Chad Qualls worked a scoreless ninth to pick up his fourth save as the Astros defeated the Orioles 3-1 on Thursday. Qualls has been perfect since manager Bo Porter named him the club's official closer on May 16. The save opportunities have been few and far between, but Qualls is two-for-two with four strikeouts, no walks, and no hits in four innings since. Overall, he has a 2.76 ERA and a 1.29 WHIP.