OAKLAND -- Matt Chapman hit a tiebreaking three-run homer off Jeremy Hellickson in a five-run fourth inning, and the Oakland Athletics overcame an early two-run deficit to beat the Baltimore Orioles 9-3 on Sunday.
Matt Joyce and Matt Olson also homered as the A's gained a four-game split.
In his worst outing since Baltimore acquired him from Philadelphia last month, Hellickson (1-2) gave up six runs - twice as many as he allowed in his previous two starts. He allowed five hits in five-plus innings.