Seattle Mariners @ Houston Astros
August 15, 2026 · 7:11 PM ET
This page is the August 15, 2026 meeting. See the current Seattle Mariners @ Houston Astros page →
Seattle Mariners 10 Houston Astros 5 Final
Novig paid the most on Seattle Mariners at +115, against +104 at Bally Bet. Same bet, same result: $11.00 more profit on a $100 stake, out of the 20 books that priced it.
Closing Moneyline last quotes before start
Closing prices as of August 15, 7:10 PM ET. These do not move again. Today's MLB odds.
| Book | Seattle Mariners | Houston Astros |
|---|---|---|
| Novig | +115 | -117 |
| Polymarket US | +115 | -117 |
| ProphetX | +113 | -119 |
| DraftKings | +111 | -119 |
| Caesars | +110 | -121 |
| FanDuel | +110 | -120 |
| Hard Rock Bet | +110 | -120 |
| Pinnacle | +110 | -119 |
| BetOnline | +109 | -120 |
| LowVig | +109 | -120 |
| BetRivers | +108 | -122 |
| theScore Bet | +107 | -120 |
| MyBookie | +106 | -124 |
| BetMGM | +105 | -125 |
| Bovada | +105 | -125 |
| Fanatics | +105 | -125 |
| Fliff | +105 | -130 |
| Bally Bet | +104 | -127 |
| BetParx | +104 | -127 |
| Kalshi | +104 | -125 |
Closing Spread best flagged at +1.5 / -1.5
| Book | Seattle Mariners | Houston Astros |
|---|---|---|
| Novig | +1.5 -182 | -1.5 +174 |
| Polymarket US | +1.5 -178 | -1.5 +174 |
| ProphetX | +1.5 -184 | -1.5 +171 |
| DraftKings | +1.5 -198 | -1.5 +163 |
| Caesars | +1.5 -195 | -1.5 +162 |
| FanDuel | +1.5 -205 | -1.5 +168 |
| Hard Rock Bet | +1.5 -185 | -1.5 +175 |
| Pinnacle | +1.5 -189 | -1.5 +169 |
| BetOnline | +1.5 -195 | -1.5 +170 |
| LowVig | +1.5 -195 | -1.5 +171 |
| BetRivers | +1 -148 | -1 +120 |
| theScore Bet | +1.5 -200 | -1.5 +165 |
| MyBookie | +1.5 -187 | -1.5 +157 |
| Bovada | +1.5 -195 | -1.5 +165 |
| Fanatics | +1.5 -200 | -1.5 +160 |
| Fliff | +1.5 -210 | -1.5 +155 |
| Bally Bet | +1.5 -215 | -1.5 +165 |
| BetParx | +1.5 -215 | -1.5 +165 |
| Kalshi | +1.5 -189 | -1.5 +158 |
Closing Total best flagged at 8.5
| Book | Over | Under |
|---|---|---|
| Novig | 8.5 -102 | 8.5 -102 |
| Polymarket US | 8.5 -106 | 8.5 +104 |
| ProphetX | 8.5 -105 | 8.5 -104 |
| DraftKings | 8.5 -108 | 8.5 -112 |
| Caesars | 8.5 -105 | 8.5 -115 |
| FanDuel | 8.5 -112 | 8.5 -108 |
| Hard Rock Bet | 8.5 -105 | 8.5 -105 |
| Pinnacle | 8.5 -108 | 8.5 -104 |
| BetOnline | 8.5 -110 | 8.5 -110 |
| LowVig | 8.5 -107 | 8.5 -107 |
| BetRivers | 8.5 -108 | 8.5 -110 |
| theScore Bet | 8.5 -115 | 8.5 -105 |
| MyBookie | 8.5 -112 | 8.5 -109 |
| BetMGM | 8.5 -110 | 8.5 -110 |
| Bovada | 8.5 -110 | 8.5 -110 |
| Fanatics | 8.5 -110 | 8.5 -110 |
| Fliff | 8.5 -110 | 8.5 -110 |
| Bally Bet | 8.5 -109 | 8.5 -112 |
| BetParx | 8.5 -109 | 8.5 -112 |
| Kalshi | 8.5 -111 | 8.5 -107 |
The earliest price we can prove, and where it closed
This game was already listed when our search window opened, so the number below is the earliest one we have on record rather than the opening line. It was captured once from the odds archive and actually posted.
- Seattle Mariners: PINN earliest +111, closed +115 (longer)
- Houston Astros: PINN earliest -122, closed -117 (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 Seattle Mariners 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. 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/seattle-mariners-vs-houston-astros, final August 15, 2026.
Previous Meetings
- Aug 14, 2026: Seattle Mariners 7, Houston Astros 10 · closing moneyline +113 / -115
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