Jan Kumstat and Zsombor Piros will play each other in the 2nd round of the Ostrava Challenger for the 1st time in their career. They are scheduled to compete on Thursday at 4:00 pm on CENTRE COURT. In this post, we analyze their head to head performance and prediction.
Prediction, odds and live streaming
The pick for Tennis Tonic is Zsombor Piros who should win in 2 sets.
As per the initial odds, Zsombor Piros is the pick to win this match.
Zsombor Piros -> 1.084
Jan Kumstat -> 6.55
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Prediction and head to head Jan Kumstat vs. Zsombor Piros
There is no head to head record between Jan Kumstat and Zsombor Piros since this will be the first time that they will fight against each other in the main tour.
Jan Kumstat
| Year | Total | Hard | Clay | I.hard | Grass | Carpet |
|---|---|---|---|---|---|---|
| 2025 | 7-9 | 2-3 | 5-5 | 0-0 | 0-0 | 0-1 |
| 2024 | 3-4 | 0-0 | 0-3 | 3-1 | 0-0 | 0-0 |
Currently unranked, Kumstat got to the 2nd round after beating Murphy Cassone 6-4 7-6(3).
In the 1st round, Kumstat had a good straight sets win against Cassone (6-4 7-63). During the match, Kumstat scored 81 points vs Cassone’s 71. Kumstat was quite aggressive to blast 24 winners.
Regarding the service games, Kumstat recorded 4 aces and he committed only 1 double fault. Overall, Jan Kumstat was pretty efficient on serve to win 71% (24/34) of his 1st serve and 56% (23/41) on the second serve. However, this didn’t prevent his to concede the serve 3 times. Kumstat broke Cassone 4 times after converting 40% of his break points (4/10).
Kumstat has a unfavourable win-loss record in the last 2 years having won 37% of his matches (6-10). 1-2 on clay in 2025. In connection with his performance on the same surface of this event, Kumstat has a compiled1-5 record in the last 2 years on clay.
The Czech has an overall 3-6 win-loss record in 2025, 1-2 on clay (See FULL STATS).
Previously in the Ostrava Challenger
Zsombor Piros
20 - 9win/loss
161
106
WWWWWWWWWW | Year | Total | Hard | Clay | I.hard | Grass | Carpet |
|---|---|---|---|---|---|---|
| 2025 | 29-9 | 3-3 | 20-4 | 6-2 | 0-0 | 0-0 |
| 2024 | 31-29 | 1-6 | 17-17 | 13-5 | 0-1 | 0-0 |
| 2023 | 48-29 | 3-2 | 35-18 | 5-7 | 5-2 | 0-0 |
| 2022 | 38-23 | 7-6 | 19-9 | 10-7 | 2-1 | 0-0 |
| 2021 | 47-16 | 3-2 | 31-9 | 13-5 | 0-0 | 0-0 |
Ranked no. 270, the Hungarian got to the 2nd round after defeating Dalibor Svrcina 6-3 6-1.
In the 1st round, Zsombor had a good straight sets win against Svrcina (6-3 6-1). During the match Piros scored 67 points vs Svrcina’s 44. Piros was exceptionally aggressive to blast 23 winners.
About the serving games, Piros struck 3 aces and he committed only 2 double faults. Overall, Zsombor Piros was exceptionally efficient on serve to win 72% (23/32) of his 1st serve and 61% (14/23) on the second serve. However, this didn’t prevent his to concede the serve once. The Hungarian broke Svrcina 5 times after converting 63% of his break points (5/8).
Piros’s best result of the year was getting to the final in the Oeiras 2 Challenger.
The Hungarian has an aggregate 20-9 win-loss record in 2025, 11-4 on clay (See FULL STATS).
Previously in the Ostrava Challenger
Previously, his best result was reaching the 3rd round in 2019. See his history.
H2H Performance in the tournament
Matches, sets, games and points
| Points | Kumstat | Piros |
|---|---|---|
| Match played | 1 | 1 |
| Tot Set | 2 | 2 |
| Tot Games | 23 | 16 |
| Pts | 81-71 | 67-44 |
| Total Points | 152 | 111 |
| Winners | 24 | 23 |
| %Winners | 30% | 34% |
Both Kumstat and Piros played 1 match. Both players have not dropped a single set in this event so far. Talking about their workload, Kumstat and Piros have played the same amount of sets 2. However, Kumstat played 7 games more than Piros. Kumstat scored 24 winners (30% of the total points). On the other side, Zsombor recorded 23 winners (34%).
