Stefan Kozlov vs Jeff Wolf Head-to-Head Stats, Results & Performance Comparison

Wojtek Kolan

Our Predictions

H2H Records Career Stats

HEAD TO HEAD
S. Kozlov vs J. Wolf

Stefan Kozlov

USA

5

Win

Played

5

Win

Age

6'0" (183 cm)

Height

6'0" (183 cm)

458

C. Rank

783

103

Best Rank

Total Titles

YTD Titles

$372.0K

Career Money

$1.6M

Right-Handed

Plays

Right-Handed

Jeff Wolf

USA

5

Win

Played

5

Win

Age

6'0" (183 cm)

Height

6'0" (183 cm)

458

C. Rank

783

103

Best Rank

Total Titles

YTD Titles

$372.0K

Career Money

$1.6M

Right-Handed

Plays

Right-Handed

Head-to-head: Kozlov 5 - 5 Wolf

They have played 22 sets in total, with Stefan Kozlov winning 10 and Jeff Wolf winning 12. The last match between Jeff Wolf and Stefan Kozlov was at the Cleveland Challenger, 31-01-2025, Round: QF, Surface: I.hard, with Jeff Wolf getting the victory 6-1 6-3.

Players	Head To Head Match Wins
Kozlov	5
Wolf	5

Last 10 H2H Matches:

(QF) Cleveland Challenger(01-31-25)

Stats

Jeff Wolf

Stefan Kozlov

(QF) Bloomfield Hills Challenger(07-05-24)

Stats

Stefan Kozlov

Jeff Wolf

(R1) San Diego Open - San Diego(09-19-22)

Stats

Jeff Wolf

Stefan Kozlov

S. Kozlov vs J. Wolf H2H Profile

S. Kozlov	Stats	J. Wolf
$371,951	Career Prize Money	$1,640,225
56.76% (340-259)	Career Total W/L	56.84% (187-142)
2	Hard	2
3	Indoor	3
10	Titles	6
5	Total H2H Matches	5
0% (0-0)	YTD Win/Loss	0% (0-0)

S. Kozlov vs J. Wolf Match Preview:

Second serve performance recent form: In recent form (last 6 months), Stefan Kozlov has won 45.88% of points on their second serve, while Jeff Wolf has won 0%. There is a high correlation between this stat and match prediction accuracy.
Return game stats recent form: Return stats show Stefan Kozlov, in recent form, has won 48.95% of their opponent's second serve points, while Jeff Wolf has won 0%. The same stats for first serve returns are 29.69% and 0% respectively and this has a high correlation to pick who is favored in this H2H matchup.
Under pressure analysis: Stefan Kozlov has saved 50.00% of breakpoints in recent form, whereas Jeff Wolf has saved 0% which is a useful statistic for in-game betting predictions.
Performance overview: Over the last year Stefan Kozlov has won 66.67% of matches played (W/L 22/11), with Jeff Wolf winning 60.00% (W/L 6/4) that gives us an overall head-to head prediction overview.
Best surface: Stefan Kozlov has their best career surface win % on I.hard, winning 63% (W/L 82/48), and worse career win % on Grass, winning 38% (W/L 15/24). Jeff Wolf has their best career surface win % on I.hard, winning 63% (W/L 69/39), and worse career win % on Clay, winning 48% (W/L 20/22).
Player level: In the last year, Stefan Kozlov has played most of their matches on the Challengers/ITF tournaments > $10K, winning 64.00% of matches (W/L 16/9), where as Jeff Wolf has played most of their matches on the Challengers/ITF tournaments > $10K, winning 66.67% of matches (W/L 6/3). When comparing stats between players to predict the favorite, it is of course all relative to the event level they have been playing at.
Direct H2H matches: They have played 10 times before with Stefan Kozlov winning 5 times and Jeff Wolf being victorious 5 times. They have played 22 sets in total, with Stefan Kozlov winning 10 and Jeff Wolf winning 12.
The last match between Stefan Kozlov and Jeff Wolf was at the Cleveland Challenger, 31-01-2025, Round: QF, Surface: I.hard, with Jeff Wolf getting the victory 6-1 6-3.
Head to head match duration: In past head to head matches, the average match time between these players has been 1:38:13.
Opponent quality stats: Over the last 12 months, Stefan Kozlov has played against opponents with an average rank of 409 while Jeff Wolf has played against players with an average rank of 221.7.
Deciding set performance vs all players: If you are interested in live predictions and betting, if this match goes into a deciding set, Stefan Kozlov has won 64% of deciding sets over the last 12 months, while Jeff Wolf has won 33% in all matches played on tour.
Break point conversion: In recent form, Stefan Kozlov has converted 37.96% of breakpoint opportunities, and Jeff Wolf has converted 0% of their chances to break their opponents serve. A telling stat for in-game live betting tips when either player has a breakpoint opportunity.

