Loading ticker...
Loading… @TheOddsGap
Home › Game Pages › MLB Odds › Kansas City Royals vs Houston Astros
Games

Kansas City Royals @ Houston Astros

KC Kansas City Royals 2
HOU Houston Astros 6

Final September 17, 2026 · 7:17 PM ET

Astros -1.5: covered · Total 8.5: under

How the Odds Moved, Open to Close

The best moneyline at each scan, from the first price we saw on Sep 17 to the start.

-140+105+140Sep 17Sep 17
Kansas City Royals Houston Astros

Exchanges included. Pinnacle and the offshore books are not, and Kalshi is not charted.

About This Chart

Earliest at Pinnacle: the Astros -147 on Sep 17, closed at -143.

Where Pinnacle's Line Opened, and Where It Closed

This game was listed before Pinnacle priced it, so the number below is Pinnacle's earliest price on it rather than the first number anyone posted. It was actually posted, it is stamped with its own time, and the market may already have moved before it existed.

  • Kansas City Royals: PINN open +136, closed +132 (shorter)
  • Houston Astros: PINN open -147, closed -143 (longer)

Novig paid the most on the Astros at -141. $100 there made $6.82 more than at DraftKings (-156).

Closing Odds at Every Book

Closing prices as of September 17, 7:14 PM ET. These do not move again.

Closing Moneyline

BookKansas City RoyalsHouston Astros
Novig+138-141
Polymarket US+138-141
ProphetX+133-143
theScore Bet+128-145
Hard Rock Bet+130-150

Closing Spread best flagged at +1.5 / -1.5

BookKansas City RoyalsHouston Astros
Polymarket US+1.5 -147-1.5 +144
Novig+1.5 -150-1.5 +144
ProphetX+1.5 -153-1.5 +141
theScore Bet+1.5 -165-1.5 +140
Caesars+1.5 -164-1.5 +139

Closing Total best flagged at 8.5

BookOverUnder
Novig8.5 -1158.5 +113
Polymarket US8.5 -1138.5 +111
ProphetX8.5 -1168.5 +107
theScore Bet8.5 -1308.5 +110
Hard Rock Bet8.5 -1258.5 +105

About These Closing Odds

Every price on this page is a book's own last quote strictly before Kansas City Royals and Houston Astros started, taken from our scan archive. A book that stopped pricing the game early still shows the number it closed at, and a book that never priced it is not listed. 20 books priced this game. The tables list the books you can bet; an offshore book shows when you turn it on in your books, and Pinnacle appears only as the reference on the chart. Prediction market prices include trading fees wherever a fee applies, so they are directly comparable to sportsbook lines. See how we calculate this.

This page is permanent. The closing prices above do not change again, and the page keeps them at this address after the game, the season and the rematch, so it stays a citable record of what this line actually closed at.

Cite this page: https://theoddsgap.com/odds/mlb/kansas-city-royals-vs-houston-astros, final September 17, 2026.

Previous Meetings

Trends for This Game

The Odds Gap Daily

One email each morning: how the lines moved in last night's big game, new finds from Trends, and where the books disagree most on the weekend slate.

Sports (all on by default, uncheck any you skip):

Looking for live prices? Use Unlock Live at the top of the page.

More MLB Odds