Seattle Mariners vs Athletics Picks and Prediction for Monday May 25 2026

By: Kim Smith Published 05/25/2026, 12:55 AM ET
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The Seattle Mariners travel to face the Athletics on Monday, May 25, 2026, at Sutter Health Park in Sacramento, California. First pitch is scheduled for 9:40 PM ET with coverage available on MLB.TV. At the time of this writing the odds were not released. Be sure to check out our free MLB picks.

Starting Pitchers Set for AL West Battle

Seattle is expected to send Luis Castillo to the mound for this matchup. Castillo enters with a 1-5 record, a 6.41 ERA, and a 1.55 WHIP across 46.1 innings pitched this season. He has allowed 54 hits and seven home runs while striking out 47 batters and walking 18. The Athletics are projected to counter with Aaron Civale, who owns a 5-1 record alongside a 3.31 ERA and a 1.39 WHIP over 51.2 innings this season. He has surrendered 56 hits and nine home runs while recording 37 strikeouts and issuing 16 walks.

Seattle Looking to Regain Consistency

The Mariners enter this contest with a 25-28 overall record and an 11-13 road mark this season. Seattle recently lost to Kansas City 5-0 after previously recently winning over the Royals 2-0. Before that, the Mariners recently won over Chicago by scores of 5-4 and 6-1 while recently losing 2-1 in the middle game of that series. Seattle has alternated wins and losses frequently during this recent stretch and continues searching for stronger offensive consistency.

Seattle is batting .223 as a team while scoring 212 runs with 387 hits and 59 home runs this season. The Mariners own a .314 on-base percentage and a .371 slugging percentage entering this matchup. On the mound, Seattle has posted a solid 3.57 ERA and a 1.22 WHIP while allowing opponents to hit .249 against them. The pitching staff has also recorded 457 strikeouts while issuing only 136 walks this year.

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One major strength for Seattle has been overall pitching control. The Mariners have issued only 136 walks this season while carrying a respectable 3.57 ERA. However, the offense has remained inconsistent with the club batting only .223 overall entering this matchup.

Athletics Bringing Momentum Back Home

The Athletics come into this game with a 26-26 overall record and a 10-12 home record this season. The Athletics recently lost to San Diego by scores of 2-0 and 7-3 after previously recently winning over Los Angeles in three straight games by scores of 14-6, 6-5 in 10 innings, and 3-2 in 10 innings. The Athletics have shown the ability to generate offense in bunches, particularly during the recent series against the Angels.

The Athletics are batting .248 as a team while scoring 227 runs with 438 hits and 54 home runs this season. The club owns a .329 on-base percentage and a .392 slugging percentage entering this matchup. On the pitching side, the Athletics carry a 4.29 ERA and a 1.40 WHIP while allowing opponents to hit .250 against them. The staff has also recorded 411 strikeouts while issuing 210 walks.

One advantage for the Athletics entering this contest is offensive production. The club owns the better batting average, on-base percentage, slugging percentage, and run total compared to Seattle entering this matchup. The Athletics also showed recent offensive upside during the 14-run outburst against Los Angeles earlier in the week.

Seattle Mariners vs Athletics Picks and Prediction

Seattle Mariners vs Athletics Pick

  • Pick: Athletics Moneyline

The Athletics enter this matchup with the stronger offensive profile and the advantage in the starting pitching matchup based on the numbers provided. Seattle has struggled offensively throughout the season with a .223 team batting average, while the Athletics have consistently generated more hits and runs overall. With the Athletics also holding the edge in recent offensive performances and Seattle continuing to search for consistency at the plate, the home side looks like the stronger play here.

Seattle Mariners vs Athletics Total Pick

  • Pick: Over 8

I would lean toward the over in this matchup because both starting pitchers enter with elevated WHIP numbers, and the Athletics have shown strong offensive upside recently. Seattle’s starting pitcher also carries a 6.41 ERA into this contest, while the Athletics have scored 14, 6, and 7 runs in three of their last five games. Seattle still brings some power into the matchup with 59 home runs this season, creating the possibility for scoring from both teams.

Final Score Prediction: Athletics 6 – Seattle Mariners 5

This prediction was written before the completion of game play on Sunday.

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