 USA: US Open - Doubles - Main |
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| 1/8-finals | Krueger A./Montgomery R. | Garcia J./Mutavdzic M. | 2:0 (6:4, 6:1) | details | 08.09.2021 |
| 1/16-finals | Costoulas S./Hietaranta L. | Garcia J./Mutavdzic M. | 0:2 (2:6, 4:6) | details | 06.09.2021 |
 United Kingdom: Wimbledon - Doubles - Main |
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| 1/16-finals | Shcherbinina A./Zeynalova S. | Bissett A./Mutavdzic M. | 2:0 (6:4, 6:1) | details | 07.07.2021 |
| United Kingdom: W100+H Nottingham - Doubles - Main |
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| 1/8-finals | Mutavdzic M./Udvardy P. | Broady N./Murray S. | 0:2 (4:6, 2:6) | details | 16.06.2021 |
 France: French Open - Doubles - Main |
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| 1/8-finals | Mutavdzic M./Shnaider D. | Barkova T./Falei A. | 1:2 (6:4, 4:6, 7:10) | details | 09.06.2021 |
| 1/16-finals | Mutavdzic M./Shnaider D. | Guzman D./Svendsen J. C. | 2:1 (5:7, 6:2, 10:6) | details | 07.06.2021 |
 Slovenia: W25 Otocec - Doubles - Main |
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| Quarter-finals | Falkner Z./Mutavdzic M. | Di Sarra F./Rosatello C. | 1:2 (6:3, 64:7, 8:10) | details | 27.05.2021 |
| 1/8-finals | Kolar N./Zarycka A. | Falkner Z./Mutavdzic M. | 1:2 (6:3, 2:6, 6:10) | details | 26.05.2021 |
 Turkey: W15 Antalya 18 - Doubles - Main |
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| Final | Mutavdzic M./Ruzic A. | Bilardo F./Dmitruk K. | 1:2 (3:6, 6:0, 7:10) | details | 08.05.2021 |
| Semi-finals | Turkmen D./Uslu O. | Mutavdzic M./Ruzic A. | 0:2 (3:6, 4:6) | details | 07.05.2021 |
| Quarter-finals | Bartone K./Gadecki O. | Mutavdzic M./Ruzic A. | WO. | details | 06.05.2021 |
Spain: W25+H Tossa de Mar - Singles - Main
South Africa: W25 Pretoria - Singles - Main
Brazil: W25 Florianopolis 2 - Singles - Main
Israel: W25 Kiryat Motzkin - Singles - Main
Tunisia: W15 Monastir 31 - Singles - Main