Stefan Kozlov vs Ethan Quinn Head-to-Head Stats, Results & Performance Comparison

Wojtek Kolan

Our Predictions

H2H Records Career Stats

HEAD TO HEAD
S. Kozlov vs E. Quinn

Stefan Kozlov

USA

1

Win

Played

1

Win

Age

6'0" (183 cm)

Height

304

C. Rank

103

Best Rank

Total Titles

YTD Titles

$372.0K

Career Money

$793.9K

Right-Handed

Plays

Ethan Quinn

USA

1

Win

Played

1

Win

Age

6'0" (183 cm)

Height

304

C. Rank

103

Best Rank

Total Titles

YTD Titles

$372.0K

Career Money

$793.9K

Right-Handed

Plays

Head-to-head: Kozlov 1 - 1 Quinn

They have played 6 sets in total, with Stefan Kozlov winning 3 and Ethan Quinn winning 3. The last match between Stefan Kozlov and Ethan Quinn was at the Sarasota Challenger, 10-04-2024, Round: R2, Surface: Clay, with Stefan Kozlov getting the victory 6-2 5-7 6-4.

Players	Head To Head Match Wins
Kozlov	1
Quinn	1

Last 2 H2H Matches:

(R2) Sarasota Challenger(04-10-24)

Stats

Stefan Kozlov

Ethan Quinn

(R2) Cleveland Challenger(02-01-24)

Stats

Ethan Quinn

Stefan Kozlov

S. Kozlov vs E. Quinn H2H Profile

S. Kozlov	Stats	E. Quinn
$371,951	Career Prize Money	$793,915
57.12% (345-259)	Career Total W/L	57.89% (132-96)
1	Clay	0
0	Indoor	1
11	Titles	4
1	Total H2H Matches	1
0% (0-0)	YTD Win/Loss	40.00% (12-18)

S. Kozlov vs E. Quinn Match Preview:

Second serve performance recent form: In recent form (last 6 months), Stefan Kozlov has won 44.83% of points on their second serve, while Ethan Quinn has won 49.64%. 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 47.29% of their opponent's second serve points, while Ethan Quinn has won 44.48%. The same stats for first serve returns are 30.52% and 22.90% 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 Ethan Quinn has saved 56.60% which is a useful statistic for in-game betting predictions.
Performance overview: Over the last year Stefan Kozlov has won 71.05% of matches played (W/L 27/11), with Ethan Quinn winning 61.11% (W/L 44/28) that gives us an overall head-to head prediction overview.
Best surface: Stefan Kozlov has their best career surface win % on I.hard, winning 64% (W/L 86/48), and worse career win % on Grass, winning 38% (W/L 15/24). Ethan Quinn has their best career surface win % on I.hard, winning 64% (W/L 31/20), and worse career win % on Clay, winning 53% (W/L 19/17).
Player level: In the last year, Stefan Kozlov has played most of their matches on the Challengers/ITF tournaments > $10K, winning 70.00% of matches (W/L 21/9), where as Ethan Quinn has played most of their matches on the Main tour, winning 58.62% of matches (W/L 17/12). 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 2 times before with Stefan Kozlov winning 1 times and Ethan Quinn being victorious 1 times. They have played 6 sets in total, with Stefan Kozlov winning 3 and Ethan Quinn winning 3.
The last match between Stefan Kozlov and Ethan Quinn was at the Sarasota Challenger, 10-04-2024, Round: R2, Surface: Clay, with Stefan Kozlov getting the victory 6-2 5-7 6-4.
Head to head match duration: In past head to head matches, the average match time between these players has been 2:37:22.
Deciding set H2H prediction: Stefan Kozlov and Ethan Quinn have played a deciding set 2 times, with Stefan Kozlov winning 1 times and Ethan Quinn 1 times. Very useful for predicting the outcome if this match goes the distance.
Opponent quality stats: Over the last 12 months, Stefan Kozlov has played against opponents with an average rank of 402.97 while Ethan Quinn has played against players with an average rank of 197.07.
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 69% of deciding sets over the last 12 months, while Ethan Quinn has won 67% in all matches played on tour.
Break point conversion: In recent form, Stefan Kozlov has converted 42.00% of breakpoint opportunities, and Ethan Quinn has converted 30.30% 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 Ethan Quinn Editorial Preview By TennisTipster88.

