Single-Season Leaders & Records for On-base %

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Single-Season Leaders & Records for On-base %
Baseball Leaders & Baseball Records: Single-Season Career Active Progressive Year-by-Year League

Click on the Player for career stats and accomplishments.
+ - Indicates Hall of Famer. Bold indicates active player
* - bats left-handed, # - switch hits, ? - unknown, else - bats right-handed

Only players who finished in the top 40 for the majors in a season will appear on this list. Leaders from the current season are only included for rate stats after July 1st.

Minimum of 3.1 PA/G, 1.0 IP/G, and 0.1 decision/G for single-season leaderboards generally needed for rate statistics. Explanation of min. requirements

Rank Player (age that year) On-base % Year Bats

1. Barry Bonds* (39) .6094 2004 L

2. Barry Bonds* (37) .5817 2002 L

3. Ted Williams+* (22) .5528 1941 L

4. John McGraw+* (26) .5475 1899 L

5. Babe Ruth+* (28) .5445 1923 L

6. Babe Ruth+* (25) .5328 1920 L

7. Barry Bonds* (38) .5291 2003 L

8. Ted Williams+* (38) .5256 1957 L

9. Billy Hamilton+* (28) .5228 1894 L

10. Babe Ruth+* (31) .5156 1926 L

11. Barry Bonds* (36) .5151 2001 L

12. Babe Ruth+* (29) .5126 1924 L

13. Babe Ruth+* (26) .5123 1921 L

14. Mickey Mantle+# (25) .5120 1957 B

15. Rogers Hornsby+ (28) .5072 1924 R

16. John McGraw+* (27) .5045 1900 L

17. Joe Kelley+ (22) .5024 1894 R

18. Hugh Duffy+ (27) .5016 1894 R

19. Ed Delahanty+ (27) .5000 1895 R

20. Ted Williams+* (23) .4992 1942 L

Rank Player (age that year) On-base % Year Bats

21. Ted Williams+* (28) .4986 1947 L

22. Rogers Hornsby+ (32) .4983 1928 R

23. Ted Williams+* (27) .4970 1946 L

24. Ted Williams+* (29) .4969 1948 L

25. Bill Joyce* (28) .4956 1894 L

26. Babe Ruth+* (36) .4947 1931 L

27. Babe Ruth+* (35) .4931 1930 L

28. Arky Vaughan+* (23) .4909 1935 L

29. Ted Williams+* (30) .4904 1949 L

30. Billy Hamilton+* (29) .4903 1895 L

31. Billy Hamilton+* (27) .4896 1893 L

32. Tip O'Neill (29) .4895 1887 R

33. Rogers Hornsby+ (29) .4890 1925 R

Babe Ruth+* (37) .4890 1932 L

35. Frank Thomas (26) .4874 1994 R

36. Norm Cash* (26) .4866 1961 L

37. Ty Cobb+* (28) .4862 1915 L

38. Mickey Mantle+# (30) .4861 1962 B

39. Babe Ruth+* (32) .4860 1927 L

40. Jesse Burkett+* (26) .4858 1895 L

Rank Player (age that year) On-base % Year Bats

41. Fred Carroll (24) .4855 1889 R

42. King Kelly+ (28) .4832 1886 R

Tris Speaker+* (32) .4832 1920 L

44. Harry Heilmann+ (28) .4809 1923 R

45. Billy Hamilton+* (32) .4802 1898 L

46. Tris Speaker+* (37) .4791 1925 L

Ted Williams+* (37) .4791 1956 L

48. Edgar Martinez (32) .4789 1995 R

49. Ed Delahanty+ (26) .4784 1894 R

50. Lou Gehrig+* (33) .4776 1936 L

51. Billy Hamilton+* (30) .4772 1896 L

52. Jason Giambi* (30) .4769 2001 L

53. Jason Giambi* (29) .4759 2000 L

54. Wade Boggs+* (30) .4757 1988 L

55. Cupid Childs* (26) .4755 1894 L

56. John McGraw+* (25) .4752 1898 L

57. Harry Heilmann+ (32) .4750 1927 R

58. Tris Speaker+* (34) .4742 1922 L

59. Lou Gehrig+* (24) .4741 1927 L

60. Luke Appling+ (29) .4739 1936 R

Rank Player (age that year) On-base % Year Bats

61. Lou Gehrig+* (27) .4730 1930 L

62. Lou Gehrig+* (34) .4729 1937 L

63. John Olerud* (24) .4728 1993 L

64. Hughie Jennings+ (27) .4721 1896 R

65. Ed Delahanty+ (28) .4719 1896 R

66. John McGraw+* (24) .4709 1897 L

67. Dan Brouthers+* (33) .4707 1891 L

68. Chipper Jones# (36) .4700 2008 B

69. Bill Joyce* (30) .4699 1896 L

Mark McGwire (34) .4699 1998 R

Tris Speaker+* (28) .4699 1916 L

72. Carlos Delgado* (28) .4698 2000 L

73. Joe Kelley+ (24) .4694 1896 R

Tris Speaker+* (35) .4694 1923 L

75. Jimmie Foxx+ (24) .4693 1932 R

76. Todd Helton* (30) .4685 2004 L

77. Jesse Burkett+* (28) .4683 1897 L

78. Ty Cobb+* (38) .4680 1925 L

79. Joe Jackson* (21) .4677 1911 L

80. Lou Gehrig+* (25) .4675 1928 L

Rank Player (age that year) On-base % Year Bats

81. Ty Cobb+* (26) .4674 1913 L

82. Mark McGwire (32) .4672 1996 R

83. George Sisler+* (29) .4671 1922 L

84. Mike Griffin* (29) .4669 1894 L

85. Cupid Childs* (28) .4668 1896 L

86. Ty Cobb+* (24) .4666 1911 L

87. Joe Morgan+* (31) .4664 1975 L

88. Dan Brouthers+* (32) .4662 1890 L

89. Lou Gehrig+* (32) .4658 1935 L

90. Ty Cobb+* (27) .4657 1914 L

91. Gary Sheffield (27) .4653 1996 R

92. Lou Gehrig+* (31) .4652 1934 L

Lefty O'Doul* (32) .4652 1929 L

94. Jimmie Foxx+ (31) .4642 1939 R

95. Ed Delahanty+ (31) .4641 1899 R

Tris Speaker+* (24) .4641 1912 L

97. Pete Browning (26) .4639 1887 R

Mickey Mantle+# (24) .4639 1956 B

99. Willie Keeler+* (25) .4637 1897 L

Edgar Martinez (33) .4637 1996 R

Rank Player (age that year) On-base % Year Bats

Ted Williams+* (32) .4637 1951 L

102. Todd Helton* (26) .4634 2000 L

103. Bob Caruthers* (23) .4633 1887 L

104. Cupid Childs* (25) .4630 1893 L

Jimmie Foxx+ (21) .4630 1929 R

Hughie Jennings+ (28) .4630 1897 R

Nap Lajoie+ (26) .4630 1901 R

Babe Ruth+* (33) .4630 1928 L

109. Jesse Burkett+* (30) .4625 1899 L

110. Ross Barnes (26) .4620 1876 R

