Bob Melvin summoned Ike Davis to the mound in a blowout loss to the Los Angeles Angels on Tuesday night and the first baseman delivered with a perfect eighth inning.
The Oakland Athletics suffered a 14-1 loss.
"We obviously didn't play a clean game," Melvin said. "We've been on the other side of blowouts this year, and it doesn't feel that great when you're on the side we were tonight. It was just a bad game all the way around. At least we got a little levity at the end there with Ike."
Davis, who had a 2.25 ERA at Arizona State, retired Collin Cowgill, C.J. Cron and Chris Iannetta on ground balls while throwing just nine pitches.
It was the first time the A's had a position player pitch since Frank Menechino on July 18, 2000, against the Colorado Rockies at Coors Field.
"It was interesting, for sure," Davis said. "I'm just glad I threw strikes and didn't have to throw too many pitches. I miss that part of the game, and I've always wanted to get back up there and see what I could do and if I could get outs. I was a little nervous. I didn't want to walk the house and look like a clown out there."