Home Run Percentage
All-Time Single-Season Z-Leaders
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Appearances
Babe Ruth* (15)
1920 #1
1921 #2
1919 #3
1927 #4
1926 #5
1928 #6
1924 #7
1918 #9
1929 #11
1923 #16
1922 #22
1930 #23
1931 #24
1932 #34
1933 #52
Jimmie Foxx* (8)
1932 #20
1933 #25
1934 #67
1935 #105
1938 #112
1929 #123
1939 #134
1936 #145
Mel Ott* (8)
1944 #60
1932 #69
1938 #70
1936 #81
1939 #97
1931 #98
1943 #119
1929 #137
Lou Gehrig* (6)
1927 #29
1936 #42
1934 #49
1931 #59
1929 #133
1930 #138
Ted Williams* (6)
1942 #41
1941 #53
1957 #85
1954 #103
1946 #116
1949 #127
Mark McGwire* (5)
1998 #14
1995 #35
1999 #47
1996 #72
1992 #74
Barry Bonds (5)
2001 #15
2004 #45
2002 #61
2003 #64
1992 #106
Gavvy Cravath* (3)
1915 #10
1914 #36
1917 #77
Cy Williams* (3)
1923 #17
1927 #75
1916 #80
Charley Jones (3)
1879 #18
1876 #88
1880 #99
Lip Pike* (3)
1872 #26
1877 #39
1873 #136
Harry Stovey* (3)
1883 #33
1885 #57
1880 #125
Jim O'Rourke* (2)
1875 #12
1880 #146
George Hall (2)
1876 #19
1875 #130
Tim Jordan* (2)
1906 #21
1908 #44
Rogers Hornsby* (2)
1925 #30
1922 #38
Hank Greenberg* (2)
1938 #37
1946 #50
Tilly Walker (2)
1918 #40
1922 #120
Ralph Kiner* (2)
1949 #46
1947 #86
Johnny Mize* (2)
1940 #51
1947 #113
Hack Wilson* (2)
1930 #55
1927 #143
Mike Schmidt* (2)
1981 #56
1980 #82
Dave Kingman* (2)
1976 #68
1979 #102
Bill Joyce (2)
1894 #73
1895 #122
Willie McCovey* (2)
1969 #78
1968 #118
Mickey Mantle* (2)
1956 #93
1961 #139
Willie Mays* (2)
1965 #94
1964 #115
Ken Williams* (2)
1925 #104
1922 #114
This chart lists the top 1% of all player-seasons.
Active players in bold, asterisk (*) means HOF.
See historical home run percentage graph.
| Player | Year / Lg | HR% | Z-Score | |
|---|---|---|---|---|
| 1. | Babe Ruth* | 1920 AL | .118 | 8.8407 |
| 2. | Babe Ruth* | 1921 AL | .109 | 7.3502 |
| 3. | Babe Ruth* | 1919 AL | .067 | 7.2322 |
| 4. | Babe Ruth* | 1927 AL | .111 | 6.9990 |
| 5. | Babe Ruth* | 1926 AL | .095 | 6.8845 |
| 6. | Babe Ruth* | 1928 AL | .101 | 6.8403 |
| 7. | Babe Ruth* | 1924 AL | .087 | 6.7729 |
| 8. | Buck Freeman | 1899 NL | .043 | 6.4024 |
| 9. | Babe Ruth* | 1918 AL | .035 | 6.0029 |
| 10. | Gavvy Cravath* | 1915 NL | .046 | 5.8530 |
| 11. | Babe Ruth* | 1929 AL | .092 | 5.6328 |
| 12. | Jim O'Rourke* | 1875 NA | .017 | 5.6194 |
| 13. | Dan Brouthers* | 1881 NL | .030 | 5.5222 |
| 14. | Mark McGwire* | 1998 NL | .138 | 5.5192 |
| 15. | Barry Bonds | 2001 NL | .153 | 5.4412 |
| 16. | Babe Ruth* | 1923 AL | .079 | 5.3848 |
| 17. | Cy Williams* | 1923 NL | .077 | 5.3243 |
| 18. | Charley Jones | 1879 NL | .025 | 5.2485 |
| 19. | George Hall | 1876 NL | .019 | 5.1910 |
| 20. | Jimmie Foxx* | 1932 AL | .099 | 5.1783 |
| 21. | Tim Jordan* | 1906 NL | .027 | 5.1153 |
| 22. | Babe Ruth* | 1922 AL | .086 | 5.0578 |
| 23. | Babe Ruth* | 1930 AL | .095 | 5.0478 |
| 24. | Babe Ruth* | 1931 AL | .086 | 5.0195 |
| 25. | Jimmie Foxx* | 1933 AL | .084 | 5.0179 |
| 26. | Lip Pike* | 1872 NA | .021 | 4.9869 |
| 27. | Jack Clements | 1893 NL | .045 | 4.9833 |
| 28. | Jimmy Hallinan | 1875 NA | .015 | 4.9144 |
