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 Top-Tens Yearly League

+ - Indicates Hall of Famer. Bold indicates active player.

Statistic Description: (H + BB + HBP)/(At Bats + BB + HBP + SF) For recent years, leaders need 3.1 PA per team game played

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.

For batting rate stats, generally a minimum of 3.1 Plate Appearances/G, 1.0 IP/G, 0.67 Gm and Chances/Team Game (fielding), 0.2 SB att/Team Game (catchers), and 0.1 SB att/Team Game (baserunners only since 1951), and 0.1 decision/G for single-season leaderboards generally needed for rate statistics. For pitcher fielding the minimums are reduced by a third. For LF, CF, RF fielding stats, we only have reliable data since 1954, so all leaders are since 1954. 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)	.5319	1920	L
7.	Barry Bonds (38)	.5291	2003	L
8.	Ted Williams+ (38)	.5256	1957	L
9.	Billy Hamilton+ (28)	.5209	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)	.5017	1894	R
19.	Ed Delahanty+ (27)	.5000	1895	R
20.	Ted Williams+ (23)	.4993	1942	L
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 (26)	.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)	.4863	1915	L
38.	Mickey Mantle+ (30)	.4861	1962	B
39.	Babe Ruth+ (32)	.4860	1927	L
40.	Fred Carroll (24)	.4855	1889	R
41.	Tris Speaker+ (32)	.4832	1920	L
42.	King Kelly+ (28)	.4831	1886	R
43.	Jesse Burkett+ (26)	.4819	1895	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.	Billy Hamilton+ (30)	.4780	1896	L
50.	Lou Gehrig+ (33)	.4777	1936	L
Rank	Player (age that year)	On-Base%	Year	Bats
51.	Jason Giambi (30)	.4769	2001	L
52.	Jason Giambi (29)	.4759	2000	L
53.	Wade Boggs+ (30)	.4757	1988	L
54.	Cupid Childs (26)	.4755	1894	L
55.	John McGraw+ (25)	.4752	1898	L
56.	Ed Delahanty+ (26)	.4751	1894	R
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
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 (28)	.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)	.4695	1896	R
74.	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.	Shoeless Joe Jackson (23)	.4677	1911	L
80.	Lou Gehrig+ (25)	.4675	1928	L
81.	Ty Cobb+ (26)	.4673	1913	L
82.	Mark McGwire (32)	.4672	1996	R
83.	George Sisler+ (29)	.4671	1922	L
84.	Cupid Childs (28)	.4668	1896	L
85.	Ty Cobb+ (24)	.4666	1911	L
86.	Joe Morgan+ (31)	.4664	1975	L
87.	Mike Griffin (29)	.4663	1894	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.	Sam Thompson+ (34)	.4645	1894	L
95.	Jimmie Foxx+ (31)	.4642	1939	R
96.	Ed Delahanty+ (31)	.4641	1899	R
	Tris Speaker+ (24)	.4641	1912	L
98.	Pete Browning (26)	.4639	1887	R
	Mickey Mantle+ (24)	.4639	1956	B
100.	Willie Keeler+ (25)	.4637	1897	L
Rank	Player (age that year)	On-Base%	Year	Bats
	Edgar Martinez (33)	.4637	1996	R
	Ted Williams+ (32)	.4637	1951	L
103.	Todd Helton (26)	.4634	2000	L
104.	Bob Caruthers (23)	.4633	1887	L
105.	Cupid Childs (25)	.4631	1893	L
106.	Jimmie Foxx+ (21)	.4630	1929	R
	Hughie Jennings+ (28)	.4630	1897	R
	Nap Lajoie+ (26)	.4630	1901	R
	Babe Ruth+ (33)	.4630	1928	L
110.	Jesse Burkett+ (30)	.4625	1899	L
