Round: 28 Ground: Clay
| ITF Germany F10 | 2016/08/11 14:25 | Julian Lenz v Johannes Haerteis | 5-7,6-3,3-6 |
| 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 Staněk | 6-3,2-6,6-4 |
| ITF Czech Republic F1 | 2017/05/21 09:00 | Julian Lenz v Juraj Masar | 6-2,6-3 |
| ITF Czech Republic F1 | 2017/05/20 08:30 | Julian Lenz v Michael Geerts | 6-3,6-1 |
| ITF Czech Republic F1 | 2017/05/19 10:20 | Adrian Obert v Julian Lenz | 6-3,0-6,4-6 |
| ITF Czech Republic F1 | 2017/05/18 08:30 | Alexandar Lazarov v Julian Lenz | 7-6,6-7,3-6 |
| ITF Czech Republic F1 | 2017/05/16 10:00 | Julian Lenz v Ricardo Hocevar | 6-3,5-7,7-5 |
| ITF Czech Republic F1 Qual | 2017/05/15 12:40 | Julian Lenz v Adam Majchrowicz | 6-1,6-3 |
| ITF Czech Republic F2 | 2017/05/26 10:30 | Piotr Matuszewski v Johannes Haerteis | 3-6,1-6 |
| ITF Czech Republic F2 | 2017/05/25 09:00 | Grzegorz Panfil v Johannes Haerteis | 1-6,5-7 |
| ITF Czech Republic F2 | 2017/05/24 09:00 | Johannes Haerteis v Niels Lootsma | 6-3,6-1 |
| ITF Czech Republic F1 Qual | 2017/05/15 10:45 | Johannes Haerteis v Pavel Kotov | 6-4,4-6,4-6 |
| ITF Qatar F2 | 2017/04/12 13:10 | Johannes Haerteis v Antoine Escoffier | 4-6,2-6 |
| ITF Qatar F2 | 2017/04/11 18:15 | Yaraslav Shyla v Johannes Haerteis | 1-6,2-6 |
| ITF Qatar F1 | 2017/04/04 13:25 | Johannes Haerteis v Lenny Hampel | 3-6,5-7 |
| ITF Italy F2 | 2017/03/03 13:00 | Johannes Haerteis v Gregoire Jacq | 7-6,4-6,6-7 |