Stefan Kozlov vs Jason Murray Kubler Head-to-Head Stats, Results & Performance Comparison
Wojtek Kolan
HEAD TO HEAD
S. Kozlov vs J. Murray Kubler
Stefan Kozlov
USA
w
w
w
w
l
w
l
l
w
l
2
Win
3
Played
1
Win
27
Age
32
6'0" (183 cm)
Height
5'10" (178 cm)
448
C. Rank
190
103
Best Rank
63
0
Total Titles
0
0
YTD Titles
0
$372.0K
Career Money
$1.3M
Right-Handed
Plays
Right-Handed
Jason Murray Kubler
AUS
w
w
w
l
w
w
l
w
l
l
2
Win
3
Played
1
Win
27
Age
32
6'0" (183 cm)
Height
5'10" (178 cm)
448
C. Rank
190
103
Best Rank
63
0
Total Titles
0
0
YTD Titles
0
$372.0K
Career Money
$1.3M
Right-Handed
Plays
Right-Handed
Head-to-head: Kozlov 2 - 1 Kubler
They have played 6 sets in total, with Stefan Kozlov winning 4 and Jason Murray Kubler winning 2. The last match between Stefan Kozlov and Jason Murray Kubler was at the Charlottesville Challenger, 03-11-2021, Round: R2, Surface: I.hard, with Stefan Kozlov getting the victory 6-3 6-1.
| Players | Head To Head Match Wins |
|---|---|
| Kozlov | 2 |
| Kubler | 1 |
Last 3 H2H Matches:
(R2) Charlottesville Challenger(11-03-21)
Stefan Kozlov
6
6
Jason Murray Kubler
3
1
(R2) Columbus Challenger(09-23-21)
Stefan Kozlov
6
7
Jason Murray Kubler
2
5
(R3) Winnetka Challenger(07-11-19)
Jason Murray Kubler
6
6
Stefan Kozlov
2
3
S. Kozlov vs J. M. Kubler H2H Profile
| Stats | ||
|---|---|---|
| $371,951 | Career Prize Money | $1,257,590 |
| 56.71% (338-258) | Career Total W/L | 67.42% (449-217) |
| 0 | Hard | 1 |
| 2 | Indoor | 0 |
| 10 | Titles | 25 |
| 2 | Total H2H Matches | 1 |
| 0% (0-0) | YTD Win/Loss | 0% (0-0) |
S. Kozlov vs J. M. Kubler Match Preview:
- Second serve performance recent form: In recent form (last 6 months), Stefan Kozlov has won 44.22% of points on their second serve, while Jason Murray Kubler has won 43.55%. 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 49.28% of their opponent's second serve points, while Jason Murray Kubler has won 46.40%. The same stats for first serve returns are 31.40% and 21.86% respectively and this has a high correlation to pick who is favored in this H2H matchup.
- Under pressure analysis: Stefan Kozlov has saved 49.71% of breakpoints in recent form, whereas Jason Murray Kubler has saved 52.49% which is a useful statistic for in-game betting predictions.
- Performance overview: Over the last year Stefan Kozlov has won 65.63% of matches played (W/L 21/11), with Jason Murray Kubler winning 76.36% (W/L 42/13) 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 80/47), and worse career win % on Grass, winning 38% (W/L 15/24). Jason Murray Kubler has their best career surface win % on Clay, winning 63% (W/L 249/106), and worse career win % on I.hard, winning 38% (W/L 6/10).
- Player level: In the last year, Stefan Kozlov has played most of their matches on the Challengers/ITF tournaments > $10K, winning 62.50% of matches (W/L 15/9), where as Jason Murray Kubler has played most of their matches on the Futures/Satellites/ITF tournaments $10K, winning 86.21% of matches (W/L 25/4). 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 Jason Murray Kubler being victorious 1 times. They have played 6 sets in total, with Stefan Kozlov winning 4 and Jason Murray Kubler winning 2.
- The last match between Stefan Kozlov and Jason Murray Kubler was at the Charlottesville Challenger, 03-11-2021, Round: R2, Surface: I.hard, with Stefan Kozlov getting the victory 6-3 6-1.
- Head to head match duration: In past head to head matches, the average match time between these players has been 1:26:16.
- Opponent quality stats: Over the last 12 months, Stefan Kozlov has played against opponents with an average rank of 403.94 while Jason Murray Kubler has played against players with an average rank of 405.49.
- 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 Jason Murray Kubler has won 46% in all matches played on tour.
- Break point conversion: In recent form, Stefan Kozlov has converted 37.21% of breakpoint opportunities, and Jason Murray Kubler has converted 32.56% 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 Jason Murray Kubler Editorial Preview By TennisTipster88.
