BALTIMORE — The Orioles have been getting outstanding performances from their starting pitchers over the last two weeks, and it was Wei-Yin Chen's turn Wednesday.
Baltimore's left-hander hurled seven scoreless innings and set a season high with seven strikeouts in the Orioles' 6-0 victory over Boston in front of 25,886 at Camden Yards.
"Wei-Yin was really good," O's manager Buck Showalter said. "He was crisp. He had some depth to his breaking ball."
Chen improved to 7-2 and extended an impressive run for Orioles starters. They've allowed two earned runs or less in 10 of the past 13 games, good for a combined 1.39 ERA.
Five of Chen's strikeouts came in the first three innings. And once the Red Sox managed to make contact, his defense backed him up.
The Orioles turned three double plays — they lead the majors with 77 — and got Chen out of the fifth, sixth, and seventh innings with a trio of 4-6-3 specials.
The last of those came just before a heavy storm and a 1-hour, 38-minute rain delay. Darren O'Day and Zach Britton finished the shutout for Baltimore, which evened its season series against the Sox at 5-5.
Meanwhile, Rubby De La Rosa allowed four runs and seven hits in 5 2-3 innings. He struck out seven, but the Orioles (33-31) got to him early and snapped out of their offensive funk.
Chris Davis homered and drove in two runs, and Adam Jones added an RBI double in the win.
Baltimore blanked the BoSox 4-0 on Monday behind Bud Norris' eight scoreless innings, but lost 1-0 on Tuesday despite six one-run innings from Chris Tillman. Chen made sure the Orioles clinched the series with first-place Toronto coming to town for four games.
And he did it in shutout fashion.
Catcher Nick Hundley's second single of the night came with two outs in the fourth, and it drove in another insurance run for Chen. Baltimore added two runs in the eighth on bases loaded walks from Red Sox reliever Chris Capuano.
Boston (29-36) lost for the seventh time in its last nine games.
Chen retired the first 11 batters before Dustin Pedroia laced a base hit down the right-field line. Pedroia tested Nick Markakis' arm in trying for a double, but Markakis fired to shortstop J.J. Hardy for the putout.
NOTES: The Orioles' scheduled starters against the Blue Jays are Kevin Gausman (1-1), Ubaldo Jimenez (2-7), Norris (5-5), and Tillman (5-3). Toronto goes with Mark Buehrle (10-2), Drew Hutchison (4-4), R.A. Dickey (6-4), and J.A. Happ (5-3). … Baltimore improved to 37-28 against Boston since the start of the 2011 season, the most wins by an AL East club against the Red Sox … Markakis needs one hit to tie Brian Roberts (1,452) for seventh on the Orioles' all-time list. Next up is Ken Singleton with 1,455 career hits for Baltimore. … Manny Machado went hitless in three at-bats and is 0 for his last 18.