Stadium: CDR 9 Round: 26 Ground: Clay
| ITF Switzerland F2 Qual | 2016/02/14 10:00 | Netuschil, Marvin v Johan Nikles | 6-4,6-4 |
| ITF M15 Madrid | 2019/04/17 09:30 | Michiel de Krom v Johan Nikles | 3-6,6-7 |
| ITF M15 Reus | 2019/04/14 09:30 | Johan Nikles v Esteve Lobato, Eduard | 4-6,1-6 |
| ITF M15 Reus | 2019/04/13 08:00 | Matos, Rafael v Johan Nikles | 6-2,5-7,0-6 |
| ITF M15 Reus | 2019/04/12 08:30 | Johan Nikles v Pol Martin Tiffon | 7-6,2-6,7-5 |
| ITF M15 Reus | 2019/04/11 12:30 | Gil, Fred v Johan Nikles | 0-6,6-7 |
| ITF M15 Reus | 2019/04/10 09:40 | Gennaro, Dante v Johan Nikles | 2-6,2-6 |
| Portimao, Singles Qualifying M-ITF-POR-16A | 2019/03/12 11:00 | Johan Nikles v Tearney, Finn | 4-6,3-6 |
| ITF M15 Loule | 2019/03/06 14:30 | Johan Nikles v Gil, Fred | 6-7,4-6 |
| ITF M15 Madrid | 2019/04/17 09:30 | Cabral, Francisco v Netuschil, Marvin | 2-6,6-7 |
| ITF - M15 Antalya | 2019/03/31 07:30 | Safranek, Vaclav v Netuschil, Marvin | 4-6,6-1,6-2 |
| ITF - M15 Antalya | 2019/03/30 11:00 | Felipe Meligeni Rodrigues Alves v Netuschil, Marvin | 1-6,4-6 |
| ITF - M15 Antalya | 2019/03/29 12:30 | Voronin, Dimitriy v Netuschil, Marvin | 4-6,6-3,2-6 |
| ITF - M15 Antalya | 2019/03/28 08:30 | Nitin Kumar Sinha v Netuschil, Marvin | 5-7,2-6 |
| ITF - M15 Antalya | 2019/03/26 07:00 | Nadaf, Hamid Reza v Netuschil, Marvin | 2-6,3-6 |
| ITF - M15 Antalya | 2019/03/21 08:45 | Petrone, Alessandro v Netuschil, Marvin | 6-2,4-6,6-4 |
| ITF - M15 Antalya | 2019/03/19 07:15 | Denis Klok v Netuschil, Marvin | 3-6,4-6 |