Seattle Mariners at Cleveland Guardians: Final Score & Recap

The Seattle Mariners defeated the Cleveland Guardians 3-1 at Progressive Field on June 26, 2026, holding a team that entered as 55-percent home favorites according to the DiamondIQ model's estimate down to a single run across nine innings. Seattle scored in the third, seventh, and eighth frames while Cleveland managed its only run in the opening inning, and the Mariners finished with six hits against four for the home side.

The decisive sequence arrived in the seventh inning, where J.P. Crawford's single off Tim Herrin shifted win probability 14.0 percent toward Seattle, only to see Cleveland partially answer when Josh Naylor grounded into a double play on the same at-bat chain, swinging the needle 15.0 percent back toward the Guardians. That exchange encapsulated the evening's tension, though the Mariners added an eighth-inning insurer when Julio Rodríguez singled off Daniel Espino for a 12.3-percent probability swing. In the bottom of the ninth, Kahlil Watson grounded out to end the game against Andrés Muñoz, a play that carried a 14.4-percent win-probability shift as the final threat dissolved.

Colt Emerson was Seattle's most impactful offensive contributor, finishing with a WPA of plus-16.4 percent and an RE24 of plus-1.2, anchored by his third-inning home run off Joey Cantillo that generated a 10.6-percent swing and put the Mariners on the board. On the pitching side, Luis Castillo led all pitchers with a WPA of plus-23.3 percent, outpacing Cantillo's plus-19.0 percent mark despite the Guardian starter's effort, and Gabe Speier contributed plus-13.3 percent in relief. Watson added plus-11.7 percent WPA in a supporting role, while Crawford's plus-6.2 percent reflected his clutch contribution in the pivotal seventh.