Round: 25 Ground: Hardcourt outdoor
| ITF Qatar F4 Qual | 2017/12/04 12:00 | Saida'lo Saidkarimov v Guy Den Heijer | 1-6,2-6 |
| ITF Qatar F4 Qual | 2017/12/03 15:10 | Quentin Folliot v Guy Den Heijer | 4-6,2-6 |
| ITF Tunisia F33 | 2017/10/31 12:30 | Guy Den Heijer v Gabriel Petit | 3-6,5-7 |
| ITF Tunisia F32 | 2017/10/25 08:30 | Guy Den Heijer v Steven Diez | 3-6,2-6 |
| ITF Tunisia F31 | 2017/10/15 10:30 | Guy Den Heijer v Vlad Andrei Dancu | 2-6,6-1,4-6 |
| ITF Belgium F12 | 2017/09/06 12:00 | Guy Den Heijer v Clement Geens | 3-6,5-7 |
| ITF Netherlands F7 | 2017/09/01 09:00 | Robin Stanek v Guy Den Heijer | 7-6,6-0 |
| ITF Netherlands F7 | 2017/08/30 11:20 | Guy Den Heijer v Colin Van Beem | 6-4,6-3 |
| ITF Greece F9 | 2017/11/15 13:30 | Aliaksandr Liaonenka v Milan Drinic | 7-6,6-1 |
| ITF Greece F8 | 2017/11/07 10:10 | Vit Kopriva v Milan Drinic | 2-6,6-4,6-1 |
| ITF Greece F7 | 2017/11/03 11:00 | Milan Drinic v Billy Harris | 1-6,6-7 |
| ITF Greece F7 | 2017/11/02 08:00 | Adrian Bodmer v Milan Drinic | 6-2,3-6,4-6 |
| ITF Greece F7 | 2017/11/01 08:00 | Milan Drinic v Marc-Andrea Huesler | 6-4,6-3 |
| ITF Greece F6 | 2017/10/26 10:40 | Milan Drinic v Tallon Griekspoor | 2-6,1-6 |
| ITF Greece F6 | 2017/10/25 07:00 | Milan Drinic v Alexandros Skorilas | 2-6,7-6,6-3 |
| Challenger Banja Luka Qual | 2017/09/10 11:20 | Lucas Miedler v Milan Drinic | 6-3,6-3 |