| Austrian Tennis Championship | 2020/07/07 11:05 | Bjorn Nareyka v Sandro Kopp | 2-6,2-6 |
| ITF M15 Heraklion | 2020/03/10 11:20 | Bjorn Nareyka v Gian Luca Tanner | 3-6,1-6 |
| ITF M15 Heraklion | 2020/03/10 08:00 | Simon Beaupain v Bjorn Nareyka | 4-6,5-7 |
| ITF M15 Heraklion | 2020/03/08 08:30 | Stephanos Schinas v Bjorn Nareyka | 3-6,4-6 |
| ITF M15 Heraklion | 2020/03/01 08:30 | Andrea Del Federico v Bjorn Nareyka | 4-6,6-2,10-8 |
| ITF M15 Cairo | 2019/12/09 08:00 | Andrea Del Federico v Bjorn Nareyka | 4-6,6-1,10-4 |
| ITF M15 Cairo | 2019/12/02 10:00 | Joao M Nusdeo v Bjorn Nareyka | 6-4,6-7,10-6 |
| ITF M15 Cairo | 2019/12/01 12:00 | Bjorn Nareyka v Omar El-Moslemany | 6-0,0-6,10-5 |
| Austrian Tennis Championship | 2020/07/13 10:10 | Philip Bachmaier v Niklas Waldner | 3-6,3-6 |
| ITF M15 Sharm El Sheikh | 2020/02/09 10:00 | Tomas Papik v Niklas Waldner | 6-2,6-2 |
| ITF M15 Sharm El Sheikh | 2020/02/02 08:00 | Quentin Gueydan v Niklas Waldner | 7-6,6-2 |
| ITF M15 Wels | 2019/07/22 07:30 | Niklas Waldner v Teodor Giusca | 6-1,5-7,4-10 |
| ITF M15 Kramsach | 2019/07/16 09:00 | Tomas Machac v Niklas Waldner | 6-2,6-4 |
| ITF M15 Telfs | 2019/07/08 07:30 | Niklas Waldner v Nicolas Uryson | 0-6,1-6 |
| ITF Germany F14 | 2018/09/30 11:30 | Mikhail Minakov v Niklas Waldner | 6-4,6-2 |
| ITF Austria F6 | 2018/08/04 11:30 | Niklas Waldner v Giordan Kunz | 1-6,3-6 |