Stadium: Court 4 Round: 26 Ground: Hardcourt outdoor
| ITF M15 Doha | 2019/10/23 12:00 | Valentin Guenther v Peter Goldsteiner | 6-2,6-3 |
| ITF M15 Doha | 2019/10/16 15:55 | Valentin Guenther v Ricardo Rodriguez-Pace | 3-6,6-7 |
| ITF M25 Nevers | 2019/10/03 09:00 | Valentin Guenther v Dan Added | 3-6,2-6 |
| ITF M15 Horgen | 2019/08/30 11:00 | Valentin Guenther v Damien Wenger | 1-6,4-6 |
| ITF M15 Horgen | 2019/08/28 11:25 | Antoine Bellier v Valentin Guenther | 4-6,7-6,3-6 |
| ITF M15 Uberlingen | 2019/08/22 08:00 | Peter Heller v Valentin Guenther | 6-4,6-3 |
| ITF M15 Uberlingen | 2019/08/21 09:35 | Valentin Guenther v Manfred Fellin | 3-6,6-2,6-1 |
| ITF M25 Kassel | 2019/07/19 12:00 | Sadio Doumbia v Valentin Guenther | 7-5,6-2 |
| ITF M15 Doha | 2019/10/23 12:00 | Karl Friberg v Alexander Igoshin | 6-4,6-4 |
| ITF M25 Falun | 2019/10/03 12:00 | Martins Podzus v Karl Friberg | 6-3,6-4 |
| ITF M25 Falun | 2019/10/01 11:00 | Simon Yitbarek v Karl Friberg | 3-6,2-6 |
| ITF M25 Stockholm | 2019/09/25 12:45 | Karl Friberg v Kaichi Uchida | 4-6,4-6 |
| ITF M25 Mulhouse | 2019/09/12 14:25 | Alen Avidzba v Karl Friberg | 6-3,6-1 |
| ITF M25 Mulhouse | 2019/09/11 09:00 | Albano Olivetti v Karl Friberg | 2-6,4-6 |
| ITF M15 Helsinki | 2019/08/23 10:00 | Jose Fco. Vidal Azorin v Karl Friberg | 6-3,2-6,6-3 |
| ITF M15 Helsinki | 2019/08/22 08:00 | Maciej Smola v Karl Friberg | 3-6,3-6 |