ALEX REISNER / BASEBALL / CODE / CONTACT

On-Base Percentage

All-Time Single-Season Z-Leaders

See leaderboard:

Multiple
Appearances

Ted Williams* (11)
1957 #9
1941 #10
1954 #14
1947 #19
1946 #39
1942 #48
1958 #61
1949 #79
1956 #80
1948 #84
1951 #87

Barry Bonds (9)
2004 #1
2002 #2
2003 #3
2001 #4
2007 #30
1992 #68
2006 #100
1993 #104
1996 #126

Babe Ruth* (8)
1920 #13
1923 #18
1926 #55
1921 #75
1930 #76
1931 #86
1924 #91
1932 #94

Wade Boggs* (6)
1988 #5
1985 #16
1986 #33
1987 #44
1983 #51
1989 #74

Frank Thomas (6)
1994 #15
1991 #29
1992 #41
1997 #56
1996 #89
1995 #98

Billy Hamilton* (5)
1894 #71
1898 #82
1895 #107
1893 #114
1891 #115

Dan Brouthers* (5)
1886 #103
1882 #125
1891 #129
1885 #145
1889 #150

Jason Giambi (4)
2001 #6
2000 #32
2005 #50
2002 #69

Mickey Mantle* (4)
1962 #11
1957 #17
1958 #111
1956 #138

Edgar Martinez* (4)
1995 #24
1997 #57
1996 #73
1999 #116

Ty Cobb* (4)
1910 #45
1915 #53
1916 #113
1913 #122

Ross Barnes* (3)
1876 #7
1873 #66
1872 #108

John McGraw* (3)
1899 #8
1900 #42
1898 #95

Rogers Hornsby* (3)
1924 #22
1928 #70
1925 #101

Manny Ramirez (3)
2002 #25
2000 #96
2006 #118

Rod Carew* (3)
1977 #43
1974 #63
1978 #131

Todd Helton (3)
2003 #54
2004 #62
2005 #102

Albert Pujols (3)
2008 #58
2009 #88
2003 #135

Tris Speaker* (3)
1916 #60
1920 #112
1912 #117

Rickey Henderson* (3)
1990 #72
1992 #90
1985 #120

Pete Browning (2)
1882 #12
1887 #124

George Brett* (2)
1980 #28
1985 #47

Jim Thome (2)
2002 #35
1996 #132

Cap Anson* (2)
1881 #37
1872 #105

Mark McGwire* (2)
1996 #59
1998 #64

Nap Lajoie* (2)
1910 #77
1904 #143

Eddie Collins* (2)
1915 #133
1914 #152

Willie Randolph* (2)
1980 #137
1991 #149

Larry Walker* (2)
1997 #139
2001 #148

This chart lists the top 1% of all player-seasons.
Active players in bold, asterisk (*) means HOF.
See historical on-base percentage graph.