S. Kozlov vs E. Quinn H2H Stats Used In Our Predictions

S. Kozlov	Stats	E. Quinn
1	H2H Matches Won	1
3	Sets Won	3
28	Games Won	29
0	Aces (Total)	2
13	Total Double Faults	5
2:37:22	Average Match Time	2:37:22
62% (116/188)	1st Serve %	65% (116/179)
62% (72/116)	1st Serve Win %	69% (80/116)
57% (41/72)	2nd Serve Win %	49% (31/63)
41% (7/17)	Break Pts Won %	37% (7/19)
38% (68/179)	Return Points Win %	40% (75/188)
50% (1/2)	Best‑of‑3 Win %	50% (1/2)
50% (1/2)	Deciding Set Win %	50% (1/2)
100% (1/1)	1st Set Won, Won Match	100% (1/1)
0% (0/1)	1st Set Won, Lost Match	0% (0/1)
0% (0/1)	1st Set Lost, Won Match	0% (0/1)

Recent Performance Stats

S. Kozlov Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
Bogota Challenger - 24-11-2025
R1 Juan Bautista TorresJ. Bautista	W	6-0 4-6 6-3	Stats
Champaign Challenger - 10-11-2025
F Murphy CassoneM. Cassone	W	7-6(3) 7-5	Stats
SF Cedrik-Marcel StebeC. Stebe	W	6-0 4-0 ret.	Stats
QF Darwin BlanchD. Blanch	W	6-2 6-7(7) 6-3	Stats
R2 Tyler ZinkT. Zink	W	6-3 6-3	Stats

View All

E. Quinn Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
Rolex Paris Masters - Paris - 27-10-2025
R1 Karen KhachanovK. Khachanov	L	6-1 6-1	Stats
Q3 Botic Van De ZandschulpB. Van	W	6-3 7-6(4)	Stats
Q1 Ugo BlanchetU. Blanchet	W	6-2 6-3	Stats
Erste Bank Open - Vienna - 20-10-2025
Q3 Damir DzumhurD. Dzumhur	L	6-3 6-3	Stats
Q1 Vit KoprivaV. Kopriva	W	4-6 6-1 6-1	Stats

View All

S. Kozlov vs E. Quinn Stats Breakdown Vs All H2H Opponents

S. Kozlov	Stats	E. Quinn
57.12% (345/259)	YTD Win/Loss	57.89% (132/96)
54.28% (773/651)	Sets Win/Loss	54.74% (300/248)
51.62% (6835/6405)	Games Win/Loss	51.61% (2811/2636)
55.33% (166/134)	Hard Win/Loss	58.46% (76/54)
59.54% (78/53)	Clay Win/Loss	52.78% (19/17)
64.18% (86/48)	Indoor Hard W/L	60.78% (31/20)
38.46% (15/24)	Grass Win/Loss	54.55% (6/5)
0.23	Aces Per Game	0.45
1455	Aces Total	1198
0.33	Double Faults Per Game	0.24
2120	Total Double Faults	651
1:35:14	Average Match Time	1:48:18
564.87	Average Opponent Rank	217.34
61% (23111/37786)	1st Serve %	60% (10162/16932)
66% (15312/23111)	1st Serve Win %	71% (7236/10162)
48% (7095/14675)	2nd Serve Win %	51% (3433/6770)
42% (1801/4261)	Break Points Won % (Total)	40% (598/1496)
42% (15975/38351)	Return Points Win %	38% (6402/16834)
31.03% (9/20)	Slam W/L	56.25% (9/7)
23.53% (4/13)	Masters W/L	59.09% (13/9)
38.81% (26/41)	Main Tour W/L	48.72% (19/20)
58.74% (205/144)	Challenger W/L	54.84% (51/42)
71.13% (101/41)	Futures W/L	68.97% (40/18)
58% (337/586)	Best of 3 Sets Win %	58% (128/219)
45% (5/11)	Best of 5 Sets Win %	43% (3/7)
48% (70/146)	Tiebreaks Win % (Total)	59% (55/94)
62% (130/211)	Deciding Set Win %	59% (49/83)
87% (317/277)	1st Set Won, Won Match	86% (125/107)
12% (317/38)	1st Set Won, Lost Match	14% (125/18)
24% (287/68)	1st Set Lost, Won Match	23% (103/24)