In individual sports, Gar Wood (a native Detroiter) won the Harmsworth Trophy for unlimited powerboat racing on the Detroit River in 1931. In the following year, Eddie "the Midnight Express" Tolan, a black sprinter who had graduated from Detroit's Cass Technical High School in 1927, won the 100- and 200-meter races and two gold medals at the 1932 Summer Olympics. Boxer Joe Louis, who came to Detroit when he was 12 years old and started his professional career in the city, won the heavyweight championship of the world in 1937.