| Challenger Series TT | 05/27 12:30 | - | Taha Kilicoglu vs David Kumpel | - | View | |
| Challenger Series TT | 05/27 14:00 | - | Herman Debizhansky vs David Kumpel | - | View | |
| Challenger Series TT | 05/27 15:30 | - | Max Klink vs David Kumpel | - | View | |
| Challenger Series TT | 05/27 17:30 | - | Alexander Sverdlik vs David Kumpel | - | View | |
| Challenger Series TT | 05/27 19:00 | - | Aurel Tihi vs David Kumpel | - | View | |
| Challenger Series TT | 05/27 20:00 | - | Marco Stefanidis vs David Kumpel | - | View |
| Challenger Series TT | 05/27 11:00 | - | Michael Fuchs v David Kumpel | L | 3-0 | |
| Challenger Series TT | 01/06 11:30 | - | David Kumpel v Dauud Cheaib | L | 0-3 | |
| Challenger Series TT | 01/06 08:50 | - | David Kumpel v Liang Qiu | L | 0-3 | |
| Challenger Series TT | 01/05 20:10 | - | David Kumpel v Samuel Amann | L | 2-3 | |
| Challenger Series TT | 01/05 15:30 | - | David Kumpel v Kirill Fadeev | L | 0-3 | |
| Challenger Series TT | 01/05 13:30 | - | David Kumpel v Marius Henninger | L | 0-3 | |
| Challenger Series TT | 01/05 10:10 | - | Daniel Rinderer v David Kumpel | L | 3-0 | |
| Challenger Series TT | 01/05 08:10 | - | David Kumpel v Salim Karam | L | 2-3 |