Stadium: Court 2 Round: 44 Ground: Hardcourt outdoor
| ITF - M15 Sharm El Sheikh | 2019/10/28 09:00 | Kossek, Daniel v Kai Lemstra | 1-6,1-6 |
| ITF - M25 Santa Margherita | 2019/10/07 12:00 | Kossek, Daniel v Mannapov, Alexander | 4-6,1-6 |
| ITF - M25 Santa Margherita | 2019/10/06 09:00 | Luigi Castelletti v Kossek, Daniel | 6-2,5-7,4-10 |
| Bydgoszcz, Singles Qualifying M-ITF-POL-04A | 2019/08/12 08:00 | Petr Michnev v Kossek, Daniel | 6-1,6-2 |
| Koszalin, Singles Qualifying M-ITF-POL-02A | 2019/08/06 08:00 | Noskin, Egor v Kossek, Daniel | 6-3,6-1 |
| Koszalin, Singles Qualifying M-ITF-POL-02A | 2019/08/05 08:00 | Kossek, Daniel v Borkowski, Mikolaj | 6-7,6-2,10-8 |
| ITF - M15 Antalya | 2019/05/20 07:45 | Gusev, Daniil v Kossek, Daniel | 6-4,6-1 |
| ITF - M15 Antalya | 2019/05/13 07:45 | Kossek, Daniel v Sergei Pogosian | 3-6,3-6 |
| ITF - M15 Sharm El Sheikh | 2019/10/28 10:00 | Portmann, Kevin v Lukas H Lilleengen | 2-6,0-6 |
| ITF - M15 Sharm El Sheikh | 2019/10/20 08:00 | Rogov, Denis v Portmann, Kevin | 6-2,6-2 |
| ITF - M15 Sharm El Sheikh | 2019/10/14 08:00 | Portmann, Kevin v Borroni, Andrea | 4-6,4-6 |
| ITF - M15 Sharm El Sheikh | 2019/10/13 08:00 | Portmann, Kevin v Yang, Mingyuan | 5-7,6-4,10-3 |
| ITF - M15 Sharm El Sheikh | 2019/09/30 10:00 | Olivarez, Eric Jr v Portmann, Kevin | 6-3,6-2 |
| ITF M15 Cairo | 2019/09/23 10:00 | Makhlouf, Sherif v Portmann, Kevin | 7-6,6-2 |
| ITF M15 Cairo | 2019/09/15 09:00 | Jadhav, Gunjan v Portmann, Kevin | 6-7,7-5,10-8 |
| ITF M15 Cairo | 2019/09/08 08:00 | Portmann, Kevin v Jadhav, Gunjan | 6-4,1-6,4-10 |