The 400 metres, or 400-meter dash, is a sprint event in track and field competitions. It has been featured in the athletics programme at the Summer Olympics since 1896 for men and since 1964 for women. On a standard outdoor running track, it is one lap around the track. Runners start in staggered positions and race in separate lanes for the entire course. In many countries, athletes previously competed in the 440-yard dash (402.336 m)—which is a quarter of a mile and was referred to as the 'quarter-mile'—instead of the 400 m (437.445 yards), though this distance is now obsolete.
The 4 × 100 metres relay or sprint relay is an athletics track event run in lanes over one lap of the track with four runners completing 100 metres each. The first runners must begin in the same stagger as for the individual 400 m race. Each runner carries a relay baton. Before 2018, the baton had to be passed within a 20 m changeover box, preceded by a 10-metre acceleration zone. With a rule change effective November 1, 2017, that zone was modified to include the acceleration zone as part of the passing zone, making the entire zone 30 metres in length. The outgoing runner cannot touch the baton until it has entered the zone, and the incoming runner cannot touch it after it has left the zone. The zone is usually marked in yellow, frequently using lines, triangles or chevrons. While the rule book specifies the exact positioning of the marks, the colours and style are only "recommended". While most legacy tracks will still have the older markings, the rule change still uses existing marks. Not all governing body jurisdictions have adopted the rule change.
The 4 × 400 metres relay or long relay is an athletics track event in which teams consist of four runners who each complete 400 metres or one lap. It is traditionally the final event of a track meet. At top class events, the first 500 metres is run in lanes. Start lines are thus staggered over a greater distance than in an individual 400 metres race; the runners then typically move to the inside of the track. The slightly longer 4 × 440 yards relay was a formerly run British and American event, until metrication was completed in the 1970s.
Donald "Don" James William Elgin is an Australian Paralympic amputee track and field athlete who won four medals at three Paralympics.
Evan George O'Hanlon, is an Australian Paralympic athlete, who competes mainly in category T38 sprint events. He has won five gold medals at two Paralympic Games – 2008 Beijing and 2012 London. He also represented Australia at the 2016 Rio Paralympics and 2020 Tokyo Paralympics, winning a silver medal and a bronze medal respectively. In winning the bronze medal in the Men's 100m T38 at the 2019 World Para Athletics Championships in Dubai, O'Hanlon became Australia's most successful male athlete with a disability. His bronze medal took him to 12 medals in five world championships – one more than four-time Paralympian Neil Fuller.
Richard Andrew Colman is an Australian Paralympic athlete, competing mainly in category T53 sprint events. He was born with spina bifida. He represented Australia at the four Paralympics - 2004 to 2016.
The men's 4 x 100 metres relay events at the 2011 IPC Athletics World Championships were held at the QEII Stadium on 24, 27 and 29 January
Brenden Hall, is an Australian Paralympic amputee swimmer who won two gold medals at the 2012 Summer Paralympics in London. He represented Australia at the 2016 Rio Paralympics where he won one gold, one silver and one bronze medal. He competed at 2020 Summer Paralympics, his fourth games.
The men's 4x400 metres relay at the 2013 IPC Athletics World Championships was held at the Stade du Rhône from 20 to 29 July.
Brent Lakatos is a Canadian wheelchair racer in the T53 classification. Lakatos has represented Canada at three Summer Paralympics, and at the 2012 Games he won three silver medals in the sprint and mid-distance events. In 2013 Lakatos reached the pinnacle of his sport when he collected four gold medals at the IPC Athletics World Championships and became world champion at his classification in the 100m, 200m and 400m events.
The men's 4x400 metres relay at the 2015 IPC Athletics World Championships was held at the Suheim Bin Hamad Stadium in Doha from 22–31 October.
The men's 4 × 100 metres relay at the 2016 IPC Athletics European Championships were held at the Stadio Olimpico Carlo Zecchini in Grosseto from 11 to 16 June.
The men's 4 × 400 metres relay at the 2016 IPC Athletics European Championships were held at the Stadio Olimpico Carlo Zecchini in Grosseto from 11–16 June. The men's T53/54 relay was a non-medal event.
The men's 400 metres at the 2017 World Para Athletics Championships was held at the Olympic Stadium in London from 14 to 23 July.
The women's 4 x 400 metres relay at the 2017 World Para Athletics Championships was held at the Olympic Stadium in London from 14 to 23 July.
The men's 4 x 100 metres relay at the 2017 World Para Athletics Championships was held at the Olympic Stadium in London from 14–23 July.
Nathan Maguire is a British wheelchair racer. He won multiple medals at both the 2018 and 2021 World Para Athletics European Championships, and also won the 400 metres mixed class race at multiple British Athletics Championships. Maguire competed in the 4 × 400 metres relay T53/T54 at the 2016 Summer Paralympics, and competed in the 400 metres T54, 800 metres T54 and mixed 4 × 100 metres relay events at the delayed 2020 Summer Paralympics. He was part of the British team that won a silver medal in the 2020 Paralympic mixed 4 × 100 metres relay. He also competed for England at the 2018 Commonwealth Games, and won the 1500 metres T54 event at the 2022 Commonwealth Games.
