Athletics starter Brett Anderson hurled six shutout innings, allowing two hits and striking out six in the process. He kept the ball low, worked his off-speed pitches and ensured that the Tigers were kept off the board.
Yoenis Cespedes singled home Coco Crisp in the first inning, and Oakland didn't look back.
Seth Smith added a solo home run in the fifth inning, putting his squad up 2-0.
The Tigers couldn't get anything going at the plate, wasting a solid effort from Anibal Sanchez and the Tigers bullpen. Miguel Cabrera and Prince Fielder combined for just one hit, leaving the Detroit lineup at a loss for power.
Fielder could have produced more, if it wasn't for Crisp's robbery of a Fielder fly ball headed over the fence in the second inning.
In a five-game series, anything can happen. The Athletics are the ultimate underdog, and they're used to filling that role.
Detroit will send Max Scherzer (16-7, 3.74 ERA) to the hill in Game 4, while the Athletics hand the ball to A.J. Griffin (7-1, 3.06 ERA). The game's first pitch is set for 9:30 p.m. ET.