Stadium: Cancha Central Round: 28 Ground: Clay
| ITF Argentina F2 | 2018/05/24 14:00 | Matias Zukas v Juan Carlos Saez | 6-7,2-6 |
| ITF Argentina F2 | 2018/05/23 13:00 | Juan P G Mazzuchi v Juan Carlos Saez | 4-6,2-6 |
| ITF Argentina F2 | 2018/05/22 13:00 | Ryusei Makiguchi v Juan Carlos Saez | 1-6,2-6 |
| ITF Argentina F1 | 2018/05/16 15:00 | Tomas Farjat v Juan Carlos Saez | 6-4,6-4 |
| ITF Argentina F1 | 2018/05/14 15:00 | Ryusei Makiguchi v Juan Carlos Saez | 2-6,5-7 |
| ITF Spain F10 | 2018/04/24 08:00 | Juan Carlos Saez v Mario Vilella Martinez | 4-6,4-6 |
| ITF Spain F9 | 2018/04/20 09:30 | Pedro Cachin v Juan Carlos Saez | 2-6,6-1,6-2 |
| ITF Spain F9 | 2018/04/18 09:00 | Michiel de Krom v Juan Carlos Saez | 5-7,0-6 |
| ITF Argentina F2 | 2018/05/24 14:00 | Eduardo Agustin Torre v Oscar Jose Gutierrez | 4-6,1-6 |
| ITF Argentina F2 | 2018/05/23 13:00 | Felipe Derdoy v Oscar Jose Gutierrez | 0-6,0-6 |
| ITF Argentina F2 | 2018/05/22 13:00 | Mateo Nicolas Martinez v Oscar Jose Gutierrez | 6-4,4-6,2-6 |
| ITF Brazil F4 | 2018/05/17 19:30 | Oscar Jose Gutierrez v Jose Pereira | 2-6,2-6 |
| ITF Brazil F4 | 2018/05/15 13:00 | Oscar Jose Gutierrez v Igor Gimenez | 6-0,7-6 |
| ITF Brazil F3 | 2018/05/13 13:30 | Oscar Jose Gutierrez v Marcelo Zormann | 6-2,6-2 |
| ITF Brazil F3 | 2018/05/12 17:20 | Nicolas Santos v Oscar Jose Gutierrez | 6-4,3-6,4-6 |
| ITF Brazil F3 | 2018/05/11 18:25 | Pedro Sakamoto v Oscar Jose Gutierrez | 5-7,6-4,3-6 |