The men's single sculls event was part of the rowing programme at the 1920 Summer Olympics. The competition, the fifth appearance of the event, was held from 27 to 29 August 1920. Ten rowers, each from a different nation, competed. The event was won by John B. Kelly Sr. of the United States, the nation's second victory in the event (tying Great Britain for most among nations at the time). It was the first of Kelly's three Olympic gold medals; he would also win in the double sculls about an hour later (a double that has never been repeated) as well as in the 1924 double sculls. In the final, Kelly defeated Great Britain's Jack Beresford in "of the greatest sculling races ever contested." Beresford led most of the way, with Kelly passing him late and winning by one second—a very close race i