most walks per ab in a career (min 2500 ab), since 1948

Since 1948, Ted Williams has the most walks per at-bat with 2,500+ at-bats, with 0.26.

Interpreted as:

most walks per ab by a player in a career (min 2500 ab), since 1948

	NAME	BB/AB	AB	BB	G	R	H	2B	3B	HR	RBI	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS	WRC	WRAA	WOBA	WRC+	BRAA
1	Ted Williams T. Williams	0.26	4,560	1,208	1,400	990	1,548	294	21	324	1,087	23	422	13	4	5,811	2,856	639	0	20	86	130	.339	.478	.626	1.105	1370	695.1	.484	184	603.6
2	Barry Bonds B. Bonds	0.26	9,847	2,558	2,986	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	2663	1,143.3	.435	172	1,142
3	Ferris Fain F. Fain	0.23	3,469	809	1,015	525	1,005	185	24	41	499	16	227	42	12	4,337	1,361	250	35	8	3	102	.290	.425	.392	.818	687	177	.390	125	136.6
4	Juan Soto J. Soto	0.23	3,857	896	1,096	775	1,086	199	16	244	697	19	833	95	27	4,801	2,049	459	3	26	80	101	.282	.417	.531	.948	919	344.3	.402	158	338.1
5	Eddie Joost E. Joost	0.23	2,946	671	821	568	752	124	16	108	388	20	454	27	19	3,666	1,232	248	29	0	2	40	.255	.397	.418	.815	562	131.6	.384	120	91.1
6	Eddie Yost E. Yost	0.23	6,879	1,563	1,979	1,158	1,757	319	53	139	667	97	856	67	48	8,643	2,599	511	86	18	15	124	.255	.399	.378	.777	1249	247.4	.367	117	184.1
7	Gene Tenace G. Tenace	0.22	4,390	984	1,555	653	1,060	179	20	201	674	91	998	36	42	5,525	1,882	400	21	39	58	77	.241	.388	.429	.817	836	229	.373	140	247.3
8	Mickey Mantle M. Mantle	0.21	8,102	1,733	2,401	1,676	2,415	344	72	536	1,509	13	1,710	153	38	9,909	4,511	952	14	47	126	113	.298	.421	.557	.977	1941	840	.428	170	821.8
9	Mark McGwire M. McGwire	0.21	6,187	1,317	1,874	1,167	1,626	252	6	583	1,414	75	1,596	12	8	7,660	3,639	841	3	78	150	147	.263	.394	.588	.982	1480	564.9	.415	157	558.2
10	Jim Thome J. Thome	0.21	8,422	1,747	2,543	1,583	2,328	451	26	612	1,699	69	2,548	19	20	10,313	4,667	1,089	1	74	173	165	.276	.402	.554	.956	1925	653.9	.406	145	589.5
11	Frank Thomas F. Thomas	0.2	8,199	1,667	2,322	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	1954	721.1	.416	154	692
12	Ralph Kiner R. Kiner	0.2	4,138	839	1,176	790	1,150	176	32	295	807	21	559	18	2	5,011	2,275	503	6	7	1	99	.278	.402	.550	.951	945	357.3	.428	147	295.9
13	Mickey Tettleton M. Tettleton	0.2	4,698	949	1,485	711	1,132	210	16	245	732	30	1,307	23	29	5,745	2,109	471	21	47	72	86	.241	.369	.449	.818	850	178.9	.363	122	148.2
14	Joe Morgan J. Morgan	0.2	9,277	1,865	2,649	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	1717	490	.372	135	447.2
15	Elmer Valo E. Valo	0.2	3,530	706	1,355	535	1,003	176	48	45	470	30	209	73	30	4,321	1,410	269	38	17	12	83	.284	.406	.399	.805	651	146.3	.378	119	101.3
16	Rickey Henderson R. Henderson	0.2	10,961	2,190	3,081	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	2074	509.6	.372	132	507.9
17	Aaron Judge A. Judge	0.2	4,105	817	1,145	873	1,205	203	7	368	830	40	1,369	65	21	4,995	2,526	578	0	33	104	116	.294	.413	.615	1.028	1050	453.4	.425	178	457.2
18	Bernie Carbo B. Carbo	0.2	2,733	538	1,010	372	722	140	9	96	358	19	611	26	18	3,320	1,168	245	13	17	50	58	.264	.387	.427	.814	492	133.7	.369	128	109.4
19	Earl Torgeson E. Torgeson	0.2	4,570	898	1,540	775	1,206	195	40	133	662	8	594	122	39	5,553	1,880	368	52	25	7	107	.264	.384	.411	.795	805	158.6	.368	120	134.8
20	Nick Johnson N. Johnson	0.19	2,698	522	832	430	723	173	5	95	398	74	572	29	24	3,316	1,191	273	9	13	42	78	.268	.399	.441	.840	521	118.5	.370	126	110
21	Harmon Killebrew H. Killebrew	0.19	8,147	1,559	2,435	1,283	2,086	290	24	573	1,584	48	1,699	19	18	9,831	4,143	887	0	77	160	243	.256	.376	.509	.884	1630	569	.389	142	477.8
22	Adam Dunn A. Dunn	0.19	6,883	1,317	2,001	1,097	1,631	334	10	462	1,168	86	2,379	63	25	8,328	3,371	806	2	40	122	100	.237	.364	.490	.854	1285	297.9	.367	123	240
23	Joey Votto J. Votto	0.19	7,252	1,365	2,056	1,171	2,135	459	22	356	1,144	81	1,640	80	29	8,746	3,706	837	0	48	147	168	.294	.409	.511	.920	1563	539.6	.394	145	472.9
24	Jason Giambi J. Giambi	0.19	7,267	1,366	2,260	1,227	2,010	405	9	440	1,441	180	1,572	20	12	8,908	3,753	854	2	93	97	166	.277	.399	.516	.916	1579	480.6	.394	139	451
25	Joe Ferguson J. Ferguson	0.19	3,001	562	1,013	407	719	121	11	122	445	9	607	22	12	3,624	1,228	254	17	35	64	86	.240	.358	.409	.767	474	73.8	.346	118	75