Round: 25 Ground: Clay
| ITF Colombia F5 | 2015/07/08 17:20 | Gomez, Alejandro v Makiguchi, Ryusei | 3-6,6-4,6-1 |
| ITF Colombia F4 | 2015/06/29 16:30 | Makiguchi, Ryusei v Olivares, Jose | 4-6,4-6 |
| ITF Argentina F7 | 2015/05/25 16:30 | Makiguchi, Ryusei v Urzua-Rivera, Ricardo | 5-7,3-6 |
| ITF Argentina F6 | 2015/05/18 15:00 | Makiguchi, Ryusei v Ameal, Juan Ignacio | 6-7,4-6 |
| Cali, Colombia | 2015/05/05 16:40 | Romboli, Fernando v Makiguchi, Ryusei | 1-6,6-3,7-5 |
| ITF Argentina F3 | 2015/03/23 14:00 | Makiguchi, Ryusei v Federico Coria | 2-6,3-6 |
| ITF Argentina F2 | 2015/03/17 19:30 | Banzer, Rodrigo v Makiguchi, Ryusei | 3-6,2-6 |
| ITF Argentina F1 | 2015/03/12 15:00 | Nicolas Kicker v Makiguchi, Ryusei | 6-4,6-0 |
| ITF Argentina F8 | 2015/08/10 13:30 | Oscar Jose Gutierrez v Moreno, Federico | 6-4,7-6 |
| ITF Argentina F8 | 2015/08/08 12:00 | Oscar Jose Gutierrez v Suarez Gonzalez, Agustin | 6-1,6-3 |
| ITF Brazil F3 | 2015/06/23 14:30 | Oscar Jose Gutierrez v Camilo, Rafael | 3-6,6-0,4-6 |
| ITF Brazil F3 | 2015/06/21 18:30 | Oscar Jose Gutierrez v Moreno, Federico | 6-3,2-6,6-1 |
| ITF Brazil F2 | 2015/06/19 15:40 | Turini, Thales v Oscar Jose Gutierrez | 7-6,6-3 |
| ITF Brazil F2 | 2015/06/18 17:55 | Oscar Jose Gutierrez v Miele, Andre | 6-1,6-4 |
| ITF Brazil F2 | 2015/06/17 14:40 | Oscar Jose Gutierrez v Severino, Carlos Eduardo | 4-6,7-6,6-1 |
| ITF Brazil F2 | 2015/06/16 12:00 | Oscar Jose Gutierrez v Lodis, Breno | 6-1,6-0 |