Washington Nationals at Miami Marlins
All Washington Nationals predictions · All Miami Marlins predictions
MLB · Friday, August 21, 2026 · 7:11 PM · Final: 2-3
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 | Washington Nationals | Miami Marlins |
|---|---|---|
| BetMGM | +125 | -155 |
| BetRivers | +125 | -143 |
| DraftKings | +132 | -142 |
| ESPN BET | +125 | -145 |
| Fanatics | +125 | -150 |
| FanDuel | +136 | -146 |
| Hard Rock Bet | +135 | -145 |
| Caesars | +135 | -145 |
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 | Washington Nationals | Miami Marlins |
|---|---|---|
| Books consensus fair, de-vigged | 42.3% | 57.7% |
| Best book price incl. vig | 42.4% | 58.7% |
| Kalshi contract price | 41.5% | 58.5% |
| Polymarket contract price | 41.5% | 58.5% |
| Markets average | 41.5% | 58.5% |
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.