Stadium: Court 1 Round: 26 Ground: Clay
| ITF Argentina F2 | 2018/05/22 18:05 | Grassi Mazzuchi, Juan Pablo v Gonzalez Paiva, Juan Mauricio | 6-2,6-1 |
| ITF Argentina F1 | 2018/05/15 18:15 | Tomas Farjat v Grassi Mazzuchi, Juan Pablo | 6-4,7-6 |
| ITF Peru F2 | 2017/12/18 15:00 | Grassi Mazzuchi, Juan Pablo v Peter Bertran | 7-5,6-7,5-7 |
| ITF Peru F1 | 2017/12/12 20:50 | Grassi Mazzuchi, Juan Pablo v Romboli, Fernando | 2-6,1-6 |
| ITF Peru F1 | 2017/12/11 17:00 | Grassi Mazzuchi, Juan Pablo v Beretta, Duillo | 2-6,0-6 |
| ITF Peru F1 | 2017/12/10 19:00 | Grassi Mazzuchi, Juan Pablo v Derdoy, Felipe | 6-4,6-4 |
| ITF Argentina F10 | 2017/11/22 13:40 | Grassi Mazzuchi, Juan Pablo v Gonzalo Villanueva | 2-6,0-6 |
| ITF Argentina F10 | 2017/11/21 12:00 | Grassi Mazzuchi, Juan Pablo v Kohen, Alan | 6-3,6-3 |
| ITF Argentina F2 | 2018/05/22 13:00 | Makiguchi, Ryusei v Saez, Juan Carlos | 1-6,2-6 |
| ITF Argentina F1 | 2018/05/16 15:00 | Tomas Farjat v Saez, Juan Carlos | 6-4,6-4 |
| ITF Argentina F1 | 2018/05/14 15:00 | Makiguchi, Ryusei v Saez, Juan Carlos | 2-6,5-7 |
| ITF Spain F10 | 2018/04/24 08:00 | Saez, Juan Carlos v Vilella Martinez, Mario | 4-6,4-6 |
| ITF Spain F9 | 2018/04/20 09:30 | Pedro Cachin v Saez, Juan Carlos | 2-6,6-1,6-2 |
| ITF Spain F9 | 2018/04/18 09:00 | Michiel de Krom v Saez, Juan Carlos | 5-7,0-6 |
| Tunisia F14, Singles Qualifying | 2018/04/10 11:00 | Michael Vrbensky v Saez, Juan Carlos | 6-2,6-4 |
| ITF Tunisia F13 | 2018/04/05 09:00 | Matej Vocel v Saez, Juan Carlos | 6-3,6-2 |