The women's 400 metres event at the 2014 World Junior Championships in Athletics was held in Eugene, Oregon, USA, at Hayward Field on 23, 24 and 25 July.
Medalists
Records
Results
Final
25 July
Start time: 20:29 Temperature: 25 °C Humidity: 41 %
Semifinals
24 July
First 2 in each heat (Q) and the next 2 fastest (q) advance to the Final
Summary
Details
First 2 in each heat (Q) and the next 2 fastest (q) advance to the Final
Semifinal 1
25 July
Start time: 19:03 Temperature: 23 °C Humidity: 44%
Semifinal 2
25 July
Start time: 19:11 Temperature: 22 °C Humidity: 46%
Semifinal 3
25 July
Start time: 19:17 Temperature: 22 °C Humidity: 46%
Heats
23 July
First 4 in each heat (Q) and the next 4 fastest (q) advance to the Semi-Finals
Summary
Details
First 4 in each heat (Q) and the next 4 fastest (q) advance to the Semi-Finals
Heat 1
25 July
Start time: 11:34 Temperature: 16 °C Humidity: 82%
Note: IAAF Rule 163.3(a) - Lane infringement
Heat 2
25 July
Start time: 11:40 Temperature: 16 °C Humidity: 88%
Note: IAAF Rule 163.3(a) - Lane infringement
Heat 3
25 July
Start time: 11:47 Temperature: 16 °C Humidity: 88%
Heat 4
25 July
Start time: 11:52 Temperature: 16 °C Humidity: 88%
Note: IAAF Rule 163.3(a) - Lane infringement
Heat 5
25 July
Start time: 11:57 Temperature: 16 °C Humidity: 88%
Participation
According to an unofficial count, 35 athletes from 29 countries participated in the event.