| 29. | Lou Gehrig* | 1927 AL | .080 | 4.8949 |
| 30. | Rogers Hornsby* | 1925 NL | .077 | 4.8159 |
| 31. | Ned Williamson* | 1884 NL | .065 | 4.8103 |
| 32. | Paul Hines | 1878 NL | .016 | 4.6339 |
| 33. | Harry Stovey* | 1883 AA | .033 | 4.6205 |
| 34. | Babe Ruth* | 1932 AL | .090 | 4.6075 |
| 35. | Mark McGwire* | 1995 AL | .123 | 4.6027 |
| 36. | Gavvy Cravath* | 1914 NL | .038 | 4.6002 |
| 37. | Hank Greenberg* | 1938 AL | .104 | 4.5672 |
| 38. | Rogers Hornsby* | 1922 NL | .067 | 4.5653 |
| 39. | Lip Pike* | 1877 NL | .015 | 4.5335 |
| 40. | Tilly Walker | 1918 AL | .027 | 4.4834 |
| 41. | Ted Williams* | 1942 AL | .069 | 4.4811 |
| 42. | Lou Gehrig* | 1936 AL | .085 | 4.4697 |
| 43. | Buck Ewing* | 1883 NL | .027 | 4.4650 |
| 44. | Tim Jordan* | 1908 NL | .023 | 4.4000 |
| 45. | Barry Bonds | 2004 NL | .121 | 4.3807 |
| 46. | Ralph Kiner* | 1949 NL | .098 | 4.3710 |
| 47. | Mark McGwire* | 1999 NL | .125 | 4.3613 |
| 48. | Sam Crawford* | 1901 NL | .031 | 4.3571 |
| 49. | Lou Gehrig* | 1934 AL | .085 | 4.3552 |
| 50. | Hank Greenberg* | 1946 AL | .084 | 4.3477 |
| 51. | Johnny Mize* | 1940 NL | .074 | 4.3419 |
| 52. | Babe Ruth* | 1933 AL | .074 | 4.3404 |
| 53. | Ted Williams* | 1941 AL | .081 | 4.3392 |
| 54. | Kevin Mitchell* | 1989 NL | .087 | 4.3308 |
| 55. | Hack Wilson* | 1930 NL | .096 | 4.3201 |
| 56. | Mike Schmidt* | 1981 NL | .088 | 4.2808 |
| 57. | Harry Stovey* | 1885 AA | .027 | 4.2560 |
| 58. | Charlie Bennett* | 1881 NL | .023 | 4.2452 |
| 59. | Lou Gehrig* | 1931 AL | .074 | 4.2314 |
| 60. | Mel Ott* | 1944 NL | .065 | 4.2187 |
| 61. | Barry Bonds | 2002 NL | .114 | 4.2125 |
| 62. | Jim Thome | 2002 AL | .108 | 4.2042 |
| 63. | Joe Start | 1875 NA | .013 | 4.1887 |
| 64. | Barry Bonds | 2003 NL | .115 | 4.1812 |
| 65. | Jimmy Wood | 1872 NA | .018 | 4.1805 |
| 66. | John Reilly | 1888 AA | .025 | 4.1800 |
| 67. | Jimmie Foxx* | 1934 AL | .082 | 4.1732 |
| 68. | Dave Kingman* | 1976 NL | .078 | 4.1657 |
| 69. | Mel Ott* | 1932 NL | .067 | 4.1560 |
| 70. | Mel Ott* | 1938 NL | .068 | 4.1284 |
| 71. | Hank Aaron* | 1971 NL | .095 | 4.1137 |
| 72. | Mark McGwire* | 1996 AL | .123 | 4.1019 |
| 73. | Bill Joyce | 1894 NL | .048 | 4.0957 |
| 74. | Mark McGwire* | 1992 AL | .090 | 4.0812 |
| 75. | Cy Williams* | 1927 NL | .061 | 4.0735 |
| 76. | Willie Stargell* | 1971 NL | .094 | 4.0588 |
| 77. | Gavvy Cravath* | 1917 NL | .024 | 4.0399 |
| 78. | Willie McCovey* | 1969 NL | .092 | 4.0286 |
| 79. | Charlie Keller* | 1943 AL | .061 | 4.0000 |
| 80. | Cy Williams* | 1916 NL | .030 | 3.9960 |
| 81. | Mel Ott* | 1936 NL | .062 | 3.9710 |
| 82. | Mike Schmidt* | 1980 NL | .088 | 3.9644 |
| 83. | Vic Saier | 1914 NL | .034 | 3.9595 |
| 84. | Henry Luff | 1875 NA | .012 | 3.9430 |
| 85. | Ted Williams* | 1957 AL | .090 | 3.9417 |
| 86. | Ralph Kiner* | 1947 NL | .090 | 3.9265 |
| 87. | Socks Seybold | 1902 AL | .031 | 3.9240 |
| 88. | Charley Jones | 1876 NL | .014 | 3.9228 |
| 89. | Dolph Camilli* | 1941 NL | .064 | 3.9207 |
| 90. | Rudy York* | 1943 AL | .060 | 3.9207 |
