| Challenger Series TT | 07/08 07:30 | - | Marius Henninger v Viacheslav Diachenko | L | 3-1 | |
| Challenger Series TT | 07/07 17:30 | - | Viacheslav Diachenko v Tobias Saltzer | L | 0-3 | |
| Challenger Series TT | 07/07 16:00 | - | Viktor Yefimov v Viacheslav Diachenko | L | 3-0 | |
| Challenger Series TT | 07/07 14:00 | - | Luis Kraus v Viacheslav Diachenko | L | 3-0 | |
| Challenger Series TT | 07/07 12:00 | - | Viacheslav Diachenko v Felix Muller | W | 3-0 | |
| Challenger Series TT | 07/07 09:30 | - | Viacheslav Diachenko v Oleksii Dehtiarov | L | 1-3 | |
| Challenger Series TT | 07/07 08:00 | - | Viacheslav Diachenko v Florian Bluhm | L | 0-3 | |
| Challenger Series TT | 06/10 19:30 | - | Viacheslav Diachenko v Mykhailo Mosiuk | L | 1-3 | |
| Challenger Series TT | 06/10 18:30 | - | Viacheslav Diachenko v Florian Saljani | W | 3-1 | |
| Challenger Series TT | 06/10 17:30 | - | Viacheslav Diachenko v Sven Wendegatz | W | 3-0 | |
| Challenger Series TT | 06/10 16:30 | - | Serhii Kaminskyi v Viacheslav Diachenko | W | 0-3 | |
| Challenger Series TT | 06/10 15:00 | - | Alexander Krebs v Viacheslav Diachenko | L | 3-0 |