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.
Gabrielle Lisa Thomas is an American track and field athlete specializing in 100 and 200 meter sprint who is the 2024 200m Olympic champion. Born in Georgia and raised in Massachusetts, Thomas competed in college for Harvard University before beginning a professional track career in 2018. Thomas also has a master of public health degree in epidemiology.
The 300 metres is an uncommon sprinting event in track and field competitions. The race starts on a straight and therefore comprises two straights and one bend.
Peirresha Alexandra Shakes-Drayton is a British retired track and field athlete. After specialising in the 400 metres hurdles in the early part of her career, a knee injury at the 2013 World Championships forced Shakes-Drayton to concentrate on the 400 metres on her return to athletics. She is the 2013 European Indoor Champion in the 400 metres and won a 2012 World Indoor Championship gold medal in the 4 x 400 metres relay. She has also won silver and bronze medals in the 4 × 400 m relay at the World Championships.
Javier Culson Pérez is a Puerto Rican athlete and Olympiad bronze medalist who specialises in the 400-metre hurdles. After becoming involved with the discipline in his late teen years, he entered the podium in some regional youth events, including the Pan American Junior Athletics Championships. Culson is a two-time silver medallist at the International Association of Athletics Federations's (IAAF) World Championships and an elite contender in the Samsung Diamond League, where he finished second overall in 2011. He has also garnished medals in events with lower profiles, including the Central American and Caribbean Games and the Ibero-American Championships. He currently holds the record as "the world's fastest man" in that category. Culson also competed at the 2012 Olympics in London winning the bronze medal in the 400-metre hurdles race. In the 2016 Olympics in Rio, Culson made it all the way to the finals of the men's 400m hurdles only to be disqualified by a false start.
Luguelín Miguel Santos Aquino is a Dominican sprinter, who specialises in the 400 m. He was the silver medallist in the event at the 2012 London Olympics at the age of nineteen. His personal best is 44.11 seconds.
Marlena Hilari Wesh is a Haitian-American sprinter who competed in the 2012 Summer Olympics for Haiti in the women's 200-meter and 400-meter sprints. She appeared on the twenty-sixth season of The Bachelor.
Laia Forcadell Arenas is a female Spanish sprinter and hurdler. She won the gold medal for the 400 m hurdles at the 2006 Ibero-American Championships in Ponce, Puerto Rico, and bronze at the 2010 Ibero-American Championships in San Fernando, Cádiz, Spain.
Matthew Hudson-Smith is a British track and field sprinter who specialises in the 400 metres. He holds, as of August 2024, the British and European record, running a personal best of 43.44 seconds for the distance at the 2024 Summer Olympics. 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.
Vernon Larnard Norwood is an American track and field athlete who specializes in the 400 meters.
Fredrick Lee Kerley is an American track and field sprinter. He was the Olympic silver medalist over 100 m at the 2020 Olympics and bronze medalist at the 2024 Olympics in the same event. Kerley has earned an additional six medals at the World Championships, most notably 100m gold at the 2022 edition. He has also medalled in the 400m, 4 x 100m relay, and 4 × 400 m relay and won eleven Diamond League races, including two Diamond League finals - the 400m in 2018 and the 100m in 2021.
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. She won a gold medal at the 2024 Summer Olympics in the mixed 4 x 400 metres relay.
Jonathan Jones is a sprinter from Barbados.
The following table is an overview of national records in the 400 metres.
Ezekiel Nathaniel is a Nigerian track and field athlete who is a 400 metre hurdler.
Yemi Mary John is a British track and field athlete. She won the gold medal in the 400 metres at the 2022 World Athletics Under-20 Championships.
United States (until 2022)
Puerto Rico (after 2022)