With that, the Angels took two of three from the first-place Astros to cut their American League West deficit to 4 1/2 games.
Aybar led off the bottom of the 13th with a single up the middle against lefty Joe Thatcher, then moved to second on a sacrifice bunt by Daniel Robertson and went to third on a groundout to the right side by Efren Navarro. Qualls, a right-hander, then walked Chris Iannetta and served up the game-winning bloop single to Featherston.
The Astros committed three outs on the bases in the ninth and 10th innings.