Tennis · WTA Washington · 30/07, 16:00
Prediction: Janice Tjen vs Anna Kalinskaya
Team pages: Janice Tjen · Anna Kalinskaya
Prediction summary
Winner
Janice Tjen
Anna Kalinskaya
Estimated games
23.7
Recent form · 10 last
Janice Tjen
4-6 (W-L)
Anna Kalinskaya
7-3 (W-L)
Our model (Elo) vs Market
Rating Elo · Janice Tjen 1455 · Anna Kalinskaya 1537
| Janice Tjen | Anna Kalinskaya | |
|---|---|---|
| Our model | 38% | 62% |
| Market | 30% | 70% |
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 Anna Kalinskaya (rating 1455 vs 1537).
- Anna Kalinskaya is in better form: 70% recent wins.
- Note: Anna Kalinskaya makes many double faults (5/match).
Statistics
| Janice Tjen | Anna Kalinskaya | |
|---|---|---|
| Win % | 30% | 70% |
| Win % · Grass | 29% (7) | 60% (5) |
| Sets (G-P) | 0.9-1.5 | 1.5-0.9 |
| Games (G-P) | 9.9-12.6 | 12.5-11.6 |
| Aces | 2.7 | 3 |
| Double faults | 3 | 5 |
| 1st serve % | 65.2% | 65.1% |
| Break % | 24.6% | 53.4% |
Estimated total games (ours)
23.7
Last 10 matches played
Last matches of each player (sets and games). W = win, L = loss. Common opponents to both are in blue.
Janice Tjen
Swipe the table sideways →
| Date | Opponent | Sets | Games | Res. |
|---|---|---|---|---|
| 28/07 | Rebecca Sramkova WTA Washington · Hard |
2-0 | 12-6 | W |
| 01/07 | Daria Kasatkina Wimbledon Women · Grass |
1-2 | 12-18 | L |
| 29/06 | Leylah Annie Fernandez Wimbledon Women · Grass |
2-0 | 13-7 | W |
| 23/06 | Caty McNally WTA Eastbourne · Grass |
1-2 | 15-19 | L |
| 15/06 | Tatjana Maria WTA Nottingham · Grass |
0-2 | 5-12 | L |
| 09/06 | Greet Minnen WTA Hertogenbosch · Grass |
0-2 | 7-13 | L |
| 04/06 | Ashlyn Krueger WTA Birmingham · Grass |
0-2 | 4-12 | L |
| 02/06 | Nao Hibino WTA Birmingham · Grass |
2-1 | 15-12 | W |
| 26/05 | Emma Navarro French Open Women · Clay |
0-2 | 7-12 | L |
| 20/05 | Maria Camila Osorio WTA Rabat · Clay |
1-2 | 9-15 | L |
Anna Kalinskaya
Swipe the table sideways →
| Date | Opponent | Sets | Games | Res. |
|---|---|---|---|---|
| 28/07 | Daria Kasatkina WTA Washington · Hard |
2-0 | 12-5 | W |
| 03/07 | Belinda Bencic Wimbledon Women · Grass |
1-2 | 16-17 | L |
| 01/07 | Diane Parry Wimbledon Women · Grass |
2-1 | 16-16 | W |
| 29/06 | Magdalena Frech Wimbledon Women · Grass |
2-0 | 13-10 | W |
| 24/06 | Elena-Gabriela Ruse WTA Bad Homburg · Grass |
0-2 | 7-13 | L |
| 22/06 | Sinja Kraus WTA Bad Homburg · Grass |
2-0 | 12-5 | W |
| 03/06 | Maja Chwalinska French Open Women · Clay |
0-2 | 9-13 | L |
| 01/06 | Anastasia Potapova French Open Women · Clay |
2-1 | 15-16 | W |
| 30/05 | Maria Camila Osorio French Open Women · Clay |
2-1 | 12-11 | W |
| 28/05 | Alina Korneeva French Open Women · Clay |
2-0 | 13-10 | W |
Frequently asked questions
Who is the favourite in Janice Tjen vs Anna Kalinskaya?
Our model gives 66% to Anna Kalinskaya, using surface Elo on grass.
What is the prediction based on?
On an Elo model by surface (grass) adjusted for opponent quality, compared with the market odds.