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Home/MLB/Arizona Diamondbacks @ Boston Red Sox
MLB · 2026-08-19

Arizona Diamondbacks vs Boston Red Sox

Fenway Park

Arizona Diamondbacks
66-61
VS
Boston Red Sox
68-58
53%
Boston Red Sox win probability · -158
Tale of the tape
47%Win probability53%
0.520Win %0.540
+3Run differential+96
Toss-up-158 · DraftKings
Boston Red Sox to win
The market (61%) rates this higher than our model (53%) — no real edge, so we pass.

The model lands on Boston Red Sox here, giving them a 53% chance to come out on top against Arizona Diamondbacks. Essentially a coin flip at 53% — entertainment only, not a spot to press. Pitching matchup: Payton Tolle (2.97 ERA) vs Brandon Pfaadt (3.11 ERA).

Why we lean this way

  • Form & record: Boston Red Sox sit 68-58 (0.540), Arizona Diamondbacks 66-61 (0.520).
  • Last 10: Boston Red Sox 4-6 (W2), Arizona Diamondbacks 4-6 (L3). Hot streaks move these lines fast.
  • Run differential: Boston Red Sox +96, Arizona Diamondbacks +3 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 Payton Tolle; Arizona Diamondbacks counter with Brandon Pfaadt. 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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