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 |
| 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 Germany F8 | 2018/07/19 09:30 | Marc Sieber v Christopher Heyman | 1-6,5-7 |
| ITF Germany F8 | 2018/07/18 15:10 | Pavle Daljev v Christopher Heyman | 3-6,4-6 |
| ITF Belgium F3 | 2018/07/06 15:00 | Christopher Heyman v Michael Geerts | 6-4,6-7,3-6 |
| ITF Belgium F3 | 2018/07/05 15:35 | Christopher Heyman v Nikita Mashtakov | 6-3,6-2 |
| ITF Belgium F3 | 2018/07/04 10:10 | Christopher Heyman v Felipe M Sarrasague | 6-2,6-4 |
| 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 |
| ITF Spain F17 | 2018/07/06 09:00 | Sergio Gutierrez-Ferrol v Altug Celikbilek | 3-6,7-6,6-3 |
| ITF Spain F17 | 2018/07/04 16:30 | Viktor Durasovic v Altug Celikbilek | 6-7,6-2,3-6 |
| ITF Spain F17 | 2018/07/03 11:05 | Evan Hoyt v Altug Celikbilek | 0-6,1-6 |
| Challenger Fergana Qual | 2018/06/17 06:25 | Altug Celikbilek v Shuichi Sekiguchi | 2-6,1-6 |
| Challenger Fergana Qual | 2018/06/16 07:10 | Grigoriy Lomakin v Altug Celikbilek | 6-7,2-6 |