Tony Kemp led off the bottom of the 13th with a triple and eventually came around to score to lift Houston to a 3-2 win over Baltimore late Tuesday.
Reliever Dylan Bundy (0-1, 5.09 ERA) intentionally walked the next two batters to set up force plays at each base. Carlos Correa followed with a single to center to score Kemp with the winning run.
Manny Machado and Pedro Alvarez hit solo homers for the Orioles (26-17), who fall a game behind Boston in the American League East.
Chris Tillman got a no-decision in a solid start for Baltimore, going seven innings, allowing two runs on three hits, striking out five and walking three.