400 m W / K | K | 400 | K400 | Heat 1 | 2021-09-05 | 18:50:00 | 18:57:27 | | | | | | | |
| | | | | | | | | | | | | | |
1 | 6 | 1 | 143 | KACZMAREK Natalia | 98-01-17 | POLAND | 50.72/21 | 50.72 | 50.70 | | 0.201 | PB | | 1 |
2 | 3 | 1 | 145 | KIEŁBASIŃSKA Anna | 90-06-26 | POLAND | 50.38/21 | 50.38 | 51.19 | | 0.208 | | | 2 |
3 | 4 | 1 | 66 | MCLEOD Candice | 96-11-15 | JAMAICA | 49.51/21 | 49.51 | 51.88 | | 0.224 | | | 3 |
4 | 7 | 1 | 142 | HOŁUB-KOWALIK Małgorzata | 92-10-30 | POLAND | 51.18/18 | 51.45 | 52.14 | | 0.228 | | | 4 |
5 | 9 | 1 | 63 | RUSSELL Janieve | 93-11-14 | JAMAICA | 51.17/16 | 51.77 | 52.19 | | 0.260 | | | 5 |
6 | 8 | 1 | 71 | MCGREGOR Roneisha | 97-10-09 | JAMAICA | 50.02/21 | 50.02 | 52.23 | | 0.231 | | | 6 |
7 | 5 | 1 | 123 | ŚWIĘTY-ERSETIC Justyna | 92-12-03 | POLAND | 50.41/18 | 51.04 | 52.60 | | 0.211 | | | 7 |
8 | 2 | 1 | 168 | AZEVEDO Catia | 94-03-09 | PORTUGAL | 50.59/21 | 50.59 | 52.96 | | 0.192 | | | 8 |