Stadium: Center Court Round: 28 Ground: Clay
| ITF Czech Republic F2 | 2018/05/25 10:10 | Michal Konečný v Jan Mertl | 6-7,3-6 |
| ITF Czech Republic F2 | 2018/05/24 11:55 | Antonin Bolardt v Jan Mertl | 0-6,3-6 |
| ITF Czech Republic F2 | 2018/05/23 13:40 | Marek Gengel v Jan Mertl | 6-7,3-6 |
| ITF Czech Republic F1 | 2018/05/16 08:00 | Mikalai Haliak v Jan Mertl | 7-5,6-4 |
| Challenger Ostrava Qual | 2018/04/28 15:20 | Ivan Gakhov v Jan Mertl | 5-7,6-3,7-6 |
| ITF Tunisia F15 | 2018/04/17 09:00 | Finn Bass v Jan Mertl | 4-6,6-1,6-4 |
| ITF Tunisia F14 | 2018/04/12 09:00 | Jaime Pulgar-Garcia v Jan Mertl | 7-6,3-6,7-6 |
| ITF Tunisia F14 | 2018/04/10 10:35 | Franco Emanuel Egea v Jan Mertl | 4-6,2-6 |
| ITF Czech Republic F2 | 2018/05/25 08:30 | Patrik Rikl v Sekou Bangoura | 4-6,2-6 |
| ITF Czech Republic F2 | 2018/05/24 08:30 | Bart Van Den Berg v Sekou Bangoura | 3-6,2-6 |
| ITF Czech Republic F2 | 2018/05/23 08:00 | Szymon Walkow v Sekou Bangoura | 2-6,5-7 |
| ITF Poland F3 | 2018/05/21 09:00 | Sekou Bangoura v Pawel Juszczak | 4-6,7-5,6-4 |
| ITF Poland F3 | 2018/05/20 09:00 | Marvin Netuschil v Sekou Bangoura | 4-6,6-3,4-6 |
| ITF Poland F3 | 2018/05/19 11:00 | Sekou Bangoura v Grzegorz Panfil | 7-6,6-1 |
| ITF Poland F3 | 2018/05/18 12:00 | Sekou Bangoura v Vít Kopřiva | 7-6,7-5 |
| ITF Poland F3 | 2018/05/15 09:30 | Sekou Bangoura v Karol Drzewiecki | 3-6,7-6,6-1 |