The 2021 Koper Challenge Cup was held from September 2 through September 5 in Koper, Slovenia.
Vault Final Results
| Rank | Athlete | Nation | D | E | ND | Total | Average |
| 1 | Tjasa Kysselef | Slovenia | 5.0 | 8.850 | 13.850 | 13.825 | |
| 4.8 | 9.000 | 13.800 | |||||
| 2 | Csenge Bacskay | Hungary | 5.0 | 8.900 | 13.900 | 13.725 | |
| 4.8 | 8.750 | 13.550 | |||||
| 3 | Yana Fedorova | Ukraine | 4.6 | 9.050 | 13.650 | 13.300 | |
| 4.0 | 8.950 | 12.950 | |||||
| 4 | Dorina Böczögö | Hungary | 4.6 | 8.950 | 13.550 | 13.250 | |
| 4.2 | 8.750 | 12.950 | |||||
| 5 | Tijana Korent | Croatia | 4.6 | 8.600 | 13.200 | 13.225 | |
| 4.6 | 8.650 | 13.250 | |||||
| 6 | Yelizaveta Hubareva | Ukraine | 4.6 | 8.650 | 13.250 | 12.775 | |
| 4.0 | 8.300 | 12.300 | |||||
| 7 | Rachael Riley | Canada | 5.0 | 8.700 | 13.700 | 12.675 | |
| 4.2 | 7.450 | 11.650 | |||||
| 8 | Daniela Halova | Czech Republic | 4.0 | 8.500 | 12.500 | 12.225 | |
| 3.7 | 8.250 | 11.950 |
Bars Final Results
| Rank | Athlete | Nation | D | E | ND | Total |
| 1 | Barbora Mokosova | Slovakia | 5.5 | 8.150 | 13.650 | |
| 2 | Zoja Szekely | Hungary | 5.5 | 7.850 | 13.350 | |
| 3 | Lucija Hribar | Slovenia | 4.8 | 8.100 | 12.900 | |
| 4 | Yana Fedorova | Ukraine | 5.2 | 7.650 | 12.850 | |
| 5 | Aleksandra Rajcic | Serbia | 4.8 | 7.250 | 12.050 | |
| 6 | Yelizaveta Hubareva | Ukraine | 5.4 | 6.550 | 11.950 | |
| 7 | Antonia Duta | Romania | 5.0 | 6.850 | 11.850 | |
| 8 | Emma Slevin | Ireland | 5.0 | 6.550 | -0.3 | 11.250 |
Beam Final Results
| Rank | Athlete | Nation | D | E | ND | Total |
| 1 | Cassie Lee | Canada | 5.2 | 7.850 | 13.050 | |
| 2 | Ana Derek | Croatia | 5.0 | 7.800 | 12.800 | |
| 3 | Zoja Szekely | Hungary | 4.5 | 7.700 | 12.200 | |
| 4 | Emma Slevin | Ireland | 5.0 | 6.700 | 11.700 | |
| 5 | Lucija Hribar | Slovenia | 4.9 | 6.750 | 11.650 | |
| 6 | Antonia Duta | Romania | 4.9 | 6.650 | 11.550 | |
| 7 | Rachael Riley | Canada | 4.8 | 5.950 | 10.750 | |
| 8 | Marlies Männersdorfer | Austria | 3.9 | 6.500 | 10.400 |
Floor Final Results
| Rank | Athlete | Nation | D | E | ND | Total |
| 1 | Claudia Fragapane | Great Britain | 5.0 | 7.900 | 12.900 | |
| 2 | Ana Derek | Croatia | 5.0 | 7.850 | -0.1 | 12.750 |
| 3 | Dorina Böczögö | Hungary | 4.7 | 8.000 | 12.700 | |
| 4 | Cassie Lee | Canada | 5.0 | 7.500 | 12.500 | |
| 5 | Lucija Hribar | Slovenia | 4.3 | 8.000 | 12.300 | |
| 6 | Aida Bauyrzhanova | Kazakhstan | 4.7 | 7.400 | 12.100 | |
| 7 | Yana Fedorova | Ukraine | 4.4 | 7.650 | 12.050 | |
