Stefan Kozlov leads 3 to 1 over 4 singles meetings since 2024. Last meeting on 04/11/2026 at Charlottesville Challenger.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 04/11/2026 | Charlottesville Challenger | Round 2 | indoor hard | Kozlov | 6-2 6-2 |
| 27/10/2026 | Sioux Falls Challenger | Round 1 | indoor hard | Kozlov | 4-6 6-3 3-0 ret. |
| 16/11/2025 | Champaign Challenger | Final | indoor hard | Kozlov | 7-6(3) 7-5 |
| 25/10/2024 | Sioux Falls Challenger | Round 2 | indoor hard | Cassone | w/o |
| indoor hard | Kozlov 3 - 1 Cassone |
| 2026 | Kozlov 2 - 0 Cassone |
| 2025 | Kozlov 1 - 0 Cassone |
| 2024 | Kozlov 0 - 1 Cassone |
149 wins, 114 losses since 2021 (56.7%).
Last matches: V V V V V
116 wins, 90 losses since 2021 (56.3%).
Last matches: D V D D D
Stefan Kozlov leads 3 to 1 over 4 singles meetings since 2024.
On 04/11/2026, at Charlottesville Challenger (Round 2): Stefan Kozlov won 6-2 6-2.