 Israel: W25 Kiryat Motzkin - Doubles - Main |
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| Semi-finals | Bondarenko M./Monnet C. | Duerst J./Stadler N. | 2:0 (6:2, 7:5) | details | 28.10.2021 |
| Quarter-finals | Duerst J./Stadler N. | Noskova L./Ostlund F. | WO. | details | 27.10.2021 |
| 1/8-finals | Duerst J./Stadler N. | Dabah A./Nadel N. | 2:0 (6:2, 6:4) | details | 26.10.2021 |
| Israel: W25 Netanya - Doubles - Main |
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| Quarter-finals | Duerst J./Stadler N. | Bondarenko M./Monnet C. | 0:2 (3:6, 4:6) | details | 21.10.2021 |
| 1/8-finals | Duerst J./Stadler N. | Failla J./Parazinskaite A. | 2:1 (6:3, 5:7, 10:6) | details | 19.10.2021 |
 South Africa: W25 Pretoria - Doubles - Main |
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| Final | Anshba A./Mandlik E. | Duerst J./Stadler N. | 2:0 (6:2, 6:2) | details | 02.10.2021 |
| Semi-finals | Duerst J./Stadler N. | Lamens S./Stevens L. | 2:1 (4:6, 6:0, 11:9) | details | 02.10.2021 |
| Quarter-finals | Duerst J./Stadler N. | Vedder E./Visscher S. J. | 2:0 (6:4, 7:65) | details | 30.09.2021 |
| 1/8-finals | Imanishi M./Ogata H. | Duerst J./Stadler N. | 0:2 (1:6, 3:6) | details | 28.09.2021 |
| South Africa: W25 Johannesburg / Ellispark - Doubles - Main |
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| Final | Vedder E./Visscher S. J. | Duerst J./Stadler N. | 1:2 (7:65, 5:7, 9:11) | details | 25.09.2021 |
| Semi-finals | Duerst J./Stadler N. | Bondarenko M./Poplavska A. | 2:0 (6:1, 6:4) | details | 24.09.2021 |
| Quarter-finals | Muramatsu C./Zuger J. | Duerst J./Stadler N. | 1:2 (66:7, 6:3, 7:10) | details | 23.09.2021 |
| 1/8-finals | Duerst J./Stadler N. | Cabaj Awad J./Samir S. | 2:1 (6:0, 3:6, 10:6) | details | 21.09.2021 |
 Switzerland: W60 Collonge-Bellerive - Doubles - Main |
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| 1/8-finals | Duerst J./Stadler N. | Bavisetti S./Gabueva A. | 1:2 (2:6, 6:3, 8:10) | details | 31.08.2021 |
| Israel: W15 Jerusalem - Doubles - Main |
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| Final | Appleton E./Barnett A. | Duerst J./Stadler N. | 2:1 (6:4, 2:6, 11:9) | details | 14.05.2021 |
| Semi-finals | Baszak W./Ryser V. | Duerst J./Stadler N. | 1:2 (7:5, 2:6, 3:10) | details | 13.05.2021 |
| Quarter-finals | Kanev K./Welker E. | Duerst J./Stadler N. | 0:2 (3:6, 2:6) | details | 12.05.2021 |
| 1/8-finals | Parentini G./Schieroni G. | Duerst J./Stadler N. | 0:2 (3:6, 0:6) | details | 11.05.2021 |
| Israel: W15 Ramat Hasharon - Doubles - Main |
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| Final | Glushko L./Kimchi S. | Duerst J./Stadler N. | 1:2 (6:1, 4:6, 6:10) | details | 08.05.2021 |
| Semi-finals | Duerst J./Stadler N. | Baszak W./Ryser V. | 2:0 (6:2, 7:5) | details | 07.05.2021 |
| Quarter-finals | Bereznyak S./Leon S. | Duerst J./Stadler N. | 1:2 (6:3, 1:6, 5:10) | details | 06.05.2021 |
| 1/8-finals | Koldobski K./Younes K. | Duerst J./Stadler N. | 0:2 (0:6, 3:6) | details | 04.05.2021 |
 Greece: W15 Heraklion 7 - Doubles - Main |
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| 1/8-finals | Duerst J./Stadler N. | Duca G./Kimmelmann J. | 0:2 (5:7, 5:7) | details | 27.10.2020 |
 Tunisia: W15 Monastir 9 - Doubles - Main |
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| Quarter-finals | Duerst J./Stadler N. | Gimbrere J./Morandais A. | 1:2 (67:7, 7:65, 9:11) | details | 05.03.2020 |
