This was the second time the event was held. Introduced along with the men's 200 metres hurdles in 1900, the men's 400 metres hurdles was the only one of the two new hurdles events in 1900–1904 that would stay on the programme long-term, joining the 110 metres hurdles that had been contested in 1896. The 400 metres version would be held in 1900, 1904, and 1908 before being left off for one Games in 1912; when the Olympics returned after World War I, the men's 400 metres hurdles was back and would continue to be contested at every Games thereafter.[2]
The United States was the only nation competing, making its second appearance.
Competition format
The competition consisted of a single round, with only four hurdlers competing. The hurdles used were the low (2.5 feet high) hurdles typical of the 200 metres hurdles event rather than the 3-foot hurdles standard for the 400 metres hurdles event.[2]
Records
These were the standing world and Olympic records (in seconds) prior to the 1904 Summer Olympics.