Dan Haren improved to 4-0 on Sunday as the Angels topped the White Sox 4-2 at U.S. Cellular Field in Chicago.
He joins teammate Jered Weaver as baseball's only four-game winners so far this season.
The right-hander allowed two runs on seven hits over 6 1/3 innings, striking out six and not allowing a walk.
"He's started the series three times and he's set the tone every time," Haren said. "There is a lot of teams with a bunch of good pitchers and we're a few of them. What we hope is that when take the mound our team expects to win. That's how I feel and I feel like when I'm on the mound that the eight other guys with me feel like we're going to win that game."
Haren Beats White Sox For Fourth Win