Stadium: Court 5 Round: 25 Ground: Clay
| ITF M15 Troisdorf | 2019/05/09 08:00 | Marvin Netuschil v Johan Nikles | 7-6,7-6 |
| ITF M15 Madrid | 2019/04/19 13:00 | Johan Nikles v Marvin Netuschil | 6-2,4-6,7-6 |
| ITF Switzerland F2 Qual | 2016/02/14 10:00 | Marvin Netuschil v Johan Nikles | 6-4,6-4 |
| ITF M25 Reus | 2021/04/16 08:00 | Shintaro Mochizuki v Johan Nikles | 3-6,6-4,6-4 |
| ITF M25 Reus | 2021/04/15 08:00 | Johan Nikles v Miguel Damas | 6-0,6-1 |
| ITF M25 Reus | 2021/04/13 09:05 | Johan Nikles v Jordi Garcia Mestre | 6-2,6-2 |
| ITF M25 Biel | 2021/03/30 13:10 | Johan Nikles v Dan Added | 2-6,6-3,1-6 |
| Challenger Lugano | 2021/03/22 09:30 | Johan Nikles v Vitaliy Sachko | 2-6,5-7 |
| Challenger Lugano | 2021/03/21 09:00 | Jesper De Jong v Johan Nikles | 6-0,4-6,4-6 |
| Challenger Biella Qual | 2021/03/14 12:40 | Johan Nikles v Jack Sock | 7-6,3-6,1-6 |
| ITF M25 Vale Do Lobo | 2021/03/10 11:40 | Maximilian Neuchrist v Johan Nikles | 3-6,7-5,6-0 |
| ITF M25 Meerbusch | 2021/04/14 10:30 | Alexander Erler v Marvin Netuschil | 6-3,6-2 |
| ITF M25 Meerbusch | 2021/04/13 11:30 | Marvin Netuschil v Mats Hermans | 6-4,6-1 |
| ITF M25 Meerbusch | 2021/04/12 13:00 | Marvin Netuschil v Patric Prinoth | 6-1,6-1 |
| ITF M25 Meerbusch | 2021/04/12 09:30 | Marvin Netuschil v Kai Lemstra | 6-2,6-3 |
| ITF M15 Antalya | 2021/03/03 06:50 | Miljan Zekic v Marvin Netuschil | 6-0,6-3 |
| ITF M15 Antalya | 2021/02/07 06:00 | Marvin Netuschil v Sandro Kopp | 5-7,4-6 |
| ITF M15 Antalya | 2021/01/31 06:30 | Marvin Netuschil v Gabriel Donev | 4-6,6-7 |
| ITF M25 Hamburg | 2020/10/20 10:00 | Marvin Netuschil v Camilo Ugo Carabelli | 2-6,2-6 |