Dan Brouthers+* (31) .4620 1889 L

Jimmie Foxx+ (30) .4620 1938 R

113. Albert Pujols (28) .4618 2008 R

114. Fred Clarke+* (24) .4617 1897 L

115. Ty Cobb+* (35) .4615 1922 L

116. Eddie Collins+* (38) .4612 1925 L

Billy Hamilton+* (31) .4612 1897 L

118. Jesse Burkett+* (27) .4611 1896 L

119. Wade Boggs+* (29) .4610 1987 L

120. Barry Bonds* (31) .4607 1996 L

Rank Player (age that year) On-base % Year Bats

Jimmie Foxx+ (27) .4607 1935 R

122. Denny Lyons (24) .4606 1890 R

123. Eddie Collins+* (28) .4605 1915 L

Paul O'Neill* (31) .4605 1994 L

125. Joe Jackson* (23) .4600 1913 L

126. Eddie Stanky (33) .4597 1950 R

127. Jesse Burkett+* (24) .4594 1893 L

Rogers Hornsby+ (33) .4594 1929 R

129. John McGraw+* (22) .4592 1895 L

Frank Thomas (28) .4592 1996 R

131. Mickey Cochrane+* (30) .4591 1933 L

132. Pete Browning (29) .4588 1890 R

Jack Clark (31) .4588 1987 R

134. Rogers Hornsby+ (26) .4586 1922 R

135. Barry Bonds* (28) .4585 1993 L

Rogers Hornsby+ (27) .4585 1923 R

Mel Ott+* (21) .4585 1930 L

138. Ted Williams+* (39) .4584 1958 L

139. Rogers Hornsby+ (25) .4583 1921 R

140. Sam Thompson+* (34) .4582 1894 L

Rank Player (age that year) On-base % Year Bats

141. Larry Walker* (32) .4581 1999 L

142. Charlie Gehringer+* (34) .4580 1937 L

Todd Helton* (29) .4580 2003 L

144. Joe Jackson* (22) .4577 1912 L

145. Harry Heilmann+ (30) .4571 1925 R

146. Cap Anson+ (42) .4569 1894 R

147. Manny Ramirez (28) .4568 2000 R

148. Roy Thomas* (25) .4566 1899 L

149. Ty Cobb+* (23) .4564 1910 L

Babe Ruth+* (24) .4564 1919 L

151. Joe Kelley+ (23) .4562 1895 R

Bill Lange (24) .4562 1895 R

153. Frank Thomas (29) .4561 1997 R

154. Tuck Turner# (21) .4560 1894 B

155. Barry Bonds* (27) .4559 1992 L

Ty Cobb+* (25) .4559 1912 L

Joe Sewell+* (24) .4559 1923 L

158. Edgar Martinez (34) .4558 1997 R

Al Wingo* (27) .4558 1925 L

160. Eddie Collins+* (36) .4553 1923 L

Rank Player (age that year) On-base % Year Bats

161. Babe Herman* (27) .4547 1930 L

162. George Brett+* (27) .4544 1980 L

Hughie Jennings+ (29) .4544 1898 R

Frank Thomas (27) .4544 1995 R

Hack Wilson+ (30) .4544 1930 R

166. Elmer Smith* (28) .4541 1896 L

167. Jeff Bagwell (31) .4540 1999 R

168. John McGraw+* (20) .4539 1893 L

Buddy Myer* (34) .4539 1938 L

170. Dale Alexander (29) .4537 1932 R

George Grantham* (29) .4537 1929 L

172. Rico Carty (30) .4536 1970 R

Tony Gwynn+* (34) .4536 1994 L

174. Roy Thomas* (29) .4532 1903 L

175. Joe Cunningham* (27) .4531 1959 L

176. Lou Boudreau+ (30) .4530 1948 R

Lefty O'Doul* (33) .4530 1930 L

Arky Vaughan+* (24) .4530 1936 L

179. Frank Thomas (23) .4529 1991 R

180. Wade Boggs+* (28) .4528 1986 L

Rank Player (age that year) On-base % Year Bats

Billy Hamilton+* (25) .4528 1891 L

182. Ed Delahanty+ (34) .4527 1902 R

183. Willie McCovey+* (31) .4526 1969 L

184. Ty Cobb+* (34) .4523 1921 L

185. Ralph Kiner+ (28) .4522 1951 R

186. Mickey Cochrane+* (32) .4520 1935 L

187. Roy Cullenbine# (27) .4519 1941 B

Carl Yastrzemski+* (30) .4519 1970 L

189. Ty Cobb+* (29) .4518 1916 L

George Selkirk* (31) .4518 1939 L

Larry Walker* (30) .4518 1997 L

192. Mike Tiernan* (29) .4517 1896 L

193. Eddie Collins+* (27) .4515 1914 L

Bill Terry+* (31) .4515 1930 L

195. John McGraw+* (21) .4513 1894 L

196. Lou Gehrig+* (29) .4512 1932 L

197. Jeff Bagwell (26) .4509 1994 R

Eddie Collins+* (24) .4509 1911 L

199. Ferris Fain* (30) .4508 1951 L

Roy Thomas* (26) .4508 1900 L

Rank Player (age that year) On-base % Year Bats

201. Jeff Bagwell (28) .4506 1996 R

Ed Morgan (27) .4506 1931 R

203. Harry Rice* (23) .4504 1925 L

204. Wade Boggs+* (27) .4503 1985 L

Eddie Collins+* (25) .4503 1912 L

Roger Connor+* (32) .4503 1890 L

Brian Giles* (31) .4503 2002 L

208. Stan Musial+* (27) .4502 1948 L

Tommy Tucker# (25) .4502 1889 B

210. Lance Berkman# (28) .4498 2004 B

Manny Ramirez (30) .4498 2002 R

212. Frank Chance+ (28) .4497 1905 R

Jim Thome* (25) .4497 1996 L

214. Charlie Gehringer+* (31) .4495 1934 L

215. Phil Cavarretta* (28) .4494 1945 L

216. Jimmie Foxx+ (25) .4492 1933 R

Billy Hamilton+* (34) .4492 1900 L

George Sisler+* (27) .4492 1920 L

Larry Walker* (34) .4492 2001 L

220. Stan Musial+* (30) .4490 1951 L

Rank Player (age that year) On-base % Year Bats

221. Rod Carew+* (31) .4488 1977 L

Mel Ott+* (20) .4488 1929 L

223. Mel Ott+* (30) .4487 1939 L

224. Richie Ashburn+* (28) .4486 1955 L

225. Jimmie Foxx+ (26) .4485 1934 R

226. Rogers Hornsby+ (31) .4483 1927 R

227. Mickey Mantle+# (29) .4481 1961 B

228. Babe Ruth+* (39) .4480 1934 L

229. Joe DiMaggio+ (24) .4479 1939 R

Chuck Knoblauch (27) .4479 1996 R

231. Fred Dunlap (25) .4477 1884 R

Mel Ott+* (27) .4477 1936 L

233. Bob Caruthers* (22) .4476 1886 L

234. Piggy Ward# (27) .4475 1894 B

235. Jesse Burkett+* (25) .4474 1894 L

Edgar Martinez (36) .4474 1999 R

237. John Olerud* (29) .4473 1998 L

238. Benny Kauff* (24) .4470 1914 L

239. Tony Gwynn+* (27) .4469 1987 L

240. Charlie Keller* (22) .4468 1939 L

Rank Player (age that year) On-base % Year Bats

241. Joe Kelley+ (25) .4467 1897 R

