| # | Athlete | Time |
|---|---|---|
| 1 | Emily NewnhamGreat Britain | 50.32 |
| 2 | Lina NielsenGreat Britain | 50.61 |
| 3 | Nicole YearginGreat Britain | 50.98 |
| 4 | Poppy MalikGreat Britain | 52.07 |
| 5 | Rebecca GrieveGreat Britain | 52.46 |
| 6 | Natasha Harrison [es]Great Britain | 52.58 |
| 7 | Alicia RegisGreat Britain | 52.60 |
Times in Sydney time (AEDT). Results: Wikipedia, “2026 London Athletics Meet”, CC BY-SA 4.0. Unofficial, updated after the event.
