Round: 62 Ground: Clay
| ITF Argentina F3 | 2018/05/27 12:30 | Juan Bautista Otegui v Benjamin L Ambrosio | 6-0,6-4 |
| ITF Argentina F3 | 2018/05/26 12:00 | Juan Bautista Otegui v Alberto Odiseo Alvarado Berrospi | 6-2,6-3 |
| ITF Argentina F2 | 2018/05/22 16:15 | Juan Bautista Otegui v Camilo Ugo Carabelli | 4-6,2-6 |
| ITF Argentina F1 | 2018/05/15 12:00 | Juan Bautista Otegui v Santiago Rodriguez Taverna | 4-6,5-7 |
| ITF Brazil F3 | 2018/05/08 17:55 | Christian Lindell v Juan Bautista Otegui | 6-4,6-3 |
| ITF Brazil F3 | 2018/05/07 12:30 | Juan Bautista Otegui v Enrique Bogo | 6-1,6-2 |
| ITF Brazil F3 | 2018/05/06 12:30 | Juan Bautista Otegui v Pedro Ortega | 6-0,6-1 |
| ITF Brazil F2 | 2018/04/30 15:00 | Pedro Sakamoto v Juan Bautista Otegui | 7-5,6-3 |
| ITF Argentina F3 | 2018/05/26 14:30 | Joaquin Ledesma v Gaston E Cantero | 4-6,5-7 |
| ITF Argentina F2 | 2018/05/22 19:55 | Ignacio Monzon v Gaston E Cantero | 6-1,6-2 |
| ITF Argentina F2 | 2018/05/21 15:30 | Gaston E Cantero v Tiago Seweryniak | 6-3,6-1 |
| ITF Argentina F2 | 2018/05/20 13:00 | Gaston E Cantero v Benjamin L Ambrosio | 6-4,6-2 |
| ITF Argentina F2 | 2018/05/19 14:30 | Francisco Comesana v Gaston E Cantero | 4-6,2-6 |
| ITF Argentina F1 | 2018/05/15 14:25 | Eduardo Agustin Torre v Gaston E Cantero | 6-1,3-6,7-6 |
| ITF Argentina F1 | 2018/05/14 12:00 | Gaston E Cantero v Guido Ivan Justo | 6-3,6-3 |
| ITF Argentina F1 | 2018/05/13 14:30 | Gaston E Cantero v Felipe Derdoy | 6-3,4-6,6-4 |