Miami Marlins at Washington Nationals
All Miami Marlins predictions · All Washington Nationals predictions
MLB · Monday, August 31, 2026 · 6:46 PM · Final: 3-6
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 | Miami Marlins | Washington Nationals |
|---|---|---|
| BetMGM | -115 | -105 |
| BetRivers | -124 | +104 |
| DraftKings | -112 | +104 |
| ESPN BET | -115 | +102 |
| Fanatics | -115 | -105 |
| FanDuel | -110 | +102 |
| Hard Rock Bet | -110 | +100 |
| Caesars | -114 | +104 |
Spread & total
Not part of the model's call. Collected from every book and graded in public so the prices can be checked — how spreads and totals have graded so far. The percent is what the price itself implies, vig removed.
| Spread by book | Marlins | Nationals |
|---|---|---|
| BetMGM | −1.5 +135 | +1.5 -165 |
| BetRivers | −1.5 +132 | +1.5 -162 |
| DraftKings | −1.5 +132 | +1.5 -160 |
| ESPN BET | −1.5 +140 | +1.5 -165 |
| Fanatics | −1.5 +140 | +1.5 -170 |
| FanDuel | −1.5 +138 | +1.5 -166 |
| Hard Rock Bet | −1.5 +150 | +1.5 -160 |
| Caesars | −1.5 +140 | +1.5 -165 |
| Total by book | Over | Under |
|---|---|---|
| BetMGM | 8.5 -115 | 8.5 -105 |
| BetRivers | 8.5 -108 | 8.5 -113 |
| DraftKings | 8.5 -115 | 8.5 -105 |
| ESPN BET | 8.5 -115 | 8.5 -105 |
| Fanatics | 8.5 -115 | 8.5 -105 |
| FanDuel | 8.5 -110 | 8.5 -110 |
| Hard Rock Bet | 8.5 -110 | 8.5 +100 |
| Caesars | 8.5 -115 | 8.5 -105 |
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 | Miami Marlins | Washington Nationals |
|---|---|---|
| Books consensus fair, de-vigged | 51.6% | 48.4% |
| Best book price incl. vig | 52.4% | 49.0% |
| Kalshi contract price | 50.5% | 49.5% |
| Polymarket contract price | 51.5% | 48.5% |
| Markets average | 51.0% | 49.0% |
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.