Stadium: Court 3 Round: 25 Ground: Clay
| ITF M15 Telfs | 2019/07/10 11:25 | Sandro Ehrat v Gabriel Donev | 6-0,6-3 |
| ITF M15 Belgrade | 2019/07/03 12:25 | Goran Zivotic v Gabriel Donev | 6-4,7-5 |
| ITF M15 Plovdiv | 2019/06/06 07:00 | Evgeny Tyurnev v Gabriel Donev | 6-1,3-6,6-1 |
| ITF M15 Plovdiv | 2019/06/05 07:00 | Aliaksandr Liaonenka v Gabriel Donev | 3-6,0-6 |
| ITF M15 Heraklion | 2019/05/24 07:00 | Gabriel Donev v Jonas Trinker | 1-6,1-6 |
| ITF M15 Heraklion | 2019/05/22 09:30 | Pablo Vivero Gonzalez v Gabriel Donev | 4-6,4-6 |
| ITF M15 Heraklion | 2019/05/20 11:00 | Gabriel Donev v Moritz Thiem | 0-6,6-3,10-7 |
| ITF M15 Heraklion | 2019/05/20 07:00 | Gabriel Donev v Vasilios Caripi | 6-1,6-0 |
| ITF M15 Alkmaar | 2019/06/25 08:00 | Patrik Hartmeier v Amadatus Admiraal | 6-1,4-6,7-10 |
| ITF M15 Reggio Emilia | 2019/05/27 12:30 | Giacomo Dambrosi v Patrik Hartmeier | 7-6,7-6 |
| ITF M15 Prague | 2019/05/13 08:30 | Antonin Stepanek v Patrik Hartmeier | 7-5,6-1 |
| ITF M25 Santa Margherita | 2019/04/15 12:00 | Victor Vlad Cornea v Patrik Hartmeier | 6-1,6-2 |
| ITF M25 Sunderland | 2019/04/08 16:00 | Patrik Hartmeier v Anton Matusevich | 4-6,1-6 |
| ITF M25 Sunderland | 2019/04/08 08:40 | Patrik Hartmeier v James Mackinlay | 7-5,3-6,10-8 |
| ITF M15 Oslo | 2019/03/05 09:00 | Jordan Hasson v Patrik Hartmeier | 7-6,3-6,10-8 |
| ITF M15 Oslo | 2019/03/04 09:00 | Daniil Glinka v Patrik Hartmeier | 6-4,3-6,2-10 |