Athletics at the 2018 Commonwealth Games – Women's 400 metres

The women's 400 metres at the 2018 Commonwealth Games, as part of the athletics programme, took place in the Carrara Stadium between 9 and 11 April 2018.

Records
Prior to this competition, the existing world and Games records were as follows:

Schedule
The schedule was as follows: All times are Australian Eastern Standard Time (UTC+10)

First round
The first round consisted of five heats. The four fastest competitors per heat (plus four fastest losers) advanced to the semifinals.


 * Heat 1


 * Heat 2


 * Heat 3


 * Heat 4


 * Heat 5

Semifinals
Three semi-finals were held. The two fastest competitors per semi (plus two fastest losers) advanced to the final.


 * Semifinal 1


 * Semifinal 2


 * Semifinal 3

Final
The medals were determined in the final.