Round: 25 Ground: Clay
| ITF Netherlands F4 | 2017/07/13 13:10 | 테파바크, 마르코 v Willems, Johann | 7-6,6-1 |
| ITF Netherlands F4 | 2017/07/11 09:30 | Willems, Johann v Wagner, Bastian | 6-2,3-6,6-4 |
| ITF Germany F6 | 2017/07/04 11:00 | Pereira, Jose v Willems, Johann | 4-6,6-3,6-2 |
| ITF Germany F5 | 2017/06/30 12:40 | 호앙, 안토인 v Willems, Johann | 6-3,6-2 |
| ITF Germany F5 | 2017/06/29 09:00 | 마르티네즈 사라가게, 펠리페 v Willems, Johann | 6-7,6-7 |
| ITF Germany F5 | 2017/06/28 09:00 | Willems, Johann v Mylokostov, Denys | 2-6,7-5,6-1 |
| ITF Germany F5 | 2017/06/26 08:00 | Willems, Johann v 오에츠바치, 아드리안 | 4-6,6-3,6-4 |
| ITF Belgium F1 | 2017/06/20 10:00 | Willems, Johann v 케크마노비치, 미오밀 | 6-2,4-6,1-6 |
| ITF Belgium F8 Qual | 2017/08/07 08:00 | van Den Brink, Floris v 보룸, 찰레스 | 6-1,4-6,1-6 |
| ITF Belgium F8 Qual | 2017/08/06 07:30 | van Den Brink, Floris v 도에링, 마이크 | 6-4,6-2 |
| ITF Belgium F8 Qual | 2017/08/05 09:30 | van Den Brink, Floris v Broekhof, Nick | 7-5,6-1 |
| ITF Germany F9 | 2017/07/30 10:30 | van Den Brink, Floris v 세비엘트, 팀 | 2-6,4-6 |
| ITF Belgium F6 | 2017/07/25 14:45 | van Den Brink, Floris v Hocevar, Ricardo | 1-6,1-6 |
| ITF Belgium F6 | 2017/07/22 11:00 | van Den Brink, Floris v Esses, Dane | 6-2,6-0 |
| ITF Belgium F5 | 2017/07/19 14:00 | van Den Brink, Floris v 라캐트, 클로리안 | 2-6,7-5,6-7 |
| ITF Belgium F5 | 2017/07/16 08:00 | van Den Brink, Floris v Kohl, Cristopher | 6-2,6-3 |