 Australia: Australian Open - Doubles - Main |
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| Quarter-finals | Cina F./Sakamoto R. | Budkov Kjaer N./Kumstat J. | 2:0 (6:3, 6:2) | details | 24.01.2024 |
| 1/8-finals | Faurel T./Papamalamis T. | Budkov Kjaer N./Kumstat J. | 1:2 (6:4, 3:6, 5:10) | details | 23.01.2024 |
| 1/16-finals | Hazratwala R./Joyce J. | Budkov Kjaer N./Kumstat J. | 1:2 (6:1, 3:6, 8:10) | details | 22.01.2024 |
 Czech Republic: Pardubicka juniorka - Doubles - Main |
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| Semi-finals | Klimas J./Kumstat J. | Pazdera M./Kucera J. | 0:2 (4:6, 4:6) | details | 02.08.2023 |
| Quarter-finals | Kusy J./Cizek J. | Klimas J./Kumstat J. | 1:2 (3:6, 6:3, 7:10) | details | 01.08.2023 |
| 1/8-finals | Kolarik J./Olsar S. | Klimas J./Kumstat J. | 0:2 (2:6, 2:6) | details | 31.07.2023 |
| Czech Republic: M15 Prostejov - Doubles - Main |
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| Quarter-finals | Jurajda A./Siniakov D. | Kumstat J./Mrva M. | 2:1 (6:0, 2:6, 10:4) | details | 29.09.2022 |
| 1/8-finals | Kumstat J./Mrva M. | Braynin A./Tomescu D. A. | 2:1 (3:6, 6:3, 10:5) | details | 28.09.2022 |
Slovakia: M25 Trnava - Singles - Main