Jake Stenzel (28) .4467 1895 R

Mike Tiernan* (22) .4467 1889 L

244. Barry Bonds* (32) .4464 1997 L

245. Dolph Camilli* (30) .4462 1937 L

246. Jack Clements* (30) .4460 1895 L

Jack Fournier* (35) .4460 1925 L

Benny Kauff* (25) .4460 1915 L

249. Paul Waner+* (25) .4459 1928 L

250. Max Bishop* (33) .4458 1933 L

251. Bobby Abreu* (25) .4456 1999 L

Lou Gehrig+* (28) .4456 1931 L

Paul Waner+* (33) .4456 1936 L

254. Jim Thome* (31) .4454 2002 L

255. David Ortiz* (31) .4453 2007 L

Yank Robinson (27) .4453 1887 R

257. Denny Lyons (25) .4452 1891 R

258. Nap Lajoie+ (35) .4451 1910 R

259. Dan Brouthers+* (28) .4450 1886 L

Harry Heilmann+ (31) .4450 1926 R

Rank Player (age that year) On-base % Year Bats

261. Todd Helton* (31) .4448 2005 L

Sherry Magee (25) .4448 1910 R

263. Larry Walker* (31) .4447 1998 L

264. Riggs Stephenson (31) .4446 1929 R

265. Harry Heilmann+ (26) .4444 1921 R

Hughie Jennings+ (26) .4444 1895 R

Chief Roseman (34) .4444 1890 R

268. Wade Boggs+* (25) .4443 1983 L

269. Ty Cobb+* (30) .4441 1917 L

Bill Dahlen (24) .4441 1894 R

Joe Morgan+* (32) .4441 1976 L

272. Al Simmons+ (29) .4440 1931 R

273. Joe Jackson* (30) .4439 1920 L

Johnny Mize+* (26) .4439 1939 L

275. Mike Griffin* (30) .4437 1895 L

276. Willie McCovey+* (32) .4436 1970 L

Ed Swartwood* (31) .4436 1890 L

278. Ed Delahanty+ (29) .4435 1897 R

279. Tony Phillips# (34) .4433 1993 B

280. Mickey Mantle+# (26) .4432 1958 B

Rank Player (age that year) On-base % Year Bats

281. Cap Anson+ (38) .4430 1890 R

Roger Bresnahan+ (24) .4430 1903 R

Cupid Childs* (24) .4430 1892 L

284. Ray Grimes (28) .4424 1922 R

Ted Williams+* (21) .4424 1940 L

286. Manny Ramirez (27) .4422 1999 R

287. Max Bishop* (27) .4419 1927 L

288. Goose Goslin+* (27) .4418 1928 L

Bill Joyce* (29) .4418 1895 L

Art Wilson (29) .4418 1915 R

291. Cap Anson+ (29) .4417 1881 R

Babe Ruth+* (38) .4417 1933 L

293. Larry Doby+* (26) .4415 1950 L

Mel Ott+* (29) .4415 1938 L

295. Johnny Bassler* (29) .4414 1924 L

Eddie Collins+* (37) .4414 1924 L

297. Chief Meyers (31) .4413 1912 R

298. Richie Ashburn+* (27) .4412 1954 L

299. Jake Stenzel (27) .4411 1894 R

300. Bill Joyce* (31) .4410 1897 L

Rank Player (age that year) On-base % Year Bats

301. Eddie Collins+* (26) .4409 1913 L

Eddie Collins+* (39) .4409 1926 L

Tris Speaker+* (25) .4409 1913 L

304. Elmer Flick+* (24) .4408 1900 L

Chipper Jones# (27) .4408 1999 B

306. Dolph Camilli* (29) .4407 1936 L

307. Ross Youngs+* (27) .4406 1924 L

308. Jason Giambi* (34) .4404 2005 L

Stan Musial+* (23) .4404 1944 L

Eddie Yost (23) .4404 1950 R

311. Jesse Burkett+* (32) .4403 1901 L

312. Richie Ashburn+* (31) .4401 1958 L

Bob Johnson (33) .4401 1939 R

314. Barry Bonds* (35) .4399 2000 L

Jimmie Foxx+ (28) .4399 1936 R

Buddy Myer* (31) .4399 1935 L

317. Ty Cobb+* (31) .4397 1918 L

Jackie Robinson+ (33) .4397 1952 R

319. Joe DiMaggio+ (26) .4396 1941 R

Fred Snodgrass (22) .4396 1910 R

Rank Player (age that year) On-base % Year Bats

321. Ty Cobb+* (40) .4395 1927 L

322. Albert Pujols (23) .4394 2003 R

323. Rickey Henderson (31) .4392 1990 R

Tris Speaker+* (33) .4392 1921 L

325. Manny Ramirez (34) .4391 2006 R

326. Luke Appling+ (42) .4388 1949 R

Frank Thomas (24) .4388 1992 R

328. Travis Hafner* (29) .4387 2006 L

Ken Williams* (33) .4387 1923 L

330. Frank Chance+ (26) .4386 1903 R

Bob O'Farrell (25) .4386 1922 R

332. Albert Belle (27) .4384 1994 R

333. Eddie Collins+* (33) .4383 1920 L

Stan Musial+* (28) .4383 1949 L

335. Earl Averill+* (34) .4382 1936 L

Barry Bonds* (33) .4382 1998 L

337. Jim Thome* (24) .4381 1995 L

338. Hank Greenberg+ (27) .4380 1938 R

339. Kiki Cuyler+ (30) .4379 1929 R

Ferris Fain* (31) .4379 1952 L

Rank Player (age that year) On-base % Year Bats

Gary Sheffield (31) .4379 2000 R

342. Sam Crawford+* (31) .4378 1911 L

Ken Singleton# (30) .4378 1977 B

344. Bill Dahlen (26) .4377 1896 R

345. Paul Molitor+ (30) .4376 1987 R

346. Derek Jeter (25) .4375 1999 R

347. Luke Appling+ (28) .4374 1935 R

Johnny Pesky* (30) .4374 1950 L

Sammy Sosa (32) .4374 2001 R

350. Paul Waner+* (24) .4373 1927 L

351. Stan Musial+* (29) .4372 1950 L

352. Roy Thomas* (27) .4371 1901 L

353. Stan Musial+* (32) .4370 1953 L

354. Elmer Smith* (26) .4365 1894 L

355. J.D. Drew* (28) .4363 2004 L

Hank Greenberg+ (26) .4363 1937 R

Chuck Klein+* (25) .4363 1930 L

358. Milton Bradley# (30) .4362 2008 B

Harry Walker* (30) .4362 1947 L

Ted Williams+* (20) .4362 1939 L

Rank Player (age that year) On-base % Year Bats

Jimmy Wynn (27) .4362 1969 R

362. George Brett+* (32) .4361 1985 L

Al Simmons+ (25) .4361 1927 R

364. Wally Schang# (29) .4360 1919 B

365. Babe Herman* (26) .4359 1929 L

366. Bob Nieman (29) .4357 1956 R

Eddie Stanky (29) .4357 1946 R

368. Frank Thomas (32) .4356 2000 R

369. Tom Daly# (28) .4355 1894 B

Mike Schmidt+ (31) .4355 1981 R

Cy Williams* (37) .4355 1925 L

372. Jason Giambi* (31) .4354 2002 L

373. Max Bishop* (28) .4353 1928 L

George Harper* (35) .4353 1927 L

375. Eddie Yost (32) .4352 1959 R

