| ITF M15 Córdoba | 04/06 14:45 | 25 | Santiago De La Fuente v Mariano Kestelboim | 2-6,1-6 | |
| ITF M15 Villa María | 04/02 13:55 | 27 | [394] Mariano Kestelboim v Hernan Casanova [378] | 6-1,4-6,2-6 | |
| ITF M15 Villa María | 04/01 15:30 | 26 | Mariano Kestelboim v Benjamin Dhoe | 6-3,6-3 | |
| ITF M15 Villa María | 03/31 15:10 | 25 | Mariano Kestelboim v Franco Emanuel Egea | 6-1,6-4 | |
| ATP Cordoba | 02/20 13:00 | 14 | [402] Mariano Kestelboim v Camilo Ugo Carabelli [349] | 0-6,4-6 | |
| Challenger de Concepción | 02/15 14:00 | 19 | [402] Mariano Kestelboim v Vitaliy Sachko [403] | 3-6,1-6 | |
| Challenger de Concepción | 02/14 16:00 | 14 | Guido Ivan Justo v Mariano Kestelboim | 3-6,6-4,3-6 | |
| Challenger de Concepción | 02/14 16:00 | 14 | Camilo Ugo Carabelli v Mariano Kestelboim | Cancelled | |
| Challenger de Sao Paulo | 11/22 14:00 | 164 | [386] Camilo Ugo Carabelli v Mariano Kestelboim [416] | 6-3,6-2 | |
| Challenger de Sao Paulo | 11/21 14:00 | 64 | Paulo A S Dos Santos v Mariano Kestelboim | 1-6,4-6 | |
| ITF M15 Quinta Do Lago | 11/03 09:30 | 25 | Edoardo Graziani v Mariano Kestelboim | 1-6,6-2,6-1 | |
| ITF M25 Vale Do Lobo | 10/27 09:00 | 44 | Mariano Kestelboim v Raphael Baltensperger | 3-6,3-6 | |
| ITF M25 Vale Do Lobo | 10/26 10:45 | 44 | Mariano Kestelboim v Afonso Salgado | 6-0,6-0 | |
| ITF M25 Vale Do Lobo | 10/25 12:30 | 44 | Mariano Kestelboim v Tiago Torres | 6-4,6-3 | |
| ITF M15 Curtea de Arges | 09/16 12:55 | 25 | [399] Mariano Kestelboim v Franco Agamenone [420] | 3-6,2-6 | |
| ITF M25 Hurlingham | 03/05 15:00 | 26 | [465] Mariano Kestelboim v Facundo Arguello [341] | 3-6,2-6 | |
| ITF M25 Hurlingham | 03/04 16:05 | 25 | Alex Barrena v Mariano Kestelboim | 4-6,3-6 | |
| ITF M25 Río Cuarto | 02/28 16:30 | 27 | [500] Mariano Kestelboim v Franco Agamenone [490] | 5-7,5-7 | |
| ITF M25 Río Cuarto | 02/27 13:30 | 26 | Guido Ivan Justo v Mariano Kestelboim | Retired | |
| ITF M25 Río Cuarto | 02/25 15:50 | 25 | Daniel Dutra Da Silva v Mariano Kestelboim | 6-7,6-3,3-6 | |
| ITF M25 Punta del Este | 02/19 16:25 | 26 | [487] Mariano Kestelboim v Gonzalo Villanueva [386] | 1-6,7-6,2-6 | |
| ITF M25 Punta del Este | 02/18 17:30 | 25 | Alejo Vilaro v Mariano Kestelboim | 2-6,6-4,2-6 | |
| ITF M25 Lima | 02/15 15:00 | 28 | [346] Marcelo Tomas Barrios Vera v Mariano Kestelboim [493] | 6-3,4-6,7-5 | |
| ITF M25 Lima | 02/14 16:00 | 27 | Federico Zeballos v Mariano Kestelboim | 2-6,1-6 | |
| ITF M25 Lima | 02/13 18:15 | 26 | Mariano Kestelboim v Thiago Agustin Tirante | 5-7,7-6,6-4 | |
| ITF M25 Lima | 02/11 15:00 | 25 | [473] Rafael Matos v Mariano Kestelboim [493] | 5-7,6-4,2-6 | |
| ITF M25 Lima | 02/06 14:55 | 26 | [347] Marcelo Tomas Barrios Vera v Mariano Kestelboim [492] | 6-4,6-3 | |
| ITF M25 Lima | 02/05 14:50 | 25 | [492] Mariano Kestelboim v Rafael Matos [472] | 6-4,6-3 | |
| ITF M25 Lima | 02/03 16:35 | 44 | Mariano Kestelboim v Alejandro Mendoza | 6-0,6-0 | |
| ITF M25 Lima | 02/02 18:00 | 44 | Mariano Kestelboim v Jesus Echevarri | 6-1,6-0 |