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Jeffrey vs Kozlov
John Wolf
Jeffrey
🇺🇸 · #219
No line
Final
0–2
20 games
Stefan
Kozlov
🇺🇸 · #294
No line
Bloomfield Hills Challenger
Challenger
Hard
QF
Final
S1
S2
🇺🇸
John Wolf Jeffrey
4
4
🇺🇸
Stefan Kozlov
6
6
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John Wolf Jeffrey
· #219
🇺🇸 · 27y · RH
· '26: 26–12
W
W
L
L
L
Moneyline
To win
No price yet
Game spread
—
No line yet
Total games
—
No line yet
Stefan Kozlov
· #294
🇺🇸 · 28y · RH
· '26: 23–24
L
L
L
W
L
Moneyline
To win
No price yet
Game spread
—
No line yet
Total games
—
No line yet
Pre-Match Lines
Match stats
Jeffrey
Kozlov
1
Aces
1
1
Double faults
3
52%
29/56
1st serve %
68%
41/60
72%
21/29
1st serve points won
66%
27/41
41%
11/27
2nd serve points won
53%
10/19
20%
1/5
Break points saved
71%
5/7
Head to Head
Level 5–5
Jeffrey
6-1
6-3
Kozlov
Jan 2025 ·
Cleveland Challenger · QF · Hard
Jeffrey
4-6
4-6
Kozlov
Jul 2024 ·
Bloomfield Hills Challenger · QF · Hard
Jeffrey
6-2
7-6(6)
Kozlov
Sep 2022 ·
San Diego · R32 · Hard
Jeffrey
2-6
3-6
Kozlov
Nov 2021 ·
Champaign Challenger · SF · Hard
Jeffrey
1-6
7-6(1)
Kozlov
Nov 2021 ·
Charlottesville Challenger · SF · Hard
Jeffrey
6-4
6-4
Kozlov
Oct 2021 ·
Las Vegas Challenger · Final · Hard
Jeffrey
6-2
3-6
5-7
Kozlov
Sep 2021 ·
Columbus Challenger · SF · Hard
Jeffrey
6-2
6-2
Kozlov
Nov 2019 ·
Champaign Challenger · QF · Hard
Jeffrey
6-2
7-6(4)
Kozlov
Jan 2019 ·
Columbus Challenger · 1st round · Hard
Jeffrey
1-6
3-6
Kozlov
Apr 2016 ·
USA F13 · 1st round · Hard
Recent Form
John Wolf Jeffrey
🇺🇸 · #219 · 27y · RH
· '26: 26–12
W
W
L
L
L
Profile ›
Columbus Challenger
Challenger
L
6-7(6)
3-6
vs D. Dietrich
9/29 · R32
San Diego 2 Challenger
Challenger
L
6-4
6-7(9)
1-6
vs D. Blanch
9/22 · R32
Tiburon Challenger
Challenger
L
2-6
2-6
vs M. Mmoh
9/19 · SF
W
7-6(5)
1-6
7-5
vs S. Gorzny
9/18 · QF
W
6-4
6-7(5)
6-4
vs B. Shick
9/16 · R16
View Full Stats
›
Stefan Kozlov
🇺🇸 · #294 · 28y · RH
· '26: 23–24
L
L
L
W
L
Profile ›
Columbus Challenger
Challenger
L
2-6
6-3
3-6
vs M. Krueger
10/1 · R16
W
6-3
6-2
vs J. Trotter
9/29 · R32
San Diego 2 Challenger
Challenger
L
4-6
2-6
vs C. Smith
9/22 · R32
Tiburon Challenger
Challenger
L
3-6
6-2
6-7(10)
vs D. Blanch
9/15 · R32
Brownsburg Challenger
Challenger
L
6-2
4-6
1-6
vs H. Wendelken
8/13 · R16
View Full Stats
›