111.	Ross Barnes (26)	.4620	1876	R
	Jimmie Foxx+ (30)	.4620	1938	R
113.	Dan Brouthers+ (31)	.4619	1889	L
114.	Albert Pujols (28)	.4618	2008	R
115.	Ty Cobb+ (35)	.4615	1922	L
116.	Fred Clarke+ (24)	.4614	1897	L
117.	Eddie Collins+ (38)	.4612	1925	L
	Billy Hamilton+ (31)	.4612	1897	L
119.	Jesse Burkett+ (27)	.4611	1896	L
120.	Wade Boggs+ (29)	.4610	1987	L
121.	Barry Bonds (31)	.4607	1996	L
	Jimmie Foxx+ (27)	.4607	1935	R
123.	Denny Lyons (24)	.4606	1890	R
124.	Eddie Collins+ (28)	.4605	1915	L
	Paul O'Neill (31)	.4605	1994	L
126.	Shoeless Joe Jackson (25)	.4600	1913	L
127.	Eddie Stanky (34)	.4597	1950	R
128.	Jesse Burkett+ (24)	.4594	1893	L
	Rogers Hornsby+ (33)	.4594	1929	R
130.	John McGraw+ (22)	.4592	1895	L
	Frank Thomas (28)	.4592	1996	R
132.	Mickey Cochrane+ (30)	.4591	1933	L
133.	Pete Browning (29)	.4588	1890	R
	Jack Clark (31)	.4588	1987	R
135.	Rogers Hornsby+ (26)	.4586	1922	R
136.	Barry Bonds (28)	.4585	1993	L
	Rogers Hornsby+ (27)	.4585	1923	R
	Mel Ott+ (21)	.4585	1930	L
139.	Tuck Turner (27)	.4584	1894	B
	Ted Williams+ (39)	.4584	1958	L
141.	Rogers Hornsby+ (25)	.4583	1921	R
142.	Larry Walker (32)	.4581	1999	L
143.	Charlie Gehringer+ (34)	.4580	1937	L
	Todd Helton (29)	.4580	2003	L
145.	Shoeless Joe Jackson (24)	.4577	1912	L
146.	Cap Anson+ (42)	.4574	1894	R
147.	Harry Heilmann+ (30)	.4571	1925	R
148.	Manny Ramirez (28)	.4568	2000	R
149.	Roy Thomas (25)	.4566	1899	L
150.	Ty Cobb+ (23)	.4564	1910	L
Rank	Player (age that year)	On-Base%	Year	Bats
	Babe Ruth+ (24)	.4564	1919	L
152.	Joe Kelley+ (23)	.4562	1895	R
	Bill Lange (24)	.4562	1895	R
154.	Frank Thomas (29)	.4561	1997	R
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
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.	Mike 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
	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)	.4521	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
202.	Ed Morgan (27)	.4505	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)	.4493	1933	R
	Larry Walker (34)	.4493	2001	L
218.	Billy Hamilton+ (34)	.4492	1900	L
	George Sisler+ (27)	.4492	1920	L
220.	Stan Musial+ (30)	.4490	1951	L
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.	Miguel Cabrera (28)	.4477	2011	R
	Fred Dunlap (25)	.4477	1884	R
	Mel Ott+ (27)	.4477	1936	L
234.	Bob Caruthers (22)	.4476	1886	L
235.	Jesse Burkett+ (25)	.4474	1894	L
	Edgar Martinez (36)	.4474	1999	R
237.	Jose Bautista (30)	.4473	2011	R
	John Olerud (29)	.4473	1998	L
239.	Benny Kauff (24)	.4470	1914	L
240.	Tony Gwynn+ (27)	.4469	1987	L
241.	Charlie Keller (22)	.4468	1939	L
242.	Joe Kelley+ (25)	.4467	1897	R
	Mike Tiernan (22)	.4467	1889	L
244.	Barry Bonds (32)	.4464	1997	L
245.	Dolph Camilli (30)	.4462	1937	L
	Piggy Ward (27)	.4462	1894	B
247.	Jack Clements (30)	.4460	1895	L
	Jack Fournier (35)	.4460	1925	L
	Benny Kauff (25)	.4460	1915	L
250.	Paul Waner+ (25)	.4459	1928	L
Rank	Player (age that year)	On-Base%	Year	Bats
251.	Max Bishop (33)	.4458	1933	L
252.	Lou Gehrig+ (28)	.4457	1931	L
253.	Bobby Abreu (25)	.4456	1999	L
	Paul Waner+ (33)	.4456	1936	L
