Does Leo Rivas’ Spring Power Surge Portend Hidden Mariners Threat?

A 464-foot moonshot from Brennen Davis on Sunday afternoon may not have been all that surprising to those who have kept track of his spring superheater, but a 441-footer from the 5-7, 150-pound Leo Rivas - accounting for the other two of Seattle’s runs during the team’s 6-3 loss to the Brewers - probably turned a few heads in surprise.

If the Mariners’ 2026 season goes according to plan, they’re going to have situations like they did in the bottom of the seventh of Game 5 of the 2025 ALDS, when they need a pinch-hitter to come through in a winner-take-all playoff game.

That was when Leo Rivas shined, swatting a game-tying single in what ended up a 15-inning marathon memorably walked off by Jorge Polanco. Rivas, whose greatest strength that year was an ability to take a free pass (his 18% walk rate was the third best of anyone with 100 or more plate appearances last year, behind only Aaron Judge and Dylan Beavers), jumped on an 0-1 changeup out over the plate for the hard-sought hit.