Hong Kong, Nov 24: Indian golfer S.S.P. Chawrasia doubled his overnight lead to two strokes when he carded a four-under 66 in the second round to continue to be at the top of the $2 million UBS Hong Kong Open here on Friday. Despite the gusty conditions at the Hong Kong Golf Club, the six-time winner on the Asian Tour remained unperturbed as he even extended his lead to five at one stage after birdies on third, seventh, eighth, 10th and 13th holes. IANS