| ITF Turkey F14 | 2014/03/23 09:35 | Yannick Mertens v Jan Mertl | 6-7,6-4,4-6 |
| ITF France F21 | 2016/10/07 13:25 | Gregoire Jacq v Jan Mertl | 7-6,6-7,6-3 |
| ITF France F21 | 2016/10/06 16:30 | Maxence Beauge v Jan Mertl | 7-6,3-6,3-6 |
| ITF France F21 | 2016/10/05 10:50 | Nino Portales v Jan Mertl | 6-7,3-6 |
| ATP St Petersburg Qual | 2016/09/19 09:20 | Radu Albot v Jan Mertl | 6-3,6-4 |
| ATP St Petersburg Qual | 2016/09/18 10:45 | Nikola Cacic v Jan Mertl | 4-6,3-6 |
| Challenger Szczecin | 2016/09/13 13:50 | Stefano Napolitano v Jan Mertl | 4-6,6-3,6-2 |
| Challenger Seville | 2016/09/06 09:00 | Jan Mertl v Andrej Martin | 5-7,3-6 |
| Challenger Manerbio | 2016/08/23 13:05 | Jan Mertl v Taro Daniel | 6-7,2-6 |
| Challenger Tashkent | 2016/10/12 06:50 | Yannick Mertens v Konstantin Kravchuk | 2-6,4-6 |
| Challenger Tashkent | 2016/10/10 06:35 | Yannick Mertens v Shonigmatjon Shofayziyev | 6-4,6-2 |
| ITF Portugal F11 | 2016/10/02 10:00 | Yannick Mertens v Stefanos Tsitsipas | 3-6,6-4,2-6 |
| ITF Portugal F11 | 2016/10/01 11:00 | Yannick Mertens v Miguel Semedo | 6-1,6-3 |
| ITF Portugal F11 | 2016/09/30 13:00 | Yannick Mertens v Tiago Cacao | 6-3,7-6 |
| ITF Portugal F11 | 2016/09/29 14:05 | Yannick Mertens v Francisco Cabral | 6-2,6-2 |
| ITF Portugal F11 | 2016/09/28 13:35 | Yannick Mertens v Joao Monteiro | 6-3,6-4 |
| ITF France F19 | 2016/09/24 14:30 | Robin Kern v Yannick Mertens | 6-3,6-4 |