| ITF Germany F7 | 2017/07/09 08:00 | Alex Knaff v Evgeniy Bankov | 6-3,7-5 |
| ITF Germany F6 | 2017/07/02 13:00 | Alex Knaff v Lucas Gerch | 7-6,3-6,4-6 |
| ITF Belgium F2 | 2017/06/29 08:00 | Alex Knaff v Corentin Denolly | 4-6,2-6 |
| ITF Belgium F2 | 2017/06/28 09:00 | Alex Knaff v Thomas Brees | 6-1,6-2 |
| ITF Belgium F2 | 2017/06/27 09:30 | Alex Knaff v Thomas Brees | 6-1,5-2 |
| ITF Belgium F2 Qual | 2017/06/26 11:25 | Alex Knaff v Christophe Nickels | 6-2,6-2 |
| ITF Belgium F2 Qual | 2017/06/25 14:00 | Alex Knaff v Thomas Pouleur | 6-3,5-0 |
| ITF Belgium F1 | 2017/06/20 17:00 | Alex Knaff v Mirko Martinez | 6-7,2-6 |
| ITF Germany F7 | 2017/07/09 08:00 | Yohei Otsuka v Alex Solanki | 6-3,2-6,6-4 |
| ITF Germany F7 | 2017/07/09 08:00 | Yohei Otsuka v Nicolas Affolter | 6-3,6-0 |
| ITF Germany F6 | 2017/07/02 08:00 | Tristan Meraut v Yohei Otsuka | 6-3,6-0 |
| ITF Germany F5 | 2017/06/26 08:00 | Yohei Otsuka v Michael Vrbensky | 2-6,2-6 |
| ITF Germany F5 | 2017/06/25 09:00 | Yohei Otsuka v Alexander Abou Boutros | 6-1,6-1 |
| ITF Germany F4 | 2017/06/17 14:00 | Yohei Otsuka v Leonard Von Hindte | 3-6,1-6 |
| ITF Turkey F18 | 2017/05/07 07:00 | Goran Markovic v Yohei Otsuka | 7-6,6-1 |
| ITF Turkey F18 | 2017/05/06 07:00 | Bekir Berk Sahin v Yohei Otsuka | 2-6,0-6 |