| Challenger Series TT | 07/07 08:00 | - | Viacheslav Diachenko vs Florian Bluhm | - | View | |
| Challenger Series TT | 07/07 09:30 | - | Viacheslav Diachenko vs Dipika Pallikal | - | View | |
| Challenger Series TT | 07/07 14:00 | - | Luis Kraus vs Viacheslav Diachenko | - | View | |
| Challenger Series TT | 07/07 16:00 | - | Viktor Yefimov vs Viacheslav Diachenko | - | View | |
| Challenger Series TT | 07/07 17:30 | - | Viacheslav Diachenko vs Tobias Saltzer | - | View | |
| Challenger Series TT | 07/08 07:30 | - | Marius Henninger vs Viacheslav Diachenko | - | View |
| 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 | |
| Challenger Series TT | 06/10 13:00 | - | Miguel Nunez Tapia v Viacheslav Diachenko | L | 3-0 | |
| Challenger Series TT | 06/10 10:00 | - | Alberto Lillo v Viacheslav Diachenko | L | 3-0 | |
| Challenger Series TT | 06/03 16:00 | - | Viacheslav Diachenko v Sven Wendegatz | W | 3-1 | |
| Challenger Series TT | 06/03 14:30 | - | Viacheslav Diachenko v Siddharta Almeida | W | 3-0 | |
| Challenger Series TT | 06/03 13:00 | - | Viacheslav Diachenko v Oleksii Degtiariov | W | 3-2 | |
| Challenger Series TT | 06/03 11:00 | - | Viacheslav Diachenko v Mykhailo Mosiuk | L | 0-3 | |
| Challenger Series TT | 06/03 09:00 | - | Selangor v Viacheslav Diachenko | L | 3-1 |