Round: 26 Ground: Clay
| Challenger Heilbronn | 2015/05/11 15:00 | Jason Kubler v Jeremy Jahn | 6-7,6-4,7-5 |
| Challenger Heilbronn Qual | 2015/05/10 11:25 | Henri Laaksonen v Jeremy Jahn | 4-6,4-6 |
| ITF Turkey F7 | 2015/02/18 09:10 | Jeremy Jahn v Franko Skugor | 4-6,6-4,2-6 |
| ITF Turkey F7 | 2015/02/17 07:30 | Kittiphong Wachiramanowong v Jeremy Jahn | 1-6,2-6 |
| ITF Turkey F7 | 2015/02/14 07:00 | Cheong Hwi Kim v Jeremy Jahn | 0-6,1-6 |
| ITF Turkey F6 | 2015/02/12 10:00 | Dimitar Kuzmanov v Jeremy Jahn | 6-3,6-2 |
| ITF Turkey F6 | 2015/02/11 11:30 | Jeremy Jahn v Antoine Hoang | 6-1,7-6 |
| ITF Turkey F6 | 2015/02/07 09:00 | Sefa Suluoglu v Jeremy Jahn | 0-6,0-6 |
| ITF Germany F11 | 2015/08/13 15:00 | Florian Fallert v Julian Onken | 6-4,3-6,6-0 |
| ITF Italy F21 | 2015/08/06 16:50 | Florian Fallert v Salvatore Caruso | 1-6,6-7 |
| ITF Italy F21 | 2015/08/05 11:30 | Maverick Banes v Florian Fallert | 4-6,4-6 |
| ITF Italy F21 | 2015/08/04 14:50 | Joy Vigani v Florian Fallert | 4-6,0-6 |
| ITF Austria F6 | 2015/07/27 15:30 | Sebastian Ofner v Florian Fallert | 7-6,7-6 |
| ITF Germany F5 | 2015/07/05 12:00 | Kevin Krawietz v Florian Fallert | 3-6,6-3,2-6 |
| ITF Germany F5 | 2015/07/04 16:00 | Franjo Raspudic v Florian Fallert | 4-6,6-4,5-7 |
| ITF Germany F5 | 2015/07/03 16:05 | Samuel Bensoussan v Florian Fallert | 2-6,3-6 |