The men's 400 metres hurdles was a track & field athletics event at the 1900 Summer Olympics in Paris. This event was held for the first time at the Olympics. The competition took part on July 14 and July 15, 1900. The race was held on a track of 500 metres in circumference. Five athletes from four nations competed in the longest of the three hurdling events. The event was won by Walter Tewksbury of the United States. Henri Tauzin of France earned silver, while George Orton of Canada took bronze.
The men's 400 metre freestyle was one of six swimming events on the swimming at the 1908 Summer Olympics programme. Its distance was the median of the 3 individual freestyle event distances. It was the first time an event over 400 metres was held at the Olympics. The competition was held from Monday July 13, 1908 to Thursday July 16, 1908.
The men's 400 metres event was part of the track and field athletics programme at the 1924 Summer Olympics. This race was depicted in the film Chariots of Fire. The competition was held on Thursday, July 10, 1924, and on Friday, July 11, 1924.
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 0.73 seconds by Wayde van Niekerk of South Africa, who broke the world record and won 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 2017 World Championships in Athletics was held at the London Olympic Stadium on 5, 6, and 8 August. The winning margin was 0.43 seconds.
The men's 200 metres event at the 1970 British Commonwealth Games was held on 21 and 22 July at the Meadowbank Stadium in Edinburgh, Scotland. It was the first time that the metric distance was contested at the Games replacing the 220 yards event.
The men's 400 metres event at the 1970 British Commonwealth Games was held on 22–23 July 1970 at the Meadowbank Stadium in Edinburgh, Scotland. It was the first time that the metric distance was contested at the Games replacing the 440 yards event.
The women's 400 metres event at the 1970 British Commonwealth Games was held on 22 and 23 July at the Meadowbank Stadium in Edinburgh, Scotland. It was the first time that the metric distance was contested at the Games replacing the 440 yards event.
The men's 400 metres hurdles event at the 1970 British Commonwealth Games was held on 18, 20 and 21 July at the Meadowbank Stadium in Edinburgh, Scotland. It was the first time that the metric distance was contested at the Games replacing the 440 yards hurdles.
The men's 4 × 440 yards relay event at the 1966 British Empire and Commonwealth Games was held on 13 August at the Independence Park in Kingston, Jamaica. It was the last time that the imperial distance was contested at the Games later replaced by the 4 × 400 metres relay.
The men's 120 yards hurdles event at the 1966 British Empire and Commonwealth Games was held on 11 August at the Independence Park in Kingston, Jamaica. It was the last time that the imperial distance was contested at the Games later replaced by the 110 metres hurdles.
The men's 220 yards event at the 1966 British Empire and Commonwealth Games was held on 8 and 11 August at the Independence Park in Kingston, Jamaica. It was the last time that the imperial distance was contested at the Games later replaced by the 200 metres.
The women's 220 yards event at the 1966 British Empire and Commonwealth Games was held on 8 and 11 August at the Independence Park in Kingston, Jamaica. It was the last time that the imperial distance was contested at the Games later replaced by the 200 metres.
The women's 440 yards event at the 1966 British Empire and Commonwealth Games was held on 6 and 8 August at the Independence Park in Kingston, Jamaica. It was the first and last time that this imperial distance was contested at the Games for women later replaced by the 400 metres.
The men's 880 yards event at the 1966 British Empire and Commonwealth Games was held on 6 and 8 August at the Independence Park in Kingston, Jamaica. It was the last time that the imperial distance was contested at the Games later being replaced by the 800 metres.
The men's 440 yards hurdles event at the 1966 British Empire and Commonwealth Games was held on 6 and 8 August at the Independence Park in Kingston, Jamaica. It was the last time that the imperial distance was contested at the Games later being replaced by the 400 metres hurdles.
The women's 100 yards event at the 1966 British Empire and Commonwealth Games was held on 6 and 8 August at the Independence Park in Kingston, Jamaica. It was the last time that the imperial distance was contested at the Games later replaced by the 100 metres.
The men's 100 yards event at the 1966 British Empire and Commonwealth Games was held on 5 and 6 August at the Independence Park in Kingston, Jamaica. It was the last time that the imperial distance was contested at the Games later replaced by the 100 metres.
The men's 440 yards event at the 1958 British Empire and Commonwealth Games was held on 17, 22 and 24 July at the Cardiff Arms Park in Cardiff, Wales.
The men's 440 yards hurdles event at the 1958 British Empire and Commonwealth Games was held on 20 and 22 July at the Cardiff Arms Park in Cardiff, Wales.
