Stadium: Centre Court Round: 25 Ground: Clay
| ITF M25 Lima | 2021/10/17 15:00 | Gilbert S K Junior v Daniel Dutra Da Silva | 7-6,6-3 |
| ITF M25 Lima | 2021/10/16 16:40 | Gilbert S K Junior v Jonathan Mridha | 6-4,6-3 |
| ITF M25 Lima | 2021/10/14 16:30 | Federico Zeballos v Gilbert S K Junior | 6-2,3-6,4-6 |
| ITF M25 Lima | 2021/10/12 17:00 | Antonio Cayetano March v Gilbert S K Junior | 3-6,3-6 |
| Challenger Santiago | 2021/10/03 19:50 | Gilbert S K Junior v Carlos Gomez-Herrera | 6-3,2-6,3-6 |
| ITF M25 Medellín | 2021/09/19 15:00 | Gilbert S K Junior v Joao Lucas Reis da Silva | 6-2,6-2 |
| ITF M25 Medellín | 2021/09/18 14:50 | Pedro Sakamoto v Gilbert S K Junior | 3-6,6-7 |
| ITF M25 Medellín | 2021/09/17 15:00 | Gilbert S K Junior v Alan Kohen | 6-2,4-6,6-1 |
| ITF M15 Recife | 2021/09/21 22:40 | Pedro Boscardin Dias v Mateo Barreiros Reyes | 6-2,6-2 |
| ITF M25 Medellín | 2021/09/15 18:45 | Jose Pereira v Mateo Barreiros Reyes | 6-2,6-4 |
| ITF M25 Medellín | 2021/09/13 20:00 | Mateo Barreiros Reyes v Sebastian Santibanez | 6-3,6-3 |
| ITF M15 Ibagué | 2021/09/08 17:00 | Juan A H Serrano v Mateo Barreiros Reyes | 7-6,6-4 |
| ITF M15 Ibagué | 2021/09/07 14:00 | Mateo Barreiros Reyes v William Yovanny Ribero Duarte | 6-0,6-4 |
| ITF M15 Ibagué | 2021/09/06 20:25 | Mateo Barreiros Reyes v Manuel Montoya Zuluaga | 6-1,6-2 |
| UTR Pro Tennis Series - Florida | 2021/08/29 14:15 | Toby D. Boyer v Mateo Barreiros Reyes | 6-2,2-2 |
| UTR Pro Tennis Series - Florida | 2021/08/28 13:30 | Omar Maldonado v Mateo Barreiros Reyes | 3-6,4-5 |