Level, 1 wins each over 2 singles meetings since 2024. Last meeting on 15/06/2025 at cinch Championships - London.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 15/06/2025 | cinch Championships - London | Round 1 | grass | Diallo | 6-1 3-6 6-4 |
| 16/07/2024 | Infosys Hall of Fame Open - Newport | Round 1 | grass | Harris | 7-6(4) 7-5 |
| grass | Harris 1 - 1 Diallo |
| 2025 | Harris 0 - 1 Diallo |
| 2024 | Harris 1 - 0 Diallo |
247 wins, 189 losses since 2021 (56.7%).
Last matches: D D V D V
162 wins, 111 losses since 2021 (59.3%).
Last matches: D V D D V
Level, 1 wins each over 2 singles meetings since 2024.
On 15/06/2025, at cinch Championships - London (Round 1): Gabriel Diallo won 6-1 3-6 6-4.