Player Year / Lg OB% Z-Score
1. Barry Bonds 2004 NL .609 5.6181
2. Barry Bonds 2002 NL .582 5.1282
3. Barry Bonds 2003 NL .529 4.4117
4. Barry Bonds 2001 NL .515 3.6693
5. Wade Boggs* 1988 AL .476 3.6397
6. Jason Giambi 2001 AL .477 3.5031
7. Ross Barnes* 1876 NL .462 3.4907
8. John McGraw* 1899 NL .547 3.4865
9. Ted Williams* 1957 AL .526 3.4703
10. Ted Williams* 1941 AL .553 3.4581
11. Mickey Mantle* 1962 AL .486 3.3297
12. Pete Browning 1882 AA .430 3.3269
13. Babe Ruth* 1920 AL .533 3.3243
14. Ted Williams* 1954 AL .513 3.2983
15. Frank Thomas 1994 AL .487 3.2654
16. Wade Boggs* 1985 AL .450 3.2504
17. Mickey Mantle* 1957 AL .512 3.2488
18. Babe Ruth* 1923 AL .545 3.2475
19. Ted Williams* 1947 AL .499 3.2195
20. Levi Meyerle 1871 NA .500 3.1670
21. John Olerud* 1993 AL .473 3.1663
22. Rogers Hornsby* 1924 NL .507 3.1660
23. King Kelly* 1886 NL .483 3.1594
24. Edgar Martinez* 1995 AL .479 3.1135
25. Manny Ramirez 2002 AL .450 3.1134
26. Miguel Cabrera 2011 AL .448 3.0767
27. Jose Bautista 2011 AL .447 3.0688
28. George Brett* 1980 AL .454 3.0552
29. Frank Thomas 1991 AL .453 3.0551
30. Barry Bonds 2007 NL .480 3.0549
31. Joe Mauer 2009 AL .444 3.0455
32. Jason Giambi 2000 AL .476 3.0200
33. Wade Boggs* 1986 AL .453 3.0181
34. Arky Vaughan* 1935 NL .491 3.0178
35. Jim Thome 2002 AL .445 3.0057
36. Chipper Jones 2008 NL .470 3.0025
37. Cap Anson* 1881 NL .442 2.9886
38. Norm Cash* 1961 AL .487 2.9882
39. Ted Williams* 1946 AL .497 2.9807
40. Fred Dunlap* 1884 UA .448 2.9707
41. Frank Thomas 1992 AL .439 2.9625
42. John McGraw* 1900 NL .505 2.9377
43. Rod Carew* 1977 AL .449 2.9312
44. Wade Boggs* 1987 AL .461 2.9266
45. Ty Cobb* 1910 AL .456 2.9074
46. Tip O'Neill 1887 AA .490 2.9024
47. George Brett* 1985 AL .436 2.8960
48. Ted Williams* 1942 AL .499 2.8873
49. Carlos Delgado 2000 AL .470 2.8840
50. Jason Giambi 2005 AL .440 2.8757
51. Wade Boggs* 1983 AL .444 2.8687
52. Roger Connor* 1885 NL .435 2.8641
53. Ty Cobb* 1915 AL .486 2.8458
54. Todd Helton 2003 NL .458 2.8395
55. Babe Ruth* 1926 AL .516 2.8369
56. Frank Thomas 1997 AL .456 2.8361
57. Edgar Martinez* 1997 AL .456 2.8284
58. Albert Pujols 2008 NL .462 2.8261
59. Mark McGwire* 1996 AL .467 2.8257
60. Tris Speaker* 1916 AL .470 2.8207
61. Ted Williams* 1958 AL .458 2.8038
62. Todd Helton 2004 NL .469 2.8015
63. Rod Carew* 1974 AL .433 2.8013
64. Mark McGwire* 1998 NL .470 2.7957
65. Toby Harrah* 1985 AL .432 2.7843
66. Ross Barnes* 1873 NA .456 2.7797
67. Fred Carroll 1889 NL .486 2.7763
68. Barry Bonds 1992 NL .456 2.7654
69. Jason Giambi 2002 AL .435 2.7654
70. Rogers Hornsby* 1928 NL .498 2.7615
71. Billy Hamilton* 1894 NL .523 2.7565
72. Rickey Henderson* 1990 AL .439 2.7555
73. Edgar Martinez* 1996 AL .464 2.7506
74. Wade Boggs* 1989 AL .430 2.7410
75. Babe Ruth* 1921 AL .512 2.7241
76. Babe Ruth* 1930 AL .493 2.7171
77. Nap Lajoie* 1910 AL .445 2.7088
78. Ed Delahanty* 1895 NL .500 2.7015
