Stadium: Court 6 Round: 45 Ground: Clay
| Challenger L'Aquila Qual | 2018/06/17 08:00 | Joao Souza v Riccardo Bonadio | 7-5,6-7,3-6 |
| Challenger Caltanissetta Qual | 2018/06/11 10:15 | Joao Souza v Marc Sieber | 6-2,3-6,4-6 |
| Challenger Caltanissetta Qual | 2018/06/10 12:10 | Joao Souza v Claudio Fortuna | 7-6,6-2 |
| Challenger Caltanissetta Qual | 2018/06/09 12:05 | Joao Souza v Fausto Tabacco | 6-2,6-2 |
| Challenger Guadalajara | 2018/04/17 20:15 | Joao Souza v Gonzalo Escobar | 6-2,3-6,5-7 |
| Challenger Guadalajara Qual | 2018/04/16 17:00 | Alejandro Gonzalez v Joao Souza | 4-6,6-0,3-6 |
| Challenger Guadalajara Qual | 2018/04/15 17:40 | Lloyd Glasspool v Joao Souza | 6-3,6-7,6-7 |
| Challenger Guadalajara Qual | 2018/04/14 19:05 | Raul-Isaias Rosas-Zarur v Joao Souza | 2-6,0-6 |
| Challenger Santiago 2 Qual | 2017/11/11 17:00 | Roberto Carballes Baena v Andres Molteni | 6-0,6-2 |
| Challenger Santiago 2 Qual | 2017/11/11 13:00 | Carlos Cuevas v Andres Molteni | 0-6,1-6 |
| Challenger Montevideo Qual | 2017/11/05 15:30 | Facundo Arguello v Andres Molteni | 6-7,3-6 |
| Challenger Montevideo Qual | 2017/11/04 14:00 | Andres Molteni v Genaro Alberto Olivieri | 6-4,6-2 |
| Challenger Orleans Qual | 2017/09/23 12:40 | Andres Molteni v Fabien Reboul | 7-6,3-6,6-7 |
| Challenger Orleans Qual | 2017/09/23 07:30 | Andres Molteni v Maxime Tabatruong | 7-6,6-2 |
| ATP Los Cabos Qual | 2017/07/30 00:10 | Andres Molteni v Sadio Doumbia | 4-6,3-6 |
| ATP Eastbourne Qual | 2017/06/24 14:00 | Thomas Fabbiano v Andres Molteni | 6-1,6-1 |