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Seattle Mariners vs Boston Red Sox — 2026-08-31

6:45 PM ETFenway ParkSP: George Kirby vs Payton TolleMLB

Model prediction

Seattle Mariners
48%
Boston Red Sox
52%
Projected
Mariners 4.5 - 4.4 Sox

What our model sees

Our MLB model rates Boston Red Sox as the more likely winner at 52%. The driver is a -9-point Elo gap (1482 vs 1491) reflecting roster strength, recent results, and quality-of-opposition adjustments. Seattle Mariners would need above-baseline variance to flip the script. This page auto-updates with the final score and our recap once the game ends.

Recent form (last 10)

Seattle Mariners
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Boston Red Sox
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