| ITF M15 Vienna | 08/30 10:15 | - | Neil Oberleitner v Karl Friberg | 6-3,6-4 | |
| ITF M15 Vienna | 08/29 12:00 | - | Aleksander Chayka v Karl Friberg | 4-6,4-6 | |
| ITF M15 Vienna | 08/27 08:00 | - | Karl Friberg v Mikalai Haliak | 2-0 | |
| ITF M15 Bastad | 08/21 09:45 | - | Daniele Rapagnetta v Karl Friberg | 7-5,6-2 | |
| ITF M25 Kramsach | 07/17 10:14 | - | Karl Friberg v Niklas Waldner | 6-3,4-6,1-6 | |
| ITF M25 Kramsach | 07/16 14:00 | - | Sebastian Sorger v Karl Friberg | 4-6,6-1,4-6 | |
| ITF M15 Telfs | 07/11 08:00 | - | Stefano D'Agostino v Karl Friberg | 2-6,6-2,7-5 | |
| ITF M15 Telfs | 07/10 11:41 | - | Jonas P Hartenstein v Karl Friberg | 2-6,3-6 | |
| ITF M15 Telfs | 07/09 08:00 | - | Karl Friberg v Gianmarco Ferrari | 6-7,6-2,6-1 | |
| ITF M15 Saarlouis | 06/17 12:22 | - | Karl Friberg v Jose Pereira | 4-6,4-6 | |
| ITF M25 Varnamo | 06/11 12:00 | - | Karl Friberg v David Jorda Sanchis | 5-7,6-7 | |
| ITF M15 Kalmar | 05/15 11:50 | 25 | Nikos Lehmann v Karl Friberg | Retired |
Karl Friberg (born 25 March 1999) is a Swedish tennis player.
Friberg has a career high ATP singles ranking of No. 355 achieved on 19 June 2023. In the ATP doubles ranking he has a career high ranking of No. 690 achieved on 26 June 2023.
Friberg made his ATP main draw debut at the 2021 Stockholm Open after entering the doubles main draw as an alternate with Mohamed Safwat.
He received a wildcard for the 2023 Stockholm Open partnering Jonathan Mridha.