Steve Flesch has a comfortable five-stroke lead after Saturday's third round of the Reno-Tahoe Open.
The 40-year-old carded a three-under-par 69 and finished strong with two of his five birdies on numbers 17 and 18 to sit at 15-under 201 at Montreux Golf and Country Club.
Flesch leads a trio of golfers, including John Merrick, who finished four-under to pull into a second-place tie with Steve Allan and Todd Fischer at 206.
Charles Warren, who is still searching for his first PGA Tour victory, is a stroke back at nine-under.
Kevin Stadler, who was tied for 38th place after the second round, did Merrick one better with a five-under 67 to put himself at eight-under.
After starting with three birdies on the back nine, Stadler continued his momentum with another birdie on the third hole and an eagle on number four. A bogey on seven was Stadler's only blemish.
Defending champion Will MacKenzie is tied for 26th at four-under 212 after a one-over 73.