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.
Caio Oliveira de Sena Bonfim is a Brazilian racewalker. In the 20 km walk, he was a silver medalist at the 2024 Olympic Games and a bronze medalist at the 2017 and 2023 World Championships. He also finished 4th at the 2016 Olympic Games. His mother, Gianetti Bonfim, was also an international racewalker for Brazil.
Mahau Camargo Suguimati is a Brazilian track hurdler of Japanese ancestry. Since the age of eight, Suguimati had lived and studied for sixteen years in Niiza, Saitama Prefecture, Japan. Suguimati also attended schools around the prefecture, where he discovered his natural ability and talent of running and hurdling, under his personal coach and trainer Atsushi Hishinuma. He made his international debut, and represented his birth nation Brazil at the 2007 Pan American Games in Rio de Janeiro, where he finished seventh in the final of the 400 m hurdles, with his personal best time of 49.63 seconds.
Karsten Warholm is a Norwegian sprinter who competes in the 400 metres and 400 m hurdles. He is the 2020 Tokyo Olympic champion, silver medalist at the 2024 Paris Olympics, three-time world champion and world record holder in the latter event.
The 2015 South American Championships in Athletics was the 49th edition of the biennial athletics competition between South American nations. The event was held in the Peruvian capital of Lima from 12 to 14 June at the Videna Stadium. It was the eighth time Lima hosted the event, having last done so for the 2009 edition. A total of 44 events were held, evenly divided between the sexes, continuing with the event programme established in 2001.
Gabrielle Gonçalves Roncatto is a Brazilian swimmer. She finished 5th in the 400m freestyle at the 2024 Doha World Championships.
Guilherme Pereira da Costa is a Brazilian swimmer. He is the 400m freestyle bronze medalist at the 2022 World Championships. At the Pan American Games, he was champion of the 400, 800 and 1500 metre freestyle. He is also currently the South American record holder in the 400, 800, and 1500 metre freestyle.
Lucas da Silva Carvalho is a Brazilian sprinter specialising in the 400 metres. He represented his country at the 2017 World Championships without qualifying for the semifinals. He was also an unused reserve runner for the Brazilian 4 × 400 metres relay at the 2016 Summer Olympics. He competed at the 2020 Summer Olympics.
Gabriel Oliveira Constantino is a Brazilian hurdler. He is the current South American record holder in the 110m hurdles, with a time of 13.18. Constantino finished 6th in the men's 60 metres hurdles at the 2018 IAAF World Indoor Championships. He advanced to the final on time, being the second fastest and final non-automatic qualifier. To qualify for the championships, he equaled at national and South American record of 7.60 seconds.
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.
Fernando Muhlenberg Scheffer is a Brazilian swimmer. In the 200 metre freestyle, he is the bronze medalist of the Tokyo 2020 Olympics, the gold medalist at the 2019 Pan American Games and the South American record holder in the event. He became the world champion and world record holder in the 4x200m freestyle relay at the 2018 World Swimming Championships in short course.
Alison Brendom Alves dos Santos is a Brazilian athlete specialising in the 400 metres hurdles. He is a bronze medalist from the 2020 and 2024 Summer Olympics, the 2022 World Champion and the third fastest athlete in the history of the event, in addition to being a gold medalist in the 2019 Pan American Games. Dos Santos is currently the South American and Pan American record holder in the competition.
Eduardo Rodrigues dos Santos de Deus Junior is a Brazilian specialising in the high hurdles. He won a bronze medal at the 2019 Pan American Games.
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.
Alexander Doom is a Belgian sprinter specializing in the 400 metres. In 2024, he became the first male athlete to win the individual 400 metres and 4×400 metres relay at the same World Athletics Indoor Championships He has won several medals in international competitions with the Belgian 4 × 400 metres relay team and holds a personal best of 44.15 over the 400 metres.
David Kendziera is an American Olympic athlete who runs the 400m hurdles and 110m hurdles.
Stephan Alexander De Freitas Steverink is a Brazilian competitive swimmer. He won the gold medal in the 400-metre freestyle and the silver medal in the 400-metre individual medley at the 2022 World Junior Championships. At the 2021 Junior Pan American Games, he won a gold medal in the 4×200-metre freestyle relay, silver medals in the 800-metre freestyle, 400-metre individual medley and 4×100-metre medley relay, as well as a bronze medal in the 1500-metre freestyle.
Cathelijn Peeters is a Dutch track and field athlete who competes in hurdling and sprinting and previously competed in the combined events and hammer throw. Peeters specializes in the 400 metres hurdles 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.
Maria Fernanda de Oliveira da Silva Costa is a Brazilian swimmer. She finished 4th in the 400m freestyle, and 5th in the 200m freestyle, at the 2024 World Championships, in Doha.
