Sofia Costoulas vs Tatiana Prozorova
Final September 22, 2026 · 1:30 AM ET
How the Odds Moved, Open to Close
The best moneyline at each scan, from the first price we saw on Sep 21 to the start.
Exchanges included. Pinnacle and the offshore books are not, and Kalshi is not charted.
About This Chart
Earliest at Pinnacle: Tatiana Prozorova -148 on Sep 21, closed at -153.
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 +129, closed +136 (longer)
- Tatiana Prozorova: PINN open -148, closed -153 (shorter)
Polymarket US paid the most on Tatiana Prozorova at -150. $100 there made $4.94 more than at DraftKings (-162).
Closing Odds at Every Book
Closing prices as of September 22, 12:00 AM ET. These do not move again.
Closing Moneyline
| Book | Sofia Costoulas | Tatiana Prozorova |
|---|---|---|
| Polymarket US | +138 | -150 |
| DraftKings | +132 | -162 |
| Fanatics | +130 | -160 |
| theScore Bet | +130 | -160 |
| FanDuel | +124 | -150 |
| Hard Rock Bet | +125 | -155 |
| Bally Bet | +125 | -157 |
| BetParx | +125 | -157 |
| BetRivers | +125 | -157 |
| Caesars | +125 | -160 |
| BetMGM | +120 | -155 |
| BetOnline | +135 | -155 |
| LowVig | +135 | -155 |
| Bovada | +130 | -155 |
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. 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/tennis/sofia-costoulas-vs-tatiana-prozorova, final September 22, 2026.
Previous Meetings
- Sep 21, 2026: Sofia Costoulas 1, Tatiana Prozorova 2 · closing moneyline +135 / -146
Tennis Games Coming Up
- Tomas Machac vs Arthur Fils odds · Wed Nov 4, 2:30 PM ET
- Arthur Rinderknech vs Ben Shelton odds · Thu Nov 5, 5:00 AM ET
- Quentin Halys vs Tommy Paul odds · Thu Nov 5, 5:00 AM ET
- Luca Van Assche vs Lorenzo Musetti odds · Thu Nov 5, 5:00 AM ET
- Arthur Rinderknech vs Ben Shelton odds · Thu Nov 5, 6:10 AM ET
The Odds Gap Daily
One email each morning: how the lines moved in last night's big game, new finds from Trends, and where the books disagree most on the weekend slate.
Looking for live prices? Use Unlock Live at the top of the page.