255.	Bill Dahlen (24)	.4454	1894	R
	Jim Thome (31)	.4454	2002	L
257.	David Ortiz (31)	.4453	2007	L
	Yank Robinson (27)	.4453	1887	R
259.	Denny Lyons (25)	.4452	1891	R
260.	Nap Lajoie+ (35)	.4451	1910	R
261.	Dan Brouthers+ (28)	.4450	1886	L
	Harry Heilmann+ (31)	.4450	1926	R
263.	Todd Helton (31)	.4448	2005	L
	Sherry Magee (25)	.4448	1910	R
265.	Larry Walker (31)	.4447	1998	L
266.	Riggs Stephenson (31)	.4446	1929	R
267.	Harry Heilmann+ (26)	.4444	1921	R
	Hughie Jennings+ (26)	.4444	1895	R
	Chief Roseman (33)	.4444	1890	R
270.	Wade Boggs+ (25)	.4443	1983	L
271.	Ty Cobb+ (30)	.4441	1917	L
	Joe Morgan+ (32)	.4441	1976	L
273.	Al Simmons+ (29)	.4440	1931	R
274.	Shoeless Joe Jackson (32)	.4439	1920	L
	Joe Mauer (26)	.4439	2009	L
	Johnny Mize+ (26)	.4439	1939	L
277.	Jake Stenzel (28)	.4437	1895	R
278.	Willie McCovey+ (32)	.4436	1970	L
	Ed Swartwood (31)	.4436	1890	L
280.	Ed Delahanty+ (29)	.4435	1897	R
	Bill Joyce (29)	.4435	1897	L
282.	Mickey Mantle+ (26)	.4433	1958	B
	Tony Phillips (34)	.4433	1993	B
284.	Cap Anson+ (38)	.4430	1890	R
	Roger Bresnahan+ (24)	.4430	1903	R
	Cupid Childs (24)	.4430	1892	L
287.	Albert Pujols (29)	.4429	2009	R
288.	Ray Grimes (28)	.4424	1922	R
	Ted Williams+ (21)	.4424	1940	L
290.	Manny Ramirez (27)	.4422	1999	R
291.	Max Bishop (27)	.4419	1927	L
292.	Goose Goslin+ (27)	.4418	1928	L
	Mike Griffin (30)	.4418	1895	L
	Art Wilson (29)	.4418	1915	R
295.	Cap Anson+ (29)	.4417	1881	R
	Babe Ruth+ (38)	.4417	1933	L
297.	Larry Doby+ (26)	.4415	1950	L
	Mel Ott+ (29)	.4415	1938	L
299.	Johnny Bassler (29)	.4414	1924	L
	Eddie Collins+ (37)	.4414	1924	L
Rank	Player (age that year)	On-Base%	Year	Bats
301.	Chief Meyers (31)	.4413	1912	R
302.	Richie Ashburn+ (27)	.4412	1954	L
303.	Eddie Collins+ (26)	.4409	1913	L
	Eddie Collins+ (39)	.4409	1926	L
	Tris Speaker+ (25)	.4409	1913	L
306.	Elmer Flick+ (24)	.4408	1900	L
	Chipper Jones (27)	.4408	1999	B
308.	Dolph Camilli (29)	.4407	1936	L
309.	Ross Youngs+ (27)	.4406	1924	L
310.	Mike Smith (26)	.4405	1894	L
311.	Jason Giambi (34)	.4404	2005	L
	Stan Musial+ (23)	.4404	1944	L
	Eddie Yost (23)	.4404	1950	R
314.	Jesse Burkett+ (32)	.4403	1901	L
315.	Cap Anson+ (37)	.4401	1889	R
	Richie Ashburn+ (31)	.4401	1958	L
	Bob Johnson (33)	.4401	1939	R
318.	Barry Bonds (35)	.4399	2000	L
	Jimmie Foxx+ (28)	.4399	1936	R
	Buddy Myer (31)	.4399	1935	L
	Jake Stenzel (27)	.4399	1894	R
322.	Ty Cobb+ (31)	.4397	1918	L
	Bill Joyce (27)	.4397	1895	L
	Jackie Robinson+ (33)	.4397	1952	R
325.	Joe DiMaggio+ (26)	.4396	1941	R
	Fred Snodgrass (22)	.4396	1910	R
327.	Ty Cobb+ (40)	.4395	1927	L
328.	Albert Pujols (23)	.4394	2003	R
329.	Rickey Henderson+ (31)	.4392	1990	R
	Tris Speaker+ (33)	.4392	1921	L
331.	Manny Ramirez (34)	.4391	2006	R
332.	Luke Appling+ (42)	.4388	1949	R
	Frank Thomas (24)	.4388	1992	R
334.	Travis Hafner (29)	.4387	2006	L
	Ken Williams (33)	.4387	1923	L
336.	Frank Chance+ (26)	.4386	1903	R
	Bob O'Farrell (25)	.4386	1922	R
338.	Albert Belle (27)	.4384	1994	R
339.	Max Bishop (28)	.4383	1928	L
	Eddie Collins+ (33)	.4383	1920	L
	Stan Musial+ (28)	.4383	1949	L
