SEATTLE (AP) - Wei-Yin Chen allowed five hits over eight innings and Delmon Young hit a three-run homer to give the Baltimore Orioles a 4-0 victory over the Seattle Mariners on Thursday night.
Chen (11-3), who has won his past four starts, scattered five singles, walked one and struck out three. His 11 wins ties him for third-most in American League. On the road, Chen is 6-1 with a 3.94 ERA in nine starts.
Darren O'Day finished with a routine ninth inning.
It was Baltimore's eighth shutout. The Mariners have been shut out 12 times, tying Tampa Bay for the most in the American League.
The Orioles began their four-run third with singles by John Flaherty, Caleb Joseph and Nick Markakis.
Markakis' single drove in one run and on the next pitch Young hit his fourth homer. It was the Orioles' 123rd of the season, tying Toronto for the most in the majors.