376. George Davis+# (23) .4351 1894 B

377. Chipper Jones# (30) .4350 2002 B

Elmer Smith* (25) .4350 1893 L

379. Roger Connor+* (27) .4348 1885 L

380. Bernie Williams# (30) .4347 1999 B

Rank Player (age that year) On-base % Year Bats

381. Cupid Childs* (29) .4346 1897 L

382. Wally Moon* (31) .4345 1961 L

383. Cupid Childs* (22) .4343 1890 L

Stan Musial+* (25) .4343 1946 L

385. Dixie Walker* (33) .4342 1944 L

386. Nomar Garciaparra (26) .4341 2000 R

George Gore* (29) .4341 1886 L

388. Todd Helton* (33) .4340 2007 L

Yank Robinson (30) .4340 1890 R

Jimmy Sheckard* (32) .4340 1911 L

Honus Wagner+ (26) .4340 1900 R

392. Babe Ruth+* (27) .4338 1922 L

393. Magglio Ordonez (33) .4336 2007 R

394. Hank Greenberg+ (29) .4333 1940 R

395. Cap Anson+ (34) .4329 1886 R

Wade Boggs+* (36) .4329 1994 L

Pat Collins (29) .4329 1926 R

398. Rod Carew+* (28) .4328 1974 L

Arky Vaughan+* (26) .4328 1938 L

400. Miller Huggins+# (35) .4324 1913 B

Rank Player (age that year) On-base % Year Bats

Larry Rosenthal* (30) .4324 1940 L

Tris Speaker+* (36) .4324 1924 L

403. Jackie Robinson+ (30) .4323 1949 R

404. George Gore* (33) .4322 1890 L

Harry Heilmann+ (27) .4322 1922 R

Tris Speaker+* (29) .4322 1917 L

407. Jeff Burroughs (27) .4321 1978 R

408. Willie Keeler+* (24) .4320 1896 L

Stan Musial+* (31) .4320 1952 L

410. Rickey Henderson (34) .4319 1993 R

411. Ralph Kiner+ (26) .4318 1949 R

412. Dan Brouthers+* (34) .4317 1892 L

Brian Giles* (29) .4317 2000 L

414. Toby Harrah (36) .4316 1985 R

Todd Helton* (27) .4316 2001 L

416. Barry Bonds* (30) .4315 1995 L

417. Johnny Evers+* (30) .4314 1912 L

418. Max Bishop* (26) .4313 1926 L

Charlie Gehringer+* (33) .4313 1936 L

Mike Piazza (28) .4313 1997 R

Rank Player (age that year) On-base % Year Bats

421. Arky Vaughan+* (22) .4312 1934 L

422. Bob Johnson (38) .4311 1944 R

423. Rogers Hornsby+ (24) .4310 1920 R

424. Lou Gehrig+* (26) .4309 1929 L

425. Mickey Mantle+# (23) .4308 1955 B

426. Will Clark* (30) .4307 1994 L

427. Ty Cobb+* (22) .4306 1909 L

Albert Pujols (26) .4306 2006 R

429. Miguel Cabrera (23) .4305 2006 R

430. Tommy McCarthy+ (26) .4304 1890 R

431. Billy Hamilton+* (24) .4303 1890 L

Babe Ruth+* (34) .4303 1929 L

Sam Thompson+* (35) .4303 1895 L

434. Lance Berkman# (25) .4302 2001 B

435. Woody English (24) .4301 1930 R

Ferris Fain* (29) .4301 1950 L

John Kruk* (32) .4301 1993 L

438. Luke Appling+ (32) .4300 1939 R

Albert Pujols (25) .4300 2005 R

440. Wade Boggs+* (31) .4299 1989 L

Rank Player (age that year) On-base % Year Bats

Pete Browning (21) .4299 1882 R

442. Lu Blue# (34) .4298 1931 B

443. Manny Ramirez (36) .4297 2008 R

444. Elmer Flick+* (22) .4296 1898 L

445. Jesse Burkett+* (31) .4295 1900 L

Tony Lazzeri+ (25) .4295 1929 R

Denny Lyons (27) .4295 1893 R

Tim Salmon (26) .4295 1995 R

449. Earl Averill+* (36) .4293 1938 L

Joe Mauer* (23) .4293 2006 L

451. Eddie Joost (33) .4292 1949 R

Jackie Robinson+ (32) .4292 1951 R

453. Ty Cobb+* (32) .4291 1919 L

Chili Davis# (35) .4291 1995 B

Jack Fournier* (25) .4291 1915 L

Tommy McCarthy+ (29) .4291 1893 R

457. Jimmie Foxx+ (22) .4290 1930 R

Kevin Mitchell (32) .4290 1994 R

Tim Raines# (27) .4290 1987 B

Cy Seymour* (32) .4290 1905 L

Rank Player (age that year) On-base % Year Bats

Paul Waner+* (31) .4290 1934 L

462. Walton Cruise* (31) .4289 1921 L

463. Todd Helton* (28) .4288 2002 L

Ken Williams* (31) .4288 1921 L

465. Doc Crandall (26) .4286 1914 R

Luis Gonzalez* (33) .4286 2001 L

Willie Keeler+* (23) .4286 1895 L

Edgar Martinez (35) .4286 1998 R

Albert Pujols (27) .4286 2007 R

470. Jack Fournier* (34) .4284 1924 L

Stan Musial+* (33) .4284 1954 L

Pete Rose# (28) .4284 1969 B

473. Larry Doby+* (27) .4283 1951 L

474. Kiki Cuyler+ (31) .4282 1930 R

475. Joe Cronin+ (31) .4281 1938 R

Charlie Gehringer+* (37) .4281 1940 L

Nick Johnson* (27) .4281 2006 L

Zack Wheat+* (36) .4281 1924 L

479. Bill Dickey+* (29) .4280 1936 L

Wally Schang# (31) .4280 1921 B

Rank Player (age that year) On-base % Year Bats

Gary Sheffield (29) .4280 1998 R

482. Harry Heilmann+ (29) .4279 1924 R

483. Bobby Abreu* (30) .4278 2004 L

Mickey Cochrane+* (31) .4278 1934 L

485. Paul Waner+* (27) .4277 1930 L

486. Henry Larkin (29) .4276 1889 R

487. Willie Keeler+* (22) .4275 1894 L

488. Harmon Killebrew+ (33) .4274 1969 R

John Olerud* (30) .4274 1999 L

490. Mike Tiernan* (28) .4273 1895 L

491. Ed Delahanty+ (33) .4272 1901 R

492. Tony Fernandez# (37) .4271 1999 B

Manny Ramirez (31) .4271 2003 R

494. Lew Fonseca (30) .4270 1929 R

Fielder Jones* (24) .4270 1896 L

Bobby Murcer* (25) .4270 1971 L

Willie Randolph (25) .4270 1980 R

Ross Youngs+* (23) .4270 1920 L

499. Brian Giles* (32) .4269 2003 L

Chipper Jones# (29) .4269 2001 B

David Justice* (28) .4269 1994 L

Reggie Smith# (32) .4269 1977 B

Honus Wagner+ (31) .4269 1905 R

Baseball Leaders & Baseball Records: Single-Season Career Active Progressive Year-by-Year League

Note that seasons prior to 1876 are not included in single-season marks, but are included in career marks.


