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Athletics at the 2012 London Summer Games:

Women's 400 metres Semi-Finals

Athletics at the 2012 Summer Games: Previous Summer Games

Events:
Phases:

Host City: London, Great Britain
Venue(s): Olympic Stadium, Olympic Park, Stratford, London
Date Started: August 4, 2012
Date Finished: August 4, 2012
Format: Top two in each heat and next two fastest advanced to the final.

Gold: USA Sanya Richards-Ross
Silver: GBR Christine Ohuruogu
Bronze: USA DeeDee Trotter

Semi-Finals Heat One

Rank Athlete Age Team NOC T(A) RT
1 Sanya Richards-Ross 27 United States USA 50.07 0.149 Q
2 Christine Ohuruogu 28 Great Britain GBR 50.22 0.222 Q
3 Rosemarie Whyte 25 Jamaica JAM 50.98 0.197 q
4 Yuliya Gushchina 29 Russia RUS 51.66 0.166
5 Joanne Cuddihy 28 Ireland IRL 51.88 0.209
6 Tjipekapora Herunga 24 Namibia NAM 52.53 0.200
7 Jenna Martin 24 Canada CAN 52.83 0.185
8 Joy Nakhumicha Sakari 26 Kenya KEN 52.95 0.196

Semi-Finals Heat Two

Rank Athlete Age Team NOC T(A) RT
1 Amantle Montsho 29 Botswana BOT 50.15 0.205 Q
2 Francena McCorory 23 United States USA 50.19 0.246 Q
3 Libania Grenot 29 Italy ITA 51.18 0.163
4 Christine Day 25 Jamaica JAM 51.19 0.194
5 Regina George Grause 21 Nigeria NGR 51.35 0.151
6 Alina Lohvynenko 22 Ukraine UKR 51.38 0.194
7 Shana Cox 27 Great Britain GBR 52.58 0.185
8 Aliann Pompey 34 Guyana GUY 52.58 0.147

Semi-Finals Heat Three

Rank Athlete Age Team NOC T(A) RT
1 Antonina Krivoshapka 25 Russia RUS 49.81 0.198 Q
2 DeeDee Trotter 29 United States USA 49.87 0.187 Q
3 Novlene Williams-Mills 30 Jamaica JAM 49.91 0.247 q
4 Omolara Omotosho 19 Nigeria NGR 51.41 0.195
5 Nataliya Pyhyda 31 Ukraine UKR 51.41 0.176
6 Carol Rodríguez 26 Puerto Rico PUR 52.08 0.210
7 Lee McConnell 33 Great Britain GBR 52.24 0.219
8 Marlena Wesh 21 Haiti HAI 52.49 0.251