Kansas City Royals @ Boston Red Sox
September 12, 2026 · 4:11 PM ET
This page is the September 12, 2026 meeting. See the current Kansas City Royals @ Boston Red Sox page →
Kansas City Royals 1 Boston Red Sox 5 Final
Fliff paid the most on Boston Red Sox at -190, against -245 at Bally Bet. Same bet, same result: $11.81 more profit on a $100 stake, out of the 20 books that priced it.
Closing Moneyline last quotes before start
Closing prices as of September 12, 4:08 PM ET. These do not move again. Today's MLB odds.
| Book | Kansas City Royals | Boston Red Sox |
|---|---|---|
| Novig | +203 | -208 |
| BetRivers | +200 | -240 |
| Polymarket US | +199 | -203 |
| Bally Bet | +195 | -245 |
| BetParx | +195 | -245 |
| Caesars | +192 | -235 |
| ProphetX | +192 | -209 |
| BetOnline | +190 | -212 |
| FanDuel | +190 | -230 |
| LowVig | +190 | -212 |
| theScore Bet | +190 | -225 |
| Pinnacle | +189 | -209 |
| BetMGM | +185 | -225 |
| DraftKings | +183 | -225 |
| Kalshi | +181 | -217 |
| Bovada | +180 | -220 |
| Fanatics | +180 | -220 |
| Hard Rock Bet | +180 | -220 |
| MyBookie | +179 | -214 |
| Fliff | +155 | -190 |
Closing Spread best flagged at +1.5 / -1.5
| Book | Kansas City Royals | Boston Red Sox |
|---|---|---|
| Novig | +1.5 -108 | -1.5 +104 |
| BetRivers | +1.5 -108 | -1.5 -113 |
| Polymarket US | +1.5 -108 | -1.5 +106 |
| Bally Bet | +1.5 -108 | -1.5 -113 |
| BetParx | +1.5 -108 | -1.5 -113 |
| Caesars | +1.5 -105 | -1.5 -115 |
| ProphetX | +1.5 -111 | -1.5 +103 |
| BetOnline | +1.5 -110 | -1.5 -110 |
| FanDuel | +1.5 -120 | -1.5 +100 |
| LowVig | +1.5 -107 | -1.5 -107 |
| theScore Bet | +1.5 -120 | -1.5 +100 |
| Pinnacle | +1.5 -113 | -1.5 +103 |
| BetMGM | +1.5 -115 | -1.5 -105 |
| DraftKings | +1.5 -114 | -1.5 -105 |
| Kalshi | +1.5 -115 | -1.5 -103 |
| Bovada | +1.5 -120 | -1.5 +100 |
| Fanatics | +1.5 -115 | -1.5 -105 |
| Hard Rock Bet | +1.5 -120 | -1.5 +100 |
| MyBookie | +1.5 -113 | -1.5 -104 |
| Fliff | +1.5 -140 | -1.5 +105 |
Closing Total best flagged at 8.5
| Book | Over | Under |
|---|---|---|
| Novig | 8.5 -104 | 8.5 +102 |
| BetRivers | 8.5 -114 | 8.5 -107 |
| Polymarket US | 8.5 -108 | 8.5 +106 |
| Bally Bet | 8.5 -114 | 8.5 -107 |
| BetParx | 8.5 -114 | 8.5 -107 |
| Caesars | 8.5 -115 | 8.5 -105 |
| ProphetX | 8.5 -107 | 8.5 -101 |
| BetOnline | 8.5 -120 | 8.5 +100 |
| FanDuel | 8.5 -115 | 8.5 -105 |
| LowVig | 8.5 -118 | 8.5 +103 |
| theScore Bet | 8.5 -115 | 8.5 -105 |
| Pinnacle | 8.5 -110 | 8.5 -102 |
| BetMGM | 8.5 -118 | 8.5 -102 |
| DraftKings | 8.5 -118 | 8.5 -102 |
| Kalshi | 8.5 -115 | 8.5 -103 |
| Bovada | 8.5 -115 | 8.5 -105 |
| Fanatics | 8.5 -115 | 8.5 -105 |
| Hard Rock Bet | 8.5 -115 | 8.5 -105 |
| MyBookie | 8.5 -117 | 8.5 -104 |
| Fliff | 8.5 -105 | 8.5 -120 |
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.
- Kansas City Royals: PINN open +164, closed +200 (longer)
- Boston Red Sox: PINN open -183, closed -190 (shorter)
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 Kansas City Royals and Boston Red Sox 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/kansas-city-royals-vs-boston-red-sox, final September 12, 2026.
Previous Meetings
- Sep 11, 2026: Kansas City Royals 3, Boston Red Sox 2 · closing moneyline +183 / -196
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