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 |
Germany: Meerbusch - Doubles - Main |
| 1/8-finals | Sandkaulen T./Walkow S. | Luz O./Verbeek S. | 0:2 (1:6, 4:6) | details | 09.08.2023 |
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 |
Italy: Verona - Doubles - Main |
| Quarter-finals | Sandkaulen T./Walkow S. | Burruchaga R. A./Darderi L. | 0:2 (3:6, 5:7) | details | 27.07.2023 |
| 1/8-finals | Sandkaulen T./Walkow S. | Oradini G./Vincent Ruggeri S. | 2:0 (6:4, 6:2) | details | 26.07.2023 |
Netherlands: Amersfoort - Doubles - Main |
| Quarter-finals | Hermans M./Jong A. M. | Margaroli L./Sandkaulen T. | 2:1 (6:3, 1:6, 10:7) | details | 20.07.2023 |
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 |
Germany: Troisdorf - Doubles - Main |
| Quarter-finals | Guinard M./Jacq G. | Brown D./Sandkaulen T. | 2:0 (6:3, 6:3) | details | 01.06.2023 |
| 1/8-finals | Ramanathan R./Zimonjic N. | Brown D./Sandkaulen T. | 1:2 (4:6, 7:64, 9:11) | details | 31.05.2023 |
Tunisia: Tunis - Doubles - Main |
| Quarter-finals | Broom C./Sandkaulen T. | Arribage T./Sanchez L. | 0:2 (5:7, 5:7) | details | 18.05.2023 |
| 1/8-finals | Cuevas M./Cuevas P. | Broom C./Sandkaulen T. | CAN. | details | 17.05.2023 |
USA: Savannah - Doubles - Main |
| 1/8-finals | Paris J./Sandkaulen T. | Descotte M. F./Tomic B. | 1:2 (4:6, 6:2, 5:10) | details | 26.04.2023 |
USA: Tallahassee - Doubles - Main |
| 1/8-finals | Pichler D./Sandkaulen T. | Damm M./Kirkov V. | 1:2 (4:6, 7:66, 7:10) | details | 19.04.2023 |
USA: Sarasota - Doubles - Main |
| Semi-finals | Cash J./Patten H. | Brown D./Sandkaulen T. | 2:0 (6:3, 7:66) | details | 14.04.2023 |
| 1/8-finals | Kubler J./Vukic A. | Brown D./Sandkaulen T. | 0:0 RET. (2:1) | details | 13.04.2023 |
| Quarter-finals | Bhambri Y./Myneni S. | Brown D./Sandkaulen T. | 0:2 (2:6, 4:6) | details | 13.04.2023 |
USA: M25 Calabasas, CA - Doubles - Main |
| 1/8-finals | Kim A./Michelsen A. | Reynolds F./Sandkaulen T. | 2:1 (7:6, 4:6, 10:7) | details | 24.03.2023 |
USA: M25 Bakersfield, CA - Doubles - Main |
| Quarter-finals | Baker B./Bangoura S. | Reynolds F./Sandkaulen T. | 2:0 (7:66, 7:66) | details | 17.03.2023 |
| 1/8-finals | Nakagawa N./van Wyk K. | Reynolds F./Sandkaulen T. | 1:2 (2:6, 6:4, 11:13) | details | 17.03.2023 |
USA: Waco - Doubles - Main |
| Quarter-finals | Sabanov I./Sabanov M. | Cukierman D./Sandkaulen T. | 2:0 (6:2, 6:3) | details | 02.03.2023 |
| 1/8-finals | Harrison C./Mochizuki S. | Cukierman D./Sandkaulen T. | 0:2 (4:6, 3:6) | details | 01.03.2023 |
USA: Rome US - Doubles - Main |
| 1/8-finals | Michelsen A./Sigouin B. | Dougaz A./Sandkaulen T. | 2:1 (3:6, 6:4, 10:5) | details | 22.02.2023 |
Spain: Tenerife 3 - Doubles - Main |
| 1/8-finals | Frantzen C./Sandkaulen T. | Harris A./Harrison C. | 0:2 (4:6, 2:6) | details | 08.02.2023 |
Germany: Koblenz - Doubles - Main |
| Quarter-finals | Eysseric J./Molchanov D. | Frantzen C./Sandkaulen T. | 2:1 (6:3, 0:6, 10:8) | details | 02.02.2023 |
| 1/8-finals | Broady L./Brown D. | Frantzen C./Sandkaulen T. | 1:2 (3:6, 6:2, 8:10) | details | 01.02.2023 |
Germany: M25 Nussloch - Doubles - Main |
| Quarter-finals | Sandkaulen T./Schell N. | Cerny M./Recek D. | 1:2 (4:6, 6:1, 7:10) | details | 25.01.2023 |
| 1/8-finals | Sandkaulen T./Schell N. | Broska F./Opitz J. | 2:0 (6:3, 6:4) | details | 24.01.2023 |
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 |