Guido Ivan Justo leads 2 to 1 over 3 singles meetings since 2023. Last meeting on 09/04/2026 at Campinas Challenger.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 09/04/2026 | Campinas Challenger | Round 2 | clay | Justo | 6-4 6-3 |
| 31/03/2026 | Sao Leopoldo Challenger | Round 1 | clay | Serna | 7-6(4) 2-6 6-2 |
| 27/06/2023 | M25 Rosario-Santa Fe | Round 1 | clay | Justo | 0-6 6-7(5) |
| clay | Justo 2 - 1 Serna |
| 2026 | Justo 1 - 1 Serna |
| 2023 | Justo 1 - 0 Serna |
166 wins, 99 losses since 2021 (62.6%).
Last matches: D D V D V
139 wins, 94 losses since 2021 (59.7%).
Last matches: D V V D V
Guido Ivan Justo leads 2 to 1 over 3 singles meetings since 2023.
On 09/04/2026, at Campinas Challenger (Round 2): Guido Ivan Justo won 6-4 6-3.