Pakistan, Sept. 29 -- Puripol Boonson broke new ground for Thailand athletics on Sunday, storming to the 200 metres gold on a damp track to complete the Asian Games sprint double while China's javelin sensation Yan Ziyi defeated an Olympic champion.

Having claimed the 100m gold in 9.90 seconds two days ago, 20-year-old Puripol became the first Thai sprinter to break the 20-second barrier in the 200m with a run of 19.88. His time at the Mizuho Park Athletic Stadium matched the seven-year-old Asian record set by China's Xie Zhenye and confirmed him as one of the continent's most exciting track talents ahead of next year's world championships in Beijing.

"I'm going to aim for more golds and more records. I can't say how fast it's going to ...