Stadium: Court 1 Round: 28 Ground: Carpet indoor
| ITF Turkey F21 | 2016/05/27 09:15 | Altug Celikbilek v Christopher Heyman | 6-4,6-7,2-6 |
| ITF Turkey F20 | 2016/05/20 08:00 | Altug Celikbilek v Christopher Heyman | 2-6,2-6 |
| 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 |
| Challenger Mallorca | 2018/08/26 13:40 | Tim Van Rijthoven v Altug Celikbilek | 6-3,6-2 |
| Challenger Mallorca | 2018/08/26 07:30 | Gerard Granollers-Pujol v Altug Celikbilek | 4-6,2-6 |
| Challenger Portoroz | 2018/08/08 17:20 | Sergiy Stakhovsky v Altug Celikbilek | 7-6,6-2 |
| Challenger Portoroz | 2018/08/07 17:10 | Altug Celikbilek v Aljaz Jakob Kaplja | 6-0,6-1 |
| Challenger Portoroz Qual | 2018/08/06 08:00 | David Poljak v Altug Celikbilek | 3-6,6-3,3-6 |
| Challenger Portoroz Qual | 2018/08/05 08:00 | Mirko Cutuli v Altug Celikbilek | 3-6,1-6 |
| ITF France F13 | 2018/07/11 17:00 | Aslan Karatsev v Altug Celikbilek | 6-1,6-0 |
| ITF France F13 | 2018/07/10 16:30 | Laurent Lokoli v Altug Celikbilek | 6-7,5-7 |