| Challenger Series TT | 04/30 12:45 | 1 | Dennis Klein v Liang Qiu | W | 3-0 | |
| Challenger Series TT | 04/30 10:45 | 2 | Dennis Klein v Kirill Fadeev | W | 3-1 | |
| Challenger Series TT | 04/30 09:25 | - | Kirill Fadeev v Dennis Klein | W | 0-3 | |
| Challenger Series TT | 04/30 08:15 | - | Dennis Klein v Liang Qiu | W | 3-1 | |
| Challenger Series TT | 04/29 17:00 | - | Alvaro Gainza v Dennis Klein | W | 0-3 | |
| Challenger Series TT | 04/29 17:00 | - | Rafael Turrini v Dennis Klein | - | CANC | |
| Challenger Series TT | 04/29 14:40 | - | Mohammed Javad Sohrabi v Dennis Klein | L | 3-1 | |
| Challenger Series TT | 04/29 12:55 | - | Reda Nemras v Dennis Klein | W | 0-3 | |
| Challenger Series TT | 04/29 10:00 | - | Tobias Slanina v Dennis Klein | W | 0-3 | |
| Challenger Series TT | 04/29 08:20 | - | Michael Engelhardt v Dennis Klein | W | 0-3 | |
| Challenger Series TT | 04/26 12:45 | 1 | Benjamin Fruchart v Dennis Klein | W | 2-3 | |
| Challenger Series TT | 04/26 11:20 | 2 | Albert Vilardell v Dennis Klein | W | 2-3 |