Stadium: Cancha Central Round: 29 Ground: Clay
| ITF - M25 Lajeado | 2022/11/24 15:45 | Joao Fonseca v Gustavo Heide | 1-6,6-7 |
| Challenger - Asuncion | 2024/03/23 23:10 | Juan Pablo Varillas v Gustavo Heide | 4-6,2-6 |
| Challenger - Asuncion | 2024/03/23 00:10 | Alexander Weis v Gustavo Heide | 3-6,6-7 |
| Challenger - Asuncion | 2024/03/21 23:00 | Pedro Sakamoto v Gustavo Heide | 1-6,3-6 |
| Challenger - Asuncion | 2024/03/20 02:10 | Valerio Aboian v Gustavo Heide | 7-6,3-6,2-6 |
| Challenger - Santiago | 2024/03/16 16:05 | Gustavo Heide v Facundo Bagnis | 4-6,6-7 |
| Challenger - Santiago | 2024/03/15 23:50 | Gustavo Heide v Gianluca Mager | 6-2,7-6 |
| Challenger - Santiago | 2024/03/14 16:20 | Gustavo Heide v Andrea Collarini | 7-5,6-1 |
| Challenger - Santiago | 2024/03/12 21:00 | Tomas Barrios Vera v Gustavo Heide | 3-6,4-6 |
| Challenger - Asuncion | 2024/03/23 20:10 | Joao Fonseca v Roman Andres Burruchaga | 7-6,1-6,6-3 |
| Challenger - Asuncion | 2024/03/22 21:30 | Orlando Luz v Joao Fonseca | 6-3,6-7,2-6 |
| Challenger - Asuncion | 2024/03/20 19:00 | Joao Fonseca v Hernando J E Isnardi | 6-3,6-4 |
| Challenger - Asuncion | 2024/03/19 00:25 | Alvaro G Meza v Joao Fonseca | 6-3,2-6,4-6 |
| Challenger - Santiago | 2024/03/12 22:50 | Joao Fonseca v Federico Agustin Gomez | 6-7,6-2,4-6 |
| ATP - Santiago | 2024/02/27 20:20 | Thiago Agustin Tirante v Joao Fonseca | 7-5,7-6 |
| ATP - Rio de Janeiro | 2024/02/24 00:25 | Joao Fonseca v Mariano Navone | 6-2,3-6,3-6 |
| ATP - Rio de Janeiro | 2024/02/23 00:20 | Joao Fonseca v Cristian Garin | 6-4,6-4 |