J
Jan Kumstat
CZE · Active 2022–2026
#611
Ranking
#611
Best Rank
8–12
Win–Loss
40.0%
6–4
Last 10
8–12
Last 20
Record by Surface
Clay
5–838.5%
Hard
3–442.9%
Career Averages
1st Serve %52.6%
1st Srv Pts Won68.7
2nd Srv Pts Won45.0
BP Saved %52.3%
BP Converted %38.6%
Return Pts Won37.9
Avg Aces4.9
Avg DFs3.2
Serve Rating228.6
Return Rating138.1
Career Splits
| W-L | Win% | SPW | RPW | DR | 1st% | BPS% | BPC% | |
|---|---|---|---|---|---|---|---|---|
| Surface | ||||||||
| Clay | 5–8 | 38.5% | 55.6% | 39.1% | 0.91 | 51.2% | 53.4% | 36.1% |
| Hard | 3–4 | 42.9% | 61.7% | 35.3% | 0.95 | 55.8% | 48.6% | 45.7% |
| Tournament Level | ||||||||
| Other | 8–12 | 40% | 57.5% | 37.9% | 0.93 | 52.6% | 52.3% | 38.6% |
| Format | ||||||||
| Best of 3 | 8–12 | 40% | 57.5% | 37.9% | 0.93 | 52.6% | 52.3% | 38.6% |