Gary Koch hit 62.0 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		Gary Koch G. Koch	62.0	1980	93	2		72.1	101	63.3	248.9		48.8			$39,827

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