400m Nat. Dames + Sco, Heat:3 of 3 ; Official result since 18:25
| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
| 1 | 4 | 9103 | NEKHUBUI SHIRLEY | 51.80 | RSA | Sen | 52.79 | ||
| 2 | 5 | 9117 | THURESON MILJA | 53.12 | FIN | Sen | 53.39 | ||
| 3 | 2 | 9029 | TELFORD ALEXANDRA | 54.24 | CAN | Sen | 53.79 | ||
| 4 | 6 | 9092 | GAYE FATOU | 53.65 | SEN | Sen | 53.94 | ||
| 5 | 3 | 9086 | NYGARD JEANINE | 54.14 | FIN | Sen | 54.36 | ||
| 6 | 8 | 2062 | VAN DER MEULEN CLOE | 54.58 | BEL | Sen | 54.54 | ||
| 7 | 1 | 9049 | SINISTERRA LEYDY LORENA | 53.75 | COL | Mas | 55.16 | ||
| 8 | 7 | 9061 | BLACKBURN ANGELINE | 52.71 | AUS | Sen | 55.19 |