Arizona Diamondbacks at Boston Red Sox
All Arizona Diamondbacks predictions · All Boston Red Sox predictions
MLB · Wednesday, August 19, 2026 · 4:10 PM · Final: 7-6
Closing moneyline by book
The last price each book posted before first pitch — the prices this call could actually have been bet at. Best on each side is highlighted. In-game odds are deliberately excluded: once the game starts, the price tracks the score, not the matchup.
| Book | Arizona Diamondbacks | Boston Red Sox |
|---|---|---|
| BetMGM | +140 | -170 |
| BetRivers | +120 | -148 |
| DraftKings | +149 | -160 |
| ESPN BET | +143 | -162 |
| Fanatics | +140 | -170 |
| FanDuel | +146 | -158 |
| Hard Rock Bet | +150 | -160 |
| Caesars | +147 | -157 |
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 at the close.
| Venue | Arizona Diamondbacks | Boston Red Sox |
|---|---|---|
| Books consensus fair, de-vigged | 39.8% | 60.2% |
| Best book price incl. vig | 40.0% | 59.7% |
| Kalshi contract price | 40.1% | 59.9% |
| Polymarket contract price | 39.5% | 60.5% |
| Markets average | 39.8% | 60.2% |
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.