First races in Omaha speedway begin in July 1915. Omaha speedway also attracted drivers such as Ralph DePalma, the winner of the 1915 Indianapolis 500, and future World war I and World War II flying ace Eddie Rickenbacker. The track also attracted some of the best riders of the day, including Omahans Otto Ramer and LeRoy Roland. In the 100-mile feature, Ray Weishaar of Wichita, Kansas.