Since 1990, Stewart Cink has the most rounds, with 2,394 rounds.

	NAME	ROUNDS	EVENTS	TOP 10	WINS	MONEY
1	Stewart Cink S. Cink	2,394	1738	105	8	$43,905,339
2	Davis Love III D. Love III	2,354	2064	167	20	$44,113,792
3	Billy Mayfair B. Mayfair	2,346	2297	73	5	$20,183,211
4	Phil Mickelson P. Mickelson	2,273	1779	198	45	$94,798,661
5	Jim Furyk J. Furyk	2,250	1827	188	17	$71,507,269
6	Vijay Singh V. Singh	2,224	1892	185	34	$71,281,216
7	Fred Funk F. Funk	2,100	1909	91	8	$21,238,665
8	Bob Estes B. Estes	2,072	1964	89	4	$21,486,942
9	Charles Howell III C. Howell III	2,068	1465	98	3	$40,241,292
10	Brian Gay B. Gay	2,066	1621	52	5	$24,242,019
11	Lee Janzen L. Janzen	2,058	1954	66	8	$16,030,194
12	Jerry Kelly J. Kelly	2,022	1783	91	3	$29,111,710
13	David Toms D. Toms	1,998	1842	111	13	$41,898,192
14	Justin Leonard J. Leonard	1,987	1776	99	12	$33,884,791
15	Mark Calcavecchia M. Calcavecchia	1,962	1855	103	7	$21,890,317
16	Kenny Perry K. Perry	1,940	1812	97	14	$31,674,370
17	Rory Sabbatini R. Sabbatini	1,927	1396	80	6	$36,119,042
18	Jeff Maggert J. Maggert	1,918	1789	90	3	$19,350,232
19	Matt Kuchar M. Kuchar	1,906	1112	118	9	$59,949,518
20	Jeff Sluman J. Sluman	1,886	1834	78	5	$16,902,950
21	Mark Brooks M. Brooks	1,883	1742	53	6	$8,893,148
22	Billy Andrade B. Andrade	1,828	1734	52	4	$12,213,612
23	Tim Herron T. Herron	1,813	1684	59	4	$19,382,389
24	Steve Lowery S. Lowery	1,801	1681	62	3	$15,040,728
25	Lucas Glover L. Glover	1,794	1037	66	6	$40,504,876

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