Round: 27 Ground: Hardcourt outdoor
| ITF France F17 | 2015/09/09 12:00 | Desein, Niels v Antoine Hoang | 7-5,6-4 |
| ITF France F17 | 2015/09/08 13:05 | Desein, Niels v Cancel, Thibault | 7-6,6-1 |
| US Open, New York, USA, Qualifying | 2015/08/26 19:00 | Mitchell Krueger v Desein, Niels | 6-1,6-2 |
| ITF Belgium F8 | 2015/07/29 08:50 | Desein, Niels v Alexey Vatutin | 4-6,5-7 |
| Newport, USA | 2015/07/14 15:00 | Desein, Niels v Lacko, Lukas | 3-6,6-3,2-6 |
| Challenger Todi | 2015/07/07 13:00 | Desein, Niels v Mathias Bourgue | 5-7,1-6 |
| ITF Netherlands F3 | 2015/07/02 10:00 | Desein, Niels v Banes, Maverick | 6-7,2-6 |
| ITF Netherlands F3 | 2015/07/01 10:00 | Desein, Niels v Jaede, Jack | 6-4,6-2 |
| ITF France F17 | 2015/09/09 10:00 | Ramiaramanan, Lofo v Sidorenko, Alexandre | 3-6,2-6 |
| ITF France F17 | 2015/09/08 11:35 | Reboul, Fabien v Sidorenko, Alexandre | 2-6,0-6 |
| ITF Belgium F13 | 2015/09/03 08:30 | Goncalo Oliveira v Sidorenko, Alexandre | 6-4,7-6 |
| ITF Belgium F13 | 2015/08/31 09:00 | Sidorenko, Alexandre v Cristian Garin | 6-3,7-5 |
| ITF France F16 | 2015/08/02 16:30 | Guez, David v Sidorenko, Alexandre | 6-3,6-4 |
| ITF France F16 | 2015/08/01 17:05 | Laurent Lokoli v Sidorenko, Alexandre | 3-6,1-6 |
| ITF France F16 | 2015/07/31 16:40 | Eremin, Edoardo v Sidorenko, Alexandre | 4-6,4-6 |
| ITF France F16 | 2015/07/30 15:00 | Soler, Joan v Sidorenko, Alexandre | 4-6,6-7 |