The men's 400 metres at the 2004 Summer Olympics as part of the athletics program were held at the Athens Olympic Stadium from August 20 to 23. Sixty-two athletes from 48 nations competed. The event was won by Jeremy Wariner of the United States, the sixth in what would ultimately be 7 consecutive American victories stretching from 1984 to 2008 and the 18th overall title in the event by the United States. The United States swept the podium for the 4th time in the event.
The men's 60 metres at the 2010 IAAF World Indoor Championships was held at the ASPIRE Dome on 12 and 13 March.
The men's 60 metres hurdles competition at the 2010 IAAF World Indoor Championships was held at the ASPIRE Dome on 12 and 14 March.
The men's 110 metres hurdles competition at the 2012 Summer Olympics in London, United Kingdom was held at the Olympic Stadium on 7–8 August. Fifty-three athletes from 33 nations competed. The event was won by Aries Merritt of the United States, the nation's first championship in the event since 1996 and 19th overall. Hansle Parchment's bronze was Jamaica's first medal in the men's high hurdles.
The men's 100 metres at the 2011 World Championships in Athletics was held at the Daegu Stadium on August 27 and August 28. The event was won by Yohan Blake of Jamaica, who became the youngest ever world champion in the 100 metres at 21 years, 245 days. The highly favored defending champion and world record holder Usain Bolt was disqualified from the final for making a false start. Seventy four athletes started the competition, with 61 nations being represented. It was the first global final to be held following the introduction of the no-false start rule.
The men's 400 metres at the 2012 IAAF World Indoor Championships took place March 9 and 10 at the Ataköy Athletics Arena. The final was won by Costa Rican Nery Brenes in a time of 45.11.
The men's 110 metre hurdles at the 2004 Summer Olympics as part of the athletics program were held at the Athens Olympic Stadium from August 24 to 27. Forty-seven athletes from 34 nations competed. The event was won by Liu Xiang of China, the nation's first medal in the event. Terrence Trammell and Anier García became the 11th and 12th men to win multiple medals in the 110 metres hurdles.
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 60 metres at the 2016 IAAF World Indoor Championships took place on March 18, 2016.
The women's 60 metres at the 2016 IAAF World Indoor Championships took place on March 19, 2016.
The women's 400 metres at the 2016 IAAF World Indoor Championships took place on March 18 and 19, 2016.
The women's 800 metres at the 2016 IAAF World Indoor Championships took place on March 19 and 20, 2016.
The men's 1500 metres at the 2016 IAAF World Indoor Championships took place on March 18 and 20, 2016.
The women's 1500 metres at the 2016 IAAF World Indoor Championships took place on March 18 and 19, 2016.
The men's 3000 metres at the 2016 IAAF World Indoor Championships took place on March 18 and 20, 2016.
The men's 60 metres hurdles at the 2016 IAAF World Indoor Championships took place on March 19 and 20, 2016.
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 men's 110 metres hurdles at the 2017 World Championships in Athletics was held at the London Olympic Stadium on 6−7 August.
The men's 400 metres at the 2018 IAAF World Indoor Championships took place on 2 and 3 March 2018.
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.
