Round: 25 Ground: Clay
| ITF Switzerland F3 | 2015/08/21 10:00 | Simon, Tobias v Marcora, Roberto | 3-6,3-6 |
| ITF Switzerland F3 | 2015/08/19 16:10 | Simon, Tobias v Ruppli, Andrew | 6-4,6-2 |
| ITF Switzerland F3 | 2015/08/18 10:35 | Simon, Tobias v Tashi, Vullnet | 6-3,6-3 |
| ITF Austria F5 | 2015/07/23 09:40 | Simon, Tobias v Sebastian Ofner | 4-6,6-3,6-7 |
| ITF Austria F5 | 2015/07/21 10:30 | Simon, Tobias v Bogdan Bobrov | 6-2,6-3 |
| ITF Austria F3 | 2015/07/06 09:00 | Simon, Tobias v Arvidsson, Isak | 1-6,4-6 |
| ATP Geneva Qual | 2015/05/16 08:00 | Simon, Tobias v Andrey Kuznetsov | 4-6,2-6 |
| ITF Egypt F33 | 2015/05/07 11:15 | Simon, Tobias v Andrzejczuk, Adrian | 6-7,6-2,6-7 |
| ITF Germany F12 | 2015/08/21 11:00 | Marti, Javier v Haerteis, Johannes | 6-2,6-4 |
| ITF Germany F12 | 2015/08/20 14:35 | Sude, Jakob v Haerteis, Johannes | 6-7,7-6,2-6 |
| ITF Germany F12 | 2015/08/18 11:00 | Urrutia Fuentes, Laslo v Haerteis, Johannes | 3-6,6-1,2-6 |
| ITF Germany F11 | 2015/08/12 12:00 | Haerteis, Johannes v Oscar Otte | 4-6,0-6 |
| ITF Germany F7 | 2015/07/16 16:30 | Haerteis, Johannes v Torebko, Peter | 1-6,6-7 |
| ITF Czech Republic F4 | 2015/06/22 12:05 | Haerteis, Johannes v Dominik Kellovsky | 3-6,6-4,3-6 |
| ITF Czech Republic F3 | 2015/05/26 09:00 | Haerteis, Johannes v Stanek, Robin | 4-6,6-7 |
| Czech Republic F2, Singles | 2015/05/21 10:15 | Haerteis, Johannes v Satral, Jan | 3-6,3-6 |