Stadium: Court 7 Round: 25 Ground: Hardcourt outdoor
| ITF Finland F3 | 2018/08/15 08:00 | Karl Friberg v Kristjan Tamm | 6-3,6-2 |
| ITF Finland F2 | 2018/08/08 08:00 | Kristjan Tamm v Karl Friberg | 4-6,3-6 |
| ITF M15 Telavi | 2019/08/03 06:00 | Bondarevskiy, Yan v Kristjan Tamm | 6-2,6-1 |
| ITF M15 Telavi | 2019/08/02 06:00 | Kristjan Tamm v Tsivadze, George | 6-4,6-3 |
| ITF M15 Telavi | 2019/08/01 06:00 | Maulenov, Timur v Kristjan Tamm | 3-6,4-6 |
| ITF M15 Telavi | 2019/07/31 06:00 | Kristjan Tamm v Metreveli, Irakli | 6-2,6-2 |
| ITF M15 Telavi | 2019/07/24 07:40 | Kristjan Tamm v Koray Kirci | 3-6,6-7 |
| ITF M15 Parnu | 2019/07/17 07:00 | Kristjan Tamm v Luigi Sorrentino | 4-6,6-7 |
| ITF M25 Montauban | 2019/06/25 09:50 | Joffrey De Schepper v Kristjan Tamm | 7-6,2-6,13-11 |
| ITF M25 Montauban | 2019/06/24 12:35 | Lucas Bouquet v Kristjan Tamm | 1-6,3-6 |
| Koksijde, Singles M-ITF-BEL-04A | 2019/08/16 08:30 | Barbosa, Romain v Karl Friberg | 2-6,6-4,6-2 |
| Koksijde, Singles M-ITF-BEL-04A | 2019/08/15 10:55 | Nicolas Tepmahc v Karl Friberg | 5-7,6-1,2-6 |
| Koksijde, Singles M-ITF-BEL-04A | 2019/08/13 13:00 | Buvaysar Gadamauri v Karl Friberg | 4-6,2-6 |
| Ystad, Singles M-ITF-SWE-03A | 2019/08/08 14:50 | Karl Friberg v Ruzgas, Marius | 5-7,4-6 |
| Ystad, Singles M-ITF-SWE-03A | 2019/08/06 11:40 | Karl Friberg v Solberg, Christoffer | 4-6,6-2,7-6 |
| ITF M15 Parnu | 2019/07/17 07:00 | Siim Troost v Karl Friberg | 6-3,1-6,7-6 |
| ITF M15 Vilnius | 2019/07/09 13:10 | Denis Klok v Karl Friberg | 6-2,6-3 |
| Den Haag, Singles Qualifying M-ITF-NED-02A | 2019/07/04 13:10 | Karl Friberg v Zukas, Matias | 1-6,1-6 |