At Anaheim, California, Seattle's Jarrod Washburn beat his former Angels teammates for the second time this year, and Raul Ibanez homered.
Coming off his worst start of the season, Washburn (4-7) went six innings and held the Los Angeles to one run. He scattered six hits, walked one and struck out four.
The Mariners' left-hander had given up seven runs in 4 1-3 innings of a 9-4 loss to Kansas City last Sunday, his shortest outing of the year.
J.J. Putz pitched the ninth for his 10th save in 11 chances.
Kelvim Escobar (5-7) lost his fifth start in a row, again getting little offensive support.
Twins 7, Orioles 5, 12 innings
At Minneapolis, Justin Morneau's second homer of the game, a two-run walkoff shot with two outs in the 12th inning gave Minnesota a win over Baltimore.
Morneau also hit a three-run homer, giving him five RBIs for the game. His 437-foot off Bruce Chen (0-6) came on a 2-0 pitch after Nick Punto singled with two outs.
It was Morneau's third multihomer game this season.
Joe Nathan (4-0) pitched two innings for the victory.
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