Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/02/20 16:10 | Daniel Rinderer v Andrei Putuntica | L | 1-3 |
| Challenger Series TT | 2023/02/20 10:10 | Daniel Rinderer v Norbert Tauler | L | 2-3 |
| Challenger Series TT | 2023/02/20 07:30 | Daniel Rinderer v Pekka Pelz | W | 3-1 |
| Challenger Series TT | 2023/01/10 10:10 | Kestutis Zeimys v Daniel Rinderer | W | 2-3 |
| Challenger Series TT | 2023/01/10 08:10 | Daniel Rinderer v Dauud Cheaib | L | 2-3 |
| Challenger Series TT | 2023/01/09 20:10 | Yongyin Li v Daniel Rinderer | L | 3-0 |
| Challenger Series TT | 2023/01/09 17:30 | Yannick Vostes v Daniel Rinderer | L | 3-0 |
| Challenger Series TT | 2023/01/09 14:50 | Daniel Rinderer v Jean Rassouw | W | 3-0 |
| Challenger Series TT | 2023/02/20 15:30 | David Reitspies v Miguel Nunez | W | 3-0 |
| Challenger Series TT | 2023/02/20 13:30 | David Reitspies v Dauud Cheaib | W | 3-1 |
| Challenger Series TT | 2023/02/20 12:10 | David Reitspies v Pekka Pelz | W | 3-1 |
| Challenger Series TT | 2023/02/20 09:30 | Andrei Putuntica v David Reitspies | W | 0-3 |
| TT Star Series | 2023/02/14 14:03 | David Reitspies v Viktor Yefimov | W | 3-0 |
| TT Star Series | 2023/02/14 12:59 | David Reitspies v Mohamed Shouman | L | 1-3 |
| TT Star Series | 2023/02/14 11:15 | David Reitspies v Boguslaw Koszyk | W | 3-0 |
| TT Star Series | 2023/02/14 09:15 | David Reitspies v Alvaro Gainza | W | 3-0 |