Round: 54 Ground: Carpet indoor
| ITF Netherlands F4 | 2017/07/13 13:10 | Marko Tepavac v Johann Willems | 7-6,6-1 |
| ITF Netherlands F4 | 2017/07/11 09:30 | Johann Willems v Bastian Wagner | 6-2,3-6,6-4 |
| ITF Germany F6 | 2017/07/04 11:00 | Jose Pereira v Johann Willems | 4-6,6-3,6-2 |
| ITF Germany F5 | 2017/06/30 12:40 | Antoine Hoang v Johann Willems | 6-3,6-2 |
| ITF Germany F5 | 2017/06/29 09:00 | Felipe M Sarrasague v Johann Willems | 6-7,6-7 |
| ITF Germany F5 | 2017/06/28 09:00 | Johann Willems v Denys Mylokostov | 2-6,7-5,6-1 |
| ITF Germany F5 | 2017/06/26 08:00 | Johann Willems v Adrian Oetzbach | 4-6,6-3,6-4 |
| ITF Belgium F1 | 2017/06/20 10:00 | Johann Willems v Miomir Kecmanovic | 6-2,4-6,1-6 |
| ITF Slovakia F3 | 2017/08/09 12:00 | Olexiy Kolisnyk v Lukas Vejvara | 3-6,6-3,6-2 |
| ITF Slovakia F3 | 2017/08/08 08:00 | Lukas Vejvara v Kris Krawcewicz | 6-4,6-1 |
| ITF Slovakia F3 | 2017/08/07 08:00 | Lukas Vejvara v Nikolas Lahky | 6-3,6-2 |
| Challenger Prague Qual | 2017/07/22 09:20 | Lenny Hampel v Lukas Vejvara | 6-0,6-1 |
| ITF Austria F3 | 2017/07/15 07:00 | Lukas Vejvara v Gilbert S K Junior | 6-2,0-6,5-7 |
| ITF Czech Republic F5 | 2017/07/10 14:45 | Petr Nouza v Lukas Vejvara | 6-0,6-4 |
| ITF Czech Republic F5 Qual | 2017/07/09 09:00 | Lukas Vejvara v Ivan Yatsuk | 7-5,6-4 |
| ITF Czech Republic F5 Qual | 2017/07/08 08:00 | Lukas Vejvara v Dylan Scott | 6-2,6-0 |