The women's 400 metres at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 11, 12, and 13 July. [1] [2] [3]
The women's 400 metres at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 11, 12, and 13 July. [1] [2] [3]
| Gold | Ashley Spencer  United States |
| Silver | Kadecia Baird  Guyana |
| Bronze | Erika Rucker United States |
Prior to the competition [update] , the existing world junior and championship records were as follows.
| World Junior Record |  Grit Breuer (GER) | 49.42 | Tokyo, Japan | 27 August 1991 |
| Championship Record |  Fatima Yusuf (NGR) | 50.62 | Plovdiv, Bulgaria | 10 August 1990 |
| World Junior Leading | Ashley Spencer (USA) | 51.02 | Madison, United States | 13 May 2012 |
| Broken records during the 2012 World Junior Championships in Athletics | ||||
|---|---|---|---|---|
| Championship Record World Junior Leading | Ashley Spencer (USA) | 50.50 | Barcelona, Spain | 13 July 2012 |
Qualification: first 3 of each heat (Q) plus the 6 fastest times (q) qualified
Qualification: first 2 of each heat (Q) plus the 2 fastest times (q) qualified
| Rank | Heat | Lane | Name | Nationality | Time | Note |
|---|---|---|---|---|---|---|
| 1 | 1 | 6 | Erika Rucker |  United States | 52.05 | Q, PB |
| 2 | 3 | 5 | Ashley Spencer | United States | 52.24 | Q |
| 3 | 1 | 4 | Kadecia Baird | Guyana | 52.40 | Q |
| 4 | 1 | 7 | Justine Palframan |  South Africa | 52.65 | q |
| 5 | 1 | 5 | Chrisann Gordon |  Jamaica | 52.70 | q |
| 6 | 3 | 9 | Olivia James | Jamaica | 52.71 | Q, SB |
| 7 | 2 | 4 | Shaunae Miller |  Bahamas | 52.75 | Q |
| 8 | 2 | 6 | Bianca Răzor |  Romania | 52.87 | Q |
| 9 | 3 | 4 | Rashan Brown | Bahamas | 52.88 | |
| 10 | 2 | 7 | Ekaterina Renzhina |  Russia | 52.97 | |
| 11 | 3 | 7 | Patrycja Wyciszkiewicz |  Poland | 53.04 | |
| 12 | 1 | 9 | Adelina Pastor | Romania | 53.28 | SB |
| 13 | 2 | 5 | Morgan Mitchell |  Australia | 53.88 | PB |
| 14 | 1 | 8 | Abbey de la Motte | Australia | 53.90 | PB |
| 15 | 3 | 2 | Ella Räsänen |  Finland | 54.40 | |
| 16 | 1 | 2 | Grace Claxton |  Puerto Rico | 54.42 | NJ |
| 17 | 2 | 9 | Maike Schachtschneider | Germany | 54.49 | |
| 18 | 1 | 3 | Joanna Mills |  Ireland | 54.52 | |
| 19 | 3 | 8 | Jie Chen |  China | 54.67 | |
| 20 | 2 | 8 | Bianka Kéri |  Hungary | 54.68 | |
| 21 | 2 | 2 | Flavia Battaglia |  Italy | 54.82 | |
| 22 | 3 | 6 | Alina Galitskaya | Russia | 54.98 | |
| 23 | 2 | 3 | Viktoriya Tkachuk |  Ukraine | 55.02 | |
| 24 | 3 | 3 | Simone Werner |  Switzerland | 55.85 |
| Rank | Lane | Name | Nationality | Time | Note |
|---|---|---|---|---|---|
 | 6 | Ashley Spencer | United States | 50.50 | CR |
 | 4 | Kadecia Baird | Guyana | 51.04 | AJ |
 | 5 | Erika Rucker | United States | 51.10 | PB |
| 4 | 7 | Shaunae Miller | Bahamas | 51.78 | |
| 5 | 3 | Justine Palframan | South Africa | 51.87 | NJ |
| 6 | 8 | Bianca Răzor | Romania | 52.20 | SB |
| 7 | 2 | Chrisann Gordon | Jamaica | 52.31 | SB |
| 8 | 9 | Olivia James | Jamaica | 52.68 | SB |
According to an unofficial count, 40 athletes from 30 countries participated in the event.
Australia (2)
Austria (2) Bahamas (2)
Botswana (1)
British Virgin Islands (1)
Canada (1) China (2)
Colombia (1)
DR Congo (1)
Fiji (1) Finland (1) Germany (1)
Grenada (1) Guyana (1) Hungary (1) Ireland (1) Italy (1) Jamaica (2)
Kazakhstan (1)
Latvia (1)
Mexico (1)
Micronesia (1) Poland (1)
Portugal (1) Puerto Rico (1) Romania (2) Russia (2) South Africa (2)
Switzerland (1) Ukraine (2) United States (2)The men's 100 metres at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 10 and 11 July.
The men's 200 metres at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 12 and 13 July.
The men's 400 metres at the 2012 World Junior Championships in Athletics will be held at the Estadi Olímpic Lluís Companys on 10, 11, and 12 July.
The men's 800 metres at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 13, 14, and 15 July.
The women's 800 metres at the 2012 World Junior Championships in Athletics will be held at the Estadi Olímpic Lluís Companys on 10, 11, and 12 July.
The women's 200 metres at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 12 and 13 July.
The women's 100 metres at the 2012 World Junior Championships in Athletics will be held at the Estadi Olímpic Lluís Companys on 10 and 11 July.
The men's 1500 metres at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 10 and 12 July.
The women's 1500 metres at the 2012 World Junior Championships in Athletics will be held at the Estadi Olímpic Lluís Companys on 13 and 15 July.
The men's 110 metres hurdles at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 10–12 July.
The men's 400 metres hurdles at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 11–13 July.
The men's 4 × 100 metres relay at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 13 and 14 July.
The men's 4 × 400 metres relay at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 14 and 15 July.
The men's 3000 metres steeplechase at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 13 and 15 July.
The men's discus throw at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 10 and 12 July.
The women's 100 metres hurdles at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 13, 14, and 15 July.
The women's 400 metres hurdles at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 12, 13, and 14 July.
The women's 3000 metres steeplechase at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 10 and 12 July.
The women's 4 × 100 metres relay at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 13 and 14 July.
The women's 4 × 400 metres relay at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 14 and 15 July 2012.