342.	Earl Averill+ (34)	.4382	1936	L
	Barry Bonds (33)	.4382	1998	L
344.	Hank Greenberg+ (27)	.4381	1938	R
	Jim Thome (24)	.4381	1995	L
346.	Kiki Cuyler+ (30)	.4379	1929	R
	Ferris Fain (31)	.4379	1952	L
	Gary Sheffield (31)	.4379	2000	R
349.	Sam Crawford+ (31)	.4378	1911	L
	Ken Singleton (30)	.4378	1977	B
Rank	Player (age that year)	On-Base%	Year	Bats
351.	Bill Dahlen (26)	.4377	1896	R
352.	Paul Molitor+ (30)	.4376	1987	R
353.	Derek Jeter (25)	.4375	1999	R
354.	Luke Appling+ (28)	.4374	1935	R
	Johnny Pesky (31)	.4374	1950	L
	Sammy Sosa (32)	.4374	2001	R
357.	Paul Waner+ (24)	.4373	1927	L
358.	Stan Musial+ (29)	.4372	1950	L
359.	Roy Thomas (27)	.4371	1901	L
360.	Stan Musial+ (32)	.4370	1953	L
361.	J.D. Drew (28)	.4363	2004	L
	Hank Greenberg+ (26)	.4363	1937	R
	Chuck Klein+ (25)	.4363	1930	L
	Jim Wynn (27)	.4363	1969	R
365.	Harry Walker (30)	.4362	1947	L
	Ted Williams+ (20)	.4362	1939	L
367.	Milton Bradley (30)	.4361	2008	B
	George Brett+ (32)	.4361	1985	L
	Al Simmons+ (25)	.4361	1927	R
370.	Wally Schang (29)	.4360	1919	B
371.	Babe Herman (26)	.4359	1929	L
372.	Bob Nieman (29)	.4357	1956	R
	Eddie Stanky (30)	.4357	1946	R
374.	Frank Thomas (32)	.4356	2000	R
375.	Mike Schmidt+ (31)	.4355	1981	R
	Cy Williams (37)	.4355	1925	L
377.	Jason Giambi (31)	.4354	2002	L
378.	George Harper (35)	.4353	1927	L
379.	Eddie Yost (32)	.4352	1959	R
380.	Chipper Jones (30)	.4350	2002	B
	Mike Smith (25)	.4350	1893	L
382.	Roger Connor+ (27)	.4348	1885	L
383.	Bernie Williams (30)	.4347	1999	B
384.	Cupid Childs (29)	.4346	1897	L
385.	George Davis+ (23)	.4345	1894	B
	Wally Moon (31)	.4345	1961	L
387.	Cupid Childs (22)	.4343	1890	L
	Stan Musial+ (25)	.4343	1946	L
389.	Dixie Walker (33)	.4342	1944	L
390.	Nomar Garciaparra (26)	.4341	2000	R
	George Gore (32)	.4341	1886	L
	Yank Robinson (30)	.4341	1890	R
393.	Todd Helton (33)	.4340	2007	L
	Jimmy Sheckard (32)	.4340	1911	L
	Honus Wagner+ (26)	.4340	1900	R
396.	Babe Ruth+ (27)	.4338	1922	L
397.	Magglio Ordonez (33)	.4336	2007	R
398.	Hank Greenberg+ (29)	.4333	1940	R
399.	Cap Anson+ (34)	.4329	1886	R
	Wade Boggs+ (36)	.4329	1994	L
Rank	Player (age that year)	On-Base%	Year	Bats
	Pat Collins (29)	.4329	1926	R
402.	Rod Carew+ (28)	.4328	1974	L
	Arky Vaughan+ (26)	.4328	1938	L
404.	Tom Daly (28)	.4325	1894	B
405.	Miller Huggins+ (35)	.4324	1913	B
	Larry Rosenthal (30)	.4324	1940	L
	Tris Speaker+ (36)	.4324	1924	L
408.	Jackie Robinson+ (30)	.4323	1949	R
409.	George Gore (36)	.4322	1890	L
	Harry Heilmann+ (27)	.4322	1922	R
	Tris Speaker+ (29)	.4322	1917	L
412.	Jeff Burroughs (27)	.4321	1978	R
413.	Willie Keeler+ (24)	.4320	1896	L
	Stan Musial+ (31)	.4320	1952	L
415.	Rickey Henderson+ (34)	.4319	1993	R
416.	Ralph Kiner+ (26)	.4318	1949	R
417.	Dan Brouthers+ (34)	.4317	1892	L
	Brian Giles (29)	.4317	2000	L
	Todd Helton (27)	.4317	2001	L
420.	Toby Harrah (36)	.4316	1985	R
421.	Barry Bonds (30)	.4315	1995	L
422.	Johnny Evers+ (30)	.4314	1912	L
423.	Max Bishop (26)	.4313	1926	L
	Charlie Gehringer+ (33)	.4313	1936	L
	Mike Piazza (28)	.4313	1997	R
426.	Arky Vaughan+ (22)	.4312	1934	L