Stefan Kozlov vs Jeff Wolf Editorial Preview By TennisTipster88.

S. Kozlov vs J. Wolf H2H Stats Used In Our Predictions

S. Kozlov	Stats	J. Wolf
5	H2H Matches Won	5
10	Sets Won	12
101	Games Won	101
25	Aces (Total)	37
26	Total Double Faults	30
1:38:13	Average Match Time	1:38:13
61% (379/625)	1st Serve %	59% (400/681)
63% (238/379)	1st Serve Win %	67% (266/400)
50% (124/246)	2nd Serve Win %	46% (128/281)
48% (34/71)	Break Pts Won %	45% (31/69)
42% (287/681)	Return Points Win %	42% (263/625)
50% (5/10)	Best‑of‑3 Win %	50% (5/10)
100% (2/2)	Deciding Set Win %	0% (0/2)
100% (4/4)	1st Set Won, Won Match	83% (5/6)
0% (0/4)	1st Set Won, Lost Match	17% (1/6)
17% (1/6)	1st Set Lost, Won Match	0% (0/4)

Recent Performance Stats

S. Kozlov Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
Champaign Challenger - 10-11-2025
R1 Leo BorgL. Borg	W	6-1 6-0	Stats
Knoxville Challenger - 03-11-2025
R2 Jay ClarkeJ. Clarke	L	6-2 2-6 6-3	Stats
R1 Dominique RollandD. Rolland	W	7-6(1) 2-6 6-1	Stats
Chicago Challenger - 04-08-2025
Q3 Tsung-Hao HuangT. Huang	L	1-6 7-5 6-2	Stats
Q1 Ramkumar RamanathanR. Ramanathan	W	6-1 6-7(4) 5-3 ret.	Stats

View All

J. Wolf Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
Delray Beach Open - Delray Beach - 10-02-2025
Q1 Tristan BoyerT. Boyer	L	2-1 ret.	Stats
Cleveland Challenger - 27-01-2025
SF Colton SmithC. Smith	L	7-6(7) 6-1	Stats
QF Stefan KozlovS. Kozlov	W	6-1 6-3	Stats
R2 Antoine GhibaudoA. Ghibaudo	W	7-6(11) 4-6 6-3	Stats
R1 Jenson BrooksbyJ. Brooksby	W	6-2 6-4	Stats

View All

S. Kozlov vs J. Wolf Stats Breakdown Vs All H2H Opponents

S. Kozlov	Stats	J. Wolf
56.76% (340/259)	YTD Win/Loss	56.84% (187/142)
54.04% (763/649)	Sets Win/Loss	55.04% (426/348)
51.52% (6765/6367)	Games Win/Loss	52.04% (3873/3569)
55.33% (166/134)	Hard Win/Loss	54.97% (94/77)
59.23% (77/53)	Clay Win/Loss	47.62% (20/22)
63.08% (82/48)	Indoor Hard W/L	63.89% (69/39)
38.46% (15/24)	Grass Win/Loss	50.00% (4/4)
0.23	Aces Per Game	0.64
1442	Aces Total	2343
0.33	Double Faults Per Game	0.3
2109	Total Double Faults	1076
1:35:9	Average Match Time	1:39:48
565.22	Average Opponent Rank	405.24
61% (22913/37464)	1st Serve %	57% (13226/23086)
66% (15166/22913)	1st Serve Win %	74% (9776/13226)
48% (7023/14551)	2nd Serve Win %	51% (5004/9860)
42% (1778/4208)	Break Points Won % (Total)	41% (870/2108)
42% (15788/37963)	Return Points Win %	38% (8866/23317)
31.03% (9/20)	Slam W/L	46.67% (14/16)
23.53% (4/13)	Masters W/L	47.73% (21/23)
38.81% (26/41)	Main Tour W/L	51.28% (40/38)
58.14% (200/144)	Challenger W/L	63.58% (103/59)
71.13% (101/41)	Futures W/L	60.00% (9/6)
57% (332/581)	Best of 3 Sets Win %	57% (175/307)
45% (5/11)	Best of 5 Sets Win %	50% (9/18)
48% (69/144)	Tiebreaks Win % (Total)	50% (55/109)
61% (128/209)	Deciding Set Win %	53% (50/95)
87% (312/272)	1st Set Won, Won Match	89% (176/156)
12% (312/38)	1st Set Won, Lost Match	11% (176/20)
24% (287/68)	1st Set Lost, Won Match	18% (153/28)