Bob Gilder hit 64.4 percent of greens in regulation in 1980.

		NAME	GIR%	SEASON	EVENTS	TOP 10	WINS	SCORING AVG	ROUNDS	FWY%	DRIVING DISTANCE AVG	PUTTING AVG	SAND SAVE%	SCRAMBLING %	FEDEXCUP POINTS	MONEY
1		Bob Gilder B. Gilder	64.4	1980	93	5	1	72	105	68.3	256.1		40.6			$152,597

StatMuse has season-level data for greens in regulation percent going back to the 1980 season.