| Event: | Women's 400 metres hurdles |
The women's 400 metres hurdles event at the 1986 Commonwealth Games was held on 27 and 28 July at the Meadowbank Stadium in Edinburgh.[1]
The winning margin was 1.61 seconds which as of 2024 remains the only time the women's 400 metres hurdles was won by more than 1.4 seconds at these games.
| width=200 bgcolor=gold | Gold | width=200 bgcolor=silver | Silver | width=200 bgcolor=CC9966 | Bronze |
| Debbie Flintoff | Donalda Duprey | Jenny Laurendet |
Qualification: First 3 of each heat (Q) and the next 2 fastest (q) qualified for the final.[2]
| Rank | Heat | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|
| 1 | 1 | 57.38 | Q | |||
| 2 | 1 | 58.06 | Q | |||
| 3 | 2 | 58.25 | Q | |||
| 4 | 2 | 58.60 | Q | |||
| 5 | 1 | 58.65 | Q | |||
| 6 | 1 | 58.83 | q | |||
| 7 | 2 | 58.95 | Q | |||
| 8 | 2 | 59.36 | q | |||
| 9 | 1 | |||||
| 10 | 2 | |||||
| 11 | 2 |
| Rank | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|
| 4 | 54.94 | GR | ||||
| 2 | 56.55 | |||||
| 5 | 56.57 | |||||
| 4 | 6 | 57.49 | ||||
| 5 | 3 | 57.59 | ||||
| 6 | 7 | 58.01 | ||||
| 7 | 1 | 58.28 | ||||
| 8 | 8 | 58.31 |