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.
Rondell Bartholomew is a Grenadian track and field sprinter who specialises in the 400 metres. He has represented his country at two World Championships in Athletics and was a 400 m world finalist in 2011. His personal best for the event is 44.65 seconds.
David Klech is an American decathlete. He attended the University of Oregon, after transferring from the University of California, Los Angeles.
Kori Carter is an American track and field athlete specializing in hurdle races, the World Champion in the 400 metres hurdles event in 2017. Kori Carter was a nine-time All-American at Stanford University sponsored by Jordan Brand.
Dalilah Muhammad is an American track and field athlete who specializes in the 400 meters hurdles. She is the 2016 Rio Olympics champion and 2020 Tokyo Olympics silver medalist, becoming at the latter the then-second-fastest woman of all time in the event with her personal best of 51.58 seconds. Muhammad was second at both the 2013 and 2017 World Championships to take her first gold in 2019, setting the former world record of 52.16 s. She was the second female 400 m hurdler in history, after Sally Gunnell, to have won the Olympic, World titles and broken the world record. At both the 2019 World Championships and Tokyo Games, she also took gold as part of women's 4 × 400 metres relay team.
Vernon Larnard Norwood is an American track and field athlete who specializes in the 400 meters.
Raevyn Rogers is an American middle-distance athlete. She won a bronze medal in the 800 meters at the 2020 Tokyo Olympics, becoming the fourth fastest woman in U.S. history in the event. At the 2019 World Championships, Rogers came from seventh with 100m remaining in the race to place silver over USA teammate Ajeé Wilson in bronze. She earned a world indoor title as a member of national 4x400 m relay squad that took gold at the 2018 World Indoor Championships.
Amanda Crawford is an American-born, Grenadian sprinter who specializes in the 400 metres. In 2016, she represented Grenada at the CARIFTA Games and earned a silver medal in the 400m, in the under-18 girls' category. She was also a part of the women's 4X400m Relay team which secured a silver medal at the 2016 OECS Track & Field Championships with teammates Meleni Rodney, Kenisha Pascal and Kanika Beckles.
Rai Benjamin is an American hurdler and sprinter specializing in the 400 m and 400 m hurdles. He is the second fastest man in history in the 400 m hurdles with a personal best time of 46.17 s. He won a silver medal at his first Olympic Games in 2021 and won the 400 m hurdles race at the 2024 Summer Olympics. Benjamin also won silver medals and at the World Championships in 2019 and 2022 in the men's 400 m hurdles, and gold medals in the 4 × 400 m relay in 2019 and 2021.
Wadeline Jonathas is an American track and field athlete. She won gold medal in the women's 4 × 400 meters event at the 2019 World Athletics Championships and finished in 4th place in the 400 meters, in 49.60 seconds. Jonathas represents United States in women's 400 meters at the 2020 Tokyo Olympics.
