Stadium: Center Court Round: 25 Ground: Clay
| ITF Germany F6 | 2016/07/05 16:00 | Sebastian Fanselow v Julian Lenz | 4-6,2-6 |
| Challenger Liberec Qual | 2017/07/29 10:00 | Julian Lenz v Juan Pablo Ficovich | 6-4,3-6,2-6 |
| ITF Germany F8 | 2017/07/20 14:10 | Julian Lenz v Jan Choinski | 7-5,6-7,0-6 |
| ITF Germany F8 | 2017/07/19 15:30 | Matthew Dellavedova v Julian Lenz | 3-6,4-6 |
| Challenger Marburg | 2017/07/03 15:30 | Cedrik-Marcel Stebe v Julian Lenz | 6-3,7-6 |
| Challenger Lisbon Qual | 2017/06/12 10:00 | Julian Lenz v Dragos Dima | 4-6,3-6 |
| Challenger Lisbon Qual | 2017/06/11 10:00 | Danilo Petrovic v Julian Lenz | 6-7,6-4,3-6 |
| Challenger Lisbon Qual | 2017/06/10 11:40 | Julian Lenz v Andriej Kapas | 6-4,6-3 |
| ITF Czech Republic F2 | 2017/05/28 08:30 | Jan Mertl v Julian Lenz | 6-4,2-6,2-6 |
| ITF Germany F9 | 2017/08/02 13:30 | Rudolf Molleker v Sebastian Fanselow | 6-4,6-3 |
| ITF Germany F9 | 2017/08/01 09:00 | Mats Rosenkranz v Sebastian Fanselow | 3-6,5-7 |
| ITF Germany F8 | 2017/07/20 13:30 | Sebastian Fanselow v Dominik Boehler | 4-6,6-2,4-6 |
| ITF Germany F8 | 2017/07/19 13:00 | Sebastian Fanselow v Niels Lootsma | 7-6,6-3 |
| ITF Italy F16 | 2017/06/08 10:00 | Sebastian Fanselow v Orlando Luz | 3-6,6-4,6-7 |
| ITF Italy F16 | 2017/06/07 08:30 | Sebastian Fanselow v Jason Kubler | 6-3,6-7,6-3 |
| ITF Italy F16 | 2017/06/06 07:30 | Sebastian Fanselow v Tobias Simon | 4-6,6-4,6-0 |
| ITF Italy F15 | 2017/05/30 11:20 | Vaclav Safranek v Sebastian Fanselow | 6-3,6-4 |