Stadium: Wisla Centrum 2 Round: 27 Ground: Clay
| ITF Poland F1 | 2018/05/03 09:00 | Guy Den Heijer v Piotr Grynkowski | 6-1,6-2 |
| ITF Greece F4 | 2018/03/18 09:30 | Guy Den Heijer v Duje Ajdukovic | 3-6,6-3,4-6 |
| ITF Greece F4 | 2018/03/17 07:30 | Guy Den Heijer v Vasilios Caripi | 5-7,6-3,6-4 |
| ITF Greece F3 | 2018/03/15 08:00 | Neil Pauffley v Guy Den Heijer | 6-4,6-2 |
| ITF Greece F3 | 2018/03/13 10:20 | Jannik Sinner v Guy Den Heijer | 3-6,6-7 |
| ITF Greece F2 | 2018/03/03 07:30 | Guy Den Heijer v Duje Ajdukovic | 3-6,5-7 |
| ITF Spain F4 | 2018/02/10 14:30 | Daniel Gimeno-Traver v Guy Den Heijer | 6-2,7-5 |
| ITF Spain F4 | 2018/02/09 15:00 | Guy Den Heijer v Yshai Oliel | 6-1,6-3 |
| ITF Poland F1 | 2018/05/03 10:50 | Karol Paluch v Michael Vrbensky | 1-6,0-6 |
| ITF Poland F1 | 2018/05/01 08:50 | Michael Vrbensky v Pawel Juszczak | 6-2,2-6,7-6 |
| ITF Tunisia F14 | 2018/04/13 09:00 | Mateo Nicolas Martinez v Michael Vrbensky | 6-1,7-6 |
| ITF Tunisia F14 | 2018/04/12 12:35 | Ezequiel A Santalla v Michael Vrbensky | 2-6,2-6 |
| ITF Tunisia F14 | 2018/04/10 11:00 | Michael Vrbensky v Juan Carlos Saez | 6-2,6-4 |
| ITF Tunisia F13 | 2018/04/05 09:00 | Michael Vrbensky v David Perez Sanz | 6-7,6-7 |
| ITF Tunisia F13 | 2018/04/04 11:20 | Michael Vrbensky v Angel Luis C Canadas | 6-2,6-4 |
| ITF Greece F4 | 2018/03/17 07:30 | Michael Vrbensky v Alexander Donski | 6-7,6-7 |