Washington Nationals @ St. Louis Cardinals
This page is the September 18, 2026 meeting. See the current Washington Nationals @ St. Louis Cardinals page →
Final September 18, 2026 · 8:16 PM ET
Nationals -1.5: covered · Total 7.5: over
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.
Exchanges included. Pinnacle and the offshore books are not, and Kalshi is not charted.
About This Chart
Earliest at Pinnacle: the Nationals +100 on Sep 17, closed at -108.
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 -108 (shorter)
- St. Louis Cardinals: PINN open -111, closed +100 (longer)
Polymarket US paid the most on the Nationals at -104. $100 there made $9.19 more than at Bally Bet (-115).
Closing Odds at Every Book
Closing prices as of September 18, 8:13 PM ET. These do not move again.
Closing Moneyline
| Book | Washington Nationals | St. Louis Cardinals |
|---|---|---|
| Novig | -106 | +104 |
| Polymarket US | -104 | +102 |
| ProphetX | -106 | -101 |
| FanDuel | -110 | -106 |
| Caesars | -109 | -107 |
| Kalshi | -111 | -107 |
| BetRivers | -114 | -105 |
| DraftKings | -112 | -107 |
| BetMGM | -115 | -105 |
| Fanatics | -115 | -105 |
| Hard Rock Bet | -110 | -110 |
| theScore Bet | -110 | -110 |
| Bally Bet | -115 | -106 |
| BetParx | -115 | -106 |
| BetOnline | -112 | +102 |
| LowVig | -112 | +102 |
| Bovada | -112 | -108 |
| 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 |
| Hard Rock Bet | -1.5 +160 | +1.5 -185 |
| Caesars | -1.5 +160 | +1.5 -190 |
| FanDuel | -1.5 +158 | +1.5 -192 |
| Kalshi | -1.5 +152 | +1.5 -182 |
| theScore Bet | -1.5 +150 | +1.5 -180 |
| BetMGM | -1.5 +150 | +1.5 -185 |
| Fanatics | -1.5 +150 | +1.5 -185 |
| BetRivers | -1.5 +148 | +1.5 -182 |
| Bally Bet | -1.5 +148 | +1.5 -182 |
| BetParx | -1.5 +148 | +1.5 -182 |
| DraftKings | -1.5 +144 | +1.5 -175 |
| Bovada | -1.5 +155 | +1.5 -180 |
| LowVig | -1.5 +151 | +1.5 -171 |
| BetOnline | -1.5 +150 | +1.5 -171 |
| 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 |
| Kalshi | 7.5 -115 | 7.5 -103 |
| Caesars | 7.5 -114 | 7.5 -104 |
| theScore Bet | 7.5 -120 | 7.5 +100 |
| Hard Rock Bet | 7.5 -115 | 7.5 -105 |
| BetMGM | 7.5 -115 | 7.5 -105 |
| Fanatics | 7.5 -115 | 7.5 -105 |
| FanDuel | 7.5 -114 | 7.5 -106 |
| DraftKings | 8 -103 | 8 -116 |
| BetRivers | 8 -110 | 8 -129 |
| Bally Bet | 8 -110 | 8 -129 |
| BetParx | 8 -110 | 8 -129 |
| LowVig | 7.5 -109 | 7.5 -105 |
| Bovada | 7.5 -115 | 7.5 -105 |
| BetOnline | 7.5 -112 | 7.5 -108 |
| Fliff | 7.5 -120 | 7.5 -105 |
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. 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/washington-nationals-vs-st-louis-cardinals, final September 18, 2026.
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