Tennis · Challenger Liberec · 27/07, 14:00
Prediction: Zdenek Kolar vs Jan Kumstat
Prediction summary
Winner
Zdenek Kolar
Jan Kumstat
Estimated games
21.6
Recent form · 10 last
Zdenek Kolar
5-5 (W-L)
Jan Kumstat
6-4 (W-L)
Our model (Elo) vs Market
Rating Elo · Zdenek Kolar 1441 · Jan Kumstat 1530
| Zdenek Kolar | Jan Kumstat | |
|---|---|---|
| Our model | 37% | 63% |
| Market | 51% | 49% |
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 Jan Kumstat (rating 1441 vs 1530).
- Jan Kumstat dominates on serve: 8.3 aces and 50.8% break avg.
- Jan Kumstat is in better form: 60% recent wins.
Statistics
| Zdenek Kolar | Jan Kumstat | |
|---|---|---|
| Win % | 30% | 60% |
| Win % · Clay | 33% (9) | 63% (8) |
| Sets (G-P) | 0.8-1.4 | 1.4-0.9 |
| Games (G-P) | 9.7-11.1 | 12-9.6 |
| Aces | 1.6 | 8.3 |
| Double faults | 3.6 | 2.3 |
| 1st serve % | 59.1% | 78.9% |
| Break % | 52.4% | 50.8% |
Estimated total games (ours)
21.6
Last 10 matches played
Last matches of each player (sets and games). W = win, L = loss. Common opponents to both are in blue.
Zdenek Kolar
Swipe the table sideways →
| Date | Opponent | Sets | Games | Res. |
|---|---|---|---|---|
| 20/07 | Thiago Seyboth Wild Challenger Zug · Clay |
0-2 | 5-12 | L |
| 14/07 | Juan Manuel Cerundolo ATP Gstaad · Clay |
1-2 | 13-16 | L |
| 09/07 | Taro Daniel Challenger Iasi · Clay |
0-2 | 7-12 | L |
| 06/07 | Stefan Palosi Challenger Iasi · Clay |
2-0 | 13-5 | W |
| 22/06 | Tom Gentzsch Wimbledon · Grass |
0-2 | 6-12 | L |
| 12/06 | Federico Cina Challenger Bratislava · Clay |
1-2 | 13-16 | L |
| 10/06 | Lukas Pokorny Challenger Bratislava · Clay |
2-0 | 12-8 | W |
| 09/06 | Jason Jung Challenger Bratislava · Clay |
2-0 | 12-4 | W |
| 01/06 | Lautaro Midon Challenger Prostejov · Clay |
0-2 | 6-13 | L |
| 27/05 | Sumit Nagal Challenger Chisinau · Clay |
0-2 | 10-13 | L |
Jan Kumstat
Swipe the table sideways →
| Date | Opponent | Sets | Games | Res. |
|---|---|---|---|---|
| 24/07 | Mathys Erhard M25 Ollersbach |
1-2 | 14-14 | L |
| 22/07 | Yuichiro Inui M25 Ollersbach |
2-0 | 12-6 | W |
| 18/07 | Tom Gentzsch Challenger Bunschoten · Clay |
0-2 | 9-13 | L |
| 17/07 | Thijs Boogaard Challenger Bunschoten · Clay |
2-0 | 12-2 | W |
| 16/07 | Florian Broska Challenger Bunschoten · Clay |
2-1 | 18-15 | W |
| 14/07 | Henri Squire Challenger Bunschoten · Clay |
2-0 | 12-4 | W |
| 13/07 | Mateus Alves Challenger Bunschoten · Clay |
2-0 | 12-6 | W |
| 12/07 | Leo Raquillet Challenger Bunschoten · Clay |
2-0 | 13-10 | W |
| 28/06 | Pavel Lagutin Challenger Troyes · Clay |
0-2 | 8-13 | L |
| 23/06 | Duje Markovina M25 Zagreb · ~Clay |
1-2 | 10-13 | L |
Frequently asked questions
Who is the favourite in Zdenek Kolar vs Jan Kumstat?
Our model gives 55% to Jan Kumstat, using surface Elo on clay.
What is the prediction based on?
On an Elo model by surface (clay) adjusted for opponent quality, compared with the market odds.

