Tiger Woods had his most tournament wins in a season in 2000, with 9 tournament wins.

NAME	WINS	SEASON	EVENTS	TOP 10	SCORING AVG	ROUNDS	GIR%	FWY%	DRIVING DISTANCE AVG	PUTTING AVG	SAND SAVE%	SCRAMBLING %	FEDEXCUP POINTS	MONEY
Tiger Woods	9	2000	82	17	67.8	84	75.2	71.2	298	1.7	57.3	67.1		$9,188,321
Tiger Woods	8	2006	55	11	68.1	56	74.2	60.7	306.4	1.8	55.2	62.8		$9,941,563
Tiger Woods	8	1999	83	16	68.4	79	71.4	71.3	293.1	1.8	56.8	63.6		$6,616,585
Tiger Woods	7	2007	63	12	67.8	64	71.0	59.8	302.4	1.7	52.0	61.0	53,607	$10,867,052
Tiger Woods	6	2009	64	14	68.1	66	68.5	64.3	298.4	1.7	61.9	68.2	4,000	$10,508,163
Tiger Woods	6	2005	76	13	68.7	78	69.9	54.6	316.1	1.7	54.2	62.1		$10,628,024
Tiger Woods	5	2013	16	8	68.9	60	67.6	62.5	293.2	1.7	60.8	60.0	4,352	$8,553,439
Tiger Woods	5	2003	74	12	68.4	72	68.6	62.7	299.5	1.7	57.7	60.2		$6,673,413
Tiger Woods	5	2002	69	13	68.6	72	74.0	67.5	293.3	1.8	58.0	69.7		$6,912,625
Tiger Woods	5	2001	76	9	68.8	84	71.9	65.5	297.6	1.8	53.5	69.8		$5,687,777
Tiger Woods	4	2008	0	6		20							22,695	$5,775,000
Tiger Woods	4	1997	81	9	69.1	83	70.4	68.6	294.8	1.8	44.0	60.1		$2,066,833
Tiger Woods	3	2012	69	9	68.9	60	67.6	63.9	297.4	1.8	49.0	63.2	2,663	$6,133,158
Tiger Woods	2	1996	0	5		44								$790,594
Tiger Woods	1	2019-20	7	2	70.3	32	64.9	57.2	299.4	1.8	43.5	57.1	641	$2,083,038
Tiger Woods	1	2018-19	12	4	70.3	41	70.0	65.8	296.8	1.8	46.4	58.0	1,069	$3,199,615
Tiger Woods	1	2017-18	18	7	69.4	72	68.1	59.0	303.4	1.7	49.5	64.6	2,219	$5,443,841
Tiger Woods	1	2004	78	14	69	76	66.9	56.1	301.9	1.7	53.5	61.1		$5,365,472
Tiger Woods	1	1998	77	13	69.2	73	67.6	67.9	296.3	1.8	53.0	64.3		$1,841,117

StatMuse has season-level data for tournament wins going back to the 1980 season.