| Challenger Orleans | 2015/10/01 11:55 | Marsel Ilhan v Kenny de Schepper | 6-7,4-6 |
| Challenger Orleans | 2015/09/29 14:00 | Marsel Ilhan v Enzo Couacaud | 6-1,6-2 |
| US Open | 2015/09/02 19:15 | Benoit Paire v Marsel Ilhan | 6-3,3-6,6-4,6-3 |
| ATP Cincinnati Qual | 2015/08/16 20:15 | Marsel Ilhan v Thanasi Kokkinakis | 4-6,6-2,4-6 |
| ATP Cincinnati Qual | 2015/08/15 20:10 | Marsel Ilhan v Nikoloz Basilashvili | 4-6,6-4,7-6 |
| ATP Båstad | 2015/07/21 12:05 | Ernests Gulbis v Marsel Ilhan | 6-2,6-0 |
| Davis Cup | 2015/07/17 09:00 | Marsel Ilhan v Egor Gerasimov | 6-7,4-6,6-3,6-2,9-7 |
| Wimbledon | 2015/07/01 14:30 | Marsel Ilhan v Kevin Anderson | 7-6,6-7,4-6,4-6 |
| ITF Greece F8 | 2015/10/21 07:55 | Matteo Berrettini v Alexandar Lazarov | 6-4,6-2 |
| ITF Greece F7 | 2015/10/13 07:00 | Alexandar Lazarov v Andre Biro | 5-7,4-6 |