J. Duckworth leads the head-to-head 2-1 since 2018 against G. Diallo, over 3 matches.
| Surface | J. Duckworth | G. Diallo |
|---|---|---|
| Clay | 1 | 0 |
| Hard | 1 | 1 |
| Date | Winner | Score | Event |
|---|---|---|---|
| May 24, 2026 | J. Duckworth | 1 - 0 | French Open · 1/64-finals · clay |
| Oct. 15, 2025 | J. Duckworth | 2 - 1 | Almaty · 1/8-finals · hard |
| Aug. 6, 2022 | G. Diallo | 2 - 0 | Montreal · Semi-finals · hard |