Round: 25 Ground: Clay
| ITF Belgium F5 | 2015/07/05 10:00 | van Der Linden, Lennert v Bogaert, Dennis | 7-6,6-4 |
| ITF Belgium F4 | 2015/07/01 14:25 | van Der Linden, Lennert v Tabatruong, Maxime | 2-6,1-6 |
| ITF Belgium F4 Qual | 2015/06/28 10:00 | van Der Linden, Lennert v Stefan Menichella | 3-6,6-4,6-3 |
| ITF Georgia F2 | 2015/05/27 08:45 | van Der Linden, Lennert v Aleksandre Metreveli | 1-6,4-6 |
| ITF Georgia F2 | 2015/05/24 09:30 | Wojcik, Yann v van Der Linden, Lennert | 1-6,3-6 |
| ITF Georgia F2 | 2015/05/23 08:30 | van Der Linden, Lennert v Franck, Axel | 6-1,6-1 |
| ITF Georgia F2 | 2015/05/21 07:55 | van Der Linden, Lennert v Tsivadze, George | 6-3,6-2 |
| ITF Georgia F2 | 2015/05/20 12:40 | Matias Franco Descotte v van Der Linden, Lennert | 2-6,5-7 |
| ITF Finland F2 | 2015/08/12 09:00 | Raab, Demian v Gonzalo Lama | 3-6,4-6 |
| ITF Finland F2 | 2015/08/11 11:50 | Jonathan Stenberg v Raab, Demian | 3-6,4-6 |
| ITF Netherlands F2 | 2015/06/24 09:00 | Raab, Demian v Alexey Vatutin | 6-3,4-6,2-6 |
| ITF Netherlands F2 Qual | 2015/06/23 10:00 | Raab, Demian v Van Terheijden, Tim | 6-1,6-3 |
| ITF Netherlands F2 Qual | 2015/06/21 09:15 | Raab, Demian v Jaensch-Mueller, Vincent | 6-4,6-1 |
| ITF Belgium F2 Qual | 2015/06/13 10:00 | Raab, Demian v Hoeveler, Leon | 6-1,6-1 |
| ITF Spain F16 | 2015/06/03 15:30 | Alcaraz Ivorra, Albert v Raab, Demian | 6-3,6-4 |
| ITF Spain F16 | 2015/06/02 09:00 | Raab, Demian v Plaza, Santiago | 6-3,6-3 |