Stefan Kozlov vs Ryan Harrison Head-to-Head Stats, Results & Performance Comparison
Wojtek Kolan
HEAD TO HEAD
S. Kozlov vs R. Harrison
Stefan Kozlov
USA
l
w
l
w
l
w
w
w
w
w
3
Win
4
Played
1
Win
27
Age
33
6'0" (183 cm)
Height
6'1" (185 cm)
306
C. Rank
846
103
Best Rank
40
0
Total Titles
1
0
YTD Titles
0
$372.0K
Career Money
$2.3M
Right-Handed
Plays
Right-Handed
Ryan Harrison
USA
l
w
l
l
l
w
l
l
w
l
3
Win
4
Played
1
Win
27
Age
33
6'0" (183 cm)
Height
6'1" (185 cm)
306
C. Rank
846
103
Best Rank
40
0
Total Titles
1
0
YTD Titles
0
$372.0K
Career Money
$2.3M
Right-Handed
Plays
Right-Handed
Head-to-head: Kozlov 3 - 1 Harrison
They have played 10 sets in total, with Stefan Kozlov winning 6 and Ryan Harrison winning 4. The last match between Stefan Kozlov and Ryan Harrison was at the Cleveland Challenger, 02-02-2023, Round: R2, Surface: I.hard, with Stefan Kozlov getting the victory 6-4 6-4.
| Players | Head To Head Match Wins |
|---|---|
| Kozlov | 3 |
| Harrison | 1 |
Last 4 H2H Matches:
(R2) Cleveland Challenger(02-02-23)
Stefan Kozlov
6
6
Ryan Harrison
4
4
(SF) M15 Weston(07-04-21)
Stefan Kozlov
5
6
6
Ryan Harrison
7
3
3
(R1) Winnetka Challenger(07-07-15)
Ryan Harrison
6
6
Stefan Kozlov
4
4
S. Kozlov vs R. Harrison H2H Profile
| Stats | ||
|---|---|---|
| $371,951 | Career Prize Money | $2,312,315 |
| 57.05% (344-259) | Career Total W/L | 53.45% (356-310) |
| 1 | Clay | 0 |
| 1 | Hard | 1 |
| 1 | Indoor | 0 |
| 11 | Titles | 8 |
| 3 | Total H2H Matches | 1 |
| 0% (0-0) | YTD Win/Loss | 0% (0-0) |
S. Kozlov vs R. Harrison 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 Ryan Harrison 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 47.32% of their opponent's second serve points, while Ryan Harrison has won 0%. The same stats for first serve returns are 30.45% 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 49.67% of breakpoints in recent form, whereas Ryan Harrison has saved 0% 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 Ryan Harrison winning 0% (W/L 0/0) 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). Ryan Harrison has their best career surface win % on I.hard, winning 64% (W/L 60/48), and worse career win % on Grass, winning 44% (W/L 30/38).
- 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 Ryan Harrison has played most of their matches on the N/A, winning 0% of matches (W/L 0/0). 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 4 times before with Stefan Kozlov winning 3 times and Ryan Harrison being victorious 1 times. They have played 10 sets in total, with Stefan Kozlov winning 6 and Ryan Harrison winning 4.
- The last match between Stefan Kozlov and Ryan Harrison was at the Cleveland Challenger, 02-02-2023, Round: R2, Surface: I.hard, with Stefan Kozlov getting the victory 6-4 6-4.
- Head to head match duration: In past head to head matches, the average match time between these players has been 2:7:4.
- Opponent quality stats: Over the last 12 months, Stefan Kozlov has played against opponents with an average rank of 401.92 while Ryan Harrison has played against players with an average rank of 0.
- 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 Ryan Harrison has won 0% in all matches played on tour.
- Break point conversion: In recent form, Stefan Kozlov has converted 40.82% of breakpoint opportunities, and Ryan Harrison 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 Ryan Harrison Editorial Preview By TennisTipster88.
