Billy Harris leads 3 to 1 over 4 singles meetings since 2024. Last meeting on 11/11/2025 at Lyon Challenger.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 11/11/2025 | Lyon Challenger | Round 1 | indoor hard | Kukushkin | 7-6(2) 7-5 |
| 20/08/2025 | U.S. Open - New York | Qualifying 2 | hard | Harris | 6-7(5) 6-3 6-2 |
| 15/06/2024 | Nottingham 2 Challenger | Quarter-final | grass | Harris | 6-1 2-1 ret. |
| 07/06/2024 | Surbiton Challenger | Quarter-final | grass | Harris | 5-7 7-6(5) 7-6(4) |
| indoor hard | Kukushkin 1 - 0 Harris |
| hard | Kukushkin 0 - 1 Harris |
| grass | Kukushkin 0 - 2 Harris |
| 2025 | Kukushkin 1 - 1 Harris |
| 2024 | Kukushkin 0 - 2 Harris |
149 wins, 153 losses since 2021 (49.3%).
Last matches: D V D D D
254 wins, 195 losses since 2021 (56.6%).
Last matches: V V D V D
Billy Harris leads 3 to 1 over 4 singles meetings since 2024.
On 11/11/2025, at Lyon Challenger (Round 1): Mikhail Kukushkin won 7-6(2) 7-5.