| ITF Peru F1 | 09/27 16:35 | 27 | Connor Huertas del Pino v Mariano Kestelboim | 7-6,6-4 | |
| ITF Peru F1 | 09/26 15:00 | 26 | Nicolas Mejia v Mariano Kestelboim | 6-0,4-6,4-6 | |
| ITF Peru 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 Belgium F10 | 08/29 10:30 | 26 | Michael Geerts v Mariano Kestelboim | 6-4,6-1 | |
| ITF Belgium F10 | 08/28 08:00 | 25 | Valentin Guenther v Mariano Kestelboim | 3-6,1-6 | |
| ITF Netherlands F5 | 08/24 08:00 | 27 | [456] Manuel Guinard v Mariano Kestelboim [363] | 7-6,3-6,6-4 | |
| ITF Netherlands F5 | 08/22 08:00 | 26 | Max Houkes v Mariano Kestelboim | 3-6,4-6 | |
| ITF Netherlands F5 | 08/21 08:00 | 25 | Maikel Borg v Mariano Kestelboim | 4-6,4-6 | |
| ITF Netherlands F4 | 08/18 11:00 | 28 | Mariano Kestelboim v Alexander Lazov | 3-6,2-6 | |
| ITF Netherlands F4 | 08/17 09:00 | 27 | Mariano Kestelboim v Titouan Droguet | 6-4,2-6,6-1 | |
| ITF Netherlands F4 | 08/16 08:00 | 26 | Mariano Kestelboim v Andrew Watson | 6-3,6-2 | |
| ITF Netherlands F4 | 08/14 07:30 | 25 | Mariano Kestelboim v Bart Stevens | 6-4,4-6,6-0 | |
| ITF Austria F6 | 08/10 09:00 | 28 | [500] Alessandro Petrone v Mariano Kestelboim [368] | 3-6,7-6,7-6 | |
| ITF Austria F6 | 08/09 10:25 | 27 | Mariano Kestelboim v Mick Veldheer | 7-5,6-1 | |
| ITF Austria F6 | 08/08 10:55 | 26 | Mariano Kestelboim v Michael Weindl | 6-1,6-1 | |
| ITF Austria F6 | 08/06 12:15 | 25 | Mariano Kestelboim v Christopher Patzanovsky | 6-2,6-4 | |
| Challenger Prag | 07/21 11:45 | 45 | [455] Robin Stanek v Mariano Kestelboim [348] | 7-5,6-0 | |
| ITF Austria F3 | 07/18 09:30 | 26 | Mariano Kestelboim v Johannes Haerteis | 2-6,7-5,2-6 | |
| ITF Austria F3 | 07/17 14:35 | 25 | Mariano Kestelboim v Arklon H D Pino | 6-1,6-2 | |
| Challenger Braunschweig Qual | 07/08 10:55 | 54 | Marvin Netuschil v Mariano Kestelboim | 6-3,6-1 | |
| Challenger Braunschweig Qual | 07/07 12:30 | 46 | George Von Massow v Mariano Kestelboim | 4-6,6-2,3-6 | |
| ITF Czech Republic F4 | 06/26 10:20 | 25 | Mariano Kestelboim v Tadeas Paroulek | 5-7,3-6 | |
| ITF Hungary F4 | 06/12 10:20 | 25 | Tim Van Rijthoven v Mariano Kestelboim | 6-3,6-4 | |
| ITF Italy F6 | 04/03 13:55 | 25 | Mariano Kestelboim v Billy Harris | 4-6,1-6 | |
| ITF Tunisia F12 | 03/31 09:00 | 28 | [296] Hernan Casanova v Mariano Kestelboim [391] | 6-1,6-3 | |
| ITF Tunisia F12 | 03/30 08:30 | 27 | [391] Mariano Kestelboim v Clement Geens [463] | 6-1,6-3 | |
| ITF Tunisia F12 | 03/29 08:30 | 26 | Mariano Kestelboim v Tomislav Jotovski | 6-2,6-1 | |
| ITF Tunisia F12 | 03/28 14:00 | 25 | Mariano Kestelboim v Dan Dowson | 6-3,6-0 | |
| ITF Tunisia F11 | 03/20 08:30 | 25 | Juan Carlos Saez v Mariano Kestelboim | 6-2,6-3 |