Detroit Tigers at Seattle Mariners
All Detroit Tigers predictions · All Seattle Mariners predictions
MLB · Thursday, August 6, 2026 · 4:11 PM · Final: 11-0
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 | Detroit Tigers | Seattle Mariners |
|---|---|---|
| BetMGM | +100 | -120 |
| BetRivers | +105 | -120 |
| DraftKings | +111 | -119 |
| ESPN BET | +107 | -120 |
| Fanatics | +100 | -120 |
| FanDuel | +106 | -116 |
| Hard Rock Bet | +110 | -120 |
| Caesars | +105 | -115 |
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 | Tigers | Mariners |
|---|---|---|
| BetMGM | +1.5 -220 | −1.5 +165 |
| BetRivers | −1.5 +175 | +1.5 -230 |
| DraftKings | +1.5 -199 | −1.5 +163 |
| ESPN BET | −1.5 +170 | +1.5 -215 |
| Fanatics | +1.5 -205 | −1.5 +165 |
| FanDuel | −1.5 +168 | +1.5 -205 |
| Hard Rock Bet | −1.5 +180 | +1.5 -190 |
| Caesars | +1.5 -205 | −1.5 +170 |
| Total by book | Over | Under |
|---|---|---|
| BetMGM | 8 -105 | 8 -115 |
| BetRivers | 8 +100 | 8 -120 |
| DraftKings | 8 -110 | 8 -110 |
| ESPN BET | 7.5 -125 | 7.5 +105 |
| Fanatics | 8 -105 | 8 -115 |
| FanDuel | 7.5 -118 | 7.5 -104 |
| Hard Rock Bet | 7.5 -115 | 7.5 +105 |
| Caesars | 7.5 -125 | 7.5 +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 | Detroit Tigers | Seattle Mariners |
|---|---|---|
| Books consensus fair, de-vigged | 47.3% | 52.7% |
| Best book price incl. vig | 47.4% | 53.5% |
| Kalshi contract price | 47.5% | 52.5% |
| Polymarket contract price | 47.5% | 52.5% |
| Markets average | 47.5% | 52.5% |
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.