Stadium: Court 1 Round: 27 Ground: Clay
| ITF Croatia F2 | 2018/03/14 10:35 | Prechtel, Sebastian v Nik Razborsek | 1-6,6-4,4-6 |
| Bad Schussenried, Singles Qualifying M-ITF-GER-10A | 2019/07/24 09:30 | Nik Razborsek v Gabriele Moghini | 6-4,6-4 |
| Bad Schussenried, Singles Qualifying M-ITF-GER-10A | 2019/07/23 14:35 | Nik Razborsek v Kai Lemstra | 6-2,6-3 |
| Umag, Croatia | 2019/07/14 08:00 | Salvatore Caruso v Nik Razborsek | 6-3,6-2 |
| Den Haag, Singles Qualifying M-ITF-NED-02A | 2019/07/04 09:05 | Nik Razborsek v Geoffrey Blancaneaux | 5-7,0-6 |
| Den Haag, Singles Qualifying M-ITF-NED-02A | 2019/07/02 15:05 | Nik Razborsek v Zwinkels, Jay | 6-0,6-0 |
| ITF M15 Kamen | 2019/06/27 11:40 | Nik Razborsek v Maiga, Riccardo | 5-7,6-7 |
| ITF M15 Kamen | 2019/06/25 10:40 | Nik Razborsek v Henri Squire | 6-2,2-6,6-2 |
| Kaltenkirchen, Singles Qualifying M-ITF-GER-05A | 2019/06/11 13:50 | Nik Razborsek v Damien Wenger | 6-4,1-6,1-6 |
| Bad Schussenried, Singles Qualifying M-ITF-GER-10A | 2019/07/24 12:00 | Prechtel, Sebastian v Michiel de Krom | 6-7,6-3,6-2 |
| Bad Schussenried, Singles Qualifying M-ITF-GER-10A | 2019/07/23 08:30 | Prechtel, Sebastian v Rief, Tobias | 6-3,6-0 |
| Kramsach, Singles M-ITF-AUT-02A | 2019/07/20 12:15 | Prechtel, Sebastian v Slobodchikov, Ronald | 2-6,2-6 |
| Kramsach, Singles M-ITF-AUT-02A | 2019/07/19 11:15 | Prechtel, Sebastian v Edoardo Lavagno | 5-7,6-4,7-6 |
| Kramsach, Singles M-ITF-AUT-02A | 2019/07/18 09:00 | Tomas Machac v Prechtel, Sebastian | 3-6,4-6 |
| Kramsach, Singles M-ITF-AUT-02A | 2019/07/16 09:00 | Bergevi, Filip v Prechtel, Sebastian | 6-3,3-6,4-6 |
| ITF M15 Telfs | 2019/07/09 11:00 | Prechtel, Sebastian v Vit Kopriva | 1-6,4-6 |
| Saarlouis, Singles Qualifying M-ITF-GER-07A | 2019/07/04 10:00 | Bogdan Bobrov v Prechtel, Sebastian | 6-3,6-4 |