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