Round: 62 Ground: Hardcourt outdoor
| ITF Egypt F34 | 2017/11/11 08:00 | Nikolas, Klemen v Simpson, Valewis | 6-3,7-6 |
| ITF Croatia F4 Qual | 2017/03/25 10:00 | Nikolas, Klemen v Dabryian, Artsiom | 2-6,6-0,3-6 |
| ITF Croatia F3 | 2017/03/19 08:30 | Nikolas, Klemen v Kralj, Kevin | 3-6,3-6 |
| ITF Croatia F2 | 2017/03/12 08:30 | Pompei, Edoardo v Nikolas, Klemen | 7-5,6-2 |
| ITF Croatia F2 | 2017/03/11 10:00 | Krneta, Nino v Nikolas, Klemen | 5-7,4-6 |
| ITF Croatia F1 | 2017/03/05 08:00 | Nikolas, Klemen v Johannson-Holm, Jakob | 1-6,1-6 |
| ITF Croatia F1 | 2017/03/04 08:00 | Roko Horvat v Nikolas, Klemen | 6-0,2-6,3-6 |
| ITF Germany F3 | 2017/01/22 11:30 | Nikolas, Klemen v Benjamin Hassan | 2-6,6-1,4-6 |
| ITF Egypt F34 | 2017/11/11 08:00 | Daisuke Sumizawa v Desyatnik, Anton | 6-2,6-3 |
| ITF Egypt F33 | 2017/11/04 08:00 | Cordonnier, Gregorio v Daisuke Sumizawa | 6-3,6-4 |
| ITF Malaysia F3 | 2017/10/29 00:00 | Daisuke Sumizawa v Rio Noguchi | 3-6,6-7 |
| ITF Malaysia F2 | 2017/10/23 01:00 | Lu, Tyler v Daisuke Sumizawa | 6-1,6-4 |
| ITF Malaysia F2 | 2017/10/22 03:00 | Daisuke Sumizawa v Matheson, Sam | 6-4,6-2 |
| ITF Malaysia F1 | 2017/10/16 01:00 | R Prabodh, Suraj v Daisuke Sumizawa | 6-1,6-3 |
| ITF Malaysia F1 | 2017/10/15 01:00 | Daisuke Sumizawa v Pare, Francis | 6-0,6-3 |
| ITF Romania F12 | 2017/08/27 10:30 | Manole, Alexandru Vasile v Daisuke Sumizawa | 6-0,6-3 |