J J Wolf vs Stefan Kozlov — Cleveland CH Quarter-final

Cleveland CH · CHALLENGER · Quarter-final
USA
J J Wolf
[8]
#921ATP
27 yrs · 183 cm · Right-handed
Last 10
LWLLLLLLWW
2 — 0
Sets
Monday, 27 January 2025
hard
USA
Stefan Kozlov
#292ATP
1429ELO
1408Hard ELO
28 yrs · 183 cm · Right-handed
Last 10
LWLWWWLLWL

Umpiry Score

Pre-match
Wolf J.
4.9
Heavy underdogUmpiry ScorePartial · surface data limited
  • Recent retirement (−1.5)
Kozlov S.
6.4
Marginal edgeUmpiry ScorePartial · surface data limited
Form & Matchup
4.6
H2H
5.4
6.2
Surface form
5.8
Win streak
0.0
Fatigue & Travel
6.5
Minutes 14d
6.6
7.0
3-set count
7.0
Prev. match
6.0
Context
5.0
Defending pts
6.0

The Umpiry Score combines match-context factors — matchup, form, fatigue, travel and motivation — into a single 0–10 score, updated daily. Read how it works.

Wolf J.
662
Kozlov S.
130

Head to head

4–4
DateTournamentRoundSurfaceWinnerScore
2024-07-01Bloomfield Hills CHQFhardStefan Kozlov6-4 6-4
2022-09-19San DiegoR32hardJ J Wolf6-2 7-6(6)
2021-11-15Champaign CHSFhardStefan Kozlov6-2 6-3
2021-11-01Charlottesville CHSFhardStefan Kozlov6-1 6-7(1) 6-0
2021-10-25Las Vegas CHFhardJ J Wolf6-4 6-4
2021-09-20Columbus CHSFhardStefan Kozlov2-6 6-3 7-5
2019-11-11Champaign-Urbana CHQFhardJ J Wolf6-2 6-2
2019-01-07Columbus CHR64hardJ J Wolf6-2 7-6(4)

Statistics

Recent form
Wolf J.Kozlov S.
56%1st serve in+4%60%
72%1st serve points won+6%66%
49%2nd serve points won49%
62%Service points won+3%59%
39%Return points won+2%41%
57%Break points saved+3%54%
6.3Aces / match+3.42.9
3.3Double faults / match+0.23.5

Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.

Draw

Final
Smith C.
Spizzirri E.[6]
6-46-766-3
Semi-finals
Smith C.
Wolf J.[8]
7-676-1
Spizzirri E.[6]
Zink T.
6-46-3
Quarter-finals
Zink T.
Cassone M.
6-747-617-5
Smith C.
Sell K.[7]
7-646-2
Wolf J.[8]
Kozlov S.
6-16-3
Spizzirri E.[6]
Trotter J.[4]
5-76-37-64
R16
Zink T.
Holt B.[5]
W/O
Kozlov S.
Bigun K.
6-26-3
Smith C.
Dostanic S.
6-46-4
Sell K.[7]
Kingsley C.
6-46-4
Wolf J.[8]
Ghibaudo A.
7-6114-66-3
Trotter J.[4]
Hilderbrand T.
6-736-26-4
Cassone M.
Aguilar J.
6-16-4
Spizzirri E.[6]
Mmoh M.
6-47-5
R32
Zink T.
Mayo A.
6-36-4
Sell K.[7]
Ayeni O.
6-37-65
Kingsley C.
Pinnington Jones J.
6-16-4
Dostanic S.
Seggerman R.
7-687-5
Wolf J.[8]
Brooksby J.
6-26-4
Aguilar J.
Ross J.
6-46-2
Holt B.[5]
Ivanovski K.
6-16-1
Ghibaudo A.
Mccormick T.
6-36-3
Smith C.
Quinn E.[3]
1-66-16-4
Bigun K.
Albot R.[2]
6-37-67
Cassone M.
Gomez F.[1]
7-656-4
Trotter J.[4]
Pieczonka F.
6-33-67-64
Hilderbrand T.
Ponwith N.
7-654-66-0
Mmoh M.
Rybakov A.
6-736-36-2
Spizzirri E.[6]
Escobedo E.
6-46-3
Kozlov S.
Braswell M.
4-66-36-4