Level, 2 wins each over 4 singles meetings since 2026. Last meeting on 14/03/2026 at Santiago Challenger.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 14/03/2026 | Santiago Challenger | Quarter-final | clay | Monteiro | 6-3 3-6 4-6 |
| 21/02/2026 | BCI Seguros Chile Open - Santiago | Qualifying 1 | clay | Vallejo | 6-7(3) 6-4 5-2 |
| 15/02/2026 | Rio Open - Rio de Janeiro | Qualifying 1 | clay | Monteiro | 4-6 1-4 |
| 23/01/2026 | Itajai Challenger | Quarter-final | clay | Vallejo | 2-6 6-4 3-4 |
| clay | Monteiro 2 - 2 Vallejo |
| 2026 | Monteiro 2 - 2 Vallejo |
190 wins, 157 losses since 2021 (54.8%).
Last matches: D V V D V
180 wins, 119 losses since 2021 (60.2%).
Last matches: D D V D V
Level, 2 wins each over 4 singles meetings since 2026.
On 14/03/2026, at Santiago Challenger (Quarter-final): Thiago Moura Monteiro won 6-3 3-6 4-6.