── the model's take · from Elo · neutral court
Win probability
Not enough rating data for a read.
── who holds the edge · vs the rated field
Serve & return matchup
Serve
Jan Kumstatinsufficient data
Sumit Nagal
4th · poor
Return
Jan Kumstatinsufficient data
Sumit Nagal
41th · average
Model serve/return ratings as a percentile of the rated tour — the edge behind the win probability.
── head to head
Compare
—
model rank
#171
—
best surface
Clay
Right
hand
Right
CZE
country
IND
—
height
178cm
── model Elo over time
Trajectories
■ Jan Kumstat■ Sumit Nagal
── meetings by surface
Surface record
Clay2–0
── 2 meetings
Every meeting
| date | tournament | surf | rd | winner | score |
|---|---|---|---|---|---|
| 2026-08-17 | Prague CH | Clay | R16 | Jan Kumstat | 7-5 6-3 |
| 2026-07-27 | Liberec CH | Clay | SF | Jan Kumstat | 7-5 6-4 |