79. Ted Williams* 1949 AL .490 2.6993
80. Ted Williams* 1956 AL .479 2.6906
81. Paul O'Neill* 1994 AL .460 2.6862
82. Billy Hamilton* 1898 NL .480 2.6802
83. Ken Singleton* 1977 AL .438 2.6777
84. Ted Williams* 1948 AL .497 2.6746
85. Milton Bradley 2008 AL .436 2.6728
86. Babe Ruth* 1931 AL .495 2.6622
87. Ted Williams* 1951 AL .464 2.6576
88. Albert Pujols 2009 NL .443 2.6537
89. Frank Thomas 1996 AL .459 2.6508
90. Rickey Henderson* 1992 AL .426 2.6421
91. Babe Ruth* 1924 AL .513 2.6268
92. George Gore 1880 NL .399 2.6176
93. David Ortiz 2007 AL .445 2.6166
94. Babe Ruth* 1932 AL .489 2.6123
95. John McGraw* 1898 NL .475 2.5979
96. Manny Ramirez 2000 AL .457 2.5965
97. Alvin Davis 1989 AL .424 2.5954
98. Frank Thomas 1995 AL .454 2.5885
99. Richie Ashburn* 1955 NL .449 2.5871
100. Barry Bonds 2006 NL .454 2.5775
101. Rogers Hornsby* 1925 NL .489 2.5726
102. Todd Helton 2005 NL .445 2.5610
103. Dan Brouthers* 1886 NL .445 2.5558
104. Barry Bonds 1993 NL .458 2.5536
105. Cap Anson* 1872 NA .455 2.5492
106. Mike Hargrove* 1981 AL .424 2.5451
107. Billy Hamilton* 1895 NL .490 2.5330
108. Ross Barnes* 1872 NA .454 2.5325
109. Gary Sheffield 1996 NL .465 2.5318
110. Tony Phillips* 1993 AL .443 2.5186
111. Mickey Mantle* 1958 AL .443 2.5144
112. Tris Speaker* 1920 AL .483 2.5102
113. Ty Cobb* 1916 AL .452 2.5065
114. Billy Hamilton* 1893 NL .490 2.5015
115. Billy Hamilton* 1891 NL .453 2.4827
116. Edgar Martinez* 1999 AL .447 2.4802
117. Tris Speaker* 1912 AL .464 2.4750
118. Manny Ramirez 2006 AL .439 2.4748
119. Brian Giles 2002 NL .450 2.4707
120. Rickey Henderson* 1985 AL .419 2.4697
121. Travis Hafner 2006 AL .439 2.4669
122. Ty Cobb* 1913 AL .467 2.4652
123. Joe Morgan* 1975 NL .466 2.4618
124. Pete Browning 1887 AA .464 2.4604
125. Dan Brouthers* 1882 NL .403 2.4563
126. Barry Bonds 1996 NL .461 2.4538
127. Jesse Burkett* 1895 NL .486 2.4535
128. Bob Caruthers 1887 AA .463 2.4495
129. Dan Brouthers* 1891 AA .471 2.4495
130. Jack Clark* 1987 NL .459 2.4473
131. Rod Carew* 1978 AL .411 2.4447
132. Jim Thome 1996 AL .450 2.4430
133. Eddie Collins* 1915 AL .460 2.4322
134. Paul Molitor* 1987 AL .438 2.4307
135. Albert Pujols 2003 NL .439 2.4275
136. Lance Berkman 2004 NL .450 2.4268
137. Willie Randolph* 1980 AL .427 2.4195
138. Mickey Mantle* 1956 AL .464 2.4164
139. Larry Walker* 1997 NL .452 2.4130
140. Alex Rodriguez 2005 AL .421 2.4087
141. George Wright* 1871 NA .453 2.4073
142. Chuck Knoblauch* 1996 AL .448 2.4046
143. Nap Lajoie* 1904 AL .413 2.4038
144. Ed Swartwood 1883 AA .394 2.4028
145. Dan Brouthers* 1885 NL .408 2.4027
146. Ferris Fain 1951 AL .451 2.3993
147. Joe Kelley* 1894 NL .502 2.3938
148. Larry Walker* 2001 NL .449 2.3932
149. Willie Randolph* 1991 AL .424 2.3927
150. Dan Brouthers* 1889 NL .462 2.3919
151. Tony Gwynn* 1994 NL .454 2.3870
152. Eddie Collins* 1914 AL .452 2.3824

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