 Some claim the accusations were a result of xenophobia towards the Chinese.In the final of the 100-metre breaststroke, South African Cameron van der Burgh won in a world-record time of 58.46, bettering the previous record of 58.58 held by Brenton Rickard of Australia.After the race however, underwater camera footage showed winner van der Burgh did three illegal butterfly kicks on the underwater pullout (rules allow for one kick).