Backed by six scoreless innings from the bullpen, the Orioles snapped a four-game losing streak and stayed one-half game behind Detroit for the AL's second Wild Card spot. It marked just their third victory in their last nine home games.
"Momentum is your next game, it really is. I'm glad our guys feel good about themselves for one night, they've been frustrated," Showalter said. "They've earned the right to play these meaningful games and I'm happy for them. What it means, like I said, momentum is usually your next starting pitcher."
Trumbo's blast, which came off Arizona reliever Matt Koch, led off the bottom of the 12th and was his 44th homer on the year.