| Challenger Szczecin Qual | 2017/09/09 14:30 | Pawel Juszczak v von Massow, George | 6-2,6-2 |
| Challenger Alphen Qual | 2017/09/04 10:00 | Zopp, Jurgen v von Massow, George | 6-3,6-2 |
| Challenger Alphen Qual | 2017/09/03 13:00 | von Massow, George v Uzhylovsky, Vladimir | 4-6,6-2,6-4 |
| Challenger Alphen Qual | 2017/09/03 09:00 | Guy Stokman v von Massow, George | 0-6,0-6 |
| ITF Germany F10 | 2017/08/09 10:30 | von Massow, George v Galarza, Juan Ignacio | 5-7,3-6 |
| ITF Germany F10 | 2017/08/08 12:40 | Mertens, Yannick v von Massow, George | 3-6,4-6 |
| ITF Estonia F1 | 2017/07/29 09:00 | Zopp, Jurgen v von Massow, George | 6-1,6-3 |
| ITF Estonia F1 | 2017/07/28 15:50 | Matias Franco Descotte v von Massow, George | 3-6,1-6 |
| Izmir, Turkey | 2017/09/20 09:40 | Robert, Stephane v Viola, Matteo | 6-4,6-4 |
| Izmir, Turkey | 2017/09/19 07:00 | Viola, Matteo v Sarp Agabigun | 6-1,6-0 |
| Challenger Alphen | 2017/09/06 10:00 | Westerhof, Boy v Viola, Matteo | 3-6,6-4,6-3 |
| ITF Switzerland F5 | 2017/09/02 11:15 | Viola, Matteo v Ehara, Hiroyasu | 5-7,7-5,6-7 |
| ITF Switzerland F5 | 2017/09/01 11:45 | Viola, Matteo v Crepatte, Baptiste | 7-5,6-2 |
| ITF Switzerland F5 | 2017/09/01 08:00 | Viola, Matteo v Luca Castelnuovo | 6-2,6-0 |
| ITF Switzerland F5 | 2017/08/29 12:45 | Viola, Matteo v Fournerie, Theo | 6-4,6-1 |
| Challenger Manerbio | 2017/08/21 11:50 | Mathias Bourgue v Viola, Matteo | 6-3,6-4 |