Round: 62 Ground: Carpet indoor
| ITF Netherlands F6 | 2015/08/22 08:00 | Mats Hermans v Johann Willems | 1-6,4-6 |
| Challenger Sibiu Qual | 2016/09/17 07:00 | Johann Willems v David Pichler | 5-7,0-6 |
| ITF Romania F16 | 2016/09/10 08:35 | Claudio Fortuna v Johann Willems | 4-6,6-4,7-5 |
| ITF Romania F16 | 2016/09/09 12:50 | Johann Willems v Bogdan Borza | 2-6,6-4,6-4 |
| ITF Romania F16 | 2016/09/08 06:30 | Matteo De Vincentis v Johann Willems | 5-7,3-6 |
| ITF Romania F16 | 2016/09/07 14:25 | Johann Willems v Alexandru Vasile Manole | 6-3,6-1 |
| ITF Belgium F11 | 2016/08/24 10:55 | Johann Willems v Tom Farquharson | 5-7,2-6 |
| ITF Belgium F11 | 2016/08/23 08:00 | Johann Willems v Leny Mitjana | 6-4,6-2 |
| ITF Germany F11 | 2016/08/18 13:30 | Dominik Boehler v Johann Willems | 6-2,7-5 |
| ITF Estonia F4 | 2016/11/04 23:00 | Mats Hermans v Timur Kiyamov | 2-6,4-6 |
| ITF Estonia F3 | 2016/10/30 11:30 | Bart Stevens v Mats Hermans | 6-7,6-1,6-3 |
| ITF Estonia F3 | 2016/10/29 13:00 | Mats Hermans v Sergey Dorozhkin | 6-4,6-3 |
| ITF Estonia F2 | 2016/10/25 09:15 | Mats Hermans v Patrik Fabian | 1-6,2-6 |
| ITF Netherlands F7 | 2016/08/28 10:00 | Frederik Press v Mats Hermans | 1-6,7-6,6-4 |
| ITF Netherlands F7 | 2016/08/27 08:00 | Ruben Konings v Mats Hermans | 6-3,5-7,2-6 |
| ITF Netherlands F6 | 2016/08/23 10:05 | Mats Hermans v Geoffrey Blancaneaux | 1-6,1-6 |
| ITF Netherlands F6 | 2016/08/20 08:00 | Tim Van Der Horst v Mats Hermans | 3-6,4-6 |