Baltimore Orioles @ Seattle Mariners
June 18, 2026 · 4:11 PM ET
This page is the June 18, 2026 meeting. See the current Baltimore Orioles @ Seattle Mariners page →
Baltimore Orioles 0 Seattle Mariners 3 Final
Novig paid the most on Seattle Mariners at -122, against -148 at Bally Bet. Same bet, same result: $14.40 more profit on a $100 stake, out of the 20 books that priced it.
Closing Moneyline last quotes before start
Closing prices as of June 18, 4:00 PM ET. These do not move again. Today's MLB odds.
| Book | Baltimore Orioles | Seattle Mariners |
|---|---|---|
| ProphetX | +122 | -136 |
| Polymarket | +121 | -129 |
| Bally Bet | +120 | -148 |
| BetParx | +120 | -148 |
| Hard Rock Bet | +120 | -140 |
| Novig | +120 | -122 |
| BetRivers | +118 | -148 |
| FanDuel | +118 | -138 |
| Pinnacle | +117 | -126 |
| Fliff | +115 | -140 |
| theScore Bet | +115 | -135 |
| BetOnline | +113 | -125 |
| Kalshi | +113 | -141 |
| LowVig | +113 | -125 |
| Bovada | +112 | -134 |
| MyBookie | +111 | -130 |
| BetMGM | +110 | -135 |
| Caesars | +110 | -130 |
| Fanatics | +110 | -130 |
| DraftKings | +109 | -132 |
Closing Spread best flagged at +1.5 / -1.5
| Book | Baltimore Orioles | Seattle Mariners |
|---|---|---|
| ProphetX | +1.5 -170 | -1.5 +152 |
| Polymarket | +1.5 -172 | -1.5 +162 |
| Bally Bet | +1.5 -190 | -1.5 +150 |
| BetParx | +1.5 -190 | -1.5 +150 |
| Hard Rock Bet | +1.5 -175 | -1.5 +145 |
| BetRivers | +1.5 -190 | -1.5 +150 |
| FanDuel | +1.5 -178 | -1.5 +146 |
| Pinnacle | +1.5 -179 | -1.5 +160 |
| Fliff | +1.5 -195 | -1.5 +145 |
| theScore Bet | +1.5 -190 | -1.5 +160 |
| BetOnline | +1.5 -195 | -1.5 +170 |
| Kalshi | +1.5 -182 | -1.5 +152 |
| LowVig | +1.5 -195 | -1.5 +171 |
| Bovada | +1.5 -185 | -1.5 +160 |
| MyBookie | +1.5 -190 | -1.5 +161 |
| BetMGM | +1.5 -200 | -1.5 +165 |
| Caesars | +1.5 -195 | -1.5 +162 |
| Fanatics | +1.5 -190 | -1.5 +155 |
| DraftKings | +1.5 -194 | -1.5 +159 |
Closing Total best flagged at 7.5
| Book | Over | Under |
|---|---|---|
| ProphetX | 7.5 -109 | 7.5 -102 |
| Polymarket | 7.5 -109 | 7.5 +103 |
| Bally Bet | 7.5 -117 | 7.5 -105 |
| BetParx | 7.5 -117 | 7.5 -105 |
| Hard Rock Bet | 7.5 -115 | 7.5 -105 |
| BetRivers | 7.5 -118 | 7.5 -106 |
| FanDuel | 7.5 -115 | 7.5 -105 |
| Pinnacle | 7.5 -110 | 7.5 -102 |
| Fliff | 7.5 -120 | 7.5 -105 |
| theScore Bet | 7.5 -115 | 7.5 -105 |
| BetOnline | 8 +103 | 8 -123 |
| Kalshi | 7.5 -115 | 7.5 -103 |
| LowVig | 8 +106 | 8 -121 |
| Bovada | 7.5 -115 | 7.5 -105 |
| MyBookie | 7.5 -110 | 7.5 -111 |
| BetMGM | 7.5 -115 | 7.5 -105 |
| Caesars | 7.5 -115 | 7.5 -105 |
| Fanatics | 7.5 -115 | 7.5 -105 |
| DraftKings | 7.5 -114 | 7.5 -105 |
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 Baltimore Orioles 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/baltimore-orioles-vs-seattle-mariners, final June 18, 2026.
Previous Meetings
- Jun 17, 2026: Baltimore Orioles 5, Seattle Mariners 3 · closing moneyline +121 / -121
- Jun 16, 2026: Baltimore Orioles 1, Seattle Mariners 3 · closing moneyline +135 / -139
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- Baltimore Orioles: Boston Red Sox vs Baltimore Orioles odds · Sun Sep 6, 1:35 PM ET
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