S. Kozlov vs J. M. Kubler H2H Stats Used In Our Predictions
| Stats | ||
|---|---|---|
| 2 | H2H Matches Won | 1 |
| 4 | Sets Won | 2 |
| 30 | Games Won | 23 |
| 9 | Aces (Total) | 6 |
| 11 | Total Double Faults | 8 |
| 1:26:16 | Average Match Time | 1:26:16 |
| 66% (107/163) | 1st Serve % | 64% (114/177) |
| 69% (74/107) | 1st Serve Win % | 61% (70/114) |
| 45% (25/56) | 2nd Serve Win % | 41% (26/63) |
| 48% (11/23) | Break Pts Won % | 47% (8/17) |
| 46% (81/177) | Return Points Win % | 39% (64/163) |
| 67% (2/3) | Best‑of‑3 Win % | 33% (1/3) |
| 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 48%, Kubler 52%.
Opp 2nd Serve Pts Won: Kozlov 55%, Kubler 53%.
Break Points Saved %: Kozlov 59%, Kubler 65%.
S. Kozlov Recent Matches Played
| OPPONENT | RESULT | SCORE | H2H | |
|---|---|---|---|---|
| Chicago Challenger - 04-08-2025 | ||||
Q3  Tsung-Hao HuangT. Huang | L | 1-6 7-5 6-2 | ||
Q1  Ramkumar RamanathanR. Ramanathan | W | 6-1 6-7(4) 5-3 ret. | ||
 Newport Challenger - 07-07-2025 | ||||
R1 Mitchell KruegerM. Krueger | L | 6-1 3-6 6-1 | ||
| Tyler Challenger - 02-06-2025 | ||||
Q3  Alvin Nicholas TudoricaA. Nicholas | L | 7-5 6-3 | ||
Q1 Daniel MilavskyD. Milavsky | W | 6-3 6-7(7) 6-3 | ||
J. M. Kubler Recent Matches Played
| OPPONENT | RESULT | SCORE | H2H | |
|---|---|---|---|---|
| Jinan Challenger - 06-10-2025 | ||||
Q1  Kasidit SamrejK. Samrej | L | 6-4 7-6(5) | ||
| Shanghai Rolex Masters - Shanghai - 29-09-2025 | ||||
Q3  Yannick HanfmannY. Hanfmann | L | 6-2 6-3 | ||
Q1  Chak Lam Coleman WongC. Lam | W | 7-6(4) 6-3 | ||
| U.S. Open - New York - 25-08-2025 | ||||
Q3  Dino PrizmicD. Prizmic | L | 6-3 4-6 6-1 | ||
Q2  Kyrian JacquetK. Jacquet | W | 6-4 6-2 | ||
S. Kozlov vs J. M. Kubler Stats Breakdown Vs All H2H Opponents
| Stats | ||
|---|---|---|
| 56.71% (338/258) | YTD Win/Loss | 67.42% (449/217) |
| 53.99% (758/646) | Sets Win/Loss | 64.22% (996/555) |
| 51.48% (6727/6339) | Games Win/Loss | 55.31% (8067/6518) |
| 55.33% (166/134) | Hard Win/Loss | 65.98% (161/83) |
| 59.23% (77/53) | Clay Win/Loss | 70.14% (249/106) |
| 62.99% (80/47) | Indoor Hard W/L | 37.50% (6/10) |
| 38.46% (15/24) | Grass Win/Loss | 64.71% (33/18) |
| 0.22 | Aces Per Game | 0.31 |
| 1430 | Aces Total | 2183 |
| 0.33 | Double Faults Per Game | 0.26 |
| 2102 | Total Double Faults | 1846 |
| 1:35:5 | Average Match Time | 1st Match |
| 562.71 | Average Opponent Rank | 515.5 |
| 61% (22789/37267) | 1st Serve % | 61% (19427/31645) |
| 66% (15079/22789) | 1st Serve Win % | 72% (13895/19427) |
| 48% (6985/14478) | 2nd Serve Win % | 51% (6193/12217) |
| 42% (1766/4187) | Break Points Won % (Total) | 44% (1436/3270) |
| 42% (15694/37759) | Return Points Win % | 40% (12825/31926) |
| 31.03% (9/20) | Slam W/L | 51.92% (27/25) |
| 23.53% (4/13) | Masters W/L | 38.46% (5/8) |
| 0% (0/0) | Cups W/L | 50.00% (1/1) |
| 38.81% (26/41) | Main Tour W/L | 47.06% (24/27) |
| 58.06% (198/143) | Challenger W/L | 66.94% (166/82) |
| 71.13% (101/41) | Futures W/L | 75.33% (226/74) |
| 57% (330/578) | Best of 3 Sets Win % | 69% (430/625) |
| 45% (5/11) | Best of 5 Sets Win % | 48% (15/31) |
| 48% (68/143) | Tiebreaks Win % (Total) | 55% (113/205) |
| 61% (127/207) | Deciding Set Win % | 57% (107/187) |
| 87% (310/270) | 1st Set Won, Won Match | 90% (428/387) |
| 12% (310/38) | 1st Set Won, Lost Match | 9% (428/38) |
| 24% (286/68) | 1st Set Lost, Won Match | 26% (238/61) |
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