Pearson, who is also reigning world champion, clocked an impressive 12.35 seconds to set a new Olympic record. Pearson found some stiff opposition in defending champion Dawn Harper of the USA. 

Australian Sally Pearson (centre) during the 100m hurdles final in London last night. Pic/AFP

However, Pearson pulled away from the pack well in time, thereby ensuring Harper had to settle for the silver (12.37sec), while American Kellie Wells claimed bronze in 12.48 second.