Athletics at Seattle Mariners
All Athletics predictions · All Seattle Mariners predictions
MLB · Friday, September 4, 2026 · 10:11 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 | Athletics | Seattle Mariners |
|---|---|---|
| BetMGM | +200 | -250 |
| BetRivers | +195 | -235 |
| DraftKings | +202 | -250 |
| ESPN BET | +208 | -240 |
| Fanatics | +200 | -245 |
| FanDuel | +194 | -235 |
| Hard Rock Bet | +195 | -240 |
| Caesars | +230 | -260 |
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 | Athletics | Mariners |
|---|---|---|
| BetMGM | +1.5 -118 | −1.5 -102 |
| BetRivers | +1.5 -121 | −1.5 +100 |
| DraftKings | +1.5 -115 | −1.5 -105 |
| ESPN BET | +1.5 -120 | −1.5 +100 |
| Fanatics | +1.5 -115 | −1.5 -105 |
| FanDuel | +1.5 -125 | −1.5 +104 |
| Hard Rock Bet | +1.5 -120 | −1.5 +100 |
| Caesars | +1.5 -105 | −1.5 -115 |
| Total by book | Over | Under |
|---|---|---|
| BetMGM | 7.5 +105 | 7.5 -125 |
| BetRivers | 7 -112 | 7 -107 |
| DraftKings | 7 -121 | 7 +101 |
| ESPN BET | 7.5 +110 | 7.5 -130 |
| Fanatics | 7.5 +105 | 7.5 -125 |
| FanDuel | 7 -120 | 7 -102 |
| Hard Rock Bet | 7.5 +105 | 7.5 -125 |
| Caesars | 7 -120 | 7 +100 |
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 | Athletics | Seattle Mariners |
|---|---|---|
| Books consensus fair, de-vigged | 31.9% | 68.1% |
| Best book price incl. vig | 30.3% | 70.1% |
| Kalshi contract price | 32.5% | 67.5% |
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.