 Montenegro: M15 Ulcinj 3 - Doubles - Main |
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| Quarter-finals | Basso A./Ferrari G. | Kekez D./Nincevic F. | 2:0 (6:4, 7:5) | details | 16.09.2021 |
| 1/8-finals | Deckers A./Wassermann D. | Kekez D./Nincevic F. | 1:2 (7:5, 4:6, 10:12) | details | 15.09.2021 |
 Bosnia and Herzegovina: M15 Doboj - Doubles - Main |
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| Quarter-finals | Joncour R./Pavlovic L. | Kekez D./Nincevic F. | 0:2 (1:6, 2:6) | details | 15.07.2021 |
 Slovenia: M25 Velenje - Doubles - Main |
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| Final | Oberleitner N./Pichler D. | Kekez D./Nincevic F. | 2:0 (6:4, 7:61) | details | 10.07.2021 |
| Semi-finals | Kekez D./Nincevic F. | Bruna N./Lama G. | 2:0 (6:3, 6:3) | details | 09.07.2021 |
| Quarter-finals | Glinka D./Setkic A. | Kekez D./Nincevic F. | 0:2 (64:7, 0:6) | details | 08.07.2021 |
| 1/8-finals | Kekez D./Nincevic F. | Dutra Da Silva D./Juarez F. | 2:0 (6:3, 6:1) | details | 07.07.2021 |
 Croatia: M15 Sibenik - Doubles - Main |
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| 1/8-finals | Kekez D./Nincevic F. | Bocchi L./Pozzi D. | 0:2 (4:6, 4:6) | details | 20.04.2021 |
