By surface
| Surface | Gabriel Diallo | Fabian Marozsan |
|---|---|---|
| Hard | 2 | 0 |
All meetings (2)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025-07-21 | ATP | Washington | Round of 32 | Hard | Gabriel Diallo | 6-3 | 6-4 | |||
| 2025-02-01 | ATP | Davis Cup QLS R1: CAN vs HUN | Round Robin | Hard | Gabriel Diallo | 6-1 | 6-3 |