The 400 metres hurdles is a track and field hurdling event. The event has been on the Olympic athletics programme since 1900 for men and since 1984 for women.
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 × 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, totaling 1600 meters. It is traditionally the final event of a track meet. The first leg and the first bend of the second leg are 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, on an Imperial distance, was a formerly run British Commonwealth and American event, until metrication was completed in the 1970s.
The USA Track & Field Outdoor Championships is an annual track and field competition organized by USA Track & Field, which serves as the American national championships for the sport. Since the year 1992, in the years which feature a Summer Olympics, World Athletics Championships, Pan American Games, NACAC Championships, or an IAAF Continental Cup, the championships serve as a way of selecting the best athletes for those competitions.
Lisanne de Witte is a Dutch track and field athlete who competes in sprinting. She specialises in the 400 metres, where she held the Dutch record with her personal best time of 50.77 seconds from 2018 to 2021.
Sydney Michelle McLaughlin-Levrone is an American hurdler and sprinter who competes in the 400 meters hurdles and is the world record holder in that event. She has won gold in the 2020 and 2024 Summer Olympics, as well as the 2022 World Athletics Championships. She set a world record time of 50.37 seconds at the 2024 Summer Olympics on August 8, 2024, breaking her own old world record of 50.65 seconds. She is the first track athlete to break four world records in the same event; setting four world records during 13 months, she was the first woman to break the 52-second and 51-second barriers in the 400 m hurdles. She won the silver medal at the 2019 World Championships. At all four competitions, she also took gold as part of a women's 4 × 400 m relay team.
Natalia Kaczmarek is a Polish sprinter who specialises in the 400 metres. She is the 2024 European champion as well as the European silver medalist from 2022. She also won the bronze medal at the 2024 Summer Olympics. Kaczmarek earned several global medals as part of 4 x 400 m relays, including gold in the mixed event and silver in the women's event at the 2020 Tokyo Olympics.
Rhasidat Adeleke is an Irish sprinter.
Femke Bol is a Dutch track and field athlete who competes in hurdling and sprinting. She specialises in the 400 metres hurdles, where she is the 2023 World Champion, and in the 400 metres, where she is the 2024 World Indoor Champion and the short track world record holder. In the 4 × 400 metres relay, she is the 2023 World Champion and the 2024 World Indoor Champion with the Dutch women's team and the 2024 Olympic Champion with the Dutch mixed team.
Lieke Klaver is a Dutch track and field athlete who competes in sprinting. She specializes in the 200 metres and in the 400 metres. In the 4 × 400 metres relay, she is the 2023 World Champion and the 2024 World Indoor Champion with the Dutch women's team and the 2024 Olympic Champion with the Dutch mixed team.
Anna Cockrell is an American track and field athlete competing in sprinting and hurdling. She is a two-time medalist at the 2019 Pan American Games in Lima, Peru and won the silver medal at the 2024 Summer Olympics in 400 m hurdles event.
Sharlene Mawdsley is an Irish athlete who specialises in the 400 meters and other sprint events.
Bryce Deadmon is an American track and field athlete. In July 2023, he became US national champion in the 400 meters.
The women's 4 × 400 metres relay at the 2022 World Athletics Indoor Championships took place on 20 March 2022.
Talitha LaNae Clark Diggs is an American track and field sprinter specializing in the 400 meters. Diggs won the 2022 U.S. national 400 m title.
The mixed 4 × 400 metres relay at the 2024 Summer Olympics was held in two rounds at the Stade de France in Paris, France, on 2 and 3 August 2024. This was the second time that the mixed 4 × 400 metres relay was contested at the Summer Olympics. A total of 16 teams qualified for the event through the 2024 World Athletics Relays or the World Athletics top list.
The mixed 4 × 400 metres relay at the 2023 World Athletics Championships was held at the National Athletics Centre in Budapest on 19 August 2023.
The women's 400 metres hurdles at the 2024 Summer Olympics was held in four rounds at the Stade de France in Paris, France, from 4 to 8 August 2024. This was the eleventh time that the women's 400 metres hurdles was contested at the Summer Olympics. A total of 40 athletes were able to qualify for the event by entry standard or ranking.
The men's 4 x 100 metres relay at the 2024 Summer Olympics was held in two rounds at the Stade de France in Paris, France, on 8 and 9 August 2024. This was the 26th time that the men's 4 x 100 metres relay was contested at the Summer Olympics. A total of 16 teams were able to qualify for the event through the 2024 World Athletics Relays or the World Athletics top list.
The men's 4 x 400 metres relay at the 2024 Summer Olympics was held in two rounds at the Stade de France in Paris, France, on 9 and 10 August 2024. This was the 26th time that the men's 4 x 400 metres relay was contested at the Summer Olympics. A total of 16 teams were able to qualify for the event through the 2024 World Athletics Relays or the World Athletics top list.
