Rod Pampling hit every fairway and scored 15 points for the early lead at The International before afternoon thunderstorms halted the opening round with half the field still on the course in Castle Pines, Colo.
The event, which uses the modified Stableford scoring system, traditionally has had problems playing around the weather.
With the PGA Championship just a week away, it's an even bigger deal this year.
Rain and lightning swept through Castle Pines Golf Club on Thursday afternoon, halting the first round with half the field still on the course.
Pampling had five birdies and an eagle at Castle Pines Golf Club for his 15 points.
Geoff Ogilvy and Jose Coceres were a point behind in the format that awards players 8 points for a double eagle, 5 for an eagle, 2 for birdie, zero for par, minus-1 for bogey and minus-3 for double bogey or worse.
The rest of the field will return early Friday to finish their first round. The second round is scheduled to follow.
Stahle leads HP Open
Amateur Louise Stahle stole the spotlight from Hall of Famer Annika Sorenstam, shooting a bogey-free 5-under 67 for the first-round lead at the HP Open in Stockholm, Sweden.
Sorenstam was tied for third after shooting a 70 on the long Ullna course.
Emelie Svenningsson, another Swede, was alone in second with a 68 after opening her round with three straight birdies. She is making her first Ladies European Tour start thanks to a wild card as the top money winner on the Swedish Telia Tour.
The 19-tear-old Stahle is heading to Arizona State in two weeks.
-- From wire reports
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