| WTT Contender Zagreb WD | 2023/06/29 16:35 | Jeon/Shin v Schreiner/Klee | L | 3-0 |
| WTT Contender Zagreb WD Quals | 2023/06/28 08:45 | Schreiner/Klee v Hartbrich/Imre | W | 3-1 |
| WTT Contender Zagreb WD Quals | 2023/06/27 07:30 | Goi/Ser v Schreiner/Klee | W | 1-3 |
| WTT Contender Tunis WD Quals | 2023/06/20 14:15 | Kim/Yoon v Schreiner/Klee | L | 3-2 |
| WTT Feeder Dusseldorf II WD | 2023/02/22 17:25 | Mantz/Wan v Schreiner/Klee | L | 3-1 |
| WTT Feeder Dusseldorf WD | 2023/02/16 15:00 | Schreiner/Klee v Huang/Yu-Jie Huang | L | 1-3 |
| WTT Feeder Dusseldorf WD | 2023/02/16 09:50 | Malobabic/Jeger v Schreiner/Klee | W | 2-3 |
| WTT Feeder Dusseldorf WD | 2023/02/15 18:00 | Schreiner/Klee v Ortega/Vega | W | 3-0 |