Stadium: Court 2 Round: 44 Ground: Clay
| ITF M15 Ibague | 2021/09/08 17:00 | Juan A H Serrano v Mateo Barreiros Reyes | 7-6,6-4 |
| ITF M15 Ibague | 2021/09/07 14:00 | Mateo Barreiros Reyes v William Yovanny Ribero Duarte | 6-0,6-4 |
| ITF M15 Ibague | 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 |
| UTR Pro Tennis Series Florida | 2021/08/27 15:00 | Parth Aggarwal v Mateo Barreiros Reyes | 6-7,2-6 |
| UTR Pro Tennis Series Florida | 2021/08/26 15:00 | Jorge Panta v Mateo Barreiros Reyes | 6-3,6-0 |
| UTR Pro Tennis Series Florida | 2021/08/24 15:00 | Kian Vakili v Mateo Barreiros Reyes | 6-7,7-5,3-6 |
| ITF M25 Medellin | 2021/09/12 18:00 | Jared Thompkins v Sebastian Santibanez | 6-7,3-6 |
| ITF M15 Ibague | 2021/09/07 14:00 | Nicolas Buitrago v Sebastian Santibanez | 6-4,6-2 |
| ITF M15 Huy | 2021/08/23 13:50 | Maik Steiner v Sebastian Santibanez | 6-3,6-0 |
| ITF M15 Huy | 2021/08/22 09:05 | Sebastian Santibanez v Louis Cabay | 6-1,6-1 |
| ITF M25 Ueberlingen | 2021/08/17 09:15 | Oscar Galimardanov v Sebastian Santibanez | 6-3,6-0 |
| ITF M25 Ueberlingen | 2021/08/16 13:45 | Sebastian Santibanez v Tarun Anirudh Chilakalapudi | 6-3,6-2 |
| ITF Chile F3 | 2015/04/11 16:00 | Emilio Samhan v Sebastian Santibanez | 1-6,0-6 |