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Home/MLB/Arizona Diamondbacks @ Boston Red Sox
MLB · 2026-08-17

Arizona Diamondbacks vs Boston Red Sox

Fenway Park

Arizona Diamondbacks
66-59
VS
Boston Red Sox
66-58
53%
Boston Red Sox win probability · -138
Tale of the tape
47%Win probability53%
0.528Win %0.532
+18Run differential+81
Toss-up-138 · FanDuel
Boston Red Sox to win
The market (58%) rates this higher than our model (53%) — no real edge, so we pass.

Our read leans Boston Red Sox over Arizona Diamondbacks — a 53% win probability once everything is weighed. Essentially a coin flip at 53% — entertainment only, not a spot to press.

Why we lean this way

  • Form & record: Boston Red Sox sit 66-58 (0.532), Arizona Diamondbacks 66-59 (0.528).
  • Last 10: Boston Red Sox 3-7 (L1), Arizona Diamondbacks 5-5 (L1). Hot streaks move these lines fast.
  • Run differential: Boston Red Sox +81, Arizona Diamondbacks +18 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 TBD; Arizona Diamondbacks counter with Mitch Bratt. 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

The play we like: Boston Red Sox. It is a near coin-flip at 53% — good value, not a lock. Bet what is fun to lose.

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

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