Koon also claimed a silver and three bronze medals at the 2010 Commonwealth Games. Her efforts earned her RM180,000 in cash reward from the National Sports Council (NSC). However, her relationship with national chief coach Elena Kholodova then deteriorated, with Koon saying that she no longer wished to train because she had been abused and asked to share her reward. Kholodova and the director of the NSC denied her allegations.[3] Koon additionally alleged that Kholodova and the NSC had given her large amounts of painkillers rather than medical treatment for hip injuries prior to the Commonwealth Games.[4] She officially retired in May 2011.[5]