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You Are Here > Baseball-Reference.com > Leaders & Records > Single-Season Leaders & Records for On-base %

Rank	Player (age that year)	On-base %	Year	Bats
1.	Barry Bonds* (39)	.6094	2004	L
2.	Barry Bonds* (37)	.5817	2002	L
3.	Ted Williams+* (22)	.5528	1941	L
4.	John McGraw+* (26)	.5475	1899	L
5.	Babe Ruth+* (28)	.5445	1923	L
6.	Babe Ruth+* (25)	.5328	1920	L
7.	Barry Bonds* (38)	.5291	2003	L
8.	Ted Williams+* (38)	.5256	1957	L
9.	Billy Hamilton+* (28)	.5228	1894	L
10.	Babe Ruth+* (31)	.5156	1926	L
11.	Barry Bonds* (36)	.5151	2001	L
12.	Babe Ruth+* (29)	.5126	1924	L
13.	Babe Ruth+* (26)	.5123	1921	L
14.	Mickey Mantle+# (25)	.5120	1957	B
15.	Rogers Hornsby+ (28)	.5072	1924	R
16.	John McGraw+* (27)	.5045	1900	L
17.	Joe Kelley+ (22)	.5024	1894	R
18.	Hugh Duffy+ (27)	.5016	1894	R
19.	Ed Delahanty+ (27)	.5000	1895	R
20.	Ted Williams+* (23)	.4992	1942	L
Rank	Player (age that year)	On-base %	Year	Bats
21.	Ted Williams+* (28)	.4986	1947	L
22.	Rogers Hornsby+ (32)	.4983	1928	R
23.	Ted Williams+* (27)	.4970	1946	L
24.	Ted Williams+* (29)	.4969	1948	L
25.	Bill Joyce* (28)	.4956	1894	L
26.	Babe Ruth+* (36)	.4947	1931	L
27.	Babe Ruth+* (35)	.4931	1930	L
28.	Arky Vaughan+* (23)	.4909	1935	L
29.	Ted Williams+* (30)	.4904	1949	L
30.	Billy Hamilton+* (29)	.4903	1895	L
31.	Billy Hamilton+* (27)	.4896	1893	L
32.	Tip O'Neill (29)	.4895	1887	R
33.	Rogers Hornsby+ (29)	.4890	1925	R
	Babe Ruth+* (37)	.4890	1932	L
35.	Frank Thomas (26)	.4874	1994	R
36.	Norm Cash* (26)	.4866	1961	L
37.	Ty Cobb+* (28)	.4862	1915	L
38.	Mickey Mantle+# (30)	.4861	1962	B
39.	Babe Ruth+* (32)	.4860	1927	L
40.	Jesse Burkett+* (26)	.4858	1895	L
Rank	Player (age that year)	On-base %	Year	Bats
41.	Fred Carroll (24)	.4855	1889	R
42.	King Kelly+ (28)	.4832	1886	R
	Tris Speaker+* (32)	.4832	1920	L
44.	Harry Heilmann+ (28)	.4809	1923	R
45.	Billy Hamilton+* (32)	.4802	1898	L
46.	Tris Speaker+* (37)	.4791	1925	L
	Ted Williams+* (37)	.4791	1956	L
48.	Edgar Martinez (32)	.4789	1995	R
49.	Ed Delahanty+ (26)	.4784	1894	R
50.	Lou Gehrig+* (33)	.4776	1936	L
51.	Billy Hamilton+* (30)	.4772	1896	L
52.	Jason Giambi* (30)	.4769	2001	L
53.	Jason Giambi* (29)	.4759	2000	L
54.	Wade Boggs+* (30)	.4757	1988	L
55.	Cupid Childs* (26)	.4755	1894	L
56.	John McGraw+* (25)	.4752	1898	L
57.	Harry Heilmann+ (32)	.4750	1927	R
58.	Tris Speaker+* (34)	.4742	1922	L
59.	Lou Gehrig+* (24)	.4741	1927	L
60.	Luke Appling+ (29)	.4739	1936	R
Rank	Player (age that year)	On-base %	Year	Bats
61.	Lou Gehrig+* (27)	.4730	1930	L
62.	Lou Gehrig+* (34)	.4729	1937	L
63.	John Olerud* (24)	.4728	1993	L
64.	Hughie Jennings+ (27)	.4721	1896	R
65.	Ed Delahanty+ (28)	.4719	1896	R
66.	John McGraw+* (24)	.4709	1897	L
67.	Dan Brouthers+* (33)	.4707	1891	L
68.	Chipper Jones# (36)	.4700	2008	B
69.	Bill Joyce* (30)	.4699	1896	L
	Mark McGwire (34)	.4699	1998	R
	Tris Speaker+* (28)	.4699	1916	L
72.	Carlos Delgado* (28)	.4698	2000	L
73.	Joe Kelley+ (24)	.4694	1896	R
	Tris Speaker+* (35)	.4694	1923	L
75.	Jimmie Foxx+ (24)	.4693	1932	R
76.	Todd Helton* (30)	.4685	2004	L
77.	Jesse Burkett+* (28)	.4683	1897	L
78.	Ty Cobb+* (38)	.4680	1925	L
79.	Joe Jackson* (21)	.4677	1911	L
80.	Lou Gehrig+* (25)	.4675	1928	L
Rank	Player (age that year)	On-base %	Year	Bats
81.	Ty Cobb+* (26)	.4674	1913	L
82.	Mark McGwire (32)	.4672	1996	R
83.	George Sisler+* (29)	.4671	1922	L
84.	Mike Griffin* (29)	.4669	1894	L
85.	Cupid Childs* (28)	.4668	1896	L
86.	Ty Cobb+* (24)	.4666	1911	L
87.	Joe Morgan+* (31)	.4664	1975	L
88.	Dan Brouthers+* (32)	.4662	1890	L
89.	Lou Gehrig+* (32)	.4658	1935	L
90.	Ty Cobb+* (27)	.4657	1914	L
91.	Gary Sheffield (27)	.4653	1996	R
92.	Lou Gehrig+* (31)	.4652	1934	L
	Lefty O'Doul* (32)	.4652	1929	L
94.	Jimmie Foxx+ (31)	.4642	1939	R
95.	Ed Delahanty+ (31)	.4641	1899	R
	Tris Speaker+* (24)	.4641	1912	L
97.	Pete Browning (26)	.4639	1887	R
	Mickey Mantle+# (24)	.4639	1956	B
99.	Willie Keeler+* (25)	.4637	1897	L
	Edgar Martinez (33)	.4637	1996	R
Rank	Player (age that year)	On-base %	Year	Bats
	Ted Williams+* (32)	.4637	1951	L
102.	Todd Helton* (26)	.4634	2000	L
103.	Bob Caruthers* (23)	.4633	1887	L
104.	Cupid Childs* (25)	.4630	1893	L
	Jimmie Foxx+ (21)	.4630	1929	R
	Hughie Jennings+ (28)	.4630	1897	R
	Nap Lajoie+ (26)	.4630	1901	R
	Babe Ruth+* (33)	.4630	1928	L
109.	Jesse Burkett+* (30)	.4625	1899	L
110.	Ross Barnes (26)	.4620	1876	R
	Dan Brouthers+* (31)	.4620	1889	L
	Jimmie Foxx+ (30)	.4620	1938	R
113.	Albert Pujols (28)	.4618	2008	R
114.	Fred Clarke+* (24)	.4617	1897	L
115.	Ty Cobb+* (35)	.4615	1922	L
116.	Eddie Collins+* (38)	.4612	1925	L
	Billy Hamilton+* (31)	.4612	1897	L
118.	Jesse Burkett+* (27)	.4611	1896	L
119.	Wade Boggs+* (29)	.4610	1987	L
120.	Barry Bonds* (31)	.4607	1996	L
Rank	Player (age that year)	On-base %	Year	Bats
	Jimmie Foxx+ (27)	.4607	1935	R
