ATP · Head to Head
Stefan Kozlov vs Murphy Cassone
10
In short
Stefan Kozlov leads their head-to-head 1–0. Most recent meeting: R32 – Sioux Falls Challenger 2026, won by Stefan Kozlov (4-6 6-3 3-0 ret.).
Head-to-head in numbers
Wins by category and stats from the scores.
| Stefan Kozlov | — | Murphy Cassone |
|---|---|---|
| 1 | Challenger 100 | 0 |
| 1 | Sets won | 1 |
| 0 | Tie-breaks won | 0 |
| 0 | Deciding sets won | 0 |
| 0 | Retirements | 1 |
All meetings
| Year | Tournament | Round | Winner | Score |
|---|---|---|---|---|
| 2026 | Sioux Falls Challenger · Challenger 100 | R32 | Stefan Kozlov | 4-6 6-3 3-0 ret. |
Based on tournaments synced by youaretennis.com: the history grows over time.
Comparison
| Stefan Kozlov | — | Murphy Cassone |
|---|---|---|
| 284 | Ranking | 282 |
| 195 | Points | 196 |
| 28.7 | Age | 24.2 |
 United States | Country | United States |
| — | 2025 record | 0-1 |
| 0 | 2025 titles | 0 |
| 0 | Titles 2021-2025 | 0 |
Records and titles: Grand Slams, Masters 1000, ATP 500 and 250 (no ATP Finals or Challengers).
Recent form
The last 5 matches played.
Stefan Kozlov
- L
vs Max Hans Rehberg · 7-5 6-4
Sioux Falls Challenger · Round of 16 · 2026
- W
vs Murphy Cassone · 4-6 6-3 3-0 ret.
Sioux Falls Challenger · R32 · 2026
- L
vs Mitchell Krueger · 6-2 3-6 6-3
Columbus Challenger · Round of 16 · 2026
- W
vs James Kent Trotter · 6-3 6-2
Columbus Challenger · R32 · 2026
- L
vs Colton Smith · 6-4 6-2
San Diego 2 Challenger · R32 · 2026
Murphy Cassone
- L
vs Stefan Kozlov · 4-6 6-3 3-0 ret.
Sioux Falls Challenger · R32 · 2026
- L
vs Kenta Miyoshi · 6-4 7-6(0)
Fort Worth Challenger · R32 · 2026
- L
vs Harold Mayot · 5-7 6-2 4-2 ret.
St. Tropez Challenger · Semifinal · 2026
- W
vs Daniel Masur · 6-7(4) 7-6(12) 6-4
St. Tropez Challenger · Quarterfinal · 2026
- W
vs Billy Harris · 7-6(3) 6-4
St. Tropez Challenger · Round of 16 · 2026