Stadium: Hard Court 4 Round: 62 Ground: Hardcourt outdoor
| ITF Turkey F1 | 2018/01/07 08:30 | Zizou Bergs v Nikolaj Katic | 6-2,6-1 |
| ITF Turkey F1 | 2018/01/06 09:00 | Philipp Sikorski v Nikolaj Katic | 2-6,6-1,2-6 |
| ITF Turkey F47 Qual | 2017/12/09 06:45 | Gregorio Cordonnier v Nikolaj Katic | 6-7,6-4,6-2 |
| ITF Turkey F46 Qual | 2017/12/02 06:45 | Maurizio Speziali v Nikolaj Katic | 6-1,4-6,6-1 |
| ITF Turkey F45 Qual | 2017/11/26 06:30 | Vladislav Melnic v Nikolaj Katic | 6-4,6-2 |
| ITF Netherlands F4 | 2016/07/02 10:30 | Nikolaj Katic v Gijs Brouwer | 1-6,3-6 |
| ITF Netherlands F4 | 2016/07/02 08:00 | Nikolaj Katic v Cheraag Bajwa | 3-6,6-3,6-1 |
| ITF Czech Republic F4 Qual | 2016/06/26 08:00 | Vit Kopriva v Nikolaj Katic | 6-0,6-1 |
| ITF Estonia F4 | 2017/11/04 14:00 | Daniil Glinka v Roberts Grinvalds | 6-7,6-4,6-3 |
| ITF Estonia F3 | 2017/10/28 09:30 | Pavel Filin v Roberts Grinvalds | 6-3,6-1 |
| ITF Estonia F2 | 2017/10/21 11:00 | Isaac Stoute v Roberts Grinvalds | 7-6,4-6,6-2 |
| ITF Latvia F1 | 2017/08/02 14:55 | Roberts Grinvalds v Marc Dijkhuizen | 1-6,4-6 |
| ITF Latvia F1 | 2017/07/31 07:00 | Martins Rocens v Roberts Grinvalds | 3-6,6-7 |
| ITF Latvia F1 | 2017/07/29 11:30 | Motvey Radionov v Roberts Grinvalds | 5-7,1-6 |
| ITF Israel F18 | 2016/12/10 07:30 | Shahar Elbaz v Roberts Grinvalds | 6-3,6-4 |
| ITF Israel F17 | 2016/12/04 07:30 | Roberts Grinvalds v Aljaz Radinski | 5-7,6-4,5-7 |