| ITF M15 Tabarka | 03/06 14:05 | 25 | Mariano Kestelboim v Mathieu Perchicot | 4-6,6-1,6-7 | |
| ITF Chile F3 - Masculino | 11/27 14:00 | 25 | Facundo Mena v Mariano Kestelboim | 6-2,6-4 | |
| ITF Chile F2 | 11/21 16:00 | 26 | Arklon H D Pino v Mariano Kestelboim | 5-7,7-5,6-2 | |
| ITF Chile F2 | 11/20 20:45 | 25 | Javier Naser v Mariano Kestelboim | 3-6,4-6 | |
| ITF Argentina F9 | 11/17 13:00 | 29 | Mariano Kestelboim v Maximiliano Estevez | 6-2,5-7,6-2 | |
| ITF Argentina F9 | 11/16 15:00 | 28 | Mariano Kestelboim v José Pereira | Retired | |
| ITF Argentina F9 | 11/15 15:45 | 27 | Mariano Kestelboim v Santiago Besada | 6-1,6-0 | |
| ITF Argentina F9 | 11/14 13:00 | 26 | Mariano Kestelboim v Gabriel A Hidalgo | 6-4,6-1 | |
| ITF Argentina F9 | 11/13 16:40 | 25 | Mariano Kestelboim v Mariano Navone | 6-3,6-1 | |
| ITF Argentina F8 | 11/11 13:00 | 29 | Santiago F. R. Taverna v Mariano Kestelboim | 3-6,6-4,6-4 | |
| ITF Argentina F8 | 11/09 14:30 | 28 | Agustin Velotti v Mariano Kestelboim | 5-7,4-6 | |
| ITF Argentina F8 | 11/08 14:00 | 27 | Leonardo Aboian v Mariano Kestelboim | 2-6,4-6 | |
| ITF Argentina F8 | 11/07 14:45 | 26 | Boruch Skierkier v Mariano Kestelboim | 1-6,0-6 | |
| ITF Argentina F8 | 11/06 17:00 | 25 | Lorenzo Gagliardo v Mariano Kestelboim | 3-6,2-6 | |
| ITF Argentina F7 | 11/02 14:00 | 27 | Maximiliano Estevez v Mariano Kestelboim | 7-6,6-3 | |
| ITF Argentina F7 | 10/31 23:50 | 26 | Leonardo Aboian v Mariano Kestelboim | 3-6,2-6 | |
| ITF Argentina F7 | 10/29 19:55 | 25 | Michel Vernier v Mariano Kestelboim | 4-6,6-0,4-6 | |
| ITF Perú F3 | 10/13 15:30 | 28 | Mariano Kestelboim v Bastian Malla | 4-6,3-6 | |
| ITF Perú F3 | 10/12 16:00 | 27 | Gonzalo Villanueva v Mariano Kestelboim | 5-7,7-6,3-6 | |
| ITF Perú F3 | 10/11 15:00 | 26 | Jorge Panta v Mariano Kestelboim | 3-6,4-6 | |
| ITF Perú F3 | 10/09 16:30 | 25 | Duilio Vallebuona v Mariano Kestelboim | 0-6,2-6 | |
| ITF Perú F2 | 10/05 15:30 | 27 | Mariano Kestelboim v Diego Hidalgo | 4-6,3-6 | |
| ITF Perú F2 | 10/03 15:30 | 26 | Mariano Kestelboim v Tomas Farjat | 6-1,6-1 | |
| ITF Perú F2 | 10/02 15:00 | 25 | Mariano Kestelboim v Rodrigo Sanchez | 3-6,6-3,6-2 | |
| ITF Perú F1 | 09/27 16:35 | 27 | Connor Huertas del Pino v Mariano Kestelboim | 7-6,6-4 | |
| ITF Perú F1 | 09/26 15:00 | 26 | Nicolas Mejia v Mariano Kestelboim | 6-0,4-6,4-6 | |
| ITF Perú F1 | 09/25 15:00 | 25 | Joao Ferreira v Mariano Kestelboim | 6-2,2-6,4-6 | |
| ITF Argentina F6 | 09/18 15:00 | 25 | [179] Franco Agamenone v Mariano Kestelboim [371] | 6-3,1-6,7-5 | |
| ITF Bélgica F10 | 08/29 10:30 | 26 | Michael Geerts v Mariano Kestelboim | 6-4,6-1 | |
| ITF Bélgica F10 | 08/28 08:00 | 25 | Valentin Guenther v Mariano Kestelboim | 3-6,1-6 |