Ground: Clay
| ITF Argentina F3 | 2015/03/21 17:00 | Franco Agamenone v Gabriel P Tumasonis | 6-1,6-1 |
| ITF Argentina F2 | 2015/03/14 15:30 | Gabriel P Tumasonis v Luciano Betella | 3-6,4-6 |
| ITF Argentina F1 | 2015/03/08 12:30 | Alejo Vilaro v Gabriel P Tumasonis | 6-3,2-6,3-6 |
| ITF Argentina F1 | 2015/03/07 14:30 | Marcelo Barros v Gabriel P Tumasonis | 2-6,4-6 |
| ITF Chile F2 | 2015/02/22 13:30 | Gabriel P Tumasonis v David Volfson | 1-6,0-6 |
| ITF Chile F2 | 2015/02/21 16:00 | Javier Araya v Gabriel P Tumasonis | 2-6,0-6 |
| ITF Chile F1 | 2015/02/14 16:00 | David Fleming v Gabriel P Tumasonis | 6-2,7-5 |
| ITF Brazil F9 | 2014/10/11 12:30 | Breno Lodis v Gabriel P Tumasonis | 3-6,3-6 |