Hong Kong's Chau Pui came in from the cold on Tuesday - literally - to take the first-round lead at the HK$450,000 Ageas HKPGA Championship. Unheralded and unknown Chau fired a one-under-par 71 in difficult conditions at Kau Sai Chau to race into a three-shot lead over defending champion Unho Park, who is among a group of four players in a share of second place. I just tried to play as I normally do and not worry too much about the tournament Chau Pui "It was a tough day so I'm delighted with my score," said 22-year-old Chau, who works as an instructor in Shenzhen. "I just tried to play as I normally do and not worry too much about the tournament. "If I can continue to focus on my game I can hopefully finish better than last year," said Chau, who was fifth in the event 12 months ago. Park, who is aiming for a record fourth consecutive victory, got his title defence off to the perfect start with birdies at the opening two holes but a bogey at the closing hole, where he lost a ball off the tee, put a dampener on an otherwise sound performance by the Singapore-based Australian. "I got off to a great start in appalling weather - it was really cold and the rain was coming down hard - but then I started making mistakes as the conditions improved," said Park, who finished in 27th place on last year's Asian Tour order of merit. Alongside Park on two over is the Hong Kong duo of James Wong Woon-man and Mickey Chan Chun-hong, as well as 2010 champion CJ Gatto of the United States. The tournament heads to Fanling today for the second round, with the third and final round at Clearwater Bay Golf and Country Club tomorrow.