Round: 27 Ground: Hardcourt indoor
| 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 Italy F12 | 2015/06/06 13:00 | Alessandro Giannessi v Yann Marti | 6-7,7-5,6-4 |
| ITF Italy F12 | 2015/06/05 12:00 | Yann Marti v Gregoire Barrere | 5-7,6-3,6-4 |
| ITF Italy F12 | 2015/06/04 13:30 | Takanyi Garanganga v Yann Marti | 4-6,2-6 |
| ITF Italy F12 | 2015/06/02 09:30 | Caio Silva v Yann Marti | 2-6,5-7 |
| ATP Geneva Qual | 2015/05/17 10:40 | Lukas Rosol v Yann Marti | 6-3,6-2 |
| ATP Geneva Qual | 2015/05/16 14:00 | Yann Marti v Pedro Cachin | 6-4,6-1 |
| ATP Geneva Qual | 2015/05/16 09:30 | Yann Marti v Andre Begemann | 7-6,6-4 |
| Challenger Aix en Provence | 2015/05/06 13:20 | Yann Marti v Jonathan Eysseric | 3-6,6-1,4-6 |