Guido Ivan Justo leads 6 to 0 over 6 singles meetings since 2023. Last meeting on 02/10/2026 at Curitiba Challenger.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 02/10/2026 | Curitiba Challenger | Quarter-final | clay | Justo | 6-2 3-4 |
| 22/09/2026 | Buenos Aires Challenger | Round 1 | clay | Justo | 4-6 6-3 1-6 |
| 24/02/2026 | Tigre 2 Challenger | Round 1 | clay | Justo | 5-7 5-5 |
| 28/04/2025 | Porto Alegre Challenger | Round 1 | clay | Justo | 7-6(6) 6-5 |
| 03/02/2025 | Rosario Challenger | Qualifiers | clay | Justo | 4-6 4-6 |
| 18/04/2023 | Florianopolis Challenger | Round 1 | clay | Justo | 3-6 7-6(2) 2-4 |
| clay | Villanueva 0 - 6 Justo |
| 2026 | Villanueva 0 - 3 Justo |
| 2025 | Villanueva 0 - 2 Justo |
| 2023 | Villanueva 0 - 1 Justo |
224 wins, 191 losses since 2021 (54.0%).
Last matches: D D D D D
174 wins, 102 losses since 2021 (63.0%).
Last matches: D V D V V
Guido Ivan Justo leads 6 to 0 over 6 singles meetings since 2023.
On 02/10/2026, at Curitiba Challenger (Quarter-final): Guido Ivan Justo won 6-2 3-4.