Joao Fonseca leads 2 to 1 over 3 singles meetings since 2024. Last meeting on 06/04/2026 at Monte-Carlo Rolex Masters - Monte-Carlo.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 06/04/2026 | Monte-Carlo Rolex Masters - Monte-Carlo | Round 1 | clay | Fonseca | 6-2 4-3 |
| 03/08/2024 | Lexington Challenger | Quarter-final | hard | Fonseca | 2-6 2-6 |
| 24/07/2024 | Chicago Challenger | Round 2 | hard | Diallo | 7-6(1) 6-1 |
| clay | Diallo 0 - 1 Fonseca |
| hard | Diallo 1 - 1 Fonseca |
| 2026 | Diallo 0 - 1 Fonseca |
| 2024 | Diallo 1 - 1 Fonseca |
162 wins, 111 losses since 2021 (59.3%).
Last matches: D V D D V
127 wins, 68 losses since 2021 (65.1%).
Last matches: D V D V V
Joao Fonseca leads 2 to 1 over 3 singles meetings since 2024.
On 06/04/2026, at Monte-Carlo Rolex Masters - Monte-Carlo (Round 1): Joao Fonseca won 6-2 4-3.