| ITF Germany F13 | 2015/08/24 08:30 | Jonas Trinker v Flemming Peters | 1-6,2-6 |
| ITF Austria F5 Qual | 2015/07/18 10:00 | Nicolas Moreno De Alboran v Jonas Trinker | 4-6,6-3,6-1 |
| ITF Austria F4 Qual | 2015/07/11 07:15 | Filippo Baldi v Jonas Trinker | 6-2,6-2 |
| ITF Turkey F18 | 2015/05/05 08:15 | Jonas Trinker v James Marsalek | 1-6,3-6 |
| ITF Turkey F18 | 2015/05/04 08:00 | Maksim Malyshev v Jonas Trinker | 5-7,2-6 |
| ITF Turkey F18 | 2015/05/03 09:00 | Fariduni Hamid v Jonas Trinker | 3-6,5-7 |
| ITF Turkey F17 | 2015/04/25 10:00 | Jonas Trinker v Norbert Nagyi | 6-0,6-1 |
| ITF Turkey F11 | 2015/03/15 08:00 | Jonas Trinker v Christian Samuelsson | 5-7,7-6,3-6 |
| ITF Turkey F18 | 2015/05/07 07:00 | Marc Sieber v Peter Heller | 5-7,3-6 |
| ITF Turkey F18 | 2015/05/06 10:20 | Shunsuke Wakita v Marc Sieber | 2-6,2-6 |
| ITF Turkey F12 | 2015/03/26 09:30 | Marc Sieber v Ricardo Rodriguez-Pace | 4-6,3-6 |
| ITF Turkey F12 | 2015/03/25 13:00 | Daniiar Duldaev v Marc Sieber | 1-6,1-6 |
| ITF Turkey F11 | 2015/03/22 08:00 | Marc Sieber v Ricardo Rodriguez-Pace | 3-6,0-6 |
| ITF Turkey F11 | 2015/03/21 08:00 | Marc Sieber v Dimitar Kuzmanov | 2-6,6-4,6-0 |
| ITF Turkey F11 | 2015/03/20 09:50 | Tristan-Samuel Weissborn v Marc Sieber | 2-6,3-6 |
| ITF Turkey F11 | 2015/03/19 07:30 | Gianluca Di Nicola v Marc Sieber | 6-7,6-7 |