Kansas City Royals at Houston Astros
All Kansas City Royals predictions · All Houston Astros predictions
MLB · Thursday, September 17, 2026 · 7:17 PM · Final: 2-6
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 | Kansas City Royals | Houston Astros |
|---|---|---|
| BetMGM | +125 | -155 |
| BetRivers | +120 | -143 |
| DraftKings | +129 | -156 |
| ESPN BET | +128 | -145 |
| Fanatics | +125 | -150 |
| FanDuel | +124 | -146 |
| Hard Rock Bet | +130 | -150 |
| Caesars | +129 | -152 |
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 | Royals | Astros |
|---|---|---|
| BetMGM | +1.5 -165 | −1.5 +135 |
| BetRivers | +1.5 -148 | −1.5 +118 |
| DraftKings | +1.5 -163 | −1.5 +135 |
| ESPN BET | +1.5 -165 | −1.5 +140 |
| Fanatics | +1.5 -165 | −1.5 +135 |
| FanDuel | +1.5 -170 | −1.5 +140 |
| Hard Rock Bet | +1.5 -165 | −1.5 +135 |
| Caesars | +1.5 -164 | −1.5 +139 |
| Total by book | Over | Under |
|---|---|---|
| BetMGM | 9 +100 | 9 -130 |
| BetRivers | 8.5 -121 | 8.5 -103 |
| DraftKings | 9 -102 | 9 -118 |
| ESPN BET | 8.5 -130 | 8.5 +110 |
| Fanatics | 9 -105 | 9 -115 |
| FanDuel | 8.5 -128 | 8.5 +104 |
| Hard Rock Bet | 8.5 -125 | 8.5 +105 |
| Caesars | 9 +100 | 9 -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 | Kansas City Royals | Houston Astros |
|---|---|---|
| Books consensus fair, de-vigged | 42.4% | 57.6% |
| Best book price incl. vig | 43.5% | 58.8% |
| Kalshi contract price | 42.1% | 57.9% |
| Polymarket contract price | 42.1% | 57.9% |
| Markets average | 42.1% | 57.9% |
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.