| Taça Davis | 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 |
| Taça Davis | 2015/09/20 12:00 | Frederik Nielsen v Roberto Bautista-Agut | 3-6,4-6 |
| Taça Davis | 2015/09/18 16:20 | Frederik Nielsen v David Ferrer | 1-6,5-7,2-6 |
| ATP - Newport - Qualificação | 2015/07/11 22:45 | Adrien Bossel v Frederik Nielsen | 6-1,6-3 |
| ITF - Grécia F4 | 2015/04/14 09:10 | Joe Salisbury v Frederik Nielsen | 7-6,6-4 |
| Challenger - Saint-Brieuc | 2015/04/07 14:30 | Frederik Nielsen v Jesse Huta Galung | 3-6,6-7 |
| ITF - Suécia F4 | 2015/09/26 11:00 | Markus Eriksson v Adrian Sikora | 6-4,3-6,6-3 |
| ITF - Suécia F4 | 2015/09/25 14:30 | James Marsalek v Markus Eriksson | 7-6,2-6,4-6 |
| ITF - Suécia F4 | 2015/09/24 12:00 | Stefano Napolitano v Markus Eriksson | 3-6,6-7 |
| ITF - Suécia F4 | 2015/09/23 12:00 | Daniel Appelgren v Markus Eriksson | 4-6,6-1,5-7 |
| ITF - Suécia F4 | 2015/09/21 13:20 | Eero Vasa v Markus Eriksson | 2-6,4-6 |
| ITF - Polónia F4 | 2015/09/03 14:30 | Grzegorz Panfil v Markus Eriksson | 4-6,7-6,6-2 |
| ITF - Polónia F4 | 2015/09/02 08:50 | Karol Drzewiecki v Markus Eriksson | 5-7,1-6 |
| ITF - Polónia F4 | 2015/08/31 11:00 | Michal Dembek v Markus Eriksson | 2-6,3-6 |