain at the 2012 Olympic Games in London, and won an Olympic bronze medal in the 4 x 400 metres relay at the 2016 Games in Rio de Janeiro. Individually, she is the 2014 European Champion and a three-time Commonwealth silver medalist in the 400 metres hurdles.
Shana Amanda Cox is an American-born track and field athlete, who competes internationally for Great Britain since 2011. She specialises in the 200 metres and 400 metres.
Matthew Hudson-Smith is a British track and field sprinter who specialises in the 400 metres. He holds, as of May 2024, the British and European record, running a personal best of 44.07 seconds for the distance at the Oslo Bislett Games. He was the 2018 European Champion in 400 metres, and a member of the gold-winning teams in the 4 x 400 metre relay at the 2014 European Athletics Championships, with Great Britain and 2014 Commonwealth Games with England.
Seren Bundy-Davies is a Welsh track and field sprinter who competes in the 400 metres for Great Britain. She came to international prominence at the 2015 European Athletics Indoor Championships, winning bronze in the 400 metres and silver in the 4 × 400 metres relay. She won a Bronze medal in the 4 × 400 m relay at the 2015 World Championships in Athletics.
Kirsten McAslan is a British sprinter. She competed in the 4 × 400 metres relay event at the 2015 World Championships in Beijing, China. Her best in the 400 m sprint is 52.13s.
Nethaneel Joseph Mitchell-Blake is a British sprinter who specialises in the 200 metres. He was the 2013 European Junior Champion and his personal best of 19.95 seconds ranks him as the second-fastest in Britain of all-time in the event. He is only the second Briton, after Adam Gemili to break both 10 seconds for 100 metres and 20 seconds for 200 metres. Part of the Great Britain 4 x 100-metre relay team that won the World title in 2017, he won his first major individual honour, a silver medal, in the individual 200 metres at the 2018 European Athletics Championships before claiming another relay title running for Great Britain, the eventual gold medalists, in the heats of the 4 x 100 metres.On 18 February 2022 it was announced that Nethaneel and his teammates CJ Ujah, Zharnel Hughes and Richard Kilty would be stripped of their 4 × 100 metres relay 2020 Summer Olympics silver medals after the Court of Arbitration for Sport found CJ Ujah guilty of a doping violation.
