Stefan Kozlov vs Thai Kwiatkowski Head-to-Head Stats, Results & Performance Comparison
Wojtek Kolan
HEAD TO HEAD
S. Kozlov vs T. Kwiatkowski
Stefan Kozlov
USA
w
l
w
w
w
w
w
w
w
l
2
Win
3
Played
1
Win
27
Age
30
6'0" (183 cm)
Height
6'2" (188 cm)
304
C. Rank
677
103
Best Rank
181
0
Total Titles
0
0
YTD Titles
0
$372.0K
Career Money
$94.0K
Right-Handed
Plays
Right-Handed
Thai Kwiatkowski
USA
l
l
l
l
w
l
l
l
l
l
2
Win
3
Played
1
Win
27
Age
30
6'0" (183 cm)
Height
6'2" (188 cm)
304
C. Rank
677
103
Best Rank
181
0
Total Titles
0
0
YTD Titles
0
$372.0K
Career Money
$94.0K
Right-Handed
Plays
Right-Handed
Head-to-head: Kozlov 2 - 1 Kwiatkowski
They have played 7 sets in total, with Stefan Kozlov winning 4 and Thai Kwiatkowski winning 3. The last match between Stefan Kozlov and Thai Kwiatkowski was at the Dallas Open - Dallas, 05-02-2023, Round: Q1, Surface: I.hard, with Stefan Kozlov getting the victory 6-3 6-4.
| Players | Head To Head Match Wins |
|---|---|
| Kozlov | 2 |
| Kwiatkowski | 1 |
Last 3 H2H Matches:
(Q1) Dallas Open - Dallas(02-05-23)
Stefan Kozlov
6
6
Thai Kwiatkowski
3
4
(R1) Little Rock Challenger(06-02-21)
Thai Kwiatkowski
6
6
Stefan Kozlov
2
1
(R1) Charlottesville Challenger(10-31-17)
Stefan Kozlov
6
3
6
Thai Kwiatkowski
1
6
3
S. Kozlov vs T. Kwiatkowski H2H Profile
| Stats | ||
|---|---|---|
| $371,951 | Career Prize Money | $94,010 |
| 57.10% (346-260) | Career Total W/L | 56.28% (233-181) |
| 0 | Hard | 1 |
| 2 | Indoor | 0 |
| 11 | Titles | 8 |
| 2 | Total H2H Matches | 1 |
| 0% (0-0) | YTD Win/Loss | 0% (0-0) |
S. Kozlov vs T. Kwiatkowski Match Preview:
- Second serve performance recent form: In recent form (last 6 months), Stefan Kozlov has won 46.08% of points on their second serve, while Thai Kwiatkowski has won 46.09%. 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 47.36% of their opponent's second serve points, while Thai Kwiatkowski has won 44.55%. The same stats for first serve returns are 29.00% and 24.24% respectively and this has a high correlation to pick who is favored in this H2H matchup.
- Under pressure analysis: Stefan Kozlov has saved 53.06% of breakpoints in recent form, whereas Thai Kwiatkowski has saved 66.67% which is a useful statistic for in-game betting predictions.
- Performance overview: Over the last year Stefan Kozlov has won 70.00% of matches played (W/L 28/12), with Thai Kwiatkowski winning 0% (W/L 0/4) that gives us an overall head-to head prediction overview.
- Best surface: Stefan Kozlov has their best career surface win % on I.hard, winning 64% (W/L 86/48), and worse career win % on Grass, winning 38% (W/L 15/24). Thai Kwiatkowski has their best career surface win % on Hard, winning 64% (W/L 152/101), and worse career win % on Grass, winning 0% (W/L 0/7).
- Player level: In the last year, Stefan Kozlov has played most of their matches on the Challengers/ITF tournaments > $10K, winning 68.75% of matches (W/L 22/10), where as Thai Kwiatkowski has played most of their matches on the Challengers/ITF tournaments > $10K, winning 0.00% of matches (W/L 0/2). 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 3 times before with Stefan Kozlov winning 2 times and Thai Kwiatkowski being victorious 1 times. They have played 7 sets in total, with Stefan Kozlov winning 4 and Thai Kwiatkowski winning 3.
- The last match between Stefan Kozlov and Thai Kwiatkowski was at the Dallas Open - Dallas, 05-02-2023, Round: Q1, Surface: I.hard, with Stefan Kozlov getting the victory 6-3 6-4.
- Head to head match duration: In past head to head matches, the average match time between these players has been 1:20:47.
- Opponent quality stats: Over the last 12 months, Stefan Kozlov has played against opponents with an average rank of 169.43 while Thai Kwiatkowski has played against players with an average rank of 346.75.
- 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 65% of deciding sets over the last 12 months, while Thai Kwiatkowski has won 0% in all matches played on tour.
- Break point conversion: In recent form, Stefan Kozlov has converted 44.59% of breakpoint opportunities, and Thai Kwiatkowski has converted 14.81% 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 Thai Kwiatkowski Editorial Preview By TennisTipster88.
