Stadium: Court 1 Round: 27 Ground: Clay
| ITF Croatia F2 | 2018/03/14 10:35 | Sebastian Prechtel v Nik Razborsek | 1-6,6-4,4-6 |
| 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 Opatija | 2019/03/28 09:00 | Nik Razborsek v Jakob Aichhorn | 6-4,3-6,6-3 |
| ITF M15 Opatija | 2019/03/26 12:30 | Nik Razborsek v Franjo Raspudic | 0-6,6-2,6-3 |
| ITF M15 Porec | 2019/03/15 10:00 | Andrea Pellegrino v Nik Razborsek | 6-0,6-4 |
| ITF M15 Porec | 2019/03/14 09:00 | Nik Razborsek v Pavel Nejedly | 6-4,6-4 |
| ITF M15 Porec | 2019/03/12 10:25 | Nik Razborsek v Peter Nagy | 6-4,6-3 |
| ITF M15 Antalya | 2019/02/28 07:00 | Nik Razborsek v Alexander Shevchenko | 6-7,2-6 |
| ITF M15 Cancun | 2019/03/25 17:00 | Moritz Trocker v Sebastian Prechtel | 4-6,7-6,10-6 |
| ITF M15 Cancun | 2019/03/18 19:30 | Sebastian Prechtel v Junior Alexander Ore | 7-5,1-6,6-10 |
| ITF M15 Cancun | 2019/03/18 16:00 | Sebastian Prechtel v Alejandro Mendoza | 6-3,6-2 |
| ITF M15 Sharm El Sheikh | 2019/02/18 14:00 | Sebastian Prechtel v Marco Miceli | 4-6,5-7 |
| ITF M15 Sharm El Sheikh | 2019/02/18 09:00 | Sebastian Prechtel v Marco Zocastello | 6-3,7-5 |
| ITF M15 Sharm El Sheikh | 2019/02/11 14:10 | Sebastian Prechtel v Florian Lakat | 4-6,2-6 |
| ITF M15 Sharm El Sheikh | 2019/02/11 09:00 | Sebastian Prechtel v Giordan Kunz | 6-3,6-3 |
| ITF M15 Sharm El Sheikh | 2019/02/04 12:30 | Sebastian Prechtel v Neil Oberleitner | 6-3,6-7,5-10 |