Stadium: Cancha Central Round: 46 Ground: Clay
| Challenger Santiago Qual | 2018/03/03 17:40 | Joao Souza v Martin Cuevas | 6-3,2-6,6-4 |
| ATP Rio De Janeiro Qual | 2018/02/17 20:45 | Carlos Berlocq v Joao Souza | 6-1,7-5 |
| ATP Buenos Aires Qual | 2018/02/10 14:00 | Joao Souza v Gastao Elias | 6-4,3-6,0-6 |
| ATP Quito Qual | 2018/02/04 18:45 | Facundo Bagnis v Joao Souza | 6-3,6-4 |
| ATP Quito Qual | 2018/02/03 20:32 | Jan Hernych v Joao Souza | 3-6,3-5 |
| ATP Quito Qual | 2018/02/03 19:55 | Jan Hernych v Joao Souza | 3-6,3-6 |
| Australian Open Qual | 2018/01/10 02:25 | Andrea Collarini v Joao Souza | 6-7,6-2,6-4 |
| ATP Pune Qual | 2017/12/31 08:55 | Joao Souza v Ricardo Ojeda Lara | 3-6,4-6 |
| ITF Chile F3 | 2017/12/06 18:35 | Victor Nunez v Matias Zukas | 6-7,0-6 |
| ITF Chile F3 | 2017/12/04 17:00 | Luca Gelhardt v Victor Nunez | 4-6,4-6 |
| ITF Chile F2 | 2017/11/30 16:00 | Eduardo Agustin Torre v Victor Nunez | 7-6,2-6,7-6 |
| ITF Chile F2 | 2017/11/29 15:00 | Victor Nunez v Matias Zukas | 6-2,6-3 |
| ITF Chile F2 | 2017/11/27 15:25 | Victor Nunez v Juan Bautista Otegui | 7-5,6-3 |
| ITF Chile F1 | 2017/11/25 16:25 | Victor Nunez v Gonzalo Lama | 3-6,5-7 |
| ITF Chile F1 | 2017/11/24 18:40 | Victor Nunez v Fabrizio Ornago | 6-3,6-2 |
| ITF Chile F1 | 2017/11/23 16:05 | Matias Franco Descotte v Victor Nunez | 2-6,3-6 |