Stefan Kozlov vs Ethan Quinn Head-to-Head Stats, Results & Performance Comparison
Wojtek Kolan
HEAD TO HEAD
S. Kozlov vs E. Quinn
Stefan Kozlov
USA
l
w
l
w
l
w
w
w
w
w
1
Win
2
Played
1
Win
27
Age
21
6'0" (183 cm)
Height
-
306
C. Rank
70
103
Best Rank
64
0
Total Titles
0
0
YTD Titles
0
$372.0K
Career Money
$793.9K
Right-Handed
Plays
-
Ethan Quinn
USA
w
l
l
w
l
w
l
w
w
l
1
Win
2
Played
1
Win
27
Age
21
6'0" (183 cm)
Height
-
306
C. Rank
70
103
Best Rank
64
0
Total Titles
0
0
YTD Titles
0
$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)
Stefan Kozlov
6
5
6
Ethan Quinn
2
7
4
(R2) Cleveland Challenger(02-01-24)
Ethan Quinn
6
4
6
Stefan Kozlov
2
6
3
S. Kozlov vs E. Quinn H2H Profile
S. Kozlov vs E. Quinn Match Preview:
- Second serve performance recent form: In recent form (last 6 months), Stefan Kozlov has won 44.27% 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 47.32% of their opponent's second serve points, while Ethan Quinn has won 44.48%. The same stats for first serve returns are 30.45% 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 49.67% 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 70.27% of matches played (W/L 26/11), 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 68.97% of matches (W/L 20/9), 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 401.92 while Ethan Quinn has played against players with an average rank of 139.15.
- 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 67% 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 40.82% 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
| Stats | ||
|---|---|---|
| 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
2nd Serve Win %: Kozlov 50%, Quinn 52%.
Opp 2nd Serve Pts Won: Kozlov 55%, Quinn 48%.
Break Points Saved %: Kozlov 58%, Quinn 62%.
S. Kozlov Recent Matches Played
| OPPONENT | RESULT | SCORE | H2H | |
|---|---|---|---|---|
| Champaign Challenger - 10-11-2025 | ||||
F Murphy CassoneM. Cassone | W | 7-6(3) 7-5 | ||
SF  Cedrik-Marcel StebeC. Stebe | W | 6-0 4-0 ret. | ||
QF Darwin BlanchD. Blanch | W | 6-2 6-7(7) 6-3 | ||
R2 Tyler ZinkT. Zink | W | 6-3 6-3 | ||
R1  Leo BorgL. Borg | W | 6-1 6-0 | ||
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 | ||
Q3  Botic Van De ZandschulpB. Van | W | 6-3 7-6(4) | ||
Q1  Ugo BlanchetU. Blanchet | W | 6-2 6-3 | ||
| Erste Bank Open - Vienna - 20-10-2025 | ||||
Q3  Damir DzumhurD. Dzumhur | L | 6-3 6-3 | ||
Q1  Vit KoprivaV. Kopriva | W | 4-6 6-1 6-1 | ||
S. Kozlov vs E. Quinn Stats Breakdown Vs All H2H Opponents
| Stats | ||
|---|---|---|
| 57.05% (344/259) | YTD Win/Loss | 57.89% (132/96) |
| 54.26% (771/650) | Sets Win/Loss | 54.74% (300/248) |
| 51.60% (6819/6396) | Games Win/Loss | 51.61% (2811/2636) |
| 55.33% (166/134) | Hard Win/Loss | 58.46% (76/54) |
| 59.23% (77/53) | 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 |
| 1452 | Aces Total | 1198 |
| 0.33 | Double Faults Per Game | 0.24 |
| 2118 | Total Double Faults | 651 |
| 1:35:11 | Average Match Time | 1:48:18 |
| 564.22 | Average Opponent Rank | 322.97 |
| 61% (23067/37710) | 1st Serve % | 60% (10162/16932) |
| 66% (15282/23067) | 1st Serve Win % | 71% (7236/10162) |
| 48% (7078/14643) | 2nd Serve Win % | 51% (3433/6770) |
| 42% (1795/4248) | Break Points Won % (Total) | 40% (598/1496) |
| 42% (15932/38264) | 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) |
| 58.62% (204/144) | Challenger W/L | 54.84% (51/42) |
| 71.13% (101/41) | Futures W/L | 68.97% (40/18) |
| 57% (336/585) | 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) |
| 61% (129/210) | Deciding Set Win % | 59% (49/83) |
| 87% (316/276) | 1st Set Won, Won Match | 86% (125/107) |
| 12% (316/38) | 1st Set Won, Lost Match | 14% (125/18) |
| 24% (287/68) | 1st Set Lost, Won Match | 23% (103/24) |
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