The 2021 Belarusian Open Cup was held from March 15 through March 17 in Mogilev, Belarus.
All-Around Results
| Rank | Athlete | FX | PH | SR | VT | PB | HB | AA |
| 1 | Sviataslau Dranitski Minsk |
13.600 | 12.100 | 13.250 | 14.400 | 13.200 | 11.200 | 77.750 |
| 2 | Aleh Tsiaselski Babryusk |
13.000 | 13.400 | 12.800 | 13.000 | 12.900 | 12.600 | 77.700 |
| 3 | Yahor Sharamkou Mogilev |
14.500 | 11.300 | 12.450 | 14.400 | 13.000 | 12.000 | 77.650 |
| 4 | Dzmitry Hurynovich Minsk |
13.500 | 8.700 | 12.400 | 14.500 | 11.700 | 12.100 | 72.900 |
| 5 | Aliaksei Seliazniou Mogilev |
12.600 | 10.400 | 11.000 | 13.900 | 13.200 | 10.400 | 71.500 |
| 6 | Pavel Yakubau Gomel |
11.200 | 12.100 | 11.850 | 12.500 | 12.600 | 11.100 | 71.350 |
| 7 | Ilya Vaslienka Brest |
10.200 | 10.200 | 12.000 | 13.800 | 12.800 | 11.600 | 70.600 |
| 8 | Daniil Tvardouski Minsk |
11.500 | 12.600 | 11.550 | 11.200 | 13.000 | 10.500 | 70.350 |
| 9 | Artsiom Boki Babryusk |
11.600 | 8.700 | 12.350 | 14.000 | 11.900 | 11.600 | 70.150 |
| 10 | Daniil Hryharchuk Gomel |
11.300 | 11.900 | 11.150 | 11.600 | 11.700 | 11.300 | 68.950 |
| 11 | Pavel Smirnou Babryusk |
12.900 | 10.800 | 10.700 | 12.400 | 11.200 | 10.700 | 68.700 |
| 12 | Vadzim Skobau Gomel |
11.700 | 9.900 | 8.800 | 12.400 | 11.900 | 10.400 | 65.100 |
| 13 | Viachaslau Lemieshkov Gomel |
11.300 | 9.400 | 10.500 | 12.000 | 11.100 | 10.500 | 64.800 |
| 14 | Pavel Shibko Minsk |
6.700 | 11.000 | 11.700 | 12.300 | 11.300 | 4.500 | 57.500 |
| 15 | Dzianis Sanuvonh Gomel |
12.700 | —— | —— | 13.900 | 13.700 | 13.100 | 53.400 |
| 16 | Maksim Kamarou Vitebsk |
6.400 | 8.200 | 8.100 | 9.400 | 7.200 | 9.300 | 48.600 |
| 17 | Yaraslau Krutau Minsk |
13.100 | 10.200 | —— | 13.200 | 11.400 | —— | 47.900 |
| 18 | Ivan Sanikovich Vitebsk |
8.100 | 3.200 | 8.400 | 10.800 | 8.600 | —— | 39.100 |
| 19 | Vasili Mikhalitsyn Minsk |
—— | 14.500 | —— | —— | 13.600 | —— | 28.100 |
Floor Final Results
| Rank | Athlete | Team | D | E | ND | Total |
| 1 | Yahor Sharamkou | Mogilev | 6.5 | 8.750 | 15.250 | |
| 2 | Sviataslau Dranitski | Minsk | 5.6 | 8.850 | 14.450 | |
| 3 | Dzmitry Hurynovich | Minsk | 5.3 | 8.750 | 14.050 | |
| 4 | Dzianis Sanuvonh | Gomel | 5.2 | 8.600 | 13.800 | |
| 5 | Yaraslau Krutau | Minsk | 5.5 | 8.200 | 13.700 | |
| 6 | Aliaksei Seliazniou | Mogilev | 5.4 | 8.000 | 13.400 | |
| 7 | Aleh Tsiaselski | Babryusk | 4.9 | 7.700 | 12.600 | |
| 8 | Pavel Smirnou | Babryusk | 4.8 | 6.800 | 11.600 |
Pommels Final Results
| Rank | Athlete | Team | D | E | ND | Total |
| 1 | Vasili Mikhalitsyn | Minsk | 5.5 | 9.200 | 14.700 | |
| 2 | Aleh Tsiaselski | Babryusk | 5.7 | 8.050 | 13.750 | |
| 3 | Daniil Tvardouski | Minsk | 4.7 | 8.300 | 13.000 | |
| 4 | Yahor Sharamkou | Mogilev | 5.1 | 7.900 | 13.000 | |
| 5 | Sviataslau Dranitski | Minsk | 4.7 | 8.150 | 12.850 | |
| 6 | Pavel Yakubau | Gomel | 4.6 | 7.850 | 12.450 | |
