Sofia Costoulas vs Tatiana Prozorova
September 21, 2026 · 11:00 PM ET
This page is the September 21, 2026 meeting. See the current Sofia Costoulas vs Tatiana Prozorova page →
Sofia Costoulas 1 Tatiana Prozorova 2 Final
FanDuel paid the most on Tatiana Prozorova at -146, against -180 at Caesars. Same bet, same result: $12.93 more profit on a $100 stake, out of the 11 books that priced it.
Closing Moneyline last quotes before start
Closing prices as of September 21, 12:00 AM ET. These do not move again. Today's Tennis odds.
| Book | Sofia Costoulas | Tatiana Prozorova |
|---|---|---|
| Polymarket US | +138 | -150 |
| Caesars | +135 | -180 |
| Pinnacle | +134 | -154 |
| BetOnline | +133 | -153 |
| LowVig | +133 | -153 |
| DraftKings | +131 | -160 |
| BetMGM | +130 | -165 |
| Bovada | +130 | -155 |
| Fanatics | +130 | -160 |
| Bally Bet | +125 | -157 |
| BetParx | +125 | -157 |
| BetRivers | +125 | -157 |
| Hard Rock Bet | +125 | -155 |
| theScore Bet | +125 | -165 |
| FanDuel | +120 | -146 |
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.
- Sofia Costoulas: PINN open +145, closed +135 (shorter)
- Tatiana Prozorova: PINN open -167, closed -146 (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 Sofia Costoulas and Tatiana Prozorova 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. 15 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 Tennis board or the Line Shop.
Cite this page: https://theoddsgap.com/odds/tennis/sofia-costoulas-vs-tatiana-prozorova, final September 21, 2026.
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