Orioles optioned LHP Wei-Yin Chen to the Gulf Coast League Orioles.
Wei-Yin Chen got a no-decision despite failing to make it through the fifth inning as the Orioles defeated the Rays 4-2 on Tuesday.
Wei-Yin Chen improved to 13-4 after allowing three runs in 7 1/3 innings Wednesday against the White Sox.
Wei-Yin Chen fired seven innings of one-run ball Friday in a no-decision against the Indians.
Tuesday's game between the Yankees and Orioles has been postponed due to inclement weather in the forecast.
Wei-Yin Chen faltered on Wednesday and took his fourth loss, yielding four runs over five innings to the Blue Jays.
Wei-Yin Chen delivered another impressive outing in Friday's victory over the Mariners, allowing just one run on five hits over 7 1/3 innings of work.
Wei-Yin Chen blanked the Mariners for eight innings Thursday, combining with Darren O'Day on a five-hitter.
Wei-Yin Chen improved his record to 9-3, allowing three runs over 5 2/3 innings as the Orioles won by a 4-3 margin over the Nationals on Thursday.
Wei-Yin Chen earned his eighth win, allowing two runs over six innings as the Orioles wrapped up a 5-2 victory on Thursday.
Wei-Yin Chen allowed five earned runs over 3 1/3 innings in a loss to the Rays on Saturday.
Wei-Yin Chen blanked the Red Sox for seven innings Wednesday, combining with Darren O'Day and Zach Britton on a four-hit shutout.
Wei-Yin Chen pitched well in a no-decision against the Athletics on Friday, surrendering just two runs on five hits over 6 1/3 innings.
Wei-Yin Chen allowed five runs, including three home runs, over five innings in a no-decision against the Brewers on Tuesday.