Michael Lorenzen pitched two scoreless innings for the victory.
Cincinnati had a 3-2 lead with two outs in the top of the eighth when Josh Harrison slugged a game-tying solo homer to left field on a 2-2 slider from reliever Drew Storen. Harrison's first homer of the night -- which led off the sixth inning against Reds starter Amir Garrett -- gave Pittsburgh a 2-0 lead on two hits. In the bottom of the sixth against Pirates starter Gerrit Cole, Adam Duvall's three-run homer to left field propelled the Reds into a one-run lead.