Houston Astros @ Seattle Mariners
September 23, 2026 · 10:11 PM ET
This page is the September 23, 2026 meeting. See the current Houston Astros @ Seattle Mariners page →
Houston Astros 5 Seattle Mariners 6 Final
Polymarket US paid the most on Seattle Mariners at -115, against -136 at Bally Bet. Same bet, same result: $13.43 more profit on a $100 stake, out of the 14 books that priced it.
Closing Moneyline last quotes before start
Closing prices as of September 23, 10:08 PM ET. These do not move again. Today's MLB odds.
| Book | Houston Astros | Seattle Mariners |
|---|---|---|
| Novig | +117 | -120 |
| Pinnacle | +114 | -123 |
| BetOnline | +113 | -125 |
| LowVig | +113 | -125 |
| Polymarket US | +113 | -115 |
| ProphetX | +113 | -120 |
| Bally Bet | +112 | -136 |
| BetParx | +112 | -136 |
| BetRivers | +112 | -136 |
| FanDuel | +110 | -130 |
| Fanatics | +110 | -130 |
| Hard Rock Bet | +110 | -130 |
| theScore Bet | +110 | -130 |
| Bovada | +109 | -131 |
| MyBookie | +109 | -128 |
| DraftKings | +108 | -130 |
| BetMGM | +105 | -130 |
| Caesars | +105 | -127 |
| Kalshi | +104 | -125 |
| Fliff | +100 | -125 |
Closing Spread best flagged at +1.5 / -1.5
| Book | Houston Astros | Seattle Mariners |
|---|---|---|
| Novig | +1.5 -178 | -1.5 +170 |
| Pinnacle | +1.5 -179 | -1.5 +160 |
| BetOnline | +1.5 -193 | -1.5 +168 |
| LowVig | +1.5 -193 | -1.5 +169 |
| Polymarket US | +1.5 -178 | -1.5 +174 |
| ProphetX | +1.5 -180 | -1.5 +171 |
| Bally Bet | +1.5 -190 | -1.5 +155 |
| BetParx | +1.5 -190 | -1.5 +155 |
| BetRivers | +1.5 -190 | -1.5 +155 |
| FanDuel | +1.5 -194 | -1.5 +160 |
| Fanatics | +1.5 -190 | -1.5 +155 |
| Hard Rock Bet | +1.5 -195 | -1.5 +160 |
| theScore Bet | +1.5 -190 | -1.5 +160 |
| Bovada | +1.5 -185 | -1.5 +160 |
| MyBookie | +1.5 -182 | -1.5 +152 |
| DraftKings | +1.5 -193 | -1.5 +158 |
| BetMGM | +1.5 -190 | -1.5 +155 |
| Caesars | +1.5 -190 | -1.5 +160 |
| Kalshi | +1.5 -189 | -1.5 +158 |
| Fliff | +1.5 -205 | -1.5 +155 |
Closing Total best flagged at 7.5
| Book | Over | Under |
|---|---|---|
| Novig | 7.5 -102 | 7.5 +100 |
| Pinnacle | 7.5 -109 | 7.5 -103 |
| BetOnline | 7.5 -106 | 7.5 -114 |
| LowVig | 7.5 -103 | 7.5 -112 |
| Polymarket US | 7.5 -106 | 7.5 +104 |
| ProphetX | 7.5 -104 | 7.5 -103 |
| Bally Bet | 7.5 -113 | 7.5 -108 |
| BetParx | 7.5 -113 | 7.5 -108 |
| BetRivers | 7.5 -113 | 7.5 -108 |
| FanDuel | 7.5 -115 | 7.5 -105 |
| Fanatics | 7.5 -110 | 7.5 -110 |
| Hard Rock Bet | 7.5 -115 | 7.5 -105 |
| theScore Bet | 7.5 -115 | 7.5 -105 |
| Bovada | 7.5 -115 | 7.5 -105 |
| MyBookie | 7.5 -113 | 7.5 -108 |
| DraftKings | 7.5 -112 | 7.5 -107 |
| BetMGM | 7.5 -110 | 7.5 -110 |
| Caesars | 7.5 -115 | 7.5 -105 |
| Kalshi | 7.5 -111 | 7.5 -107 |
| Fliff | 7.5 -110 | 7.5 -110 |
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.
- Houston Astros: PINN open +122, closed +112 (shorter)
- Seattle Mariners: PINN open -135, closed -127 (longer)
Moneyline Movement
Best shoppable US-book price at each scan, from open to close. Excludes the exchanges, Pinnacle and the offshore books.
About These Closing Odds
Every price on this page is a book's own last quote strictly before Houston Astros and Seattle Mariners 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. 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.
For today's games, open the MLB board or the Line Shop.
Cite this page: https://theoddsgap.com/odds/mlb/houston-astros-vs-seattle-mariners, final September 23, 2026.
Previous Meetings
- Sep 22, 2026: Houston Astros 7, Seattle Mariners 0 · closing moneyline +120 / -130
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