Mike Weir tied the course record with a 10-under-par 63 to take a three-stroke lead after the first round of the USPGA season-opening Mercedes Championship in Hawaii.
The Canadian left-hander opened with four straight birdies and reached eight under with another birdie at the 10th hole.
Weir cooled off but only slightly as he negotiated the normally windy Plantation Course without a bogey.
Frank Lickliter fired a seven-under 66 to grab sole possession of second place.
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Reigning Open champion David Duval, defending champion Jim Furyk, Chris DiMarco, Cameron Beckman and Scott Verplank all carded 67s.
PGA Player of the Year Tiger Woods stayed in contention with a five-under 68. The 2000 champion is tied for eighth with Kenny Perry.
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