122.	Denny Lyons (24)	.4606	1890	R
123.	Eddie Collins+* (28)	.4605	1915	L
	Paul O'Neill* (31)	.4605	1994	L
125.	Joe Jackson* (23)	.4600	1913	L
126.	Eddie Stanky (33)	.4597	1950	R
127.	Jesse Burkett+* (24)	.4594	1893	L
	Rogers Hornsby+ (33)	.4594	1929	R
129.	John McGraw+* (22)	.4592	1895	L
	Frank Thomas (28)	.4592	1996	R
131.	Mickey Cochrane+* (30)	.4591	1933	L
132.	Pete Browning (29)	.4588	1890	R
	Jack Clark (31)	.4588	1987	R
134.	Rogers Hornsby+ (26)	.4586	1922	R
135.	Barry Bonds* (28)	.4585	1993	L
	Rogers Hornsby+ (27)	.4585	1923	R
	Mel Ott+* (21)	.4585	1930	L
138.	Ted Williams+* (39)	.4584	1958	L
139.	Rogers Hornsby+ (25)	.4583	1921	R
140.	Sam Thompson+* (34)	.4582	1894	L
Rank	Player (age that year)	On-base %	Year	Bats
141.	Larry Walker* (32)	.4581	1999	L
142.	Charlie Gehringer+* (34)	.4580	1937	L
	Todd Helton* (29)	.4580	2003	L
144.	Joe Jackson* (22)	.4577	1912	L
145.	Harry Heilmann+ (30)	.4571	1925	R
146.	Cap Anson+ (42)	.4569	1894	R
147.	Manny Ramirez (28)	.4568	2000	R
148.	Roy Thomas* (25)	.4566	1899	L
149.	Ty Cobb+* (23)	.4564	1910	L
	Babe Ruth+* (24)	.4564	1919	L
151.	Joe Kelley+ (23)	.4562	1895	R
	Bill Lange (24)	.4562	1895	R
153.	Frank Thomas (29)	.4561	1997	R
154.	Tuck Turner# (21)	.4560	1894	B
155.	Barry Bonds* (27)	.4559	1992	L
	Ty Cobb+* (25)	.4559	1912	L
	Joe Sewell+* (24)	.4559	1923	L
158.	Edgar Martinez (34)	.4558	1997	R
	Al Wingo* (27)	.4558	1925	L
160.	Eddie Collins+* (36)	.4553	1923	L
Rank	Player (age that year)	On-base %	Year	Bats
161.	Babe Herman* (27)	.4547	1930	L
162.	George Brett+* (27)	.4544	1980	L
	Hughie Jennings+ (29)	.4544	1898	R
	Frank Thomas (27)	.4544	1995	R
	Hack Wilson+ (30)	.4544	1930	R
166.	Elmer Smith* (28)	.4541	1896	L
167.	Jeff Bagwell (31)	.4540	1999	R
168.	John McGraw+* (20)	.4539	1893	L
	Buddy Myer* (34)	.4539	1938	L
170.	Dale Alexander (29)	.4537	1932	R
	George Grantham* (29)	.4537	1929	L
172.	Rico Carty (30)	.4536	1970	R
	Tony Gwynn+* (34)	.4536	1994	L
174.	Roy Thomas* (29)	.4532	1903	L
175.	Joe Cunningham* (27)	.4531	1959	L
176.	Lou Boudreau+ (30)	.4530	1948	R
	Lefty O'Doul* (33)	.4530	1930	L
	Arky Vaughan+* (24)	.4530	1936	L
179.	Frank Thomas (23)	.4529	1991	R
180.	Wade Boggs+* (28)	.4528	1986	L
Rank	Player (age that year)	On-base %	Year	Bats
	Billy Hamilton+* (25)	.4528	1891	L
182.	Ed Delahanty+ (34)	.4527	1902	R
183.	Willie McCovey+* (31)	.4526	1969	L
184.	Ty Cobb+* (34)	.4523	1921	L
185.	Ralph Kiner+ (28)	.4522	1951	R
186.	Mickey Cochrane+* (32)	.4520	1935	L
187.	Roy Cullenbine# (27)	.4519	1941	B
	Carl Yastrzemski+* (30)	.4519	1970	L
189.	Ty Cobb+* (29)	.4518	1916	L
	George Selkirk* (31)	.4518	1939	L
	Larry Walker* (30)	.4518	1997	L
192.	Mike Tiernan* (29)	.4517	1896	L
193.	Eddie Collins+* (27)	.4515	1914	L
	Bill Terry+* (31)	.4515	1930	L
195.	John McGraw+* (21)	.4513	1894	L
196.	Lou Gehrig+* (29)	.4512	1932	L
197.	Jeff Bagwell (26)	.4509	1994	R
	Eddie Collins+* (24)	.4509	1911	L
199.	Ferris Fain* (30)	.4508	1951	L
	Roy Thomas* (26)	.4508	1900	L
Rank	Player (age that year)	On-base %	Year	Bats
201.	Jeff Bagwell (28)	.4506	1996	R
	Ed Morgan (27)	.4506	1931	R
203.	Harry Rice* (23)	.4504	1925	L
204.	Wade Boggs+* (27)	.4503	1985	L
	Eddie Collins+* (25)	.4503	1912	L
	Roger Connor+* (32)	.4503	1890	L
	Brian Giles* (31)	.4503	2002	L
208.	Stan Musial+* (27)	.4502	1948	L
	Tommy Tucker# (25)	.4502	1889	B
210.	Lance Berkman# (28)	.4498	2004	B
	Manny Ramirez (30)	.4498	2002	R
212.	Frank Chance+ (28)	.4497	1905	R
	Jim Thome* (25)	.4497	1996	L
214.	Charlie Gehringer+* (31)	.4495	1934	L
215.	Phil Cavarretta* (28)	.4494	1945	L
216.	Jimmie Foxx+ (25)	.4492	1933	R
	Billy Hamilton+* (34)	.4492	1900	L
	George Sisler+* (27)	.4492	1920	L
	Larry Walker* (34)	.4492	2001	L
220.	Stan Musial+* (30)	.4490	1951	L
Rank	Player (age that year)	On-base %	Year	Bats
221.	Rod Carew+* (31)	.4488	1977	L
	Mel Ott+* (20)	.4488	1929	L
223.	Mel Ott+* (30)	.4487	1939	L
224.	Richie Ashburn+* (28)	.4486	1955	L
225.	Jimmie Foxx+ (26)	.4485	1934	R
226.	Rogers Hornsby+ (31)	.4483	1927	R
227.	Mickey Mantle+# (29)	.4481	1961	B
228.	Babe Ruth+* (39)	.4480	1934	L
229.	Joe DiMaggio+ (24)	.4479	1939	R
	Chuck Knoblauch (27)	.4479	1996	R
231.	Fred Dunlap (25)	.4477	1884	R
	Mel Ott+* (27)	.4477	1936	L
233.	Bob Caruthers* (22)	.4476	1886	L
234.	Piggy Ward# (27)	.4475	1894	B
235.	Jesse Burkett+* (25)	.4474	1894	L
	Edgar Martinez (36)	.4474	1999	R
237.	John Olerud* (29)	.4473	1998	L
238.	Benny Kauff* (24)	.4470	1914	L
239.	Tony Gwynn+* (27)	.4469	1987	L
240.	Charlie Keller* (22)	.4468	1939	L
Rank	Player (age that year)	On-base %	Year	Bats
241.	Joe Kelley+ (25)	.4467	1897	R
	Jake Stenzel (28)	.4467	1895	R
	Mike Tiernan* (22)	.4467	1889	L
244.	Barry Bonds* (32)	.4464	1997	L
245.	Dolph Camilli* (30)	.4462	1937	L
246.	Jack Clements* (30)	.4460	1895	L
	Jack Fournier* (35)	.4460	1925	L
