Arjun Atwal endured a nightmarish back nine and fell dramatically on the leaderboard in the third round of the South Georgia Classic on Web.com Tour here.
Atwal, who had two birdies in first five holes turned in even par. But then in a space of five holes he dropped four bogeys and a triple bogey eight on par-5 11th to card a six-over 42 for back nine.
Will Wilcox fired a course-record 63 Saturday and moved into a nearly insurmountable lead after 54 holes. Wilcox carded his personal best and it was also a tournament record as he moved to 16-under 200 total, seven strokes in front of his nearest competitors.
First-round leader Ryan Spears (68), D J Brigman (70) and Michael Putnam (70) shared second place at 9-under while Andrew Loupe (71) and second-round leader Hudson Swafford (72) were eight behind the torrid pace being set by the 26-year old Wilcox.
Wilcox destroyed the course on a day when only nine of 65 players posted sub-70 scores. His 63, which included a bogey at the final hole, and was five strokes better than the next best scores -- 68s by Spears and Will MacKenzie.
His seven-shot lead matches the second-biggest 54-hole advantage in Tour history.
Bhavik Patel (67-70-74) slipped to tied 12th after being second at the end of 36 holes.