PETALING JAYA: With the Commonwealth and Asian Games campaigns over, cyclist Rizal Tisin is ready to take on a new challenge as the Olympic qualifying campaign gets under way with the first leg of the Track World Cup in Melbourne on Thursday. Rizal, who bagged the first cycling medal for Malaysia at the Commonwealth Games with his silver medal ride in the 1km time trial last month, will shift his focus to the omnium event, which is the cycling equivalent of decathlon in athletics. Omnium will make its debut in the Olympic programme in London in 2012 and Rizal has been identified as the best candidate to take up the challenge to make history as the first Malaysian qualifier by then. Rizal Tisin Each rider must compete in and complete all five events – 200m flying time trial, 5km scratch race, 3km individual pursuit, 15km points race and 1km time trial.