Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/12/12 07:30 | Dennis Klein v Bohdan Sinkevych | L | 3-1 |
| Challenger Series TT | 2023/05/04 09:50 | Dennis Klein v Bohdan Sinkevych | L | 3-0 |
| Challenger Series TT | 2023/03/27 07:50 | Dennis Klein v Bohdan Sinkevych | L | 3-0 |
| Challenger Series TT | 2023/02/10 09:30 | Bohdan Sinkevych v Dennis Klein | L | 1-3 |
| Challenger Series TT | 2022/10/06 11:10 | Bohdan Sinkevych v Dennis Klein | L | 0-3 |
| Challenger Series TT | 2024/02/13 11:30 | Alberto Mino v Bohdan Sinkevych | L | 3-0 |
| Challenger Series TT | 2024/02/13 07:30 | Miguel Nunez v Bohdan Sinkevych | L | 3-0 |
| Challenger Series TT | 2024/02/12 19:30 | Bohdan Sinkevych v Armin Alicic | W | 3-1 |
| Challenger Series TT | 2024/02/12 16:10 | Bohdan Sinkevych v Rafael Turrini | L | 0-3 |
| Challenger Series TT | 2024/02/12 14:10 | Sudhanshu Grover v Bohdan Sinkevych | L | 3-1 |
| Challenger Series TT | 2024/02/12 11:30 | Takuto Shiba v Bohdan Sinkevych | L | 3-1 |
| Challenger Series TT | 2024/02/12 08:50 | Dauud Cheaib v Bohdan Sinkevych | L | 3-0 |
| Challenger Series TT | 2024/01/09 10:50 | Tobias Slanina v Bohdan Sinkevych | L | 3-0 |
| Challenger Series TT | 2024/02/27 14:30 | Liang Qiu v Dennis Klein | W | 1-3 |
| Challenger Series TT | 2024/02/27 13:05 | Dennis Klein v Mohammed Javad Sohrabi | W | 3-0 |
| Challenger Series TT | 2024/02/27 08:50 | Alexander Valuch v Dennis Klein | W | 1-3 |
| Challenger Series TT | 2024/02/26 20:50 | Samuel Amann v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2024/02/26 18:50 | Akito Itagaki v Dennis Klein | L | 3-1 |
| Challenger Series TT | 2024/02/26 16:50 | Dennis Klein v Mohammed Javad Sohrabi | W | 3-0 |
| Challenger Series TT | 2024/02/26 14:10 | Dennis Klein v Sven Happek | W | 3-0 |
| Challenger Series TT | 2024/02/26 12:10 | Dennis Klein v Haruki Harada | L | 2-3 |