Alvarez and Astros Shock Mariners in Ninth With Walk-Off Win. Baseball, Playoff Games, American League, Houston Astros, Minute Maid Park (Houston, Tex), Seattle Mariners, Baker, Dusty, Gurriel, Yulieski (1984- ), Rodriguez, Julio (2000- ), Servais, Scott (1967- ), Verlander, Justin, Houston (Tex)