Texas Rangers at Seattle Mariners
All Texas Rangers predictions · All Seattle Mariners predictions
MLB · Tuesday, September 8, 2026 · 9:41 PM · Final: 10-5
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 | Texas Rangers | Seattle Mariners |
|---|---|---|
| BetMGM | +105 | -125 |
| BetRivers | +104 | -122 |
| DraftKings | +104 | -126 |
| ESPN BET | +109 | -123 |
| Fanatics | +105 | -125 |
| FanDuel | +108 | -126 |
| Hard Rock Bet | +110 | -125 |
| Caesars | +110 | -130 |
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 | Rangers | Mariners |
|---|---|---|
| BetMGM | +1.5 -200 | −1.5 +165 |
| BetRivers | −1.5 +175 | +1.5 -230 |
| DraftKings | +1.5 -204 | −1.5 +167 |
| ESPN BET | +1.5 -200 | −1.5 +165 |
| Fanatics | +1.5 -205 | −1.5 +165 |
| FanDuel | +1.5 -196 | −1.5 +162 |
| Hard Rock Bet | +1.5 -200 | −1.5 +165 |
| Caesars | +1.5 -195 | −1.5 +162 |
| Total by book | Over | Under |
|---|---|---|
| BetMGM | 7.5 -105 | 7.5 -115 |
| BetRivers | 7.5 -109 | 7.5 -110 |
| DraftKings | 7.5 -104 | 7.5 -116 |
| ESPN BET | 7.5 -110 | 7.5 -110 |
| Fanatics | 7.5 -105 | 7.5 -115 |
| FanDuel | 7.5 -110 | 7.5 -110 |
| Hard Rock Bet | 7.5 -105 | 7.5 -115 |
| Caesars | 7.5 +100 | 7.5 -120 |
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 | Texas Rangers | Seattle Mariners |
|---|---|---|
| Books consensus fair, de-vigged | 46.6% | 53.4% |
| Best book price incl. vig | 47.6% | 55.0% |
| Kalshi contract price | 46.5% | 53.5% |
| Polymarket contract price | 46.5% | 53.5% |
| Markets average | 46.5% | 53.5% |
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.