427.	Bob Johnson (38)	.4311	1944	R
428.	Rogers Hornsby+ (24)	.4310	1920	R
429.	Lou Gehrig+ (26)	.4309	1929	L
430.	Mickey Mantle+ (23)	.4308	1955	B
431.	Will Clark (30)	.4307	1994	L
432.	Ty Cobb+ (22)	.4306	1909	L
	Albert Pujols (26)	.4306	2006	R
434.	Miguel Cabrera (23)	.4305	2006	R
435.	Tommy McCarthy+ (26)	.4304	1890	R
436.	Billy Hamilton+ (24)	.4303	1890	L
	Babe Ruth+ (34)	.4303	1929	L
	Sam Thompson+ (35)	.4303	1895	L
439.	Lance Berkman (25)	.4302	2001	B
440.	Woody English (24)	.4301	1930	R
	Ferris Fain (29)	.4301	1950	L
	John Kruk (32)	.4301	1993	L
443.	Luke Appling+ (32)	.4300	1939	R
	Albert Pujols (25)	.4300	2005	R
445.	Wade Boggs+ (31)	.4299	1989	L
	Pete Browning (21)	.4299	1882	R
447.	Lu Blue (34)	.4298	1931	B
448.	Manny Ramirez (36)	.4297	2008	R
449.	Elmer Flick+ (22)	.4296	1898	L
450.	Jesse Burkett+ (31)	.4295	1900	L
Rank	Player (age that year)	On-Base%	Year	Bats
	Tony Lazzeri+ (25)	.4295	1929	R
	Denny Lyons (27)	.4295	1893	R
	Tim Salmon (26)	.4295	1995	R
454.	Earl Averill+ (36)	.4293	1938	L
	Joe Mauer (23)	.4293	2006	L
456.	Eddie Joost (33)	.4292	1949	R
	Jackie Robinson+ (32)	.4292	1951	R
458.	Ty Cobb+ (32)	.4291	1919	L
	Chili Davis (35)	.4291	1995	B
	Jack Fournier (25)	.4291	1915	L
	Tommy McCarthy+ (29)	.4291	1893	R
462.	Jimmie Foxx+ (22)	.4290	1930	R
	Tim Raines (27)	.4290	1987	B
	Cy Seymour (32)	.4290	1905	L
	Paul Waner+ (31)	.4290	1934	L
466.	Walton Cruise (31)	.4289	1921	L
	Kevin Mitchell (32)	.4289	1994	R
468.	Todd Helton (28)	.4288	2002	L
	Ken Williams (31)	.4288	1921	L
470.	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
475.	Jack Fournier (34)	.4284	1924	L
	Stan Musial+ (33)	.4284	1954	L
	Pete Rose (28)	.4284	1969	B
478.	Larry Doby+ (27)	.4283	1951	L
479.	Kiki Cuyler+ (31)	.4282	1930	R
480.	Joe Cronin+ (31)	.4281	1938	R
	Charlie Gehringer+ (37)	.4281	1940	L
	Nick Johnson (27)	.4281	2006	L
	Gary Sheffield (29)	.4281	1998	R
	Zack Wheat+ (36)	.4281	1924	L
485.	Bill Dickey+ (29)	.4280	1936	L
	Wally Schang (31)	.4280	1921	B
487.	Harry Heilmann+ (29)	.4279	1924	R
488.	Bobby Abreu (30)	.4278	2004	L
489.	Mickey Cochrane+ (31)	.4277	1934	L
	Paul Waner+ (27)	.4277	1930	L
491.	Henry Larkin (29)	.4276	1889	R
492.	Willie Keeler+ (22)	.4275	1894	L
493.	Harmon Killebrew+ (33)	.4274	1969	R
	John Olerud (30)	.4274	1999	L
495.	Mike Tiernan (28)	.4273	1895	L
496.	Ed Delahanty+ (33)	.4272	1901	R
497.	Tony Fernandez (37)	.4271	1999	B
	Manny Ramirez (31)	.4271	2003	R
	Ross Youngs+ (23)	.4271	1920	L
500.	Lew Fonseca (30)	.4270	1929	R
Rank	Player (age that year)	On-Base%	Year	Bats
	Fielder Jones (24)	.4270	1896	L
	Bobby Murcer (25)	.4270	1971	L
	Willie Randolph (25)	.4270	1980	R

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

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

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Total Zone Rating and Wins above Replacement calculations provided by Sean Smith of BaseballProjection.com.

Full-year historical Major League statistics provided by Pete Palmer and Gary Gillette of 24-7 Baseball.

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