Leo Rivas delivered a walk-off blast in the 13th, lifting Seattle to a 4-2 win and a five-game win streak to pull within one game of Houston in the AL West. The Mariners leaned on a bullpen that bridged 8.1 scoreless innings behind a fatigued starter, with Carlos Vargas, Gabe Speier, Caleb Ferguson, Jose Castillo, Luke Jackson and Emerson Hancock each contributing pivotal frames to reach extra innings.

Seattle finally broke through after a tense, late-innings standoff. Jorge Polanco started the 11th with a leadoff hit, scoring the tying run and setting the stage for a rally that finally culminated in Rivas pulling a hanging slider 361 feet into the right-field stands. The defense sharpened late, Crawford flashing on several diving plays and the infield turning crucial double plays to preserve the advantage until the 13th.

Rivas, recalled when rosters expanded on Sept. 1, has embraced a versatile role, providing eye discipline, baserunning, and defensive flexibility across the infield. With the Mariners desperately needing wins down the stretch, his bunting drill paid off in dramatic style, cementing Seattle’s closing push and yielding another reminder of the depth Seattle is counting on in the final grind of the season.