Round: 62 Ground: Clay
| ITF Argentina F4 | 2017/08/20 14:30 | Fernando Sierra v Valentin Florez | 0-6,2-6 |
| ITF Argentina F3 | 2017/06/17 12:00 | Fernando Sierra v Ignacio Monzon | 7-5,5-7,1-6 |
| ITF Argentina F1 | 2017/06/03 11:30 | Fernando Sierra v Felipe Derdoy | 4-6,3-6 |
| ITF Uruguay F2 | 2016/12/05 15:05 | Fernando Sierra v Camilo Ugo Carabelli | 2-6,1-6 |
| ITF Uruguay F2 Qual | 2016/12/04 17:05 | Fernando Sierra v Jeff Guerrero | 6-4,2-6,6-0 |
| ITF Argentina F13 | 2016/11/05 17:30 | Genaro Alberto Olivieri v Fernando Sierra | 6-0,7-6 |
| ITF Argentina F11 Qual | 2016/10/22 12:00 | Fernando Sierra v Juan Ignacio Ameal | 1-6,3-6 |
| ITF Argentina F9 | 2016/05/27 22:00 | Felipe Derdoy v Fernando Sierra | 6-2,3-6,6-3 |
| ITF Argentina F6 | 2017/09/02 14:30 | Gabriel P Tumasonis v Rodrigo Arus | 2-6,2-6 |
| ITF Belgium F7 Qual | 2017/07/30 13:55 | Gabriel P Tumasonis v Robi Tholl | 6-4,5-7,3-6 |
| ITF Belgium F7 Qual | 2017/07/29 11:00 | Gabriel P Tumasonis v Maxime Lapraille | 5-7,6-3,6-4 |
| ITF Belgium F6 | 2017/07/23 11:00 | Gabriel P Tumasonis v Javier Naser | 4-6,3-6 |
| ITF Belgium F6 | 2017/07/22 12:30 | Gabriel P Tumasonis v Lars Hoischen | 3-6,7-5,6-1 |
| ITF Belgium F5 | 2017/07/16 09:30 | Maxime Pauwels v Gabriel P Tumasonis | 6-2,6-1 |
| ITF Belgium F5 | 2017/07/15 11:00 | Simon Musset v Gabriel P Tumasonis | 6-7,0-6 |
| ITF Belgium F4 Qual | 2017/07/09 09:40 | Turpal Gadamauri v Gabriel P Tumasonis | 6-4,3-6,7-5 |