The Milwaukee Mile is the oldest motor racing track in the world, with racing being held there since 1903. It was not purposely built for motor racing, it started as a one-mile (1.6 km) horse racing track in the 19th Century.
From 1903–1914, a one-mile dirt oval track was run on Brunots Island, just south of Pittsburgh on the Ohio River. Louis Chevrolet won the AAA Champion car in 1905. On September 10, 1907, Rex Reinersten was fatally injured in a crash here. In 1916, Chevrolet won the first Universal Films Trophy at the mile and an eighth Uniontown Speedway board track,. south of Pittsburgh in Hopwood, PA.