	Benny Kauff* (25)	.4460	1915	L
249.	Paul Waner+* (25)	.4459	1928	L
250.	Max Bishop* (33)	.4458	1933	L
251.	Bobby Abreu* (25)	.4456	1999	L
	Lou Gehrig+* (28)	.4456	1931	L
	Paul Waner+* (33)	.4456	1936	L
254.	Jim Thome* (31)	.4454	2002	L
255.	David Ortiz* (31)	.4453	2007	L
	Yank Robinson (27)	.4453	1887	R
257.	Denny Lyons (25)	.4452	1891	R
258.	Nap Lajoie+ (35)	.4451	1910	R
259.	Dan Brouthers+* (28)	.4450	1886	L
	Harry Heilmann+ (31)	.4450	1926	R
Rank	Player (age that year)	On-base %	Year	Bats
261.	Todd Helton* (31)	.4448	2005	L
	Sherry Magee (25)	.4448	1910	R
263.	Larry Walker* (31)	.4447	1998	L
264.	Riggs Stephenson (31)	.4446	1929	R
265.	Harry Heilmann+ (26)	.4444	1921	R
	Hughie Jennings+ (26)	.4444	1895	R
	Chief Roseman (34)	.4444	1890	R
268.	Wade Boggs+* (25)	.4443	1983	L
269.	Ty Cobb+* (30)	.4441	1917	L
	Bill Dahlen (24)	.4441	1894	R
	Joe Morgan+* (32)	.4441	1976	L
272.	Al Simmons+ (29)	.4440	1931	R
273.	Joe Jackson* (30)	.4439	1920	L
	Johnny Mize+* (26)	.4439	1939	L
275.	Mike Griffin* (30)	.4437	1895	L
276.	Willie McCovey+* (32)	.4436	1970	L
	Ed Swartwood* (31)	.4436	1890	L
278.	Ed Delahanty+ (29)	.4435	1897	R
279.	Tony Phillips# (34)	.4433	1993	B
280.	Mickey Mantle+# (26)	.4432	1958	B
Rank	Player (age that year)	On-base %	Year	Bats
281.	Cap Anson+ (38)	.4430	1890	R
	Roger Bresnahan+ (24)	.4430	1903	R
	Cupid Childs* (24)	.4430	1892	L
284.	Ray Grimes (28)	.4424	1922	R
	Ted Williams+* (21)	.4424	1940	L
286.	Manny Ramirez (27)	.4422	1999	R
287.	Max Bishop* (27)	.4419	1927	L
288.	Goose Goslin+* (27)	.4418	1928	L
	Bill Joyce* (29)	.4418	1895	L
	Art Wilson (29)	.4418	1915	R
291.	Cap Anson+ (29)	.4417	1881	R
	Babe Ruth+* (38)	.4417	1933	L
293.	Larry Doby+* (26)	.4415	1950	L
	Mel Ott+* (29)	.4415	1938	L
295.	Johnny Bassler* (29)	.4414	1924	L
	Eddie Collins+* (37)	.4414	1924	L
297.	Chief Meyers (31)	.4413	1912	R
298.	Richie Ashburn+* (27)	.4412	1954	L
299.	Jake Stenzel (27)	.4411	1894	R
300.	Bill Joyce* (31)	.4410	1897	L
Rank	Player (age that year)	On-base %	Year	Bats
301.	Eddie Collins+* (26)	.4409	1913	L
	Eddie Collins+* (39)	.4409	1926	L
	Tris Speaker+* (25)	.4409	1913	L
304.	Elmer Flick+* (24)	.4408	1900	L
	Chipper Jones# (27)	.4408	1999	B
306.	Dolph Camilli* (29)	.4407	1936	L
307.	Ross Youngs+* (27)	.4406	1924	L
308.	Jason Giambi* (34)	.4404	2005	L
	Stan Musial+* (23)	.4404	1944	L
	Eddie Yost (23)	.4404	1950	R
311.	Jesse Burkett+* (32)	.4403	1901	L
312.	Richie Ashburn+* (31)	.4401	1958	L
	Bob Johnson (33)	.4401	1939	R
314.	Barry Bonds* (35)	.4399	2000	L
	Jimmie Foxx+ (28)	.4399	1936	R
	Buddy Myer* (31)	.4399	1935	L
317.	Ty Cobb+* (31)	.4397	1918	L
	Jackie Robinson+ (33)	.4397	1952	R
319.	Joe DiMaggio+ (26)	.4396	1941	R
	Fred Snodgrass (22)	.4396	1910	R
Rank	Player (age that year)	On-base %	Year	Bats
321.	Ty Cobb+* (40)	.4395	1927	L
322.	Albert Pujols (23)	.4394	2003	R
323.	Rickey Henderson (31)	.4392	1990	R
	Tris Speaker+* (33)	.4392	1921	L
325.	Manny Ramirez (34)	.4391	2006	R
326.	Luke Appling+ (42)	.4388	1949	R
	Frank Thomas (24)	.4388	1992	R
328.	Travis Hafner* (29)	.4387	2006	L
	Ken Williams* (33)	.4387	1923	L
330.	Frank Chance+ (26)	.4386	1903	R
	Bob O'Farrell (25)	.4386	1922	R
332.	Albert Belle (27)	.4384	1994	R
333.	Eddie Collins+* (33)	.4383	1920	L
	Stan Musial+* (28)	.4383	1949	L
335.	Earl Averill+* (34)	.4382	1936	L
	Barry Bonds* (33)	.4382	1998	L
337.	Jim Thome* (24)	.4381	1995	L
338.	Hank Greenberg+ (27)	.4380	1938	R
339.	Kiki Cuyler+ (30)	.4379	1929	R
	Ferris Fain* (31)	.4379	1952	L
Rank	Player (age that year)	On-base %	Year	Bats
	Gary Sheffield (31)	.4379	2000	R
342.	Sam Crawford+* (31)	.4378	1911	L
	Ken Singleton# (30)	.4378	1977	B
344.	Bill Dahlen (26)	.4377	1896	R
345.	Paul Molitor+ (30)	.4376	1987	R
346.	Derek Jeter (25)	.4375	1999	R
347.	Luke Appling+ (28)	.4374	1935	R
	Johnny Pesky* (30)	.4374	1950	L
	Sammy Sosa (32)	.4374	2001	R
350.	Paul Waner+* (24)	.4373	1927	L
351.	Stan Musial+* (29)	.4372	1950	L
352.	Roy Thomas* (27)	.4371	1901	L
353.	Stan Musial+* (32)	.4370	1953	L
354.	Elmer Smith* (26)	.4365	1894	L
355.	J.D. Drew* (28)	.4363	2004	L
	Hank Greenberg+ (26)	.4363	1937	R
	Chuck Klein+* (25)	.4363	1930	L
358.	Milton Bradley# (30)	.4362	2008	B
	Harry Walker* (30)	.4362	1947	L
	Ted Williams+* (20)	.4362	1939	L
Rank	Player (age that year)	On-base %	Year	Bats
	Jimmy Wynn (27)	.4362	1969	R
362.	George Brett+* (32)	.4361	1985	L
	Al Simmons+ (25)	.4361	1927	R
364.	Wally Schang# (29)	.4360	1919	B
365.	Babe Herman* (26)	.4359	1929	L
366.	Bob Nieman (29)	.4357	1956	R
	Eddie Stanky (29)	.4357	1946	R
368.	Frank Thomas (32)	.4356	2000	R
369.	Tom Daly# (28)	.4355	1894	B
	Mike Schmidt+ (31)	.4355	1981	R
	Cy Williams* (37)	.4355	1925	L
372.	Jason Giambi* (31)	.4354	2002	L
373.	Max Bishop* (28)	.4353	1928	L
	George Harper* (35)	.4353	1927	L
375.	Eddie Yost (32)	.4352	1959	R
