Reds bench candidate Christian Walker then smoked an RBI triple to the wall in left field that scored Alcantara for the go-ahead run.
San Diego had a 3-1 lead in the fourth inning when Cincinnati picked up three runs. Padres starter Clayton Richard gave up a two-run homer to left field by Zack Cozart. Later in the inning with two outs against reliever Carlos Fisher, Stuart Turner hit a triple and scored on Billy Hamilton's RBI single.