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 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 Czech Republic F2 | 2017/05/27 11:55 | Julian Lenz v Johannes Haerteis | 6-1,6-4 |
| ITF Czech Republic F2 | 2017/05/25 11:00 | Kristjan Tamm v Julian Lenz | 2-6,1-6 |
| ITF Czech Republic F2 | 2017/05/24 11:55 | Julian Lenz v Robin Stanek | 6-3,2-6,6-4 |
| 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 |
| Challenger Heilbronn Qual | 2017/05/15 10:00 | Dominik Koepfer v Sebastian Fanselow | 7-6,6-4 |
| Challenger Heilbronn Qual | 2017/05/14 09:00 | Bradley Klahn v Sebastian Fanselow | 5-7,6-7 |
| Challenger Heilbronn Qual | 2017/05/13 08:00 | Sebastian Fanselow v Matteo Donati | 7-6,6-4 |
| ITF USA F13 | 2017/04/13 23:00 | Jared Hiltzik v Sebastian Fanselow | 3-6,7-5,6-2 |