Adolfo Daniel Vallejo leads 3 to 1 over 4 singles meetings since 2024. Last meeting on 10/03/2026 at Santiago Challenger.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 10/03/2026 | Santiago Challenger | Round 1 | clay | Vallejo | 6-3 6-4 |
| 17/01/2025 | Buenos Aires Challenger | Quarter-final | clay | Vallejo | 6-3 3-6 4-6 |
| 23/09/2024 | Antofagasta Challenger | Round 1 | clay | Vallejo | 6-2 6-4 |
| 08/01/2024 | Buenos Aires Challenger | Qualifiers | clay | Villanueva | 2-6 4-6 |
| clay | Villanueva 1 - 3 Vallejo |
| 2026 | Villanueva 0 - 1 Vallejo |
| 2025 | Villanueva 0 - 1 Vallejo |
| 2024 | Villanueva 1 - 1 Vallejo |
222 wins, 185 losses since 2021 (54.5%).
Last matches: D V V V D
180 wins, 119 losses since 2021 (60.2%).
Last matches: D D V D V
Adolfo Daniel Vallejo leads 3 to 1 over 4 singles meetings since 2024.
On 10/03/2026, at Santiago Challenger (Round 1): Adolfo Daniel Vallejo won 6-3 6-4.