A green-white-checkered finish in the Nationwide Series race was set up when a multi-car crash occurred in the closing laps. Keselowski was holding the lead for the final restart, but Edwards bumped him out of the way after making several unsuccessful attempts to pass him.
The finish added further fuel to a feud between the two drivers. They have had previous on-track encounters, most notably when Edwards intentionally bumped Keselowski from behind and sent him flying into a wall of the Sprint Cup Series race at Atlanta.
The win was the second Nationwide victory of the year for Edwards and his third at Gateway.
Reed Sorenson ended up in second, while Trevor Bayne, Paul Menard and Steve Wallace rounded out the Top 5.
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