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 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.
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.
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.
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.
Shiann Salmon is a Jamaican track and field athlete who specializes in the 400 metres hurdles and 400 metres. She represented Jamaica at the 2019 World Athletics Championships, competing in women's 400 metres hurdles.
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.
Jonathan Jones is a sprinter from Barbados.
Anna Hall is an American athlete specializing in the combined events. She won the silver medal in the heptathlon at the 2023 World Championships and the bronze medal at the 2022 World Championships. Hall is the North American indoor record holder for the pentathlon.
Britton Wilson is an American track and field athlete specializing in the 400 meters hurdles and 400 meters. She finished fifth in the 400 m hurdles at the 2022 World Athletics Championships, her major championship debut. Wilson is the North American indoor record holder for the 400 m dash with a time of 49.48 seconds, set on March 11, 2023, in Albuquerque.
Jaide Alexandra Stepter Baynes is an American track and field athlete who specializes in the 400 metres.
Masai Russell is an American track and field sprinter and hurdler. She won the gold medal at the 2024 Summer Olympics in the 100 m hurdles event. Russell is the U.S. NCAA Record holder in the 100 m hurdles.
Christopher Bailey is an American track and field athlete. He has won medals in the Athletics World Championships and World Athletics Indoors Championships in the 4x400 metres relay.
Craig James Allen is an American track and field athlete who competes in the 400 meters hurdles. He is the US men's national record holder over 400m hurdles indoors.
Rosey Effiong is an American track and field athlete.
Bridget Williams is an American track and field athlete who competes in the pole vault. Williams grew up training and competing in Artistiic Gymnastics, but started competing pole vaulting at her Junior High school, with some success in high school she earned an athletic scholarship to the University of Virginia. Williams finished fourth at the US national championships in Eugene, Oregon in July 2023. She was selected for the 2023 World Athletics Championships in Budapest in August 2023. She qualified for the final with a clearance of 4.65 metres. She won the gold medal in the pole vault at the 2023 Pan American Games in Santiago, Chile. She won the 2024 US Olympic trials with a clearance of 4.73 metres. At the 2024 Paris Olympics games, Williams finished 12th in her heat, resulting in a 22nd place overall, which resulted in her not qualifying to the finals.
Justin Gaymon is an American former 400 metre hurdler. He was the 2008 NACAC U23 champion, and in 2008 he was just 0.04 seconds away from making the U.S. Olympic team.
Jasmine Jones is an American track and field athlete. She represented the United States at the 2024 Summer Olympics in the 400 m hurdles, finishing fourth in the final. She was runner-up in the 60 metres hurdles at the 2024 USA Indoor Track and Field Championships.
