Stadium: Court 3 Round: 27 Ground: Clay
| ITF M25 Medellin | 2021/09/16 14:55 | Pedro Sakamoto v Tacchi, Luciano | 6-4,6-2 |
| ITF M25 Medellin | 2021/09/15 15:00 | Pedro Sakamoto v Andres Urrea | 6-3,6-3 |
| ITF M25 Medellin | 2021/09/13 20:00 | Pedro Sakamoto v Hernandez, Felipe | 6-0,6-0 |
| ITF M25 Medellin | 2021/09/13 15:00 | Pedro Sakamoto v Builes, Tomas | 6-0,6-0 |
| ITF M25 Medellin | 2021/09/12 15:00 | Pedro Sakamoto v Joao Eduardo Schiessl | 6-2,6-1 |
| Challenger - Barletta | 2021/08/24 09:00 | Pedro Sakamoto v Nicolas Mejia | 6-7,6-7 |
| ITF M25 Bacau | 2021/08/17 11:15 | Pedro Sakamoto v Oleg Prihodko | 6-3,6-1 |
| ITF M25 Frankfurt am Main | 2021/08/12 09:00 | Daniel Cukierman v Pedro Sakamoto | 6-3,1-6,6-1 |
| ITF M25 Medellin | 2021/09/16 15:00 | Pedro Boscardin Dias v Hernandez Serrano, Juan Alejandro | 3-6,4-6 |
| ITF M25 Medellin | 2021/09/14 16:00 | Enrique Pena v Hernandez Serrano, Juan Alejandro | 2-6,2-6 |
| ITF M15 Ibague | 2021/09/11 15:00 | Hernandez Serrano, Juan Alejandro v Gomez, Alejandro | 1-6,4-6 |
| ITF M15 Ibague | 2021/09/10 17:00 | Hernandez Serrano, Juan Alejandro v Lopez Villasenor, Gerardo | 7-6,6-4 |
| ITF M15 Ibague | 2021/09/09 14:30 | Hernandez Serrano, Juan Alejandro v Tacchi, Luciano | 6-4,6-3 |
| ITF M15 Ibague | 2021/09/08 17:00 | Hernandez Serrano, Juan Alejandro v Mateo Barreiros Reyes | 7-6,6-4 |
| UTR Pro Tennis Series Manzanillo | 2021/08/14 13:00 | Patino, Luis v Hernandez Serrano, Juan Alejandro | 4-6,6-2,6-2 |
| UTR Pro Tennis Series Manzanillo | 2021/08/13 14:30 | Hernandez Serrano, Juan Alejandro v Lazaro Navarro-Batles | 6-3,6-0 |