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.
Antonio McKay Sr. is a former track and field athlete who specialized in the 400 meters.
The Georgia Bulldogs are the intercollegiate athletic teams that represent the University of Georgia. The Bulldogs compete in NCAA Division I and are members of the Southeastern Conference (SEC). The official mascot is an English Bulldog named Uga,, while the costumed character version of Uga is Hairy Dawg. Most of the school's athletic teams are known as the Bulldogs, with the exception of the women's basketball team, known as the "Lady Bulldogs", and the women's gymnastics team, known as the "GymDogs".
Tora Lian-Juin Harris is an American high jumper. He is a Princeton University engineer of Taiwanese and African-American descent. Harris is an Olympian, a four-time national champion and two-time bronze medalist in international competition. He represented Team USA twice in the IAAF World Championships in Athletics, three times in the IAAF World Indoor Championships in Athletics and has served as a representative once in the IAAF Continental Cup. He spent two years as the No. 1 ranked high jumper in the United States.
Martin Marić is a Croatian track and field athlete who competes in the discus throw. He has a personal best of 67.92 m, achieved in April 2014 in Chula Vista, California. He also has 72.31 m in the javelin throw, achieved in May 2006. Martin Marić has been a throws coach at the University of Virginia Since 2012. Maric spent the springs of 2010 and 2011 as a volunteer assistant coach at the University of Florida.
Shaunae Miller-Uibo is a Bahamian track and field sprinter who competes in the 200 and 400 metres. She is a two-time Olympic champion after winning the women's 400 metres at the 2016 Rio Olympics and again at the 2020 Tokyo Olympics.
Phyllis Chanez Francis is an American track and field athlete. She won the gold medal at the 2017 World Championships in the 400 metres and 4 × 400 metres relay events.
Omar McLeod is a Jamaican professional hurdler and sprinter competing in the 60 m hurdles and 110 m hurdles. In the latter event, he is the 2016 Olympic champion and 2017 World champion. He was NCAA indoor champion in the 60 m hurdles in 2014 and 2015 and outdoor champion in the 110 m hurdles in 2015; he turned professional after the 2015 collegiate season, forgoing his two remaining years of collegiate eligibility. His personal best in the 110 m hurdles ranks him equal 7th on the world all-time list.
Salwa Eid Naser is a Nigerian-born Bahraini sprinter who specialises in the 400 metres. She was the 2019 World champion with the third fastest time in history of 48.14 seconds, becoming the youngest-ever champion in the event and also the first woman representing an Asian nation to win that event at a World Championships. The mark places her only behind contested results of Marita Koch and Jarmila Kratochvílová. Over the distance, at only 19, Naser was the 2017 World silver medallist. She has also won, as a member of the Bahraini mixed-gender 4x400 m relay team, the 2019 World Championships bronze medal.
Keturah Orji is an American track and field athlete specializing in the triple jump. She has set a new US triple jump record twice.
Kendell Williams is an American track and field athlete competing in the combined events. She represented her country at the 2016 World Indoor Championships finishing sixth. Williams qualified to represent the United States at the 2020 Summer Olympics. She won the bronze medal at the 2022 World Indoor Championships in Belgrade.
Christian Coleman is an American professional track and field sprinter who competes in the 60 metres, 100 m and 200 m. The 2019 world champion in the 100 meters, he also won gold as part of men's 4 × 100-meter relay. He holds personal bests of 9.76 seconds for the 100 m, which made him the 6th fastest all-time in the history of 100 metres event, and 19.85 for the 200 m. Coleman is the world record holder for the indoor 60 meters with 6.34 seconds. He was the Diamond League champion in 2018 and 2023 and the world number one ranked runner in the men's 100 m for the 2017, 2018 and 2019 seasons.
Shaquille Walker is an American retired track runner competing for the United States and a former Brigham Young University track student-athlete.
Suziann Reid is an American-Jamaican former track and field sprinter who specialized in the 400-meter dash. She set a personal record of 50.74 seconds for the distance in 1999. She was a silver medalist with the American women's 4 × 400-meter relay team at the 1999 World Championships in Athletics. She was part of the World Championship team twice more, in 2001 and 2005, and helped the United States to silver at the 2002 IAAF World Cup and gold at the 2001 Goodwill Games.
Lynna Irby-Jackson is an American track and field sprinter who competes in the 100m, 200m, and 400m dash events. At the 400m dash, she set an all-time world record at the age of 12 running 54.57 before becoming the fastest American 400m high school runner in the last 20 years. She gained 16 national titles from Jr Olympic and Youth National meets. Irby has won silver medals in the event at both the 2015 World Youth Championships and the 2016 World Junior Championships.
Petros Kyprianou is the current Director of Track & Field and Cross Country at the University of Illinois and the former head coach of the University of Georgia Bulldogs men's and women's track and field teams. Kyprianou was voted the United States Track & Field/CC Coaches Association 2018 Indoor & Outdoor National Coach of the Year following two historic first NCAA team titles for the University of Georgia track and field. Additionally, Kyprianou was the 2017 Outdoor National Women's Coach of the year following a very close NCAA runner up finish to Oregon. The Bulldogs have amassed 12 top 4 NCAA finishes the last five seasons.
The women's 200 metres at the 2017 World Championships in Athletics was held at the London Olympic Stadium on 8 and 10−11 August.
Sada Williams is a Barbadian sprinter competing primarily in the 200 and 400 metres. She won the bronze medal in the 400 m at the 2022 World Championships, becoming the first Barbadian woman ever to win a medal at the World Athletics Championships. Williams took gold in the event at the 2022 Commonwealth Games.
The men's heptathlon at the 2018 IAAF World Indoor Championships took place on 2 and 3 March 2018.
Jasmine Moore is an American athlete. She won the bronze medal at the 2024 Summer Olympics in both the long jump and the triple jump event. In 2022, she became the first American woman to qualify for the World Athletics Championships in both the long jump and the triple jump.
