Stadium: Court 01 Round: 26 Ground: Clay
| Austrian Tennis Championship | 2020/07/14 07:30 | Neil Oberleitner v Jakob Aichhorn | 6-4,6-3 |
| ITF M15 Warmbad-Villach | 2021/08/18 11:05 | Jakob Aichhorn v Ignacio Carou | 6-4,6-4 |
| ITF M15 Warmbad-Villach | 2021/08/15 07:00 | Jakob Aichhorn v Lukas Rohseano | 6-0,6-0 |
| ITF M25 Telfs | 2021/07/13 09:40 | Jakob Aichhorn v Daniel Paty | 4-6,3-6 |
| ITF M25 Telfs | 2021/07/12 09:10 | Jakob Aichhorn v Julius Ratt | 6-4,7-6 |
| Challenger Salzburg | 2021/07/06 15:00 | Jakob Aichhorn v Jiri Lehecka | 4-6,3-6 |
| ITF M15 Anif | 2020/08/26 10:00 | Jakob Aichhorn v Enrico Dalla Valle | 2-6,2-6 |
| ITF M25 Vogau | 2020/08/16 12:00 | Igor Sijsling v Jakob Aichhorn | 6-1,6-1 |
| Austrian Tennis Championship | 2020/07/14 07:30 | Neil Oberleitner v Jakob Aichhorn | 6-4,6-3 |
| ITF M15 Warmbad-Villach | 2021/08/18 10:05 | Neil Oberleitner v Savriyan Danilov | 7-5,7-6 |
| ITF M25 Frankfurt am Main | 2021/08/09 09:00 | Lenny Hampel v Neil Oberleitner | 6-4,6-4 |
| ITF M25 Kottingbrunn | 2021/07/21 12:10 | Neil Oberleitner v Toby Martin | 6-7,5-7 |
| ITF M25 Telfs | 2021/07/13 07:30 | Neil Oberleitner v Ondrej Horak | 4-6,4-6 |
| ITF M25 Telfs | 2021/07/12 07:50 | Neil Oberleitner v Jan Jermar | 6-3,6-0 |
| ITF M15 Sibenik | 2021/04/19 08:00 | Christian Sigsgaard v Neil Oberleitner | 7-6,6-4 |
| ITF M15 Sibenik | 2021/04/18 08:00 | Matic Dimic v Neil Oberleitner | 7-6,4-6,6-10 |
| ITF M15 Sharm El Sheikh | 2021/04/06 08:55 | Neil Oberleitner v Adam Jones | 2-6,6-1,8-10 |