| Lane | # | Name/Club | Nat | PB | SB | |
|---|---|---|---|---|---|---|
| 2 | 2 | Aada Aho Raision Kuula |  FIN | 55,34 | ||
| 3 | 3 | Amira Chokairy Helsingin Kisa-Veikot | FIN | 54,36 | ||
| 4 | 4 | Mette Baas Veitsiluodon Kisaveikot | FIN | 53,42 | ||
| 5 | 5 | Milja Thureson Turun Toverit | FIN | 54,21 | 55,17 | |
| 6 | 6 | Jeanine Nygård Vasa IS | FIN | 54,64 | 56,51 | |
| 7 | 7 | Frida Hämäläinen Tampereen Pyrintö | FIN | 56,31 | ||
| 8 | 8 | Veera Mattila Vammalan seudun Voima | FIN | 56,52 | 56,55 |
| Events and timetable | Results |
W 400 m National
7.6.2021 20.40 |
| Heat 1 |
Results by:
