Stadium: Centre Court Round: 26 Ground: Hardcourt outdoor
| Challenger Brasilia | 2023/11/21 14:40 | Aleksandar Kovacevic v Joao Fonseca | 3-6,6-3,6-7 |
| ITF M15 - Saarlouis | 2023/06/24 11:00 | Joao Fonseca v Sander Jong | 4-6,3-6 |
| ITF M15 - Saarlouis | 2023/06/23 10:00 | Hazem Naw v Joao Fonseca | 6-7,5-7 |
| ITF M15 - Saarlouis | 2023/06/22 10:15 | Joao Fonseca v Collin Altamirano | 6-2,6-3 |
| ITF M15 - Saarlouis | 2023/06/20 16:00 | Joao Fonseca v Milan Welte | 7-5,7-5 |
| ITF M15 - Duffel | 2023/06/16 09:00 | Joao Fonseca v Buvaysar Gadamauri | 7-6,2-6,4-6 |
| ITF M15 - Duffel | 2023/06/15 13:35 | Marlon Vankan v Joao Fonseca | 4-6,4-6 |
| ITF M15 - Duffel | 2023/06/14 08:00 | Dylan Dietrich v Joao Fonseca | 3-6,3-6 |
| Challenger Brasilia | 2023/11/21 13:00 | Hernan Casanova v Roman Andres Burruchaga | 6-1,5-7,1-6 |
| Challenger Montevideo | 2023/11/17 18:30 | Facundo Diaz Acosta v Roman Andres Burruchaga | 4-6,6-4,6-3 |
| Challenger Montevideo | 2023/11/16 18:45 | Alvaro G Meza v Roman Andres Burruchaga | 6-4,4-6,3-6 |
| Challenger Montevideo | 2023/11/14 16:35 | Roman Andres Burruchaga v Thiago Agustin Tirante | 6-2,1-6,6-2 |
| Challenger Lima | 2023/11/10 18:40 | Roman Andres Burruchaga v Alejandro Tabilo | 2-6,5-7 |
| Challenger Lima | 2023/11/09 16:00 | Edoardo Lavagno v Roman Andres Burruchaga | 3-6,0-6 |
| Challenger Lima | 2023/11/07 15:00 | Matheus P De Almeida v Roman Andres Burruchaga | 1-6,2-6 |
| Challenger Guayaquil | 2023/11/04 16:00 | Alejandro Tabilo v Roman Andres Burruchaga | 6-3,6-4 |