 Burundi: W35 Bujumbura - Doubles - Main |
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| 1/8-finals | Kalluri L./Kowalczyk N. | Atturu S./Bista A. | 0:2 (4:6, 1:6) | details | 03.04.2024 |
 Turkey: W15 Antalya 3 - Doubles - Main |
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| 1/8-finals | Jaeger E./Kowalczyk N. | Herea C. A./Suvirdjonkova D. | 0:2 (0:6, 0:6) | details | 27.02.2024 |
 Kazakhstan: W25 Astana - Doubles - Main |
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| 1/8-finals | Arakawa H./Sema E. | Kalluri L./Kowalczyk N. | 2:0 (6:1, 6:0) | details | 01.08.2023 |
 Dominican Republic: W25 Punta Cana 2 - Doubles - Main |
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| 1/8-finals | Kowalczyk N./Rajmohan N. | Flores V./Torres Murcia M. C. | 0:2 (1:6, 3:6) | details | 11.07.2023 |
 Poland: W15 Gdansk - Doubles - Main |
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| 1/8-finals | Bajorek M./Czapulak E. | Fehr N./Kowalczyk N. | 2:0 (7:5, 6:2) | details | 20.06.2023 |
 Serbia: W25 Kursumlijska Banja - Doubles - Main |
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| 1/8-finals | Kowalczyk N./William T. | Babel O./Di Girolami T. | 0:2 (3:6, 4:6) | details | 16.05.2023 |
| Burundi: W25 Bujumbura 2 - Doubles - Main |
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| Quarter-finals | Kalluri L./Kowalczyk N. | Nahimana S./Visscher S. J. | 0:2 (0:6, 2:6) | details | 13.04.2023 |
| 1/8-finals | Kalluri L./Kowalczyk N. | Vadyala M./Yadav R. | 2:1 (5:7, 6:3, 10:7) | details | 11.04.2023 |
| Burundi: W25 Bujumbura - Doubles - Main |
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| 1/8-finals | Nweke D./Stevic H. | Kalluri L./Kowalczyk N. | 2:1 (6:1, 3:6, 10:6) | details | 04.04.2023 |
 Greece: W15 Heraklion 2 - Doubles - Main |
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| 1/8-finals | Kowalczyk N./Olszewska A. | Christofi E./Pavlou D. | 0:2 (1:6, 0:6) | details | 21.03.2023 |
 Kenya: W15 Nairobi - Doubles - Main |
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| Quarter-finals | Adegoke S./Kowalczyk N. | Salvi L./Seibold E. | 0:2 (0:6, 3:6) | details | 18.11.2022 |
| 1/8-finals | Bitton A./Gleixner A. | Adegoke S./Kowalczyk N. | WO. | details | 17.11.2022 |
 Israel: W25 Jerusalem - Doubles - Main |
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| 1/8-finals | Kowalczyk N./Nkili O. J. | Kovaleva A./Pavlova K. | 0:2 (0:6, 0:6) | details | 01.11.2022 |
 Tunisia: W15 Monastir 46 - Doubles - Main |
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| 1/8-finals | Mansouri Y./Simone A. | Kotylak M./Kowalczyk N. | 2:0 (6:0, 6:0) | details | 30.11.2021 |