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Home/MLB/San Francisco Giants @ Boston Red Sox
MLB · 2026-08-22

San Francisco Giants vs Boston Red Sox

Fenway Park

San Francisco Giants
52-76
VS
Boston Red Sox
69-59
54%
Boston Red Sox win probability · -195
Tale of the tape
46%Win probability54%
0.406Win %0.539
-78Run differential+97
Lean-195 · BetRivers
Boston Red Sox to win
The market (66%) rates this higher than our model (54%) — no real edge, so we pass.

The model lands on Boston Red Sox here, giving them a 54% chance to come out on top against San Francisco Giants. A modest 54% lean — fine as a small play or a parlay leg. Pitching matchup: Patrick Sandoval (4.76 ERA) vs Blade Tidwell (4.33 ERA).

Why we lean this way

  • Form & record: Boston Red Sox sit 69-59 (0.539), San Francisco Giants 52-76 (0.406).
  • Last 10: Boston Red Sox 5-5 (W1), San Francisco Giants 3-7 (L2). Hot streaks move these lines fast.
  • Run differential: Boston Red Sox +97, San Francisco Giants -78 on the year — the most honest measure of how good a team actually is, beyond their record.
  • On the mound: Boston Red Sox hand the ball to Patrick Sandoval; San Francisco Giants counter with Blade Tidwell. Starting pitching swings a baseball game more than any other factor.
  • Home field: worth about +3.5% to Boston Red Sox in our model.

The verdict

Where we land: Boston Red Sox, a slight lean. A 54% edge is worth backing, but variance is real — keep stakes reasonable.

Logged to our public track record and graded after the final. We analyze; we never take wagers. 21+.

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