Cincinnati Reds at Arizona Diamondbacks
All Cincinnati Reds predictions · All Arizona Diamondbacks predictions
MLB · Friday, August 21, 2026 · 9:41 PM · Final: 0-9
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 | Cincinnati Reds | Arizona Diamondbacks |
|---|---|---|
| BetMGM | +125 | -150 |
| BetRivers | +135 | -152 |
| DraftKings | +137 | -147 |
| ESPN BET | +130 | -150 |
| Fanatics | +130 | -155 |
| FanDuel | +132 | -142 |
| Hard Rock Bet | +135 | -145 |
| Caesars | +140 | -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 at the close.
| Venue | Cincinnati Reds | Arizona Diamondbacks |
|---|---|---|
| Books consensus fair, de-vigged | 41.8% | 58.2% |
| Best book price incl. vig | 41.7% | 58.7% |
| Kalshi contract price | 42.1% | 57.9% |
| Polymarket contract price | 41.5% | 58.5% |
| Markets average | 41.8% | 58.2% |
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.