MLB Recap · March 20, 2026

Seattle Mariners at Cleveland Guardians: Final Score & Recap

SEA20
Final
CLE8

Line Score

Team123456789RHE
SEA010521200020261
CLE220000301891

The Story

The Seattle Mariners dismantled the Cleveland Guardians 20-8 at Goodyear Ballpark on March 20, 2026, in a game that was effectively decided in the second inning. The DiamondIQ model entered the contest giving Cleveland a 67 percent chance of winning at home, but that figure collapsed to zero by the final out, reflecting one of the most lopsided offensive performances of the spring.

The second inning was the turning point in every measurable sense. Seattle sent a wave of batters to the plate and scored 10 runs in the frame, while Cleveland managed only two runs in response and could not claw back into the game. The single most impactful moment, from a win-probability standpoint, came on a Brayan Rocchio flyout in the bottom of the second off Gabe Mosser, which swung the DiamondIQ model's estimate by negative 16.0 percent against Cleveland, extinguishing a potential rally. On the offensive side, Leo Rivas reached via a key strikeout situation that shifted the model 15.9 percent in Seattle's favor, while Dominic Canzone followed with a home run off Tyler Thornton that added another 10.1 percent. Brendan Donovan's double off Logan Allen contributed 7.9 percent to Seattle's win probability, and Cole Young added a home run off Allen for another 4.6 percent swing in the Mariners' favor.

Individually, Rivas finished as Seattle's top performer by WPA at plus-16.6 percent with a RE24 of plus-0.4, while Canzone posted a plus-10.7 percent WPA and led the group with a RE24 of plus-3.3, reflecting his direct run-production impact. Donovan rounded out the top three at plus-8.4 percent WPA and a RE24 of plus-2.6. On the mound, Mosser was Seattle's standout reliever, generating plus-8.8 percent in win probability added. Cleveland finished with just 9 hits against Seattle's 26, and the Guardians never found sustained answers for a Mariners lineup that scored across six of nine innings.

Analysis generated by DiamondIQ's model.

Win Probability

755025SEA bats firstFinalCLE win %SEA win %
DiamondIQ model home win probability across the game (pre-game 66.6% → final 0%).

Biggest Plays by Win-Probability Added

Brayan Rocchio Flyout
Bot 2nd · off Gabe Mosser
-16.0%
Leo Rivas Strikeout
Top 2nd · off Tyler Thornton
+15.9%
Dominic Canzone Home Run
Top 2nd · off Tyler Thornton
+10.1%
Brendan Donovan Double
Top 2nd · off Logan Allen
+7.9%
Cole Young Home Run
Top 2nd · off Logan Allen
+4.6%

Top Batters by WPA

Leo Rivas+16.6%+0.4 RE24
Dominic Canzone+10.7%+3.3 RE24
Brendan Donovan+8.4%+2.6 RE24

Top Pitchers by WPA

Full box score, pitch data, and the play-by-play timeline
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