| 8 | Aiyu Zhu | Germany | 4.2 | 7.250 | -0.1 | 11.350 |
Vault Qualification Results
| Rank | Athlete | Nation | D | E | ND | Total | Average |
| 1 | Csenge Bacskay | Hungary | 5.0 | 8.850 | 13.850 | 13.675 | |
| 4.8 | 8.700 | 13.500 | |||||
| 2 | Tjasa Kysselef | Slovenia | 4.6 | 9.050 | 13.650 | 13.625 | |
| 4.8 | 8.800 | 13.600 | |||||
| 3 | Tijana Korent | Croatia | 4.6 | 8.650 | 13.250 | 13.300 | |
| 4.6 | 8.750 | 13.350 | |||||
| 4 | Yana Fedorova | Ukraine | 4.6 | 8.900 | 13.500 | 13.275 | |
| 4.0 | 9.050 | 13.050 | |||||
| 5 | Dorina Böczögö | Hungary | 4.6 | 8.850 | 13.450 | 13.125 | |
| 4.2 | 8.600 | 12.800 | |||||
| 6 | Yelizaveta Hubareva | Ukraine | 4.6 | 8.550 | 13.150 | 12.800 | |
| 4.0 | 8.450 | 12.450 | |||||
| 7 | Rachael Riley | Canada | 5.0 | 8.250 | -0.1 | 13.150 | 12.575 |
| 4.2 | 7.900 | -0.1 | 12.000 | ||||
| 8 | Daniela Halova | Czech Republic | 4.0 | 8.450 | 12.450 | 12.200 | |
| 3.7 | 8.250 | 11.950 |
Bars Qualification Results
| Rank | Athlete | Nation | D | E | ND | Total |
| 1 | Barbora Mokosova | Slovakia | 5.5 | 8.000 | 13.500 | |
| 2 | Zoja Szekely | Hungary | 5.4 | 7.500 | 12.900 | |
| 3 | Lucija Hribar | Slovenia | 4.8 | 7.950 | 12.750 | |
| 4 | Antonia Duta | Romania | 5.0 | 7.750 | 12.750 | |
| 5 | Yana Fedorova | Ukraine | 5.2 | 6.950 | 12.150 | |
| 6 | Emma Slevin | Ireland | 5.1 | 6.900 | 12.000 | |
| 7 | Aleksandra Rajcic | Serbia | 4.8 | 7.100 | 11.900 | |
| 8 | Yelizaveta Hubareva | Ukraine | 5.7 | 6.150 | 11.850 | |
| 9 | Julia Birck | Germany | 4.9 | 6.850 | 11.750 | |
| 10 | Marlies Männersdorfer | Austria | 4.8 | 6.650 | 11.450 | |
| 11 | Lucie Zahradnickova | Czech Republic | 3.4 | 7.400 | 10.800 | |
| 12 | Daniela Halova | Czech Republic | 4.0 | 6.550 | 10.550 | |
| 13 | Csenge Bacskay | Hungary | 5.1 | 5.400 | 10.500 | |
| 14 | Kaja Skalska | Poland | 4.0 | 6.350 | 10.350 | |
| 15 | Lara Crnjac | Slovenia | 3.5 | 6.600 | 10.100 | |
| 16 | Ella Borg | Malta | 2.1 | 7.400 | 9.500 | |
| 17 | Milana Minakovskaya | Azerbaijan | 4.0 | 5.400 | 9.400 | |
| 18 | Kate Molloy | Ireland | 3.2 | 4.600 | 7.800 |
Beam Qualification Results
| Rank | Athlete | Nation | D | E | ND | Total |
| 1 | Cassie Lee | Canada | 5.5 | 7.800 | 13.300 | |
| 2 | Lucija Hribar | Slovenia | 4.9 | 8.000 | 12.900 | |
| 3 | Emma Slevin | Ireland | 5.2 | 7.550 | 12.750 | |
| 4 | Ana Derek | Croatia | 4.9 | 7.750 | 12.650 | |
| 5 | Zoja Szekely | Hungary | 4.8 | 7.750 | 12.550 | |
| 6 | Antonia Duta | Romania | 4.9 | 7.550 | 12.450 | |
