| Czech Open - Kval | 2019/09/26 09:00 | Brian Holtschke v Miha Ivanic | W | 2-0 |
| Polen - Int. | 2019/09/20 09:40 | Brian Holtschke v Tobias Kuenzi | L | 0-2 |
| Polish Int. - Kval | 2019/09/19 07:35 | Piotr Gajda v Brian Holtschke | W | 0-2 |
| Hellas Open Qual | 2019/08/08 10:45 | Brian Holtschke v Chong King Lim | L | 0-2 |
| Hellas Open Qual | 2019/08/08 08:55 | Filip Spoljarec v Brian Holtschke | W | 0-2 |
| Hellas Open Qual | 2019/08/08 07:00 | Dimitar Nenchev v Brian Holtschke | W | 0-2 |
| Litauen - Int. - Kval | 2019/06/07 06:00 | Brian Holtschke v Mateusz Dubowski | L | 0-2 |
| Litauen - Int. - Kval | 2019/06/06 14:00 | Vilius Bagdanavicius v Brian Holtschke | W | 0-2 |
| Czech Open - Kval | 2019/09/26 08:00 | Michal Matysiak v Lukas Holub | W | 0-2 |
| Swiss Open - Damdubbel - Kval | 2018/09/27 13:10 | Lukas Holub v Jack MacGregor | L | 0-2 |
| Swiss Open - Damdubbel - Kval | 2018/09/20 16:55 | David Kramer v Lukas Holub | L | 2-0 |
| Giraldilla Int. - Mixed dubbel | 2017/09/21 11:00 | Michal Gomola v Lukas Holub | W | 0-2 |