376.	George Davis+# (23)	.4351	1894	B
377.	Chipper Jones# (30)	.4350	2002	B
	Elmer Smith* (25)	.4350	1893	L
379.	Roger Connor+* (27)	.4348	1885	L
380.	Bernie Williams# (30)	.4347	1999	B
Rank	Player (age that year)	On-base %	Year	Bats
381.	Cupid Childs* (29)	.4346	1897	L
382.	Wally Moon* (31)	.4345	1961	L
383.	Cupid Childs* (22)	.4343	1890	L
	Stan Musial+* (25)	.4343	1946	L
385.	Dixie Walker* (33)	.4342	1944	L
386.	Nomar Garciaparra (26)	.4341	2000	R
	George Gore* (29)	.4341	1886	L
388.	Todd Helton* (33)	.4340	2007	L
	Yank Robinson (30)	.4340	1890	R
	Jimmy Sheckard* (32)	.4340	1911	L
	Honus Wagner+ (26)	.4340	1900	R
392.	Babe Ruth+* (27)	.4338	1922	L
393.	Magglio Ordonez (33)	.4336	2007	R
394.	Hank Greenberg+ (29)	.4333	1940	R
395.	Cap Anson+ (34)	.4329	1886	R
	Wade Boggs+* (36)	.4329	1994	L
	Pat Collins (29)	.4329	1926	R
398.	Rod Carew+* (28)	.4328	1974	L
	Arky Vaughan+* (26)	.4328	1938	L
400.	Miller Huggins+# (35)	.4324	1913	B
Rank	Player (age that year)	On-base %	Year	Bats
	Larry Rosenthal* (30)	.4324	1940	L
	Tris Speaker+* (36)	.4324	1924	L
403.	Jackie Robinson+ (30)	.4323	1949	R
404.	George Gore* (33)	.4322	1890	L
	Harry Heilmann+ (27)	.4322	1922	R
	Tris Speaker+* (29)	.4322	1917	L
407.	Jeff Burroughs (27)	.4321	1978	R
408.	Willie Keeler+* (24)	.4320	1896	L
	Stan Musial+* (31)	.4320	1952	L
410.	Rickey Henderson (34)	.4319	1993	R
411.	Ralph Kiner+ (26)	.4318	1949	R
412.	Dan Brouthers+* (34)	.4317	1892	L
	Brian Giles* (29)	.4317	2000	L
414.	Toby Harrah (36)	.4316	1985	R
	Todd Helton* (27)	.4316	2001	L
416.	Barry Bonds* (30)	.4315	1995	L
417.	Johnny Evers+* (30)	.4314	1912	L
418.	Max Bishop* (26)	.4313	1926	L
	Charlie Gehringer+* (33)	.4313	1936	L
	Mike Piazza (28)	.4313	1997	R
Rank	Player (age that year)	On-base %	Year	Bats
421.	Arky Vaughan+* (22)	.4312	1934	L
422.	Bob Johnson (38)	.4311	1944	R
423.	Rogers Hornsby+ (24)	.4310	1920	R
424.	Lou Gehrig+* (26)	.4309	1929	L
425.	Mickey Mantle+# (23)	.4308	1955	B
426.	Will Clark* (30)	.4307	1994	L
427.	Ty Cobb+* (22)	.4306	1909	L
	Albert Pujols (26)	.4306	2006	R
429.	Miguel Cabrera (23)	.4305	2006	R
430.	Tommy McCarthy+ (26)	.4304	1890	R
431.	Billy Hamilton+* (24)	.4303	1890	L
	Babe Ruth+* (34)	.4303	1929	L
	Sam Thompson+* (35)	.4303	1895	L
434.	Lance Berkman# (25)	.4302	2001	B
435.	Woody English (24)	.4301	1930	R
	Ferris Fain* (29)	.4301	1950	L
	John Kruk* (32)	.4301	1993	L
438.	Luke Appling+ (32)	.4300	1939	R
	Albert Pujols (25)	.4300	2005	R
440.	Wade Boggs+* (31)	.4299	1989	L
Rank	Player (age that year)	On-base %	Year	Bats
	Pete Browning (21)	.4299	1882	R
442.	Lu Blue# (34)	.4298	1931	B
443.	Manny Ramirez (36)	.4297	2008	R
444.	Elmer Flick+* (22)	.4296	1898	L
445.	Jesse Burkett+* (31)	.4295	1900	L
	Tony Lazzeri+ (25)	.4295	1929	R
	Denny Lyons (27)	.4295	1893	R
	Tim Salmon (26)	.4295	1995	R
449.	Earl Averill+* (36)	.4293	1938	L
	Joe Mauer* (23)	.4293	2006	L
451.	Eddie Joost (33)	.4292	1949	R
	Jackie Robinson+ (32)	.4292	1951	R
453.	Ty Cobb+* (32)	.4291	1919	L
	Chili Davis# (35)	.4291	1995	B
	Jack Fournier* (25)	.4291	1915	L
	Tommy McCarthy+ (29)	.4291	1893	R
457.	Jimmie Foxx+ (22)	.4290	1930	R
	Kevin Mitchell (32)	.4290	1994	R
	Tim Raines# (27)	.4290	1987	B
	Cy Seymour* (32)	.4290	1905	L
Rank	Player (age that year)	On-base %	Year	Bats
	Paul Waner+* (31)	.4290	1934	L
462.	Walton Cruise* (31)	.4289	1921	L
463.	Todd Helton* (28)	.4288	2002	L
	Ken Williams* (31)	.4288	1921	L
465.	Doc Crandall (26)	.4286	1914	R
	Luis Gonzalez* (33)	.4286	2001	L
	Willie Keeler+* (23)	.4286	1895	L
	Edgar Martinez (35)	.4286	1998	R
	Albert Pujols (27)	.4286	2007	R
470.	Jack Fournier* (34)	.4284	1924	L
	Stan Musial+* (33)	.4284	1954	L
	Pete Rose# (28)	.4284	1969	B
473.	Larry Doby+* (27)	.4283	1951	L
474.	Kiki Cuyler+ (31)	.4282	1930	R
475.	Joe Cronin+ (31)	.4281	1938	R
	Charlie Gehringer+* (37)	.4281	1940	L
	Nick Johnson* (27)	.4281	2006	L
	Zack Wheat+* (36)	.4281	1924	L
479.	Bill Dickey+* (29)	.4280	1936	L
	Wally Schang# (31)	.4280	1921	B
Rank	Player (age that year)	On-base %	Year	Bats
	Gary Sheffield (29)	.4280	1998	R
482.	Harry Heilmann+ (29)	.4279	1924	R
483.	Bobby Abreu* (30)	.4278	2004	L
	Mickey Cochrane+* (31)	.4278	1934	L
485.	Paul Waner+* (27)	.4277	1930	L
486.	Henry Larkin (29)	.4276	1889	R
487.	Willie Keeler+* (22)	.4275	1894	L
488.	Harmon Killebrew+ (33)	.4274	1969	R
	John Olerud* (30)	.4274	1999	L
490.	Mike Tiernan* (28)	.4273	1895	L
491.	Ed Delahanty+ (33)	.4272	1901	R
492.	Tony Fernandez# (37)	.4271	1999	B
	Manny Ramirez (31)	.4271	2003	R
494.	Lew Fonseca (30)	.4270	1929	R
	Fielder Jones* (24)	.4270	1896	L
	Bobby Murcer* (25)	.4270	1971	L
	Willie Randolph (25)	.4270	1980	R
	Ross Youngs+* (23)	.4270	1920	L
499.	Brian Giles* (32)	.4269	2003	L
	Chipper Jones# (29)	.4269	2001	B
	David Justice* (28)	.4269	1994	L
	Reggie Smith# (32)	.4269	1977	B
	Honus Wagner+ (31)	.4269	1905	R