Harroun's race wins included: a 1910 100-mile race at the Atlanta Motordrome; the 1910 200-mile Wheeler-Schebler Trophy Race (at the Indianapolis Motor Speedway); the May 1910, 50-mile Remy Grand Brassard Race (also at IMS); three races at Churchill Downs (home of the Kentucky Derby); three races at the original Latonia Race Track; and races at tracks in New Orleans, Los Angeles, Long Island and Memphis. He is best known for winning the first Indianapolis 500, driving a Marmon.