won her heat against Yulia Guschina who finished 0.18 seconds behind. She won the semi-final over Shericka Williams by 0.14 seconds. In the final, she became the first ever British female Olympic 400m champion, by beating the pre-race favourite Sanya Richards (bronze) and Shericka Williams (silver), with a time of 49.62s, the fastest time of 2008. In doing so, Ohuruogu won the 50th gold medal for Great Britain in athletics at the Summer Olympics. She was once again ranked No. 2 in the world over 400m behind Sanya Richards. Ohuruogu was also part of the bronze medal-winning team in the 4 × 400 m relay, initially finishing 5th but being upgraded to 3rd place following subsequent disqualifications for drugs offences of the teams finishing in 3rd and 4th place. 2009 In preparation for the European Indoor Championships in Turin, Ohuruogu set personal bests in the 60 metres and 200 m at the Birmingham Grand Prix. She competed at the 2009 Manchester City Games, finishing second in the 150 metres final in 17.10 seconds. She ran a personal best 22.85 seconds to take second place in the 200 m at the Fanny Blankers-Koen Games. While she won the 400 m national title at the UKA Championships in Birmingham that July, her times and finishes over the distance at IAAF Golden League meets were unimpressive. She had failed to break 51 seconds in the 2009 season; some distance behind world-leader Richards' best of 49.23 seconds. A hamstring problem caused her to withdraw from the London Grand Prix, raising doubts that she would be able to defend her World title. Ohuruogu's form improved in time for the 2009 World Championships, and she set a season's best time in her semi-final heat. She ran another season's best of 50.21s in the final, well behind Sanya Richards, who won in a time of 49.00s. 2010 Ohuruogu was ruled out of the European Championships in Barcelona with a thigh injury, and later in the year withdrew from the 2010 Commonwealth Games in Delhi, citing niggling injury that she did not want to aggravate. 2011 Ohuruogu was selected for the British team at the 2011 World Championships. She was disqualified from the individual 400 m after a false start. 2012 In the Indoor World Championships 4 × 400 m relay in Istanbul Ohuruogu, after legs from Shana Cox and Nicola Sanders took over in third place for