Tennis · WTA Singapore · 21/09, 06:00
Prediction: Tatiana Prozorova vs Sofia Costoulas
Team pages: Tatiana Prozorova · Sofia Costoulas
Prediction summary
Winner
Tatiana Prozorova
Sofia Costoulas
Estimated games
21.6Bet365 line 22.5
Recent form · 10 last
Tatiana Prozorova
5-5 (W-L)
Sofia Costoulas
7-3 (W-L)
Head-to-head
Tatiana Prozorova
1–1
Sofia Costoulas
(2 last)
- 29 Jan2-1 16-12W
- 06 Dec1-2 13-17L
Our model (Elo) vs Market
Rating Elo · Tatiana Prozorova 1509 · Sofia Costoulas 1484
| Tatiana Prozorova | Sofia Costoulas | |
|---|---|---|
| Our model | 54% | 46% |
| Market | 57% | 43% |
The bar above blends our model with the market: where our probability diverges most from the odds is where the model sees the widest gap.
Statistics
| Tatiana Prozorova | Sofia Costoulas | |
|---|---|---|
| Win % | 50% | 50% |
| Win % · Hard | 57% (7) | 33% (3) |
| Sets (G-P) | 1.2-1.2 | 1.3-1 |
| Games (G-P) | 11-10.7 | 11-10 |
| Aces | 2.6 | 3.1 |
| Double faults | 2.9 | 1.9 |
| 1st serve % | 63.9% | 71% |
| Break % | 45.9% | 46.5% |
Estimated total games (ours)
21.6 · Bet365 line 22.5 · -0.9
Over 22.5: 44% · 1.90
Under 22.5: 56% · 1.80
H2H · Tatiana Prozorova 1 – 1 Sofia Costoulas (2)
Head-to-head (H2H) · Tatiana Prozorova 1–1 Sofia Costoulas
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| Date | Sets | Games | Res. |
|---|---|---|---|
| 29/01/26 WTA Manila | 2-1 | 16-12 | W |
| 06/12/24 ITF W100 Dubai | 1-2 | 13-17 | L |
Last 10 matches played
Last matches of each player (sets and games). W = win, L = loss. Common opponents to both are in blue.
Tatiana Prozorova
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| Date | Opponent | Sets | Games | Res. |
|---|---|---|---|---|
| 25/08 | Kristina Liutova US Open Women · Hard |
1-2 | 12-16 | L |
| 04/08 | Anastasia Zakharova W100 Landisville |
0-2 | 5-12 | L |
| 30/07 | Peyton Stearns WTA Memphis · Hard |
0-2 | 3-12 | L |
| 28/07 | Solana Sierra WTA Memphis · Hard |
2-1 | 17-10 | W |
| 27/07 | Kennedy Drenser-Hagmann WTA Memphis · Hard |
2-1 | 16-10 | W |
| 17/07 | Anastasia Zakharova WTA Istanbul · Hard |
0-2 | 6-12 | L |
| 16/07 | Daria Khomutsianskaya WTA Istanbul · Hard |
2-0 | 12-7 | W |
| 13/07 | Zhuoxuan Bai WTA Istanbul · Hard |
2-0 | 12-4 | W |
| 24/06 | Heather Watson Wimbledon Women · Grass |
1-2 | 15-18 | L |
| 23/06 | Carole Monnet Wimbledon Women · Grass |
2-0 | 12-6 | W |
Sofia Costoulas
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| Date | Opponent | Sets | Games | Res. |
|---|---|---|---|---|
| 08/09 | Hina Inoue W50 Guiyang |
1-2 | 13-18 | L |
| 04/09 | Zhuoxuan Bai W75 Tianjin |
1-2 | 10-13 | L |
| 03/09 | Kristiana Sidorova W75 Tianjin |
2-0 | 12-3 | W |
| 02/09 | Shiyu Ye W75 Tianjin |
2-0 | 13-9 | W |
| 27/08 | Elvina Kalieva US Open Women · Hard |
1-2 | 13-15 | L |
| 26/08 | Jennifer Ruggeri US Open Women · Hard |
2-0 | 13-9 | W |
| 14/08 | Matilde Jorge W35 Vigo |
0-2 | 6-13 | L |
| 13/08 | Sofia Camila Rojas W35 Vigo |
2-0 | 12-6 | W |
| 12/08 | Eva Alvarez Sande W35 Vigo |
2-0 | 12-2 | W |
| 04/08 | Gabriela Knutson WTA Warsaw · Hard |
0-2 | 6-12 | L |
Frequently asked questions
Who is the favourite in Tatiana Prozorova vs Sofia Costoulas?
Our model gives 55% to Tatiana Prozorova, using surface Elo on hard.
What is the prediction based on?
On an Elo model by surface (hard) adjusted for opponent quality, compared with the market odds.

