Round: 44 Ground: Clay
| ITF Germany F6 | 2017/07/02 08:00 | Tholl, Robi v Melzer, Lennart | 6-0,6-0 |
| ITF Belgium F13 Qual | 2016/09/05 12:05 | Bruna, Esteban v Tholl, Robi | 6-1,6-3 |
| ITF Germany F7 | 2016/07/10 09:30 | Tholl, Robi v Adrian Oetzbach | 3-6,1-6 |
| ITF Germany F5 | 2017/06/27 12:40 | Guenther, Valentin v Peter Heller | 1-6,4-6 |
| ITF Germany F4 | 2017/06/22 12:00 | Bernabe Zapata Miralles v Guenther, Valentin | 6-4,6-1 |
| ITF Germany F4 | 2017/06/21 10:45 | Guenther, Valentin v Braun, Niclas | 6-0,6-0 |
| ITF Germany F4 | 2017/06/19 11:00 | Mannapov, Alexander v Guenther, Valentin | 4-6,1-6 |
| ITF Germany F4 | 2017/06/18 14:00 | Staschen, Yannick v Guenther, Valentin | 2-6,4-6 |
| ITF Germany F4 | 2017/06/17 10:30 | Link, Joel Vincent v Guenther, Valentin | 1-6,4-6 |
| ITF Turkey F19 Qual | 2017/05/15 07:00 | Guenther, Valentin v Juan Bautista Otegui | 3-6,3-6 |
| ITF Turkey F19 Qual | 2017/05/14 07:00 | Du Toit, Lance-Pierre v Guenther, Valentin | 5-7,0-6 |