If you’re Wei-Yin Chen, you’re going to have a tough time winning when the Baltimore Orioles committ three errors in a game. It doesn’t matter how well you pitch. And while he didn’t make it out of the sixth inning yesterday at Fenway Park, he pitched very well. Chen’s line: 5.2 IP, 5 H, 2 R, 2 BB, 7 K.

While the O’s did manage to win a game earlier this week in Washington while committing three errors, you can’t assume that’s going to be the norm.