Harry Lee Reynolds Jr., commonly known as Butch Reynolds, is an American former track and field athlete who competed in the 400 meter dash. He held the world record for the event for 11 years 9 days with his personal best time of 43.29 seconds set in 1988. That year, he was the silver medalist at the 1988 Seoul Olympics and a relay gold medalist. He was falsely accused and banned for drug use for two years by the IAAF; until The United States Supreme Court ruled in favor of Reynolds due to an apparent drug testing procedural flaw. Reynolds was awarded $27.3 million dollars due to the false accusation damages, but he never received the money.
LaShawn Merritt is an American track and field athlete who competes in sprinting events, specializing in the 400 metres. He is a former Olympic champion over the distance and his personal best of 43.65 seconds makes him the ninth fastest of all time.
The men's 400 metres event at the 2016 Summer Olympics took place between 12 and 14 August at the Olympic Stadium. Fifty-three athletes from 35 nations competed. The event was won by Wayde van Niekerk of South Africa, the nation's second gold medal in the men's 400 metres. Kirani James of Grenada and LaShawn Merritt of the United States became the sixth and seventh men to win two medals in the event, but Michael Johnson remained the only man with two gold medals.
The men's 400 metres at the 2015 World Championships in Athletics was held at the Beijing National Stadium on 23, 24 and 26 August.
Michael Arthur Norman Jr. is an American sprinter. He holds the world best time in the indoor 400 meters at 44.52 seconds. Outdoors, his 43.45, set at the 2019 Mt. SAC Relays is tied as the #4 on the all time list. In 2016, he became the world junior champion in both the 200 meters and 4×100 meter relay. In 2022, he became the world champion in both the 400 meters and 4x400 meter relay.
The men's 200 metres at the 2017 World Championships in Athletics was held at the London Olympic Stadium on 7, 9, and 10 August.
The men's 400 metres at the 2017 World Championships in Athletics was held at the London Olympic Stadium on 5, 6, and 8 August.
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.
The men's 400 metres event at the 2020 Summer Olympics took place between 1 and 5 August 2021 at the Olympic Stadium. Approximately fifty athletes were expected to compete; the exact number was dependent on how many nations use universality places to enter athletes in addition to the 48 qualifying through time or ranking. 48 athletes from 33 nations competed. The event was won by Steven Gardiner of the Bahamas, with Anthony Zambrano of Colombia taking silver. Those were the first medals in the men's 400 metres for each of those two nations. Kirani James of Grenada won his third consecutive medal in the event with his bronze, making him the first man to earn three medals in the 400 metres.
The men's 400 metres hurdles event at the 2020 Summer Olympics took place between 30 July and 3 August 2021 at the Olympic Stadium. 36 athletes from 26 nations competed.
The men's 400 metres at the 2019 World Athletics Championships was held at the Khalifa International Stadium in Doha on 1, 2 and 4 October 2019.
The men's 200 metres at the 2022 World Athletics Championships was held at the Hayward Field in Eugene from 18 to 21 July 2022.
The men's 800 metres at the 2022 World Athletics Championships was held at the Hayward Field in Eugene from 20 to 23 July 2022.
The men's 400 metres hurdles at the 2022 World Athletics Championships was held at the Hayward Field in Eugene from 16 to 19 July 2022.
The women's 100 metres at the 2022 World Athletics Championships was held at the Hayward Field in Eugene, Oregon, U.S. on 16 and 17 July 2022.
The women's 200 metres at the 2022 World Athletics Championships was held at the Hayward Field in Eugene, Oregon, U.S. from 18 to 21 July 2022.
The women's 400 metres at the 2022 World Athletics Championships was held at the Hayward Field in Eugene, Oregon, U.S. from 17 to 22 July 2022.
The women's 800 metres at the 2022 World Athletics Championships was held at the Hayward Field in Eugene from 21 to 24 July 2022.
The women's 400 metres hurdles at the 2022 World Athletics Championships was held at the Hayward Field in Eugene from 19 to 22 July 2022. It was won by Sydney McLaughlin in a world record time of 50.68 seconds.
The men's 400 metres at the 2023 World Athletics Championships was held at the National Athletics Centre in Budapest, Hungary from 20 to 24 August 2023.
