Stadium: Indoor 3 Round: 62 Ground: Clay
| ITF M25 Santa Margherita | 2023/04/09 08:00 | Pietro Pampanin v Nico Hornitschek | 6-3,6-4 |
| ITF M15 Lons-le-Saunier | 2023/04/02 11:00 | Nico Hornitschek v Alexandre Ruscica | 2-6,2-6 |
| ITF M25 Trimbach | 2023/03/16 09:00 | Maximilian Neuchrist v Nico Hornitschek | 6-4,6-4 |
| ITF M25 Trimbach | 2023/03/15 10:20 | Nico Hornitschek v Noah Lopez | 7-6,4-6,6-2 |
| ITF M25 Trimbach | 2023/03/14 09:00 | Nico Hornitschek v Leo Galliano | 6-0,6-3 |
| ITF M25 Trimbach | 2023/03/13 09:00 | Nico Hornitschek v Alexander Wolfschmidt | 4-6,6-3,10-5 |
| ITF M25 Quinta Do Lago | 2023/03/07 10:30 | Nico Hornitschek v Stepan Pecak | 4-6,4-6 |
| ITF M25 Torello | 2023/02/26 13:00 | Zhenxiong Dong v Nico Hornitschek | 6-3,7-5 |
| ITF M15 Antalya | 2023/04/03 09:20 | Tommaso Carnevale-Miino v Niels Visker | 6-4,2-6,10-6 |
| ITF M15 Antalya | 2023/04/02 07:00 | Guy Den Heijer v Niels Visker | 1-6,6-4,3-10 |
| ITF M15 Antalya | 2023/03/27 07:00 | Gheorghe Claudiu Schinteie v Niels Visker | 6-4,5-7,10-6 |
| ITF M15 Antalya | 2023/03/26 08:00 | Federico Valle v Niels Visker | 3-6,1-6 |
| ITF M25 Quinta Do Lago | 2023/03/08 16:30 | Niels Visker v Ian Luca Cervantes Tomas | 3-6,4-6 |
| ITF M25 Quinta Do Lago | 2023/03/08 12:00 | Niels Visker v Francisco Vilaca | 6-0,6-4 |
| ITF M25 Quinta Do Lago | 2023/03/07 12:30 | Niels Visker v Aditya Katticaren | 6-0,6-0 |
| ITF M25 Loule | 2023/02/28 10:30 | Guy Den Ouden v Niels Visker | 2-6,7-5,10-2 |