S. Kozlov vs R. Harrison H2H Stats Used In Our Predictions
| Stats | ||
|---|---|---|
| 3 | H2H Matches Won | 1 |
| 6 | Sets Won | 4 |
| 52 | Games Won | 43 |
| 7 | Aces (Total) | 20 |
| 17 | Total Double Faults | 18 |
| 2:7:4 | Average Match Time | 2:7:4 |
| 57% (176/310) | 1st Serve % | 58% (186/322) |
| 66% (117/176) | 1st Serve Win % | 63% (117/186) |
| 56% (75/134) | 2nd Serve Win % | 49% (66/136) |
| 39% (15/38) | Break Pts Won % | 41% (11/27) |
| 43% (139/322) | Return Points Win % | 38% (118/310) |
| 75% (3/4) | Best‑of‑3 Win % | 25% (1/4) |
| 100% (2/2) | Deciding Set Win % | 0% (0/2) |
| 100% (2/2) | 1st Set Won, Won Match | 50% (1/2) |
| 0% (0/2) | 1st Set Won, Lost Match | 50% (1/2) |
| 50% (1/2) | 1st Set Lost, Won Match | 0% (0/2) |
Recent Performance Stats
2nd Serve Win %: Kozlov 50%, Harrison 0%.
Opp 2nd Serve Pts Won: Kozlov 55%, Harrison 0%.
Break Points Saved %: Kozlov 58%, Harrison 0%.
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 | ||
R. Harrison Recent Matches Played
| OPPONENT | RESULT | SCORE | H2H | |
|---|---|---|---|---|
| Cary 1 Challenger - 07-08-2023 | ||||
Q3  Blake EllisB. Ellis | L | 6-3 3-6 6-4 | ||
Q1  Nicolas MejiaN. Mejia | W | 6-3 6-4 | ||
| Citi Open - Washington - 31-07-2023 | ||||
Q1 Zachary SvajdaZ. Svajda | L | 6-3 7-6(3) | ||
| Tallahassee Challenger - 17-04-2023 | ||||
Q3 Strong KirchheimerS. Kirchheimer | L | 6-2 4-4 ret. | ||
Q1 Kaylan BigunK. Bigun | W | 6-2 7-6(1) | ||
S. Kozlov vs R. Harrison Stats Breakdown Vs All H2H Opponents
| Stats | ||
|---|---|---|
| 57.05% (344/259) | YTD Win/Loss | 53.45% (356/310) |
| 54.26% (771/650) | Sets Win/Loss | 51.95% (839/776) |
| 51.60% (6819/6396) | Games Win/Loss | 50.66% (8062/7851) |
| 55.33% (166/134) | Hard Win/Loss | 55.62% (203/162) |
| 59.23% (77/53) | Clay Win/Loss | 50.41% (62/61) |
| 64.18% (86/48) | Indoor Hard W/L | 55.45% (61/49) |
| 38.46% (15/24) | Grass Win/Loss | 44.12% (30/38) |
| 0.23 | Aces Per Game | 0.49 |
| 1452 | Aces Total | 3826 |
| 0.33 | Double Faults Per Game | 0.24 |
| 2118 | Total Double Faults | 1873 |
| 1:35:11 | Average Match Time | 1:23:26 |
| 564.22 | Average Opponent Rank | 150.16 |
| 61% (23067/37710) | 1st Serve % | 60% (26656/44441) |
| 66% (15282/23067) | 1st Serve Win % | 72% (19135/26656) |
| 48% (7078/14643) | 2nd Serve Win % | 51% (9079/17785) |
| 42% (1795/4248) | Break Points Won % (Total) | 40% (1424/3562) |
| 42% (15932/38264) | Return Points Win % | 36% (15777/43233) |
| 31.03% (9/20) | Slam W/L | 44.74% (34/42) |
| 23.53% (4/13) | Masters W/L | 43.68% (38/49) |
| 0% (0/0) | Cups W/L | 50.00% (2/2) |
| 38.81% (26/41) | Main Tour W/L | 55.42% (138/111) |
| 58.62% (204/144) | Challenger W/L | 54.46% (110/92) |
| 71.13% (101/41) | Futures W/L | 72.34% (34/13) |
| 57% (336/585) | Best of 3 Sets Win % | 55% (332/601) |
| 45% (5/11) | Best of 5 Sets Win % | 34% (17/50) |
| 48% (70/146) | Tiebreaks Win % (Total) | 48% (136/282) |
| 61% (129/210) | Deciding Set Win % | 55% (127/229) |
| 87% (316/276) | 1st Set Won, Won Match | 85% (324/276) |
| 12% (316/38) | 1st Set Won, Lost Match | 14% (324/45) |
| 24% (287/68) | 1st Set Lost, Won Match | 23% (342/78) |
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