Jason Davis (2-0) pitched two scoreless innings for Seattle.
Daisuke Matsuzaka allowed one run and three hits in eight innings for Boston. He walked one and struck out eight, including Jamie Burke with a runner on second to end the eighth. Matsuzaka has allowed six runs in five starts this month.
Orioles 4, Yankees 0
At Baltimore, Roger Clemens was denied his 350th victory by Baltimore, who used a four-run sixth inning and an overpowering pitching performance by Erik Bedard to beat New York.
Clemens (1-3) was trying to become the eighth major league pitcher with 350 career wins. He blanked Baltimore through five innings, but his bid fell apart under a barrage of hits in the sixth, including a three-run homer by Aubrey Huff.
Clemens' run of 200 consecutive starts with at least one strikeout also ended. It was the third-longest run by an active major leaguer, behind Pedro Martinez (293) and Javier Vazquez (237).
The right-hander allowed four runs, seven hits and three walks in six innings.
Clemens was outdone by Bedard (6-4), who gave up two hits and a walk in seven brilliant innings. The left-hander struck out eight and did not allow a runner past first base.
Other American League scores on Wednesday:
White Sox 5, Devil Rays 3
Athletics 13, Indians 7
Blue Jays 5, Twins 4
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