Yordan Alvarez hit a walk-off RBI single in the 10th inning as the Astros beat the Mariners 3-2 in Houston. Alvarez had gone oh-for-4 at the plate before delivering the game-winning hit for Houston. Hector Neris earned his fourth win in relief for the Astros, who improved to 67-and-36. Houston got the series win after winning three of four at home. The Astros host the Red Sox tonight and send right-hander Luis Garcia to the hill.