Before May 30, 2012, Barry Bonds had the most bases on balls, with 2,558 bases on balls.

Interpreted as:

most career walks by a player through may 29, 2012

	NAME	BB	G	AB	R	H	2B	3B	HR	RBI	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Barry Bonds B. Bonds	2,558	2,986	9,847	2,227	2,935	601	77	762	1,996	106	1,539	514	141	12,606	5,976	1,440	4	91	688	165	.298	.444	.607	1.051
2	Rickey Henderson R. Henderson	2,190	3,081	10,961	2,295	3,055	510	66	297	1,115	98	1,694	1,406	335	13,346	4,588	873	30	67	61	172	.279	.401	.419	.820
3	Babe Ruth B. Ruth	2,062	2,504	8,400	2,173	2,873	506	136	714	2,213	44	1,331	123		10,622	5,793	1,356	116				.342	.474	.690	1.164
4	Ted Williams T. Williams	2,018	2,292	7,706	1,799	2,654	525	71	521	1,839	39	709	24	5	9,788	4,884	1,117	5	20	89	201	.344	.482	.634	1.115
5	Joe Morgan J. Morgan	1,865	2,649	9,277	1,650	2,517	449	96	268	1,133	40	1,015	689	162	11,329	3,962	813	51	96	76	105	.271	.392	.427	.819
6	Carl Yastrzemski C. Yastrzemski	1,845	3,308	11,988	1,816	3,419	646	59	452	1,844	40	1,395	168	115	13,991	5,539	1,157	13	105	190	325	.285	.379	.462	.841
7	Mickey Mantle M. Mantle	1,733	2,401	8,101	1,675	2,415	344	72	536	1,509	12	1,718	152	42	9,907	4,511	952	14	47	126	113	.298	.420	.557	.977
8	Jim Thome J. Thome	1,728	2,497	8,277	1,566	2,289	444	26	604	1,674	68	2,497	19	20	10,148	4,597	1,074	1	74	170	159	.277	.403	.555	.958
9	Mel Ott M. Ott	1,720	2,730	9,455	1,859	2,876	488	72	511	1,865	64	895	89		11,348	5,041	1,071	109			38	.304	.415	.533	.948
10	Frank Thomas F. Thomas	1,667	2,322	8,199	1,494	2,468	495	12	521	1,704	87	1,397	32	23	10,074	4,550	1,028	0	121	168	226	.301	.419	.555	.974
11	Eddie Yost E. Yost	1,614	2,109	7,345	1,215	1,863	337	56	139	683	99	921	72	50	9,174	2,729	532	98	18	14	137	.254	.394	.372	.766
12	Darrell Evans D. Evans	1,605	2,687	8,973	1,344	2,223	329	36	414	1,354	35	1,410	99	68	10,737	3,866	779	34	90	141	133	.248	.361	.431	.792
13	Stan Musial S. Musial	1,605	3,026	10,971	1,949	3,630	726	177	475	1,950	53	698	78	31	12,718	6,135	1,378	36	53	127	249	.331	.417	.559	.976
14	Pete Rose P. Rose	1,566	3,562	14,053	2,165	4,256	746	135	160	1,314	107	1,143	198	148	15,861	5,752	1,041	56	79	167	250	.303	.375	.409	.784
15	Harmon Killebrew H. Killebrew	1,561	2,435	8,147	1,282	2,086	290	24	573	1,583	48	1,704	19	20	9,833	4,143	887	0	77	161	243	.256	.376	.509	.884
16	Eddie Collins E. Collins	1,533	2,825	9,955	1,822	3,311	438	187	47		77		741		12,081	4,264	672	516				.333	.426	.428	.854
17	Lou Gehrig L. Gehrig	1,511	2,164	8,001	1,888	2,721	534	163	493	1,998	46	789	102		9,664	5,060	1,190	106			2	.340	.448	.632	1.080
18	Mike Schmidt M. Schmidt	1,507	2,404	8,352	1,506	2,234	408	59	548	1,595	79	1,883	174	91	10,062	4,404	1,015	16	108	201	156	.267	.380	.527	.908
19	Gary Sheffield G. Sheffield	1,475	2,576	9,217	1,636	2,689	467	27	509	1,676	135	1,171	253	104	10,947	4,737	1,003	9	111	130	235	.292	.393	.514	.907
20	Chipper Jones C. Jones	1,467	2,416	8,698	1,580	2,646	529	38	459	1,585	17	1,370	149	46	10,280	4,628	1,026	3	95	171	241	.304	.402	.532	.934
21	Willie Mays W. Mays	1,467	2,992	10,881	2,060	3,283	523	140	660	1,903	44	1,527	338	102	12,496	6,066	1,323	13	91	193	253	.302	.384	.557	.942
22	Jimmie Foxx J. Foxx	1,457	2,317	8,134	1,751	2,645	458	125	534	1,924	13	1,311	87		9,676	4,955	1,117	72			70	.325	.428	.609	1.038
23	Eddie Mathews E. Mathews	1,443	2,391	8,537	1,509	2,315	354	72	512	1,454	26	1,490	69	41	10,100	4,349	938	36	58	107	127	.271	.376	.509	.885
24	Bobby Abreu B. Abreu	1,433	2,277	8,211	1,425	2,409	562	59	284	1,337	33	1,784	394	126	9,767	3,941	905	7	83	112	156	.293	.397	.480	.877
25	Frank Robinson F. Robinson	1,418	2,808	10,006	1,830	2,943	528	72	586	1,812	198	1,532	203	79	11,741	5,373	1,186	17	102	218	279	.294	.389	.537	.926