Stadium: Opatija 3 Round: 26 Ground: Clay
| ITF Finland F4 | 2017/11/14 19:55 | Patrik Niklas-Salminen v Matteo Viola | 6-4,3-6,7-5 |
| Challenger Bratislava | 2017/11/08 12:20 | Marcos Baghdatis v Matteo Viola | 6-4,6-4 |
| Challenger Bratislava Qual | 2017/11/06 09:00 | Matteo Viola v Niels Desein | 6-3,6-7,2-6 |
| Challenger Bratislava Qual | 2017/11/05 10:05 | Matteo Viola v Andrej Glvac | 6-4,6-1 |
| Challenger Bratislava Qual | 2017/11/04 12:40 | Matteo Viola v Sarp Agabigun | 3-6,6-4,6-2 |
| ITF Israel F15 | 2017/10/31 13:20 | Matteo Viola v Yshai Oliel | 1-6,1-6 |
| ITF Greece F6 | 2017/10/29 09:00 | Matteo Viola v Tallon Griekspoor | 6-7,4-6 |
| ITF Greece F6 | 2017/10/28 07:00 | Vaclav Safranek v Matteo Viola | 7-6,1-6,6-7 |
| ITF Slovakia F2 | 2017/08/04 08:00 | Patrik Nema v Nik Razborsek | 6-3,6-4 |
| ITF Slovakia F2 | 2017/08/03 08:00 | Samm Butler v Nik Razborsek | 2-6,1-6 |
| ITF Slovakia F2 | 2017/08/02 14:40 | David Juras v Nik Razborsek | 1-6,0-6 |
| ITF Slovakia F1 | 2017/07/28 11:55 | Danylo Kalenichenko v Nik Razborsek | 7-6,6-2 |
| ITF Slovakia F1 | 2017/07/27 12:25 | Andrew Watson v Nik Razborsek | 4-6,2-6 |
| ITF Slovakia F1 | 2017/07/26 13:30 | Mike Urbanija v Nik Razborsek | 2-6,2-6 |
| ITF Germany F5 | 2017/06/29 10:35 | George Von Massow v Nik Razborsek | 2-6,6-0,6-1 |
| ITF Germany F5 | 2017/06/28 09:00 | Nik Razborsek v Tom Schonenberg | 6-2,6-3 |