| ITF M25 Weston | 2022/01/26 15:00 | Karl Friberg v Timo Stodder | 6-7,6-7 |
| ITF M25 Vilnius | 2022/01/19 13:10 | Daniel Cukierman v Karl Friberg | 6-7,6-3,6-4 |
| ITF M25 Vilnius | 2022/01/18 14:45 | Karl Friberg v Ainius Sabaliauskas | 6-2,6-4 |
| ITF M25 Vilnius | 2022/01/17 08:00 | Karl Friberg v Matic Dimic | 6-4,6-2 |
| ITF M15 Heraklion | 2021/11/23 08:30 | Karl Friberg v Alastair Gray | 2-6,5-7 |
| ITF M15 Heraklion | 2021/11/17 10:00 | Filip Bergevi v Karl Friberg | 6-3,7-6 |
| ITF M25 Falun | 2021/09/27 09:20 | Karl Friberg v Daniel Little | 1-6,2-6 |
| ITF M25 Falun | 2021/09/26 11:00 | Karl Friberg v Felipe Mikkelsen | 6-1,6-1 |
| UTR Pro Tennis Series Miami | 2022/01/30 14:00 | Brayden Michna v Nemanja Stefanovic | 1-6,4-6 |