Round: 62 Ground: Hardcourt outdoor
| ITF Croazia - Qual. | 2017/03/25 10:00 | Klemen Nikolas v Artsiom Dabryian | 2-6,6-0,3-6 |
| ITF Croazia F3 | 2017/03/19 08:30 | Klemen Nikolas v Kevin Kralj | 3-6,3-6 |
| ITF Croazia F2 | 2017/03/12 08:30 | Edoardo Pompei v Klemen Nikolas | 7-5,6-2 |
| ITF Croazia F2 | 2017/03/11 10:00 | Nino Krneta v Klemen Nikolas | 5-7,4-6 |
| ITF Croazia F1 | 2017/03/05 08:00 | Klemen Nikolas v Jakob Johansson-Holm | 1-6,1-6 |
| ITF Croazia F1 | 2017/03/04 08:00 | Roko Horvat v Klemen Nikolas | 6-0,2-6,3-6 |
| ITF Germania F3 | 2017/01/22 11:30 | Klemen Nikolas v Benjamin Hassan | 2-6,6-1,4-6 |
| ITF Turchia F47 - Qual. | 2016/11/19 06:00 | Klemen Nikolas v Andrej Glvac | 3-6,1-6 |