Stadium: SundS Court Round: 26 Ground: Clay
| ITF M15 - Marburg | 2019/07/09 12:00 | Nikolay Vylegzhanin v Ondrej Krstev | 6-7,6-7 |
| ITF M15 - Wroclaw | 2019/07/03 08:00 | Ondrej Krstev v Daniel Michalski | 4-6,2-6 |
| ITF M25 - Pardubice | 2019/06/24 08:00 | Timo Stodder v Ondrej Krstev | 6-2,6-3 |
| ITF M15 - Balatonalmadi | 2019/06/18 08:00 | Ondrej Krstev v Charles Broom | 2-6,3-6 |
| ITF M15 - Balatonalmadi | 2019/06/17 10:30 | Ondrej Krstev v Andras Necz | 6-3,6-3 |
| ITF M25 - Most | 2019/05/31 08:00 | Colin Sinclair v Ondrej Krstev | 6-2,6-3 |
| ITF M25 - Most | 2019/05/30 10:25 | Ondrej Krstev v Jacob Grills | 2-6,6-4,6-3 |
| ITF M25 - Most | 2019/05/28 13:30 | Ondrej Krstev v Daniel Dutra Da Silva | 6-4,6-3 |
| ITF M15 - Marburg | 2019/07/09 09:00 | Marek Gengel v Kai Wehnelt | 2-6,4-6 |
| ITF M15 - Troisdorf | 2019/05/09 08:00 | Kai Wehnelt v Constantin Schmitz | 2-6,2-6 |
| ITF M15 - Troisdorf | 2019/05/07 08:00 | Mateo Nicolas Martinez v Kai Wehnelt | 6-0,6-7,2-6 |
| ITF M15 - Cairo | 2019/05/03 10:20 | Adrian Andrzejczuk v Kai Wehnelt | 7-6,6-1 |
| ITF M15 - Cairo | 2019/05/02 11:30 | Gauthier Onclin v Kai Wehnelt | 2-6,1-6 |
| ITF M15 - Cairo | 2019/05/01 10:50 | Roman Blokhin v Kai Wehnelt | 6-2,4-6,3-6 |
| ITF M15 - Cairo | 2019/04/24 12:00 | Manfred Fellin v Kai Wehnelt | 5-7,6-3,6-3 |
| ITF M15 - Cairo | 2019/04/19 08:00 | Kai Wehnelt v Pol Toledo Bague | 2-6,0-6 |