Round: 62 Ground: Clay
| ITF Argentina F11 | 2017/11/28 19:55 | Juan Ignacio Galarza v Guido Ivan Justo | 6-4,6-4 |
| ITF Argentina F9 | 2017/11/12 13:00 | Guido Ivan Justo v Valentin Florez | 6-4,1-6,2-6 |
| ITF Argentina F8 | 2017/11/07 15:45 | Sebastian Baez v Guido Ivan Justo | 6-1,6-2 |
| ITF Argentina F8 | 2017/11/06 13:00 | Guido Ivan Justo v Leonardo Aboian | 3-6,7-6,6-4 |
| ITF Argentina F8 | 2017/11/05 17:00 | Agustin Suarez Gonzalez v Guido Ivan Justo | 4-6,4-6 |
| ITF Argentina F8 | 2017/11/05 12:00 | Guido Ivan Justo v Nicolas Bianchi | 6-2,6-3 |
| ITF Argentina F5 | 2017/08/27 13:00 | Guido Ivan Justo v Santiago Besada | 6-7,7-5,3-6 |
| ITF Argentina F5 | 2017/08/26 12:30 | Gaston Erhardt v Guido Ivan Justo | 0-6,2-6 |
| ITF Argentina F11 | 2017/11/25 19:00 | Tiago Seweryniak v Francisco Bahamonde | 0-6,2-6 |
| ITF Argentina F10 | 2017/11/21 16:55 | Lorenzo Gagliardo v Tiago Seweryniak | 6-4,2-6,6-2 |
| ITF Argentina F9 | 2017/11/12 13:00 | Gabriel Alejandro Hidalgo v Tiago Seweryniak | 6-1,6-2 |
| ITF Argentina F9 | 2017/11/11 14:00 | Tiago Seweryniak v Tomas Coronel | 7-5,6-1 |
| ITF Bolivia F3 Qual | 2017/09/30 13:30 | Tiago Seweryniak v Juan Martin Jalif | 2-6,6-7 |
| ITF Bolivia F2 Qual | 2017/09/23 16:00 | Tiago Seweryniak v Cleiner Caceres | 1-6,2-6 |
| ITF Bolivia F1 | 2017/09/16 14:00 | Tiago Seweryniak v Andre Ku Meza | 6-7,2-6 |
| ITF Argentina F7 | 2017/09/09 17:30 | Bruno L F Ureta v Tiago Seweryniak | 6-7,6-3,7-6 |