| 7 | Dzmitry Hurynovich | Minsk | 4.0 | 7.000 | 11.000 | |
| 8 | Pavel Shibko | Minsk | 3.1 | 7.600 | 10.700 |
Rings Final Results
| Rank | Athlete | Team | D | E | ND | Total |
| 1 | Sviataslau Dranitski | Minsk | 5.3 | 8.300 | 13.600 | |
| 2 | Dzmitry Hurynovich | Minsk | 5.6 | 7.800 | 13.400 | |
| 3 | Aleh Tsiaselski | Babryusk | 5.1 | 8.050 | 13.150 | |
| 4 | Artsiom Boki | Babryusk | 5.1 | 7.500 | 12.600 | |
| 5 | Yahor Sharamkou | Mogilev | 4.7 | 7.850 | 12.550 | |
| 6 | Pavel Shibko | Minsk | 4.0 | 8.150 | 12.150 | |
| 7 | Pavel Yakubau | Gomel | 3.7 | 8.400 | 12.100 | |
| 8 | Ilya Vaslienka | Brest | 5.0 | 6.600 | 11.600 |
Vault Final Results
| Rank | Athlete | Team | D | E | ND | Total | Average |
| 1 | Yahor Sharamkou | Mogilev | 5.2 | 9.400 | 14.600 | 14.350 | |
| 5.2 | 8.900 | 14.100 | |||||
| 2 | Sviataslau Dranitski | Minsk | 5.6 | 8.800 | 14.400 | 14.100 | |
| 5.2 | 8.600 | 13.800 | |||||
| 3 | Ilya Vaslienka | Brest | 4.8 | 8.900 | 13.700 | 13.600 | |
| 5.2 | 8.300 | 13.500 | |||||
| 4 | Artsiom Boki | Babryusk | 5.2 | 8.200 | 13.400 | 13.300 | |
| 4.8 | 8.400 | 13.200 | |||||
| 5 | Pavel Smirnou | Babryusk | 4.8 | 8.100 | 12.900 | 12.500 | |
| 3.2 | 8.900 | 12.100 | |||||
| 6 | Yaraslau Krutau | Minsk | 4.4 | 9.000 | 13.400 | 12.500 | |
| 3.2 | 8.400 | 11.600 | |||||
| 7 | Pavel Shibko | Minsk | 4.8 | 7.700 | 12.500 | 12.075 | |
| 2.8 | 8.850 | 11.650 |
P-Bars Final Results
| Rank | Athlete | Team | D | E | ND | Total |
| 1 | Dzianis Sanuvonh | Gomel | 5.3 | 9.000 | 14.300 | |
| 2 | Aleh Tsiaselski | Babryusk | 5.6 | 7.950 | 13.550 | |
| 3 | Yahor Sharamkou | Mogilev | 4.6 | 8.850 | 13.450 | |
| 4 | Vasili Mikhalitsyn | Minsk | 4.4 | 8.850 | 13.250 | |
| 5 | Aliaksei Seliazniou | Mogilev | 4.9 | 8.200 | 13.100 | |
| 6 | Sviataslau Dranitski | Minsk | 5.1 | 7.900 | 13.000 | |
| 7 | Ilya Vaslienka | Brest | 4.2 | 8.300 | 12.500 | |
| 8 | Daniil Tvardouski | Minsk | 4.4 | 7.850 | 12.250 |
High Bar Final Results
| Rank | Athlete | Team | D | E | ND | Total |
| 1 | Dzianis Sanuvonh | Gomel | 4.5 | 8.600 | 13.100 | |
| 2 | Aleh Tsiaselski | Babryusk | 5.3 | 7.700 | 13.000 | |
| 3 | Sviataslau Dranitski | Minsk | 5.0 | 7.850 | 12.850 | |
| 4 | Ilya Vaslienka | Brest | 4.3 | 8.000 | 12.300 | |
| 5 | Pavel Yakubau | Gomel | 4.5 | 7.700 | 12.200 | |
| 6 | Pavel Smirnou | Babryusk | 4.3 | 7.800 | 12.100 | |
| 7 | Yahor Sharamkou | Mogilev | 4.0 | 7.100 | 11.100 | |
| 8 | Dzmitry Hurynovich | Minsk | 4.2 | 5.750 | 9.950 |
Team Results
| Rank | Team | FX | PH | SR | VT | PB | HB | Total |
| 1 | MOGILEV (Artsiom Boki, Aliaksei Seliazniou, Yahor Sharamkou, Pavel Smirnou, Aleh Tsiaselski) | 53.000 | 45.900 | 48.600 | 55.300 | 51.000 | 46.900 | 300.700 |
| 2 | GOMEL (Daniil Hryharchuk, Viachaslau Lemieshkov, Dzianis Sanuvonh, Vadzim Skobau, Pavel Yakubau) | 47.000 | 43.300 | 42.300 | 50.800 | 49.900 | 46.000 | 279.300 |