Round: 45 Ground: Hardcourt indoor
| Challenger Knoxville | 2015/11/10 16:30 | Frederik Nielsen v James Duckworth | 6-7,4-6 |
| Challenger Charlottesville | 2015/11/05 18:35 | Tommy Paul v Frederik Nielsen | 6-3,6-3 |
| Challenger Charlottesville | 2015/11/04 16:00 | Frederik Nielsen v Blaz Kavcic | 6-3,5-7,6-4 |
| Davis Cup | 2015/11/01 12:00 | Frederik Nielsen v Markus Eriksson | 6-2,7-6,7-6 |
| Davis Cup | 2015/10/30 20:05 | Frederik Nielsen v Mikael Ymer | 5-7,3-6,4-6 |
| Challenger Fairfield | 2015/10/12 22:05 | James McGee v Frederik Nielsen | 7-6,6-3 |
| Challenger Tiburon | 2015/09/29 20:55 | Mackenzie McDonald v Frederik Nielsen | 6-4,6-4 |
| Davis Cup | 2015/09/20 12:00 | Frederik Nielsen v Roberto Bautista-Agut | 3-6,4-6 |
| ITF Germany F17 | 2015/10/25 12:00 | Jeremy Jahn v Robin Kern | 6-3,6-3 |
| ITF Germany F17 | 2015/10/24 11:20 | Mats Moraing v Jeremy Jahn | 6-2,4-6,3-6 |
| ITF Germany F17 | 2015/10/23 10:30 | Jeremy Jahn v Niels Lootsma | 6-3,6-3 |
| ITF Germany F17 | 2015/10/22 11:45 | Pascal Meis v Jeremy Jahn | 6-7,1-6 |
| ITF Germany F17 | 2015/10/21 15:50 | Jeremy Jahn v Johannes Haerteis | 6-1,7-6 |
| ITF France F19 | 2015/09/27 13:00 | Maxime Authom v Jeremy Jahn | 6-3,6-4 |
| ITF France F19 | 2015/09/26 14:25 | Jeremy Jahn v David Guez | 6-2,6-4 |
| ITF France F19 | 2015/09/25 14:00 | Jeremy Jahn v Yann Marti | 6-4,6-4 |