Stadium: Center Court Round: 45 Ground: Synthetic indoor
| ITF Germany F11 | 2017/08/14 09:00 | Dan Added v Ralph Regus | 6-2,6-4 |
| ITF Germany F11 | 2017/08/13 08:00 | Ralph Regus v Sebastian Buehler | 6-1,6-0 |
| ITF Greece F3 | 2017/03/18 09:30 | Richard Gabb v Ralph Regus | 6-3,6-2 |
| ITF Switzerland F1 Qual | 2017/02/06 09:00 | Duje Kekez v Ralph Regus | 7-5,2-6,7-6 |
| ITF Switzerland F1 Qual | 2017/02/05 11:30 | Ralph Regus v Luca Giacomelli | 6-2,6-7,7-5 |
| ITF Switzerland F1 Qual | 2017/02/04 11:30 | Ralph Regus v Maximilian Gatev | 6-4,6-0 |
| ITF Spain F1 | 2017/01/15 08:30 | Eduard Guell Bartrina v Ralph Regus | 6-1,3-6,6-4 |
| ITF Greece F10 Qual | 2016/11/12 07:00 | Shunsuke Wakita v Ralph Regus | 6-4,6-4 |
| ITF Germany F14 | 2017/10/15 12:00 | Robin Kern v Scott Griekspoor | 6-3,7-6 |
| ITF Germany F14 | 2017/10/14 11:00 | Daniel Masur v Robin Kern | 5-7,3-6 |
| ITF Germany F14 | 2017/10/13 10:00 | Marc-Andrea Huesler v Robin Kern | 7-6,3-6,4-6 |
| ITF Germany F14 | 2017/10/12 14:00 | Sebastian Prechtel v Robin Kern | 3-6,4-6 |
| ITF Germany F14 | 2017/10/11 14:20 | Dominik Boehler v Robin Kern | 6-4,3-6,2-6 |
| ITF France F21 | 2017/10/01 12:30 | Benjamin Hassan v Robin Kern | 6-4,5-7,1-6 |
| ITF France F21 | 2017/09/30 14:15 | Robin Kern v Elmar Ejupovic | 7-6,7-6 |
| ITF France F21 | 2017/09/29 10:00 | Robin Kern v Julian Lenz | 7-6,6-3 |