Tennis · WTA Guadalajara · 15/09, 22:00
Prediction: Sloane Stephens vs Janice Tjen
Team pages: Sloane Stephens · Janice Tjen
Prediction summary
Winner
Sloane Stephens
Janice Tjen
Estimated games
22
Recent form · 10 last
Sloane Stephens
6-4 (W-L)
Janice Tjen
5-5 (W-L)
Our model (Elo) vs Market
Rating Elo · Sloane Stephens 1529 · Janice Tjen 1484
| Sloane Stephens | Janice Tjen | |
|---|---|---|
| Our model | 56% | 44% |
| Market | 45% | 55% |
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.
Match keys
- Our model (surface Elo, opponent-adjusted) favours Sloane Stephens (rating 1529 vs 1484).
- Note: Janice Tjen makes many double faults (4/match).
Statistics
| Sloane Stephens | Janice Tjen | |
|---|---|---|
| Win % | 60% | 40% |
| Win % · Hard | 60% (10) | 44% (9) |
| Sets (G-P) | 1.3-0.9 | 1-1.4 |
| Games (G-P) | 10.7-9.9 | 11.5-13 |
| Aces | 1.1 | 4.8 |
| Double faults | 2 | 4 |
| 1st serve % | 62.4% | 67% |
| Break % | 42.9% | 28.9% |
Estimated total games (ours)
22
Last 10 matches played
Last matches of each player (sets and games). W = win, L = loss. Common opponents to both are in blue.
Sloane Stephens
Swipe the table sideways →
| Date | Opponent | Sets | Games | Res. |
|---|---|---|---|---|
| 14/09 | Carole Monnet WTA Guadalajara · Hard |
2-0 | 13-10 | W |
| 02/09 | Marta Kostyuk US Open Women · Hard |
0-2 | 6-13 | L |
| 31/08 | Clara Tauson US Open Women · Hard |
2-0 | 12-5 | W |
| 25/08 | Mananchaya Sawangkaew WTA Philadelphia · Hard |
1-2 | 10-16 | L |
| 18/08 | Marta Kostyuk WTA Cincinnati · Hard |
0-2 | 10-14 | L |
| 17/08 | Anastasia Potapova WTA Cincinnati · Hard |
2-0 | 12-6 | W |
| 15/08 | Sinja Kraus WTA Cincinnati · Hard |
2-0 | 13-8 | W |
| 05/08 | Belinda Bencic WTA Toronto · Hard |
0-2 | 4-12 | L |
| 04/08 | Solana Sierra WTA Toronto · Hard |
2-0 | 12-7 | W |
| 01/08 | Harriet Dart WTA Toronto · Hard |
2-1 | 15-8 | W |
Janice Tjen
Swipe the table sideways →
| Date | Opponent | Sets | Games | Res. |
|---|---|---|---|---|
| 13/09 | Darja Vidmanova WTA Guadalajara · Hard |
2-0 | 13-8 | W |
| 01/09 | Mirra Andreeva US Open Women · Hard |
0-2 | 4-12 | L |
| 26/08 | Yulia Starodubtsewa WTA Monterrey · Hard |
0-2 | 7-12 | L |
| 25/08 | Dayana Yastremska WTA Monterrey · Hard |
2-1 | 15-15 | W |
| 18/08 | Mirra Andreeva WTA Cincinnati · Hard |
0-2 | 7-13 | L |
| 16/08 | Viktorija Golubic WTA Cincinnati · Hard |
2-1 | 19-18 | W |
| 03/08 | Ludmilla Samsonova WTA Toronto · Hard |
0-2 | 11-14 | L |
| 30/07 | Anna Kalinskaya WTA Washington · Hard |
1-2 | 15-14 | L |
| 28/07 | Rebecca Sramkova WTA Washington · Hard |
2-0 | 12-6 | W |
| 01/07 | Daria Kasatkina Wimbledon Women · Grass |
1-2 | 12-18 | L |
Frequently asked questions
Who is the favourite in Sloane Stephens vs Janice Tjen?
Our model gives 50% to Sloane Stephens, 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.