Serve Performance
| Serve | Kumstat | Piros |
|---|---|---|
| Aces | 4 | 3 |
| Avg per match | 4 | 3 |
| 1st in | 34/75 | 32/55 |
| %1st in | 45% | 58% |
| 1st pts | 24/34 | 23/32 |
| %1st pts | 71% | 72% |
| 2nd pts | 23/41 | 14/23 |
| %2nd pts | 56% | 61% |
Kumstat scored 4 aces . Piros made 3 aces . Kumstat won 71% points behind his first serve. He was rock solid on his second serve to win 56% of the points. On the other side, Piros won 72% of the points behind his first serve. He had a solid display on his second serve to win 61% of the points.
How they played the important points
| Breaks | Kumstat | Piros |
|---|---|---|
| Won | 4 | 5 |
| Converted | 4/10 | 5/8 |
| % Converted | 40% | 63% |
| Conceded | 8 | 4 |
| Saved | 5 | 3 |
| % Saved | 63% | 75% |
| Times Broken | 3 | 1 |
Jan broke his opponent 4 times with a 40% conversion rate. Kumstat dropped his serve 3 times and he saved 63% of the break points that he conceded. Piros broke his opponent 5 times with a 63% conversion rate. Piros conceded his serve once and he saved 75% of the break points that he conceded.
| Kumstat | |||
| R1 Cassone |
Total | ||
|---|---|---|---|
| Score | 6-4 7-63 | ||
| Tot Set | 2 | 2 | |
| Tot Games | 23 | 23 | |
| pts | 81-71 | 81-71 | |
| Total points | 152 | 152 | |
| Winners | 24 | 24 | |
| %Winners | 30% | 30% | |
| SERVE | |||
| Aces | 4 | 4 | |
| Double Faults | 1 | 1 | |
| 1st in | 34/75 | 34/75 | |
| % 1st in | 45% | 45% | |
| 1st pts | 24/34 | 24/34 | |
| % 1st pts | 71% | 71% | |
| 2nd pts | 23/41 | 23/41 | |
| % 2nd pts | 56% | 56% | |
| Breaks | |||
| Won | 4 | 4 | |
| Converted | 4/10 | 4/10 | |
| Converted % | 40% | 40% | |
| Conceded | 8 | 8 | |
| Saved | 5/8 | 5 | |
| Saved % | 63% | 63% | |
| Times Broken | 3 | 3 | |
| Piros | |||
| R1 Svrcina |
Total | ||
|---|---|---|---|
| Score | 6-3 6-1 | ||
| Tot Set | 2 | 2 | |
| Tot Games | 16 | 16 | |
| pts | 67-44 | 67-44 | |
| Total points | 111 | 111 | |
| Winners | 23 | 23 | |
| %Winners | 34% | 34% | |
| SERVE | |||
| Aces | 3 | 3 | |
| Double Faults | 2 | 2 | |
| 1st in | 32/55 | 32/55 | |
| % 1st in | 58% | 58% | |
| 1st pts | 23/32 | 23/32 | |
| % 1st pts | 72% | 72% | |
| 2nd pts | 14/23 | 14/23 | |
| % 2nd pts | 61% | 61% | |
| Breaks | |||
| Won | 5 | 5 | |
| Converted | 5/8 | 5/8 | |
| Converted % | 63% | 63% | |
| Conceded | 4 | 4 | |
| Saved | 3/4 | 3 | |
| Saved % | 75% | 75% | |
| Times Broken | 1 | 1 | |
Head 2 Head
LWWLWWLWLL
WWWWWWWWWW Tennis Scores in Ostrava Challenger
- Petr BrunclikBrunclik – Aslan KaratsevKaratsev (6-74 6-3 6-3) – Stats, scores, rankings
- Oriol Roca BatallaRoca Batalla – Lukas KleinKlein (6-4 5-7 7-63) – Stats, scores, rankings
- Henri SquireSquire – Vitaliy SachkoSachko (7-5 6-2) – Stats, scores, rankings
- Gauthier OnclinOnclin – Edas ButvilasButvilas (5-7 6-2 6-2) – Stats, scores, rankings
Upcoming matches in the draw
- Daniel EvansEvans – Hady HabibHabib (0-0) – H2H and prediction
- Vit KoprivaKopriva – Filip Cristian JianuCristian Jianu (0-0) – H2H and prediction
- Henri SquireSquire – Oriol Roca BatallaRoca Batalla (1-0) – H2H and prediction
- Gauthier OnclinOnclin – (0-0) – H2H and prediction
