Stadion: Court 8 Round: 44 Ground: Hardcourt outdoor
| ITF - M15 - Cancun | 2021/09/26 17:30 | Oscar Matias Leiva Biason v Gabriel Roveri Sidney | 1-6,2-6 |
| ITF - M15 - Cancun | 2021/09/19 14:00 | Nikolas Moceanu v Oscar Matias Leiva Biason | 6-1,6-3 |
| ITF - M25 - Medellín | 2021/09/12 15:00 | Nicolas Buitrago v Oscar Matias Leiva Biason | 6-0,6-1 |
| ITF - M15 - Ibague | 2021/09/05 15:00 | Felipe Escobar v Oscar Matias Leiva Biason | 6-2,6-1 |
| ITF - M25 - Lima | 2020/02/09 15:00 | Oscar Matias Leiva Biason v Bautista Vilicich | 2-6,7-6,2-10 |
| ITF - M25 - Lima | 2020/02/03 15:00 | Miljan Zekic v Oscar Matias Leiva Biason | 6-2,6-0 |
| ITF - M25 - Lima | 2020/02/02 18:00 | Oscar Matias Leiva Biason v Agustin Riquelme Coppari | 6-2,2-6,10-6 |
| ITF - M15 - Cancun | 2019/12/08 14:00 | Oscar Matias Leiva Biason v Javier Gonzalez | 4-6,1-6 |
| ITF - M15 - Cancun | 2021/09/29 16:05 | Leonardo Civita-Telles v Federico Agustin Gomez | 4-6,2-6 |
| ITF - M15 - Cancun | 2021/09/24 19:30 | Osgar O'Hoisin v Leonardo Civita-Telles | 7-5,2-6,7-5 |
| ITF - M15 - Cancun | 2021/09/23 21:20 | Leonardo Civita-Telles v Christian Langmo | 6-7,6-3,6-3 |
| ITF - M15 - Cancun | 2021/09/21 14:00 | Seita Watanabe v Leonardo Civita-Telles | 3-6,6-4,5-7 |
| ITF - M25 - Sintra | 2021/09/07 08:30 | Francisco Cabral v Leonardo Civita-Telles | 6-3,6-4 |
| ITF - M25 - Sintra | 2021/09/06 10:35 | Jaime Faria v Leonardo Civita-Telles | 1-6,2-6 |
| ITF - M15 - Almada | 2021/07/04 10:30 | Leonardo Civita-Telles v Tomas Pinho | 4-6,3-6 |
| ITF - M15 - Monastir | 2021/03/24 08:30 | Leonardo Civita-Telles v Hazem Naw | 6-4,3-6,5-7 |