Scott Piercy shot a 10-under 62 on Thursday to take a three-stroke lead after the first round of the PGA Tour's CIMB Classic in Kuala Lumpur, Malaysia.
The American had 10 birdies in his bogey-free round at Kuala Lumpur Golf and Country Club.
Japan's Hideki Matsuyama was second in the event also sanctioned by the Asian Tour.
Americans Keagan Bradley, Jason Gore and Charles Howell III were another stroke back at 66 along with Germany's Alex Cejka and Australia's Cameron Smith.
Two-time defending champion Ryan Moore of the United States had a 67. Australia's Adam Scott opened with a 68.
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