 Hungary: Budapest - Doubles - Main |
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| Final | Gorgodze E./Kalashnikova O. | Piter K./Zimmermann K. | 2:1 (1:6, 6:4, 10:6) | details | 17.07.2022 |
| Semi-finals | Piter K./Zimmermann K. | Babos T./Stollar F. | 2:1 (6:3, 3:6, 10:6) | details | 16.07.2022 |
| Quarter-finals | Piter K./Zimmermann K. | Neel I./Voracova R. | 2:1 (6:4, 4:6, 10:7) | details | 14.07.2022 |
| 1/8-finals | Piter K./Zimmermann K. | Carle M. L./Cocciaretto E. | 2:1 (65:7, 6:4, 10:5) | details | 13.07.2022 |
 Germany: Bad Homburg - Doubles - Main |
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| 1/8-finals | Hozumi E./Ninomiya M. | Piter K./Zimmermann K. | 2:1 (63:7, 6:4, 13:11) | details | 21.06.2022 |
 Netherlands: Hertogenbosch - Doubles - Main |
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| Quarter-finals | Kudermetova V./Mertens E. | Piter K./Zimmermann K. | 2:0 (6:1, 6:1) | details | 10.06.2022 |
| 1/8-finals | Piter K./Zimmermann K. | Mihalikova T./Minnen G. | 2:0 (7:5, 6:2) | details | 09.06.2022 |
 France: Strasbourg - Doubles - Main |
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| Quarter-finals | Piter K./Zimmermann K. | Christian K./Marozava L. | 1:2 (6:2, 3:6, 8:10) | details | 18.05.2022 |
| 1/8-finals | Xu Y./Yang Z. | Piter K./Zimmermann K. | 1:2 (3:6, 6:3, 7:10) | details | 17.05.2022 |
| Germany: Karlsruhe - Doubles - Main |
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| Semi-finals | Piter K./Zimmermann K. | Sherif M./Udvardy P. | 0:2 (3:6, 2:6) | details | 14.05.2022 |
| Quarter-finals | Piter K./Zimmermann K. | Anshba A./Timofeeva M. | 2:0 (6:1, 6:2) | details | 11.05.2022 |
 Spain: Madrid - Doubles - Main |
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| 1/16-finals | Piter K./Zimmermann K. | Melichar-Martinez N./Perez E. | 0:2 (2:6, 67:7) | details | 01.05.2022 |
 Turkey: Istanbul - Doubles - Main |
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| 1/8-finals | Lohoff J./Murray S. | Piter K./Zimmermann K. | 2:1 (7:5, 2:6, 10:3) | details | 20.04.2022 |
 Portugal: W80 Oeiras - Doubles - Main |
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| Final | Piter K./Zimmermann K. | Gerlach K./Stevanovic N. | 2:0 (6:1, 6:1) | details | 09.04.2022 |
| Semi-finals | Piter K./Zimmermann K. | Lapko V./Lys E. | 2:0 (6:3, 6:4) | details | 08.04.2022 |
| Quarter-finals | Piter K./Zimmermann K. | Mikulskyte J./Siskova A. | 2:1 (5:7, 6:1, 10:4) | details | 07.04.2022 |
| 1/8-finals | Piter K./Zimmermann K. | Jorge F./Jorge M. | 2:1 (6:4, 65:7, 10:7) | details | 05.04.2022 |
| Spain: Marbella - Doubles - Main |
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| Quarter-finals | Piter K./Zimmermann K. | Bara I./Gorgodze E. | 0:2 (3:6, 2:6) | details | 30.03.2022 |
 Czech Republic: Ostrava - Doubles - Main |
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| 1/8-finals | Piter K./Zimmermann K. | Hozumi E./Ninomiya M. | 1:2 (3:6, 6:3, 6:10) | details | 21.09.2021 |
