Seattle Mariners vs Athletics MLB Predictions – 25.05.26

Who will win today? Seattle Mariners vs Athletics MLB Preview

The Athletics will win today because L. Castillo is currently getting shelled, entering this contest with a ballooning 6.41 ERA that suggests he is struggling to find the bottom of the zone. While the Seattle Mariners are fading after a tough loss to Kansas City, the Oakland hitters are seeing beachballs at the plate and should take advantage of the favorable hitting conditions at Sutter Health Park.

The Starter Showdown: L. Castillo vs A. Civale

L. Castillo is in a massive funk, posting a 6.41 ERA and allowing an alarming amount of hard contact in his recent outings. His fastball velocity is sitting fine, but his location has been erratic, leading to high-leverage disasters when runners get on base.

On the bump for the Athletics, A. Civale has been much more reliable, sporting a solid 3.31 ERA. He has been lights out when working ahead in the count, using his breaking stuff to keep hitters off-balance and inducing weak fly balls.

Offensive Trends & Lineup Depth

The Athletics are coming off a strong 5-2 victory over San Diego, showing they can win with both small ball and timely power. Their middle-of-the-order bats are locked in, consistently producing high exit velocities against struggling right-handers like Castillo.

The Seattle Mariners are reeling after a 6-8 loss, and their 25-29 record reflects a lineup that lacks the depth to keep up in a slugfest. With the total set at 10.5, expect plenty of fireworks, but Seattle’s bullpen may struggle to bridge the gap if their starter exits early.

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Our Final Verdict

The Athletics have the clear pitching advantage with A. Civale and his 3.31 ERA facing a lineup that often swings and misses at junk in the dirt. Given that L. Castillo is currently a pitcher to fade, Oakland should provide enough run support to clear the 10.5 total easily.

Pick to Win: Athletics

Total Runs (Over/Under): over (Line: 10.5)