Round: 60 Ground: Clay
| ITF Argentina F12 Qual | 2015/09/12 12:30 | Agustin Suarez Gonzalez v Federico Juan Aguilar | 6-1,6-2 |
| ITF Greece F10 Qual | 2015/11/01 11:00 | Matvey Khomentovskiy v Hunter Callahan | 4-6,7-5,6-3 |
| ITF Greece F9 Qual | 2015/10/24 09:00 | Stephanos Schinas v Hunter Callahan | 4-6,7-5,6-3 |
| Challenger Columbus Qual | 2015/09/20 15:20 | Peter Kobelt v Hunter Callahan | 6-4,6-1 |
| ITF Canada F9 Qual | 2015/09/15 14:00 | Filip Peliwo v Hunter Callahan | 6-4,6-2 |
| ITF Canada F9 Qual | 2015/09/08 15:30 | Damon Gooch v Hunter Callahan | 7-5,7-6 |
| ITF USA F25 | 2015/08/12 14:00 | Ramkumar Ramanathan v Hunter Callahan | 4-6,6-2,6-1 |
| ITF USA F25 Qual | 2015/08/10 14:00 | JC Aragone v Hunter Callahan | 5-7,3-6 |
| ITF USA F25 Qual | 2015/08/09 14:00 | Aidan Talcott v Hunter Callahan | 1-6,2-6 |