1896 Summer Olympics
For Alfréd Hajós of Hungary, being on the same day meant he could only compete in two of the events.  He won the two events in which he swam, the 100 and 1200 meter freestyle. Hajós later became one of only two Olympians to win a medal in both the athletic and artistic competitions, when he won a silver medal for architecture in 1924. The 500 meter freestyle was won by Austrian swimmer Paul Neumann, who defeated his opponents by more than a minute and a half.