Cleveland Guardians at Boston Red Sox
All Cleveland Guardians predictions · All Boston Red Sox predictions
MLB · Wednesday, September 23, 2026 · 7:11 PM
The model's call
Boston Red Sox to win
Model confidence 55.6%
Books consensus 55.6%
Identical on purpose: the model applies no adjustment to the books’ de-vigged
consensus until a candidate signal proves itself in shadow audit — none has yet.
Prediction markets below are a comparison, not an input.
Line shop — latest moneyline by book
Best available price on each side is highlighted. Prices move; always confirm at the book.
| Book | Cleveland Guardians | Boston Red Sox |
|---|---|---|
| Fanatics | +115 | -140 |
| FanDuel | +120 | -142 |
| Caesars | +115 | -134 |
Prediction markets vs the books
Every venue sells the same thing — a dollar if that side wins — at a different price. Implied cost per venue below; amber = the cheapest way to buy that side right now.
| Venue | Cleveland Guardians | Boston Red Sox |
|---|---|---|
| Books consensus fair, de-vigged | 44.4% | 55.6% |
| Best book price incl. vig | 45.5% | 57.3% |
| Kalshi contract price | 45.3% | 54.7% |
| Polymarket contract price | 44.5% | 55.5% |
| Markets average | 44.9% | 55.1% |
Contract prices exclude exchange trading fees (Kalshi ~1–2¢ midrange), which narrow small gaps. A venue meaningfully below the books consensus is either a bargain or an early opinion — the graded record decides which.
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