Newly crowned world champion Cheng Kwok-fai hopes to add the Hong Kong Open crown to his trophy collection this week. Cheng, who won the world title in Shenzhen on Sunday, will also be gunning for revenge after missing out on a place in Hong Kong's squad for the Asian Games in December. Ho Chi-ho and Chan King-yin will be heading for Doha after finishing ahead of Cheng in the Asian Games trial in March. Ho and Chan were no match for Cheng in Shenzhen, however, and will be hoping for better performances when the four-day Hong Kong Open starts tomorrow in Cheung Chau. All three will be competing in the IMCO class, the same category that will be used in Doha. Chan Wai-kei, who will be racing in the women's category in Doha, finished sixth in Shenzhen. Most of the world's top windsurfers have already switched to the RS:X class, which will be the Olympic category from 2008. Cheng said the world title would boost his confidence. 'Ever since I narrowly missed out on the Asian Games, I have been focused on trying to win this world championship,' he said. 'I am very happy that I have achieved my goal, it was a very tough competition.' Chan, who came second in Shenzhen, was not happy with his own performance, but was pleased for his teammate. 'It is great that Cheng won,' he said. 'We have still got a few tough weeks of training ahead for the Asian Games during which we can make some improvements. 'I am glad that Cheng will continue to be a training partner for the team for the last few weeks.' The Hong Kong Open will be held in conjunction with the Asian Championships, which will feature the RS:X class.