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 | 2019/07/24 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 |
| ITF M15 Irpin | 2019/05/29 08:55 | Denis Yevseyev v Kristjan Tamm | 7-6,6-2 |
| ITF M15 Irpin | 2019/05/28 12:50 | Vladimir Ivanov v Kristjan Tamm | 6-4,3-6,4-6 |
| ITF M15 Irpin | 2019/05/27 11:00 | Kristjan Tamm v Timur Maulenov | 6-0,6-0 |
| ITF M15 Irpin | 2019/05/27 06:30 | Kristjan Tamm v Federico Bertuccioli | 6-4,6-2 |
| 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 |
| ITF M15 Den Haag | 2019/07/04 13:10 | Karl Friberg v Matias Zukas | 1-6,1-6 |
| ITF M15 Den Haag | 2019/07/03 13:45 | Takanyi Garanganga v Karl Friberg | 4-6,6-4,6-7 |
| ITF M15 Alkmaar | 2019/06/26 08:00 | Karl Friberg v Bastian Malla | 2-6,3-6 |
| ITF M15 Balatonalmadi | 2019/06/18 10:05 | Karl Friberg v Matyas Fuele | 6-4,3-6,8-10 |
| ITF M15 Balatonalmadi | 2019/06/17 10:30 | Karl Friberg v Marcell Bartakovics | 6-1,6-4 |
| ITF M15 Irpin | 2019/05/30 09:20 | Karl Friberg v Arnaud Bovy | 2-6,2-6 |