Athletics at Seattle Mariners
All Athletics predictions · All Seattle Mariners predictions
MLB · Thursday, September 3, 2026 · 9:40 PM · Final: 7-4
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 | +180 | -220 |
| BetRivers | +205 | -250 |
| DraftKings | +177 | -217 |
| ESPN BET | +190 | -217 |
| Fanatics | +175 | -215 |
| FanDuel | +172 | -205 |
| Hard Rock Bet | +175 | -220 |
| Caesars | +183 | -203 |
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 -125 | −1.5 +105 |
| BetRivers | +1.5 -108 | −1.5 -113 |
| DraftKings | +1.5 -126 | −1.5 +104 |
| ESPN BET | +1.5 -130 | −1.5 +110 |
| Fanatics | +1.5 -125 | −1.5 +105 |
| FanDuel | +1.5 -134 | −1.5 +112 |
| Hard Rock Bet | +1.5 -125 | −1.5 +105 |
| Caesars | +1.5 -125 | −1.5 +105 |
| Total by book | Over | Under |
|---|---|---|
| BetMGM | 7.5 -105 | 7.5 -115 |
| BetRivers | 7.5 -107 | 7.5 -114 |
| DraftKings | 7.5 -106 | 7.5 -113 |
| ESPN BET | 7.5 +100 | 7.5 -120 |
| Fanatics | 7.5 -105 | 7.5 -115 |
| FanDuel | 7.5 +100 | 7.5 -122 |
| Hard Rock Bet | 7.5 -105 | 7.5 -115 |
| Caesars | 7.5 -105 | 7.5 -115 |
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 | 34.5% | 65.5% |
| Best book price incl. vig | 32.8% | 67.0% |
| Kalshi contract price | 33.5% | 66.5% |
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.