Round: 26 Ground: Hardcourt indoor
| ITF Estonia F1 | 2017/07/25 08:00 | George Von Massow v Keisuke Numajiri | 6-2,6-2 |
| Challenger Scheveningen | 2017/07/17 12:00 | George Von Massow v Sergiy Stakhovsky | 6-7,2-6 |
| Challenger Scheveningen Qual | 2017/07/16 13:30 | Roy De Valk v George Von Massow | 3-6,2-6 |
| Challenger Scheveningen Qual | 2017/07/15 09:25 | Vadim Alekseenko v George Von Massow | 0-6,1-6 |
| Challenger Braunschweig | 2017/07/11 13:50 | Yannick Maden v George Von Massow | 6-1,7-6 |
| Challenger Braunschweig Qual | 2017/07/09 09:00 | George Von Massow v Pedro Sakamoto | 6-0,6-2 |
| Challenger Braunschweig Qual | 2017/07/08 08:00 | Tallon Griekspoor v George Von Massow | 6-4,2-6,3-6 |
| ITF Germany F5 | 2017/06/30 11:00 | George Von Massow v Alexander Vasilenko | 4-6,4-6 |
| ITF Georgia F3 | 2017/07/22 09:00 | David Volfson v Nerman Fatic | 2-6,6-7 |
| ITF Georgia F3 | 2017/07/21 08:40 | David Volfson v Caio Silva | 7-5,6-2 |
| ITF Georgia F3 | 2017/07/20 08:30 | David Volfson v Domagoj Biljesko | 2-6,6-3,6-2 |
| ITF Georgia F3 | 2017/07/19 06:00 | Federico Zeballos v David Volfson | 3-6,4-6 |
| ITF USA F22 | 2017/06/29 17:50 | David Volfson v Rubin Statham | 2-6,6-1,1-6 |
| ITF USA F22 | 2017/06/28 15:20 | Alex Blumenberg v David Volfson | 4-6,4-6 |
| ITF USA F22 | 2017/06/26 14:00 | David Volfson v Nolan C. Paige | 6-0,6-4 |
| ITF USA F20 | 2017/06/17 17:00 | David Volfson v Kyle Seelig | 1-6,5-7 |