Ground: Clay
| ITF Argentina F6 | 2015/05/18 15:00 | Ryusei Makiguchi v Juan Ignacio Ameal | 6-7,4-6 |
| Challenger Cali 2 | 2015/05/05 16:40 | Fernando Romboli v Ryusei Makiguchi | 1-6,6-3,7-5 |
| ITF Argentina F3 | 2015/03/23 14:00 | Ryusei Makiguchi v Federico Coria | 2-6,3-6 |
| ITF Argentina F2 | 2015/03/17 19:30 | Rodrigo Banzer v Ryusei Makiguchi | 3-6,2-6 |
| ITF Argentina F1 | 2015/03/12 15:00 | Nicolas Kicker v Ryusei Makiguchi | 6-4,6-0 |
| ITF Argentina F1 | 2015/03/11 19:00 | Franco Emanuel Egea v Ryusei Makiguchi | 2-6,3-6 |
| ITF Argentina F1 | 2015/03/10 16:45 | Alexandre Tsuchiya v Ryusei Makiguchi | 6-0,4-6,3-6 |
| Challenger Morelos Qual | 2015/02/15 19:00 | Connor Smith v Ryusei Makiguchi | 7-6,6-2 |
| ITF Argentina F6 | 2015/05/20 15:30 | Nicolas Kicker v R. Urzua-Rivera | 6-1,6-2 |
| ITF Argentina F6 | 2015/05/19 12:30 | R. Urzua-Rivera v Hernan Casanova | 7-5,1-6,7-5 |
| ITF Argentina F5 | 2015/05/14 14:00 | R. Urzua-Rivera v Nicolas Alberto Arreche | 4-6,6-2,1-6 |
| ITF Argentina F5 | 2015/05/13 13:30 | R. Urzua-Rivera v Mariano Kestelboim | 6-3,3-6,7-6 |
| ITF Argentina F5 | 2015/05/12 16:50 | Juan Pablo Paz v R. Urzua-Rivera | 4-6,7-5,1-6 |
| ITF Argentina F4 | 2015/05/07 16:30 | R. Urzua-Rivera v Juan Pablo Paz | 4-6,1-6 |
| ITF Argentina F4 | 2015/05/06 18:40 | Nicolas Alberto Arreche v R. Urzua-Rivera | 4-6,3-6 |
| ITF Argentina F4 | 2015/05/05 18:45 | R. Urzua-Rivera v Franco Feitt | 6-3,6-0 |