Single-Season Records
	Home Runs				On-base %				Slugging %				Bases on Balls
1	Roger Maris	61	1961	1	Ted Williams	0.5528	1941	1	Babe Ruth	0.8490	1920	1	Babe Ruth	170	1923
2	Babe Ruth	60	1927	2	John McGraw	0.5475	1899	2	Babe Ruth	0.8463	1921	2	Ted Williams	162	1947
3	Babe Ruth	59	1921	3	Babe Ruth	0.5445	1923	3	Babe Ruth	0.7722	1927	2	Ted Williams	162	1949
4	Jimmie Foxx	58	1932	4	Babe Ruth	0.5328	1920	4	Lou Gehrig	0.7654	1927	4	Eddie Yost	151	1956
4	Hank Greenberg	58	1938	5	Ted Williams	0.5256	1957	5	Babe Ruth	0.7644	1923	5	Babe Ruth	150	1920
4	Ryan Howard	58	2006	6	Billy Hamilton	0.5228	1894	6	Rogers Hornsby	0.7560	1925	6	Eddie Joost	149	1949
7	Luis Gonzalez	57	2001	7	Babe Ruth	0.5156	1926	7	Jeff Bagwell	0.7500	1994	6	Jeff Bagwell	149	1999
8	Hack Wilson	56	1930	8	Babe Ruth	0.5126	1924	8	Jimmie Foxx	0.7487	1932	8	Eddie Stanky	148	1945
8	Ken Griffey	56	1997	9	Babe Ruth	0.5123	1921	9	Babe Ruth	0.7391	1924	8	Jimmy Wynn	148	1969
8	Ken Griffey	56	1998	10	Mickey Mantle	0.5120	1957	10	Babe Ruth	0.7374	1926	10	Jimmy Sheckard	147	1911
11	Babe Ruth	54	1920	11	Rogers Hornsby	0.5072	1924	11	Ted Williams	0.7346	1941	11	Ted Williams	147	1941
11	Babe Ruth	54	1928	12	John McGraw	0.5045	1900	12	Babe Ruth	0.7317	1930	12	Mickey Mantle	146	1957
11	Ralph Kiner	54	1949	13	Joe Kelley	0.5024	1894	13	Ted Williams	0.7310	1957	13	Babe Ruth	145	1921
11	Mickey Mantle	54	1961	14	Hugh Duffy	0.5016	1894	14	Frank Thomas	0.7293	1994	13	Ted Williams	145	1942
11	David Ortiz	54	2006	15	Ed Delahanty	0.5000	1895	15	Hack Wilson	0.7231	1930	13	Harmon Killebrew	145	1969
11	Alex Rodriguez	54	2007	16	Ted Williams	0.4992	1942	16	Rogers Hornsby	0.7223	1922	16	Babe Ruth	144	1926
11	Jose Bautista	54	2010	17	Ted Williams	0.4986	1947	17	Lou Gehrig	0.7212	1930	16	Eddie Stanky	144	1950
18	Chris Davis	53	2013	18	Rogers Hornsby	0.4983	1928	18	Larry Walker	0.7201	1997	16	Ted Williams	144	1951
19	Mickey Mantle	52	1956	19	Ted Williams	0.4970	1946	19	Albert Belle	0.7136	1994	19	Joey Votto	143	2015
19	Willie Mays	52	1965	20	Ted Williams	0.4969	1948	20	Larry Walker	0.7100	1999	20	Babe Ruth	142	1924
19	George Foster	52	1977									20	Gary Sheffield	142	1996
19	Jim Thome	52	2002