Stadium: Enrique Morea Round: 26 Ground: Clay
| Challenger - Buenos Aires | 2024/01/08 18:55 | Felix Gill v Joao Fonseca | 6-2,1-6,2-6 |
| Challenger Brasilia | 2023/11/23 15:15 | Joao Fonseca v Roman Andres Burruchaga | 6-4,4-6,4-6 |
| Challenger Brasilia | 2023/11/21 14:40 | Aleksandar Kovacevic v Joao Fonseca | 3-6,6-3,6-7 |
| Saarlouis, Singles Qualifying M-ITF-GER-07A | 2023/06/24 11:00 | Joao Fonseca v Sander Jong | 4-6,3-6 |
| Saarlouis, Singles Qualifying M-ITF-GER-07A | 2023/06/23 10:00 | Hazem Naw v Joao Fonseca | 6-7,5-7 |
| Saarlouis, Singles Qualifying M-ITF-GER-07A | 2023/06/22 10:15 | Joao Fonseca v Collin Altamirano | 6-2,6-3 |
| Saarlouis, Singles Qualifying M-ITF-GER-07A | 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 |
| Montevideo, Uruguay | 2023/11/14 15:00 | Murkel Dellien v Thiago Monteiro | 0-6,4-6 |
| Montevideo, Uruguay | 2023/11/13 15:00 | Murkel Dellien v Gerard Campana Lee | 6-2,6-3 |
| Montevideo, Uruguay | 2023/11/12 16:45 | Murkel Dellien v Wilson Leite | 6-1,6-3 |
| Challenger Lima | 2023/11/06 16:00 | Murkel Dellien v Alvaro G Meza | 7-5,2-6,3-6 |
| Challenger Lima | 2023/11/05 15:00 | Murkel Dellien v Rodrigo Varillas | 6-0,6-1 |
| Challenger Guayaquil | 2023/10/31 19:00 | Murkel Dellien v Facundo Diaz Acosta | 3-6,2-6 |
| Challenger Curitiba | 2023/10/24 17:15 | Orlando Luz v Murkel Dellien | 6-1,7-5 |
| Challenger - Buenos Aires | 2023/10/10 16:35 | Murkel Dellien v Mariano Navone | 2-6,2-6 |