── 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
J J Wolf
16th · poor
Stefan Kozlovinsufficient data
Return
J J Wolf
39th · below avg
Stefan Kozlovinsufficient data
Model serve/return ratings as a percentile of the rated tour — the edge behind the win probability.
── head to head
Compare
#179
model rank
—
Hard
best surface
—
Right
hand
Right
USA
country
USA
183cm
height
183cm
── model Elo over time
Trajectories
■ J J Wolf■ Stefan Kozlov
── meetings by surface
Surface record
Hard5–5
── 10 meetings
Every meeting
| date | tournament | surf | rd | winner | score |
|---|---|---|---|---|---|
| 2025-01-27 | Cleveland CH | Hard | QF | J J Wolf | 6-1 6-3 |
| 2024-07-01 | Bloomfield Hills CH | Hard | QF | Stefan Kozlov | 6-4 6-4 |
| 2022-09-19 | San Diego | Hard | R32 | J J Wolf | 6-2 7-6(6) |
| 2021-11-15 | Champaign CH | Hard | SF | Stefan Kozlov | 6-2 6-3 |
| 2021-11-01 | Charlottesville CH | Hard | SF | Stefan Kozlov | 6-1 6-7(1) 6-0 |
| 2021-10-25 | Las Vegas CH | Hard | F | J J Wolf | 6-4 6-4 |
| 2021-09-20 | Columbus CH | Hard | SF | Stefan Kozlov | 2-6 6-3 7-5 |
| 2019-11-11 | Champaign-Urbana CH | Hard | QF | J J Wolf | 6-2 6-2 |
| 2019-01-07 | Columbus CH | Hard | R64 | J J Wolf | 6-2 7-6(4) |
| 2016-04-11 | USA F13 | Hard | R32 | Stefan Kozlov | 6-1 6-3 |