Stadium: Cancha 2 Round: 25 Ground: Clay
| Challenger Santiago Qual | 2018/03/05 14:00 | Souza, Joao Olavo v Pedro Cachin | 5-7,6-7 |
| Challenger Santiago Qual | 2018/03/04 15:50 | Souza, Joao Olavo v Nunez, V. | 6-2,6-1 |
| Challenger Santiago Qual | 2018/03/03 17:40 | Souza, Joao Olavo v Cuevas, Martin | 6-3,2-6,6-4 |
| ATP Rio De Janeiro Qual | 2018/02/17 20:45 | Berlocq, Carlos v Souza, Joao Olavo | 6-1,7-5 |
| ATP Buenos Aires Qual | 2018/02/10 14:00 | Souza, Joao Olavo v Gastao Elias | 6-4,3-6,0-6 |
| ATP Quito Qual | 2018/02/04 18:45 | Facundo Bagnis v Souza, Joao Olavo | 6-3,6-4 |
| ATP Quito Qual | 2018/02/03 20:32 | Hernych, Jan v Souza, Joao Olavo | 3-6,3-5 |
| ATP Quito Qual | 2018/02/03 19:55 | Hernych, Jan v Souza, Joao Olavo | 3-6,3-6 |
| Challenger Santiago Qual | 2018/03/05 14:00 | Gomez-Herrera, Carlos v Londero, Juan Ignacio | 6-2,6-4 |
| Challenger Santiago Qual | 2018/03/04 14:00 | Hugo Dellien v Gomez-Herrera, Carlos | 1-6,5-7 |
| Challenger Santiago Qual | 2018/03/03 14:25 | Lindell, Christian v Gomez-Herrera, Carlos | 3-6,6-4,2-6 |
| Challenger - Punta del Este | 2018/02/27 16:30 | Gian Marco Moroni v Gomez-Herrera, Carlos | 7-6,6-4 |
| Challenger Punta Del Este Qual | 2018/02/26 14:30 | Gomez-Herrera, Carlos v Matias Franco Descotte | 6-1,6-4 |
| Challenger Punta Del Este Qual | 2018/02/25 14:00 | Gomez-Herrera, Carlos v Estevez Maximiliano | 6-4,6-2 |
| ITF Greece F10 | 2017/11/23 12:20 | Gomez-Herrera, Carlos v Gomez, Lucas | 6-3,6-4 |
| ITF Greece F10 | 2017/11/22 10:40 | Gomez-Herrera, Carlos v Michalis Sakellaridis | 6-1,6-2 |