Boston Red Sox at Tampa Bay Rays
All Boston Red Sox predictions · All Tampa Bay Rays predictions
MLB · Sunday, September 20, 2026 · 1:40 PM
The model's call
Tampa Bay Rays to win
Model confidence 57.6%
Books consensus 57.6%
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 | Boston Red Sox | Tampa Bay Rays |
|---|---|---|
| BetMGM | +125 | -155 |
| DraftKings | +129 | -155 |
| ESPN BET | +125 | -145 |
| Fanatics | +125 | -150 |
| Hard Rock Bet | +125 | -150 |
| Caesars | +128 | -150 |
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 | Boston Red Sox | Tampa Bay Rays |
|---|---|---|
| Books consensus fair, de-vigged | 42.4% | 57.6% |
| Best book price incl. vig | 43.7% | 59.2% |
| Kalshi contract price | 41.8% | 58.2% |
| Polymarket contract price | 43.5% | 56.5% |
| Markets average | 42.6% | 57.3% |
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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