Ted Williams has the highest career on-base percentage, with an on-base percentage of .482.

Interpreted as:

highest obp with a minimum of 3000 PA by a player in history

	NAME	OBP	PA	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	TB	XBH	SH	SF	IBB	GIDP	AVG	SLG	OPS	WRC	WRAA	WOBA	WRC+	BRAA
1	Ted Williams T. Williams	.482	9,791	2,292	7,706	1,798	2,654	525	71	521	1,839	2,021	39	709	24	4	4,884	1,117	5	20	86	197	.344	.634	1.116	2349	1,219.7	.493	188	1,067
2	Babe Ruth B. Ruth	.474	10,617	2,503	8,399	2,174	2,873	506	136	714	2,214	2,062	43	1,330	123		5,793	1,356	113				.342	.690	1.164	2727	1,436.8	.513	197	1,369.6
3	John McGraw J. McGraw	.466	4,940	1,100	3,924	1,024	1,309	121	70	13	462	836	134	155	436		1,609	204	46				.334	.410	.876	1083	354	.433	141	309
4	Billy Hamilton B. Hamilton	.455	7,608	1,594	6,283	1,697	2,164	242	95	40	742	1,189	89	271	914		2,716	377	47				.344	.432	.888	1716	578.6	.433	142	505.5
5	Lou Gehrig L. Gehrig	.447	9,660	2,164	8,001	1,888	2,721	534	163	493	1,995	1,508	45	790	102		5,060	1,190	106			2	.340	.632	1.080	2265	1,046.8	.477	173	980
6	Barry Bonds B. Bonds	.444	12,606	2,986	9,847	2,227	2,935	601	77	762	1,996	2,558	106	1,539	514	141	5,976	1,440	4	91	688	165	.298	.607	1.051	2663	1,143.3	.435	172	1,142
7	Bill Joyce B. Joyce	.435	4,163	906	3,310	822	971	153	106	70	609	721	108	303	266		1,546	329	24				.293	.467	.902	933	302.4	.430	139	267.6
8	Rogers Hornsby R. Hornsby	.434	9,475	2,259	8,173	1,579	2,930	541	169	301	1,584	1,038	48	679	135		4,712	1,011	216				.358	.577	1.010	2018	899	.459	173	863.2
9	Ty Cobb T. Cobb	.433	13,068	3,034	11,434	2,244	4,189	724	295	117	1,933	1,249	94	681	897		5,854	1,136	291				.366	.512	.945	2534	1,093.6	.445	165	975.1
10	Jimmie Foxx J. Foxx	.428	9,670	2,317	8,134	1,751	2,646	458	125	534	1,922	1,452	13	1,311	87		4,956	1,117	71			69	.325	.609	1.038	2135	934.1	.460	158	780.8
11	Tristram Speaker T. Speaker	.428	11,988	2,789	10,195	1,882	3,514	792	222	117	1,531	1,381	103	394	436		5,101	1,131	309				.345	.500	.928	2264	921	.436	157	812.3
12	Eddie Collins E. Collins	.424	12,037	2,826	9,949	1,821	3,315	438	187	47	1,300	1,499	77	468	741		4,268	672	512				.333	.429	.853	2032	693.4	.409	144	619.7
13	Ferris Fain F. Fain	.424	4,904	1,151	3,930	595	1,139	213	30	48	570	904	18	261	46	12	1,556	291	44	8	3	117	.290	.396	.820	777	203	.390	127	161
14	Dan Brouthers D. Brouthers	.423	7,676	1,673	6,711	1,523	2,296	460	205	106	994	840	105	83	256		3,484	771	20				.342	.519	.942	1874	728.6	.436	155	655.7
15	Max Bishop M. Bishop	.423	5,779	1,338	4,494	966	1,216	236	35	41	379	1,156	31	452	40		1,645	312	98				.271	.366	.789	904	176.3	.383	113	104.4
16	Joe Jackson J. Jackson	.423	5,690	1,332	4,981	873	1,772	307	168	54	785	519	59	234	202		2,577	529	131				.356	.517	.940	1090	480.3	.443	165	429.2
17	Mickey Mantle M. Mantle	.421	9,909	2,401	8,102	1,676	2,415	344	72	536	1,509	1,733	13	1,710	153	38	4,511	952	14	47	126	113	.298	.557	.977	1941	840	.428	170	821.8
18	Mickey Cochrane M. Cochrane	.419	6,206	1,482	5,169	1,041	1,652	333	64	119	830	857	29	217	64		2,470	516	151				.320	.478	.897	1128	344.9	.413	132	269.2
19	Frank Thomas F. Thomas	.419	10,074	2,322	8,199	1,494	2,468	495	12	521	1,704	1,667	87	1,397	32	23	4,550	1,028	0	121	168	226	.301	.555	.974	1954	721.1	.416	154	692
20	Juan Soto J. Soto	.418	4,435	1,014	3,559	710	1,005	193	15	218	635	833	17	751	65	24	1,882	426	2	24	72	98	.282	.529	.947	848	317.7	.402	157	309.6
21	Edgar Martinez E. Martinez	.418	8,672	2,055	7,213	1,219	2,247	514	15	309	1,261	1,283	89	1,202	49	30	3,718	838	10	77	113	190	.312	.515	.933	1606	548.2	.405	147	523.9
22	Stan Musial S. Musial	.417	12,712	3,026	10,972	1,949	3,630	725	177	475	1,951	1,599	53	696	78	31	6,134	1,377	35	53	127	243	.331	.559	.976	2474	1,032.5	.435	158	896.7
23	Cupid Childs C. Childs	.416	6,766	1,457	5,622	1,214	1,721	205	101	20	743	991	63	228	269		2,188	326	90				.306	.389	.805	1303	293.6	.396	123	243.3
24	Wade Boggs W. Boggs	.415	10,740	2,439	9,180	1,513	3,010	578	61	118	1,014	1,412	23	745	24	35	4,064	757	29	96	180	236	.328	.443	.858	1746	493.9	.381	132	411
25	Jesse Burkett J. Burkett	.415	9,620	2,067	8,426	1,720	2,850	320	182	75	952	1,029	75	561	389		3,759	577	90				.338	.446	.861	1921	592.9	.411	137	526.7