| 7 | Marlies Männersdorfer | Austria | 4.3 | 8.100 | 12.400 | |
| 8 | Rachael Riley | Canada | 4.8 | 7.500 | 12.300 | |
| 9 | Aida Bauyrzhanova | Kazakhstan | 5.0 | 7.250 | 12.250 | |
| 10 | Hanna Szujo | Hungary | 4.6 | 7.600 | 12.200 | |
| 11 | Yelizaveta Hubareva | Ukraine | 5.1 | 7.000 | 12.100 | |
| 12 | Yana Fedorova | Ukraine | 4.9 | 7.050 | 11.950 | |
| 13 | Gaja Zabnikar | Slovenia | 4.7 | 7.200 | 11.900 | |
| 14 | Aiyu Zhu | Germany | 4.9 | 7.000 | 11.900 | |
| 15 | Blathnaid Higgins | Ireland | 4.8 | 7.050 | 11.850 | |
| 16 | Barbora Mokosova | Slovakia | 4.7 | 7.100 | 11.800 | |
| 17 | Charlie Chan Cheuk Lam | Hong Kong | 4.8 | 6.500 | 11.300 | |
| 18 | Ella Borg | Malta | 4.4 | 6.650 | 11.050 | |
| 19 | Tina Zelcic | Croatia | 4.8 | 6.250 | 11.050 | |
| 20 | Claudia Fragapane | Great Britain | 4.1 | 6.950 | 11.050 | |
| 21 | Angel Wong Hiu Ying | Hong Kong | 5.1 | 5.950 | 11.050 | |
| 22 | Kaja Skalska | Poland | 4.7 | 6.100 | 10.800 | |
| 23 | Lucie Zahradnickova | Czech Republic | 4.2 | 6.550 | 10.750 | |
| 24 | Brygida Urbanska | Poland | 4.9 | 5.650 | 10.550 | |
| 25 | Milana Minakovskaya | Azerbaijan | 4.6 | 5.950 | 10.550 | |
| 26 | Julia Birck | Germany | 4.9 | 4.100 | 9.000 |
Floor Qualification Results
| Rank | Athlete | Nation | D | E | ND | Total |
| 1 | Ana Derek | Croatia | 4.9 | 7.950 | 12.850 | |
| 2 | Dorina Böczögö | Hungary | 4.6 | 8.000 | 12.600 | |
| 3 | Aida Bauyrzhanova | Kazakhstan | 4.7 | 7.800 | 12.500 | |
| 4 | Claudia Fragapane | Great Britain | 5.1 | 7.400 | 12.500 | |
| 5 | Cassie Lee | Canada | 5.1 | 7.300 | 12.400 | |
| 6 | Aiyu Zhu | Germany | 4.6 | 7.700 | -0.1 | 12.200 |
| 7 | Yana Fedorova | Ukraine | 4.5 | 7.600 | 12.100 | |
| 8 | Lucija Hribar | Slovenia | 4.3 | 7.750 | 12.050 | |
| 9 | Brygida Urbanska | Poland | 4.4 | 7.450 | 11.850 | |
| 10 | Blathnaid Higgins | Ireland | 4.5 | 7.300 | 11.800 | |
| 11 | Ella Borg | Malta | 4.5 | 7.250 | 11.750 | |
| 12 | Hanna Szujo | Hungary | 4.9 | 6.700 | 11.600 | |
| 13 | Antonia Duta | Romania | 5.2 | 6.200 | 11.400 | |
| 14 | Charlie Chan Cheuk Lam | Hong Kong | 4.2 | 7.200 | -0.2 | 11.200 |
| 15 | Rachael Riley | Canada | 4.7 | 7.000 | -0.6 | 11.100 |
| 16 | Marlies Männersdorfer | Austria | 4.3 | 6.600 | 10.900 | |
| 17 | Daniela Halova | Czech Republic | 3.8 | 6.400 | -0.3 | 9.900 |
| 18 | Yelizaveta Hubareva | Ukraine | 4.8 | 5.000 | -0.4 | 9.400 |
Tjasa Kysselef! best results so far!
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