"When I'm on, I'm going to get a lot of ground balls, and with this defense behind me, that's a good thing," Pelfrey said.
Miguel Cabrera scored on J.D. Martinez's two-out, first-inning double to left-center, barely beating an offline relay. Cabrera had reached on a fielder's choice.
The second run of the game was also courtesy of Cabrera, who launched a homer into the St. Louis bullpen beyond the right-center-field fence with two outs in the third inning.