Davis Love III has the most career rounds, with 2,739 rounds.

	NAME	ROUNDS	EVENTS	TOP 10	WINS	MONEY
1	Davis Love III D. Love III	2,739	2418	180	21	$44,959,243
2	Mark Calcavecchia M. Calcavecchia	2,606	2355	142	13	$24,214,778
3	Jay Haas J. Haas	2,510	2402	130	8	$14,241,577
4	Mark Brooks M. Brooks	2,493	2307	58	7	$9,455,442
5	Billy Mayfair B. Mayfair	2,475	2396	73	5	$20,303,642
6	Jeff Sluman J. Sluman	2,466	2326	105	6	$18,165,266
7	John Cook J. Cook	2,418	2228	98	11	$12,685,199
8	Stewart Cink S. Cink	2,394	1738	105	8	$43,905,339
9	Scott Hoch S. Hoch	2,344	2132	163	11	$18,530,158
10	Fred Couples F. Couples	2,330	2087	162	15	$22,860,333
11	Brad Faxon B. Faxon	2,324	2170	88	8	$17,769,250
12	Joey Sindelar J. Sindelar	2,311	2246	83	7	$11,196,462
13	Bob Tway B. Tway	2,299	2156	103	8	$15,785,814
14	Mark O'Meara M. O'Meara	2,282	2132	119	16	$14,325,370
15	Phil Mickelson P. Mickelson	2,273	1779	198	45	$94,798,661
16	Corey Pavin C. Pavin	2,269	2172	108	15	$16,021,370
17	Jim Furyk J. Furyk	2,250	1827	188	17	$71,507,269
18	Vijay Singh V. Singh	2,224	1892	185	34	$71,281,216
19	Kenny Perry K. Perry	2,216	2073	104	14	$32,123,129
20	Fred Funk F. Funk	2,214	1998	93	8	$21,310,436
21	Dan Forsman D. Forsman	2,178	1993	64	5	$8,687,983
22	Bob Estes B. Estes	2,172	2042	91	4	$21,628,538
23	Loren Roberts L. Roberts	2,155	2039	94	8	$15,154,767
24	Hal Sutton H. Sutton	2,154	2057	124	14	$15,267,686
25	Scott Verplank S. Verplank	2,116	1841	93	5	$27,500,226

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