Stadium: Center Court Round: 25 Ground: Hardcourt outdoor
| ITF Poland F7 | 2018/08/17 09:00 | Christopher Heyman v Thiago Seyboth Wild | 6-4,0-6,6-7 |
| ITF Poland F7 | 2018/08/15 08:00 | Christopher Heyman v Michal Mikula | 6-1,6-0 |
| ITF Poland F7 | 2018/08/13 12:25 | Christopher Heyman v Michal Dembek | 6-2,7-5 |
| Challenger Portoroz | 2018/08/07 20:05 | Sergiy Stakhovsky v Christopher Heyman | 4-6,6-3,6-3 |
| Challenger Portoroz Qual | 2018/08/06 10:10 | Christopher Heyman v Markus Eriksson | 3-6,3-6 |
| Challenger Portoroz Qual | 2018/08/05 13:00 | Christopher Heyman v Nikola Cacic | 6-1,5-7,6-4 |
| Challenger Segovia | 2018/07/31 15:45 | Christopher Heyman v Joao Monteiro | 4-6,4-6 |
| ITF Germany F8 | 2018/07/20 11:00 | Manuel Pena Lopez v Christopher Heyman | 6-4,6-2 |
| ITF France F16 | 2018/09/04 12:50 | Lucas Poullain v Jonathan Gray | 6-2,7-5 |
| ITF Belarus F3 | 2018/08/20 10:10 | Jonathan Gray v Joshua Paris | 6-4,4-6,4-6 |
| ITF Belarus F2 | 2018/08/15 07:00 | Jonathan Gray v Giorgio Ricca | 4-6,5-7 |
| ITF Belarus F2 | 2018/08/14 08:45 | Jonathan Gray v Alon Elia | 6-3,2-6,7-5 |
| ITF Belarus F1 | 2018/08/11 07:00 | Jurabek Karimov v Jonathan Gray | 6-4,6-4 |
| ITF Belarus F1 | 2018/08/10 07:00 | Jonathan Gray v Sergey Betov | 2-6,6-3,6-4 |
| ITF Belarus F1 | 2018/08/09 07:00 | Anil Yuksel v Jonathan Gray | 5-7,3-6 |
| ITF Belarus F1 | 2018/08/08 07:00 | Fernando Yamacita v Jonathan Gray | 2-6,4-6 |