Round: 26 Ground: Hardcourt outdoor
| Istanbul, Turkey | 2016/09/13 11:30 | Nikola Milojevic v Marsel Ilhan | 7-6,6-7,1-6 |
| US Open, New York, USA, Qualifying | 2016/08/23 21:30 | Marsel Ilhan v Guido Andreozzi | 3-6,1-6 |
| Challenger Prague 2 | 2016/07/27 11:30 | Martin Klizan v Marsel Ilhan | 6-3,6-4 |
| Coupe Davis | 2016/07/17 10:00 | Damir Dzumhur v Marsel Ilhan | 6-3,6-0,7-6 |
| Coupe Davis | 2016/07/15 13:15 | Mirza Basic v Marsel Ilhan | 6-7,7-5,6-2,3-6,5-7 |
| Challenger Todi | 2016/07/06 16:30 | Miljan Zekic v Marsel Ilhan | 7-5,6-1 |
| Wimbledon Qual | 2016/06/21 10:50 | Marsel Ilhan v Munoz-De la Nava, Daniel | 3-6,4-6 |
| Open de France | 2016/05/24 10:50 | Marsel Ilhan v Darcis, Steve | 3-6,4-6,0-6 |
| Istanbul, Turkey | 2016/09/13 09:20 | Mertens, Yannick v Yalcinkale, Barkin | 6-0,6-0 |
| Challenger St Remy | 2016/09/08 09:00 | Marco Trungelliti v Mertens, Yannick | 4-6,6-3,6-3 |
| Challenger St Remy | 2016/09/06 09:00 | Mertens, Yannick v Menendez-Maceiras, Adrian | 6-4,5-7,6-4 |
| ITF Russia F7 | 2016/09/01 10:00 | Elgin, M. v Mertens, Yannick | 6-4,6-7,6-4 |
| ITF Russia F7 | 2016/08/31 08:00 | Sekulic, Milos v Mertens, Yannick | 4-6,1-6 |
| ITF Russia F7 | 2016/08/30 09:15 | Ivan Liutarevich v Mertens, Yannick | 4-6,4-6 |
| Challenger Meerbusch | 2016/08/17 11:00 | Maximilian Marterer v Mertens, Yannick | 6-2,6-4 |
| Challenger Meerbusch | 2016/08/15 15:45 | Alexey Vatutin v Mertens, Yannick | 6-1,6-7,3-6 |