Seattle Mariners at Houston Astros: Final Score & Recap

The Houston Astros walked off the Seattle Mariners 4-3 in ten innings on May 13, 2026, at Daikin Park, with Zach Cole delivering the decisive blow. The DiamondIQ model entered the game giving Houston a 45 percent chance of winning at home, a figure that climbed to 100 percent by the final out. Seattle drew first blood with a run in the first inning, and the Mariners briefly threatened to steal the game in the ninth when Julio Rodríguez drew a walk off Bryan King that swung win probability 36.1 percent in Seattle's favor, representing the single largest probability shift of the night. That momentum evaporated almost immediately when Josh Naylor grounded out to King in the same frame, a sequence that swung 16.8 percent back toward Houston and left the Mariners unable to convert.

Houston answered in the bottom of the tenth when Zach Cole singled off Alex Hoppe to plate the winning run, a hit that shifted win probability 35.9 percent in the Astros' favor and capped a night in which Cole finished as the game's most impactful offensive performer at plus 46.2 percent WPA and plus 2.3 RE24. Earlier, Jose Altuve had drawn a key walk off Cooper Criswell in the sixth inning during a two-run Houston frame that gave the Astros the lead for good, shifting probability 16.3 percent their way. Brice Matthews also factored in via a fielder's choice off Eduard Bazardo in the eighth that added 13.8 percent to Houston's win probability, finishing the game at plus 24.3 percent WPA.

On the mound, Enyel De Los Santos led all pitchers with plus 12.4 percent WPA, followed by Bryce Miller at plus 9.5 percent and Steven Okert at plus 8.9 percent. Houston's final line of four runs on twelve hits to Seattle's eight reflected a night where the Astros' offense consistently found ways to extend and capitalize on opportunities, while the Mariners, despite generating late-game leverage, could not push a decisive run across against a bullpen that ultimately held firm.