Orioles 4, Mariners 0
SEATTLE -- Wei-Yin Chen threw eight innings of five-hit ball, and Baltimore rode a four-run third inning to a win over Seattle.
Chen (11-3) won his fourth consecutive start and held an opponent without a run for only the second time this season.
Orioles designated hitter Delmon Young provided the big blow, a three-run homer in the third inning. The seldom-used Young, who went 2-for-4, collected his first home run and first multiple-hit game of July.