Germany: Augsburg - Doubles - Main |
| Semi-finals | Frantzen C./Jebens H. | Oberleitner N./Sandkaulen T. | 2:0 (7:63, 6:0) | details | 25.08.2023 |
| Quarter-finals | Oberleitner N./Sandkaulen T. | Rodriguez Taverna S./Torres J. B. | 2:0 (6:4, 6:3) | details | 24.08.2023 |
| 1/8-finals | Oberleitner N./Sandkaulen T. | Merino A./Negritu Ch. | 2:1 (4:6, 6:4, 10:7) | details | 24.08.2023 |
Czech Republic: Liberec - Doubles - Main |
| Final | Nouza P./Paulson A. | Oberleitner N./Sandkaulen T. | 2:0 (6:3, 6:4) | details | 05.08.2023 |
| Semi-finals | Bittoun C./Uzhylovskyi V. | Oberleitner N./Sandkaulen T. | 0:2 (611:7, 5:7) | details | 04.08.2023 |
| Quarter-finals | Jebavy R./Vesely J. | Oberleitner N./Sandkaulen T. | 0:2 (3:6, 66:7) | details | 03.08.2023 |
| 1/8-finals | Stepanov R./Whiting T. | Oberleitner N./Sandkaulen T. | 0:2 (63:7, 2:6) | details | 02.08.2023 |
Austria: Salzburg - Doubles - Main |
| Quarter-finals | Cacic N./Cornea V. V. | Oberleitner N./Sandkaulen T. | 2:1 (4:6, 6:3, 10:4) | details | 13.07.2023 |
| 1/8-finals | Oberleitner N./Sandkaulen T. | Karol M./Orlov V. | 2:0 (7:61, 7:610) | details | 12.07.2023 |
Germany: Karlsruhe - Doubles - Main |
| Final | Oberleitner N./Sandkaulen T. | Kopriva V./Pervolarakis M. | 2:0 (6:1, 6:1) | details | 08.07.2023 |
| Semi-finals | Oberleitner N./Sandkaulen T. | Matuszewski P./Romios M. C. | 2:1 (6:3, 4:6, 10:4) | details | 07.07.2023 |
| Quarter-finals | Oberleitner N./Sandkaulen T. | Libietis M./Walkow S. | 2:1 (3:6, 7:65, 11:9) | details | 06.07.2023 |
| 1/8-finals | Jebavy R./Verbeek S. | Oberleitner N./Sandkaulen T. | 0:2 (3:6, 3:6) | details | 05.07.2023 |
Poland: Poznan - Doubles - Main |
| 1/8-finals | Liutarevich I./Manafov V. | Oberleitner N./Sandkaulen T. | 2:0 (6:3, 6:4) | details | 20.06.2023 |
Slovakia: Bratislava - Doubles - Main |
| Final | Behar A./Pavlasek A. | Oberleitner N./Sandkaulen T. | 2:0 (6:4, 6:4) | details | 17.06.2023 |
| Semi-finals | Sabanov I./Sabanov M. | Oberleitner N./Sandkaulen T. | 1:2 (6:3, 4:6, 4:10) | details | 16.06.2023 |
| Quarter-finals | Oberleitner N./Sandkaulen T. | Kolar Z./Zelenay I. | 2:1 (3:6, 7:5, 10:6) | details | 15.06.2023 |
| 1/8-finals | Bonadio R./Fonio G. | Oberleitner N./Sandkaulen T. | 0:2 (3:6, 4:6) | details | 14.06.2023 |
Greece: M25 Heraklion 2 - Doubles - Main |
| Final | Oberleitner N./Sandkaulen T. | Cukierman D./Uzhylovskyi V. | 2:0 (6:2, 7:65) | details | 27.11.2022 |
| Semi-finals | Oberleitner N./Sandkaulen T. | D'Agostino S./Pampanin P. | 2:0 (6:2, 6:4) | details | 26.11.2022 |
| Quarter-finals | Oberleitner N./Sandkaulen T. | Christodoulou S./Photiades P. | WO. | details | 25.11.2022 |
| 1/8-finals | Oberleitner N./Sandkaulen T. | Sakellaridis D./Sakellaridis S. | 2:0 (6:4, 6:4) | details | 24.11.2022 |