On July 13, 2015Todd Frazier wins the annual Home Run Derby in front of a home crowd at Great American Ball Park, edging out rookie Joc Pederson, 15-14, in the final round. For the first time, the competition is staged with a time limit for batters, and Frazier hits the homer that ties him with Pederson with seconds to go before launching the clincher.
Source
Baseball Reference July 13