South African David Frost, heavily bundled against the early-morning chill, shot a three-under-par 68 and took over the second-round lead Friday in the $600,000 Bay Hill golf tournament at Orlando, Fla.
"It was very cold when we started," Frost said. "I was wearing two sweaters and my rain suit."
Frost, 27, a frequent contender but not yet a winner on the PGA Tour, had a 36-hole total of 135.
The 1986 South African Open champion made a 10-foot putt for par after missing the green on the 18th hole.
That left him one stroke in front of Tim Simpson (68) and Payne Stewart (67), who has had nine second-place finishes since his last victory in the 1983 Walt Disney tournament.
U.S. Open champion Ray Floyd pitched in for an eagle-3 in a round of 68 that put him two off the pace. He was tied with Curtis Strange, who birdied two of the last three holes for a 66.