These are the official results of the men's 400 metres event at the 1992 Summer Olympics in Barcelona, Spain. There were a total number of 69 participating athletes, with nine qualifying heats.
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In heat 2 of the semi-final round, Quincy Watts ran the number 2 time in history, 43.71, only surpassed by the world record held by Butch Reynolds who had battled a drug suspension in the United States Olympic Trials. At those trials, Danny Everett had run the previous number time in history 43.81, while Reynolds did not qualify. In heat 2, Everett suffered a foot injury and hobbled home. In the final, Watts again improved the number 2 time in history with his 43.50 win.
Records
These were the standing world and Olympic records (in seconds) prior to the 1992 Summer Olympics.
Quincy Watts set two new Olympic records. He first ran 43.71 in the semi-finals and improved his mark in the final to 43.50.