The Seattle Mariners defeated the Houston Astros 6-1 at T-Mobile Park on April 12, 2026, in a game that was never truly in doubt after the early innings. Seattle scored in each of the first three frames and added two more in the sixth, gradually pushing the DiamondIQ model's estimate of a home win from a pre-game 54 percent all the way to 100 percent by the final out. Houston managed just five hits and never found a way to string together a meaningful threat against a Mariners pitching staff that was dominant throughout.
The pivotal stretch of the game came in the second and third innings, where Mariners hitters steadily chipped away at Astros starter Jayden Murray. A Julio Rodríguez walk in the second inning shifted win probability 6.3 percent in Seattle's favor, and in the third, a Luke Raley double added another 6.7 percent before a Cole Young walk extended the damage with a 6.0 percent swing. Those incremental blows built a cushion that Houston could never overcome. The Astros' best chance to claw back came in the top of the sixth, but Isaac Paredes grounded into a double play off Logan Gilbert, a single play that swung win probability 10.1 percent against Houston and effectively ended the contest as a competitive game. Raley then answered immediately with a triple in the bottom half that pushed the lead further, adding 7.4 percent to Seattle's win probability.
Logan Gilbert was the game's dominant individual performer, finishing with a WPA of plus-18.3 percent to lead all pitchers, and Luke Raley was the offensive catalyst with a team-best plus-16.3 percent WPA and a RE24 of plus-2.4, driven by his double and triple in back-to-back innings. Cole Young contributed a plus-8.5 percent WPA and Julio Rodríguez added plus-5.6 percent, giving Seattle a balanced attack that the DiamondIQ model favored slightly entering the day and emphatically validated by game's end.
Analysis generated by DiamondIQ's model.