Stadium: Center Court Round: 26 Ground: Clay
| ITF Czech Republic F2 | 2018/05/23 08:00 | Jiri Lehecka v Dominik Kellovsky | 7-5,1-6,4-6 |
| Challenger Ostrava | 2018/05/01 10:20 | Dominik Kellovsky v Zdenek Kolar | 2-6,7-6,5-7 |
| Challenger Francavilla Qual | 2018/04/22 09:40 | Dominik Kellovsky v Elliot Benchetrit | 1-6,4-6 |
| ITF Egypt F13 | 2018/04/09 08:30 | Dominik Kellovsky v Jack Draper | 6-3,4-6,6-7 |
| ITF Egypt F13 | 2018/04/08 08:00 | Dominik Kellovsky v Federico Rebecchini | 6-2,6-3 |
| ITF Egypt F12 | 2018/04/04 10:30 | Peter Goldsteiner v Dominik Kellovsky | 5-7,3-6 |
| ITF Egypt F12 | 2018/04/02 08:30 | Dominik Kellovsky v Anton Chekhov | 7-6,7-6 |
| ITF Egypt F12 | 2018/04/01 08:00 | Dominik Kellovsky v Christoffer Solberg | 4-6,6-4,6-0 |
| ITF Czech Republic F2 | 2018/05/23 12:20 | Kai Wehnelt v Peter Heller | 1-6,3-6 |
| ITF Czech Republic F1 | 2018/05/19 09:00 | Peter Heller v Peter Torebko | 4-6,2-6 |
| ITF Czech Republic F1 | 2018/05/18 09:00 | Maciej Smola v Peter Heller | 0-6,2-6 |
| ITF Czech Republic F1 | 2018/05/17 08:00 | Peter Heller v Mikalai Haliak | 6-2,6-4 |
| ITF Czech Republic F1 | 2018/05/15 09:05 | Daniel Paty v Peter Heller | 1-6,3-6 |
| ITF Poland F1 | 2018/05/05 08:00 | Peter Heller v Zizou Bergs | 4-6,1-6 |
| ITF Poland F1 | 2018/05/04 10:00 | Jordi Samper-Montana v Peter Heller | 5-7,1-6 |
| ITF Poland F1 | 2018/04/30 10:00 | Raphael Baltensperger v Peter Heller | 2-6,6-7 |