Washington Nationals @ St. Louis Cardinals
September 18, 2026 · 8:16 PM ET
This page is the September 18, 2026 meeting. See the current Washington Nationals @ St. Louis Cardinals page →
Washington Nationals 9 St. Louis Cardinals 1 Final
Polymarket US paid the most on Washington Nationals at -104, against -115 at Bally Bet. Same bet, same result: $9.19 more profit on a $100 stake, out of the 13 books that priced it.
Closing Moneyline last quotes before start
Closing prices as of September 18, 8:13 PM ET. These do not move again. Today's MLB odds.
| Book | Washington Nationals | St. Louis Cardinals |
|---|---|---|
| Polymarket US | -104 | +102 |
| Novig | -106 | +104 |
| ProphetX | -106 | -101 |
| Pinnacle | -108 | +100 |
| Caesars | -109 | -107 |
| FanDuel | -110 | -106 |
| Hard Rock Bet | -110 | -110 |
| theScore Bet | -110 | -110 |
| Kalshi | -111 | -107 |
| BetOnline | -112 | +102 |
| Bovada | -112 | -108 |
| DraftKings | -112 | -107 |
| LowVig | -112 | +102 |
| BetRivers | -114 | -105 |
| Bally Bet | -115 | -106 |
| BetMGM | -115 | -105 |
| BetParx | -115 | -106 |
| Fanatics | -115 | -105 |
| Fliff | -120 | -105 |
Closing Spread best flagged at -1.5 / +1.5
| Book | Washington Nationals | St. Louis Cardinals |
|---|---|---|
| Polymarket US | -1.5 +167 | +1.5 -170 |
| Novig | -1.5 +167 | +1.5 -170 |
| ProphetX | -1.5 +161 | +1.5 -173 |
| Pinnacle | -1.5 +155 | +1.5 -184 |
| Caesars | -1.5 +160 | +1.5 -190 |
| FanDuel | -1.5 +158 | +1.5 -192 |
| Hard Rock Bet | -1.5 +160 | +1.5 -185 |
| theScore Bet | -1.5 +150 | +1.5 -180 |
| Kalshi | -1.5 +152 | +1.5 -182 |
| BetOnline | -1.5 +150 | +1.5 -171 |
| Bovada | -1.5 +155 | +1.5 -180 |
| DraftKings | -1.5 +144 | +1.5 -175 |
| LowVig | -1.5 +151 | +1.5 -171 |
| BetRivers | -1.5 +148 | +1.5 -182 |
| Bally Bet | -1.5 +148 | +1.5 -182 |
| BetMGM | -1.5 +150 | +1.5 -185 |
| BetParx | -1.5 +148 | +1.5 -182 |
| Fanatics | -1.5 +150 | +1.5 -185 |
| Fliff | -1.5 +145 | +1.5 -195 |
Closing Total best flagged at 7.5
| Book | Over | Under |
|---|---|---|
| Polymarket US | 7.5 -106 | 7.5 +104 |
| Novig | 7.5 -106 | 7.5 +104 |
| ProphetX | 7.5 -108 | 7.5 +102 |
| Pinnacle | 7.5 -109 | 7.5 -104 |
| Caesars | 7.5 -114 | 7.5 -104 |
| FanDuel | 7.5 -114 | 7.5 -106 |
| Hard Rock Bet | 7.5 -115 | 7.5 -105 |
| theScore Bet | 7.5 -120 | 7.5 +100 |
| Kalshi | 7.5 -115 | 7.5 -103 |
| BetOnline | 7.5 -112 | 7.5 -108 |
| Bovada | 7.5 -115 | 7.5 -105 |
| DraftKings | 8 -103 | 8 -116 |
| LowVig | 7.5 -109 | 7.5 -105 |
| BetRivers | 8 -110 | 8 -129 |
| Bally Bet | 8 -110 | 8 -129 |
| BetMGM | 7.5 -115 | 7.5 -105 |
| BetParx | 8 -110 | 8 -129 |
| Fanatics | 7.5 -115 | 7.5 -105 |
| Fliff | 7.5 -120 | 7.5 -105 |
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.
- Washington Nationals: PINN open +100, closed -109 (shorter)
- St. Louis Cardinals: PINN open -111, closed -105 (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 Washington Nationals and St. Louis Cardinals 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. 19 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.
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Cite this page: https://theoddsgap.com/odds/mlb/washington-nationals-vs-st-louis-cardinals, final September 18, 2026.
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