Stadium: Court 9 Round: 25 Ground: Clay
| ITF M15 - Vejle | 2022/07/24 07:00 | Richard Biagiotti v Nikolaj Katic | 6-0,6-4 |
| ITF M15 - Antalya | 2022/05/22 07:00 | Nikolaj Katic v Jesse De Jager | 7-6,3-6,4-10 |
| ITF M15 - Antalya | 2022/05/15 07:00 | Nikolaj Katic v Jasza Szajrych | 0-6,2-6 |
| ITF M25 - Kalmar | 2022/05/10 09:35 | Nikolaj Katic v Eric Lindstrom | 4-6,6-4,6-10 |
| ITF M25 - Kalmar | 2022/05/09 13:25 | Nikolaj Katic v Kenzo K Larsson | 3-6,6-1,10-3 |
| UTR Pro Tennis Series - Köpenhamn | 2022/04/26 12:00 | Nikolaj Katic v Yanais Laurent | 3-6,1-4 |
| UTR Pro Tennis Series - Köpenhamn | 2022/04/25 10:30 | Josef Southcombe v Nikolaj Katic | 6-1,5-4 |
| ITF M25 - Porec | 2022/03/09 10:45 | Nikolaj Katic v Alexandar Lazarov | 0-6,5-7 |
| ITF M15 - Vejle | 2022/07/28 11:45 | Maxime Chazal v Karl Friberg | 6-4,2-6,7-5 |
| ITF M15 - Vejle | 2022/07/27 15:30 | Elmer Moller v Karl Friberg | 4-6,2-6 |
| ITF M15 - Metzingen | 2022/07/21 11:00 | Johannes Haerteis v Karl Friberg | 6-4,1-6,6-3 |
| ITF M15 - Metzingen | 2022/07/19 12:00 | Adam Blecha v Karl Friberg | 1-6,1-6 |
| ATP Båstad | 2022/07/10 12:30 | Fabio Fognini v Karl Friberg | 6-4,6-4 |
| ITF M25 - Den Haag | 2022/06/29 18:30 | Karl Friberg v Philip Sekulic | 2-6,6-4,4-6 |
| ITF M15 - Alkmaar | 2022/06/25 13:20 | Karl Friberg v Daniel Rincon | 3-6,4-6 |
| ITF M15 - Alkmaar | 2022/06/24 13:50 | Karl Friberg v Max Houkes | 6-0,6-1 |