| 91. | Fred Dunlap* | 1884 UA | .029 | 3.9075 |
| 92. | Wally Berger* | 1933 NL | .051 | 3.9036 |
| 93. | Mickey Mantle* | 1956 AL | .098 | 3.9032 |
| 94. | Willie Mays* | 1965 NL | .093 | 3.9003 |
| 95. | Cecil Fielder* | 1990 AL | .089 | 3.8922 |
| 96. | Goose Goslin* | 1930 AL | .076 | 3.8888 |
| 97. | Mel Ott* | 1939 NL | .068 | 3.8864 |
| 98. | Mel Ott* | 1931 NL | .058 | 3.8852 |
| 99. | Charley Jones | 1880 NL | .018 | 3.8750 |
| 100. | Tip O'Neill | 1887 AA | .027 | 3.8690 |
| 101. | Fred Pfeffer | 1884 NL | .054 | 3.8545 |
| 102. | Dave Kingman* | 1979 NL | .090 | 3.8526 |
| 103. | Ted Williams* | 1954 AL | .075 | 3.8444 |
| 104. | Ken Williams* | 1925 AL | .061 | 3.8307 |
| 105. | Jimmie Foxx* | 1935 AL | .067 | 3.8223 |
| 106. | Barry Bonds | 1992 NL | .072 | 3.8144 |
| 107. | Sammy Sosa | 1998 NL | .103 | 3.8024 |
| 108. | John O'Rourke | 1879 NL | .019 | 3.7969 |
| 109. | Harry Davis* | 1906 AL | .022 | 3.7953 |
| 110. | Dave Robertson* | 1917 NL | .023 | 3.7756 |
| 111. | Ed Crane | 1884 UA | .028 | 3.7682 |
| 112. | Jimmie Foxx* | 1938 AL | .088 | 3.7504 |
| 113. | Johnny Mize* | 1947 NL | .087 | 3.7487 |
| 114. | Ken Williams* | 1922 AL | .067 | 3.7450 |
| 115. | Willie Mays* | 1964 NL | .081 | 3.7273 |
| 116. | Ted Williams* | 1946 AL | .074 | 3.7220 |
| 117. | Bill Nicholson* | 1943 NL | .048 | 3.7123 |
| 118. | Willie McCovey* | 1968 NL | .069 | 3.6926 |
| 119. | Mel Ott* | 1943 NL | .047 | 3.6804 |
| 120. | Tilly Walker | 1922 AL | .065 | 3.6657 |
| 121. | Frank Schulte* | 1911 NL | .036 | 3.6625 |
| 122. | Bill Joyce | 1895 NL | .036 | 3.6598 |
| 123. | Jimmie Foxx* | 1929 AL | .064 | 3.6540 |
| 124. | Billy O'Brien | 1887 NL | .042 | 3.6459 |
| 125. | Harry Stovey* | 1880 NL | .017 | 3.6391 |
| 126. | John Bass | 1871 NA | .034 | 3.6377 |
| 127. | Ted Williams* | 1949 AL | .076 | 3.6365 |
| 128. | Dick Allen* | 1972 AL | .073 | 3.6347 |
| 129. | Harmon Killebrew* | 1967 AL | .080 | 3.6345 |
| 130. | George Hall | 1875 NA | .011 | 3.6316 |
| 131. | Jake Stahl* | 1910 AL | .019 | 3.6209 |
| 132. | Frank Baker* | 1913 AL | .021 | 3.6198 |
| 133. | Lou Gehrig* | 1929 AL | .063 | 3.6164 |
| 134. | Jimmie Foxx* | 1939 AL | .075 | 3.6134 |
| 135. | Wally Pipp* | 1916 AL | .022 | 3.5949 |
| 136. | Lip Pike* | 1873 NA | .014 | 3.5942 |
| 137. | Mel Ott* | 1929 NL | .077 | 3.5936 |
| 138. | Lou Gehrig* | 1930 AL | .071 | 3.5695 |
| 139. | Mickey Mantle* | 1961 AL | .105 | 3.5640 |
| 140. | Oscar Walker | 1882 AA | .022 | 3.5635 |
| 141. | Darryl Strawberry* | 1988 NL | .072 | 3.5601 |
| 142. | Bill Nicholson* | 1944 NL | .057 | 3.5598 |
| 143. | Hack Wilson* | 1927 NL | .054 | 3.5573 |
| 144. | Sammy Sosa | 2001 NL | .111 | 3.5538 |
| 145. | Jimmie Foxx* | 1936 AL | .070 | 3.5480 |
| 146. | Jim O'Rourke* | 1880 NL | .017 | 3.5471 |
| 147. | Jimmy Collins* | 1898 NL | .025 | 3.5307 |
| 148. | Carlos Pena | 2007 AL | .094 | 3.5258 |
| 149. | Harry Lumley | 1907 NL | .020 | 3.5255 |
| 150. | Ty Cobb* | 1909 AL | .016 | 3.5208 |
| 151. | Hal Chase* | 1915 FL | .030 | 3.5156 |
| 152. | Eric Davis* | 1989 NL | .074 | 3.5063 |