Stadium: M.A.R.A. Court Round: 25 Ground: Hardcourt outdoor
| ITF M15 Tabarka | 2019/04/19 09:00 | Nik Razborsek v Constantin Schmitz | 0-6,2-6 |
| ITF M15 Tabarka | 2019/04/18 09:45 | Nik Razborsek v Franco Emanuel Egea | 6-3,4-6,6-4 |
| ITF M15 Tabarka | 2019/04/17 13:05 | Nik Razborsek v Kristjan Tamm | 6-4,7-5 |
| ITF M15 Tabarka | 2019/04/12 17:25 | Nik Razborsek v Maxime Hamou | 7-6,2-6,2-6 |
| ITF M15 Tabarka | 2019/04/11 10:20 | Nik Razborsek v Adrien Bossel | 7-6,6-2 |
| ITF M15 Tabarka | 2019/04/10 14:30 | Nik Razborsek v Alexander Donski | 6-3,7-6 |
| ITF M15 - Opatija | 2019/03/30 12:00 | Mate Valkusz v Nik Razborsek | 6-1,6-1 |
| ITF M15 - Opatija | 2019/03/29 11:55 | Nik Razborsek v Maxime Chazal | 6-7,6-2,6-2 |
| ITF M15 Kaarst | 2019/02/04 08:30 | Nikolas Walterscheid-Tukic v Luca Gelhardt | 7-5,1-6,4-10 |
| ITF Egypt F26 | 2018/11/07 09:35 | Nikolas Walterscheid-Tukic v Duje Ajdukovic | 2-6,2-6 |
| ITF Egypt F26 | 2018/11/05 08:00 | Anton Chekhov v Nikolas Walterscheid-Tukic | 1-6,4-6 |
| ITF Egypt F26 | 2018/11/04 08:00 | Volodymyr Malakhov v Nikolas Walterscheid-Tukic | 0-6,0-6 |
| ITF Germany F14 | 2018/10/01 10:00 | Max Wiskandt v Nikolas Walterscheid-Tukic | 7-6,7-6 |
| ITF Germany F14 | 2018/09/30 11:30 | Max Hans Rehberg v Nikolas Walterscheid-Tukic | 6-2,1-6,4-6 |
| ITF Germany F8 Qual | 2018/07/16 13:45 | Nikolas Walterscheid-Tukic v Lucas Gerch | 4-6,4-6 |
| ITF Germany F8 Qual | 2018/07/15 12:00 | Scott Puodziunas v Nikolas Walterscheid-Tukic | 4-6,3-6 |