S. Kozlov vs T. Kwiatkowski H2H Stats Used In Our Predictions
| Stats | ||
|---|---|---|
| 2 | H2H Matches Won | 1 |
| 4 | Sets Won | 3 |
| 30 | Games Won | 29 |
| 14 | Aces (Total) | 10 |
| 12 | Total Double Faults | 6 |
| 1:20:47 | Average Match Time | 1:20:47 |
| 71% (132/186) | 1st Serve % | 70% (118/169) |
| 65% (86/132) | 1st Serve Win % | 67% (79/118) |
| 46% (25/54) | 2nd Serve Win % | 49% (25/51) |
| 47% (7/15) | Break Pts Won % | 44% (8/18) |
| 38% (65/169) | Return Points Win % | 40% (75/186) |
| 67% (2/3) | Best‑of‑3 Win % | 33% (1/3) |
| 100% (1/1) | Deciding Set Win % | 0% (0/1) |
| 100% (2/2) | 1st Set Won, Won Match | 100% (1/1) |
| 0% (0/2) | 1st Set Won, Lost Match | 0% (0/1) |
| 0% (0/1) | 1st Set Lost, Won Match | 0% (0/2) |
Recent Performance Stats
2nd Serve Win %: Kozlov 49%, Kwiatkowski 46%.
Opp 2nd Serve Pts Won: Kozlov 54%, Kwiatkowski 45%.
Break Points Saved %: Kozlov 58%, Kwiatkowski 67%.
S. Kozlov Recent Matches Played
| OPPONENT | RESULT | SCORE | H2H | |
|---|---|---|---|---|
 Bogota Challenger - 24-11-2025 | ||||
QF  Juan Sebastian GomezJ. Sebastian | L | 4-6 6-4 7-5 | ||
R2  David Jorda SanchisD. Jorda | W | 6-4 6-4 | ||
R1  Juan Bautista TorresJ. Bautista | W | 6-0 4-6 6-3 | ||
| 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. | ||
T. Kwiatkowski Recent Matches Played
| OPPONENT | RESULT | SCORE | H2H | |
|---|---|---|---|---|
| Charlottesville Challenger - 27-10-2025 | ||||
R1 Patrick ZahrajP. Zahraj | L | 7-5 6-3 | ||
| Winston-Salem Challenger - 08-09-2025 | ||||
R1 Alex RybakovA. Rybakov | L | 7-6(3) 6-4 | ||
| Winston-Salem Open - Winston-Salem - 18-08-2025 | ||||
Q1 Karl PolingK. Poling | L | 3-6 7-5 6-3 | ||
| Citi Open - Washington - 21-07-2025 | ||||
Q1 Murphy CassoneM. Cassone | L | 6-2 6-4 | ||
| Winston-Salem Open - Winston-Salem - 19-08-2024 | ||||
Q3 Strong KirchheimerS. Kirchheimer | L | 6-3 6-4 | ||
S. Kozlov vs T. Kwiatkowski Stats Breakdown Vs All H2H Opponents
| Stats | ||
|---|---|---|
| 57.10% (346/260) | YTD Win/Loss | 56.28% (233/181) |
| 54.30% (776/653) | Sets Win/Loss | 56.08% (544/426) |
| 51.63% (6862/6430) | Games Win/Loss | 52.59% (4871/4392) |
| 55.33% (166/134) | Hard Win/Loss | 60.08% (152/101) |
| 59.40% (79/54) | Clay Win/Loss | 54.02% (47/40) |
| 64.18% (86/48) | Indoor Hard W/L | 50.75% (34/33) |
| 38.46% (15/24) | Grass Win/Loss | 0.00% (0/7) |
| 0.22 | Aces Per Game | 0.47 |
| 1458 | Aces Total | 2117 |
| 0.33 | Double Faults Per Game | 0.27 |
| 2125 | Total Double Faults | 1237 |
| 1:35:24 | Average Match Time | 1:27:18 |
| 213.03 | Average Opponent Rank | 522.62 |
| 61% (23211/37961) | 1st Serve % | 60% (15246/25604) |
| 66% (15381/23211) | 1st Serve Win % | 72% (10949/15246) |
| 48% (7129/14750) | 2nd Serve Win % | 50% (5130/10358) |
| 42% (1809/4280) | Break Points Won % (Total) | 41% (1080/2606) |
| 42% (16044/38519) | Return Points Win % | 39% (10391/26391) |
| 31.03% (9/20) | Slam W/L | 14.29% (2/12) |
| 23.53% (4/13) | Masters W/L | 20.00% (1/4) |
| 38.81% (26/41) | Main Tour W/L | 35.71% (10/18) |
| 58.69% (206/145) | Challenger W/L | 53.21% (116/102) |
| 71.13% (101/41) | Futures W/L | 69.80% (104/45) |
| 57% (338/588) | Best of 3 Sets Win % | 56% (230/408) |
| 45% (5/11) | Best of 5 Sets Win % | 33% (1/3) |
| 48% (70/146) | Tiebreaks Win % (Total) | 50% (71/142) |
| 61% (130/212) | Deciding Set Win % | 44% (62/140) |
| 87% (319/278) | 1st Set Won, Won Match | 79% (252/199) |
| 12% (319/39) | 1st Set Won, Lost Match | 21% (252/52) |
| 24% (287/68) | 1st Set Lost, Won Match | 20% (162/33) |
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