Round: 25 Ground: Clay
| ITF Netherlands F3 | 2017/07/04 10:00 | Marc Dijkhuizen v Guy Den Heijer | 6-3,2-6,6-1 |
| ITF Netherlands F2 | 2017/06/27 09:00 | Guy Den Heijer v Fred Simonsson | 4-6,4-6 |
| ITF Netherlands F1 | 2017/06/22 17:55 | Botic Van De Zandschulp v Guy Den Heijer | 6-3,6-2 |
| ITF Netherlands F1 | 2017/06/20 09:25 | Vincent Van Den Honert v Guy Den Heijer | 3-6,2-6 |
| ITF Portugal F3 | 2017/03/15 15:05 | Joao Monteiro v Guy Den Heijer | 6-0,7-6 |
| ITF Portugal F3 Qual | 2017/03/13 14:00 | Guy Den Heijer v Bart Van Den Berg | 6-2,7-5 |
| ITF Portugal F3 Qual | 2017/03/12 16:00 | Guy Den Heijer v Luis Diego Chavez Villalpando | 6-7,6-4,6-3 |
| ITF Portugal F3 Qual | 2017/03/12 10:00 | Guy Den Heijer v Sebastien Mentha | 6-3,6-2 |
| ITF Netherlands F3 | 2017/07/06 10:00 | Tim Van Terheijden v Scott Griekspoor | 2-6,1-6 |
| ITF Netherlands F3 | 2017/07/04 10:00 | Marko Tepavac v Tim Van Terheijden | 3-6,6-4,2-6 |
| ITF Netherlands F2 | 2017/06/28 15:00 | Jelle Sels v Tim Van Terheijden | 3-6,6-3,7-5 |
| ITF Netherlands F2 | 2017/06/27 09:00 | Sherif Sabry v Tim Van Terheijden | 1-6,3-6 |
| ITF Netherlands F1 | 2017/06/23 14:00 | Tim Van Terheijden v Maxime Chazal | 3-6,0-6 |
| ITF Netherlands F1 | 2017/06/23 14:00 | Tim Van Terheijden v Maxime Chazal | 3-6,0-5 |
| ITF Netherlands F1 | 2017/06/22 16:15 | Igor Sijsling v Tim Van Terheijden | 4-6,3-6 |
| ITF Netherlands F1 | 2017/06/20 10:40 | Vitalii Shcherba v Tim Van Terheijden | 2-6,6-3,3-6 |