what team holds the record for bases loaded walks in a season since 1903

The Boston Beaneaters got 398 free passes in 1903.

	TEAM	BB	SEASON	G	W%	W	L	AB	R	H	2B	3B	HR	RBI	HBP	SO	SB	PA	TB	XBH	SH	AVG	OBP	SLG	OPS
1	Beaneaters	398	1903	140	.420	58	80	4,682	575	1,145	176	47	25	479	59	495	159	5,240	1,490	248	101	.245	.312	.318	.630
2	Cubs	422	1903	139	.594	82	56	4,733	695	1,300	191	62	9	548	50	455	259	5,323	1,642	262	118	.275	.340	.347	.687
3	Reds	403	1903	141	.532	74	65	4,857	764	1,399	228	92	28	652	30	427	151	5,379	1,895	348	89	.288	.346	.390	.736
4	Pirates	364	1903	141	.650	91	49	4,988	793	1,429	208	110	34	650	50	400	172	5,511	1,959	352	109	.286	.341	.393	.734
5	Giants	379	1903	142	.604	84	55	4,741	729	1,290	181	49	20	570	92	465	264	5,397	1,629	250	185	.272	.338	.344	.681
6	Phillies	338	1903	139	.363	49	86	4,781	618	1,283	186	62	12	500	39	431	120	5,313	1,629	260	155	.268	.322	.341	.663
7	Superbas	522	1903	139	.515	70	66	4,534	666	1,201	177	56	15	539	53	516	273	5,233	1,535	248	124	.265	.348	.339	.686
8	Cardinals	277	1903	139	.314	43	94	4,689	505	1,176	138	65	8	404	34	522	171	5,096	1,468	211	96	.251	.297	.313	.610
9	Americans	262	1903	141	.659	91	47	4,919	708	1,336	222	113	48	609	36	559	141	5,365	1,928	383	148	.272	.313	.392	.705
10	White Sox	325	1903	138	.438	60	77	4,670	516	1,152	176	49	14	436	38	538	180	5,175	1,468	239	142	.247	.301	.314	.615
11	Naps	259	1903	140	.550	77	63	4,773	639	1,265	231	95	31	550	40	588	175	5,225	1,779	357	153	.265	.308	.373	.681
12	Tigers	292	1903	137	.478	65	71	4,582	567	1,229	162	91	12	451	46	524	128	5,090	1,609	265	170	.268	.318	.351	.670
13	Browns	271	1903	139	.468	65	74	4,639	500	1,133	166	68	12	408	26	541	101	5,047	1,471	246	111	.244	.290	.317	.607
14	Athletics	268	1903	137	.556	75	60	4,673	597	1,236	227	68	32	502	32	511	157	5,074	1,695	327	101	.264	.309	.363	.672
15	Senators	257	1903	140	.314	43	94	4,613	437	1,066	172	72	17	372	39	466	131	4,990	1,433	261	81	.231	.277	.311	.588
16	Highlanders	332	1903	136	.537	72	62	4,565	579	1,136	193	62	18	474	65	461	160	5,091	1,507	273	129	.249	.309	.330	.639
17	Beaneaters	316	1904	155	.359	55	98	5,135	491	1,217	153	50	24	394	42	550	143	5,594	1,542	227	101	.237	.287	.300	.587
18	Cubs	298	1904	156	.608	93	60	5,210	597	1,294	157	62	22	470	48	470	227	5,695	1,641	241	139	.248	.295	.315	.610
19	Reds	399	1904	157	.575	88	65	5,231	692	1,332	189	92	21	561	49	549	180	5,811	1,768	302	132	.255	.313	.338	.651
20	Pirates	391	1904	156	.569	87	66	5,160	675	1,333	164	102	15	523	47	516	178	5,714	1,746	281	116	.258	.316	.338	.655
21	Giants	434	1904	158	.693	106	47	5,150	744	1,347	202	65	31	564	79	459	283	5,828	1,772	298	165	.262	.328	.344	.673
22	Phillies	377	1904	155	.342	52	100	5,103	571	1,268	170	54	23	469	40	528	159	5,637	1,615	247	117	.248	.305	.316	.622
23	Superbas	411	1904	154	.366	56	97	4,916	497	1,142	159	53	15	390	42	688	205	5,497	1,452	227	128	.232	.297	.295	.592
24	Cardinals	343	1904	155	.487	75	79	5,104	602	1,292	175	66	24	456	46	514	199	5,619	1,671	265	126	.253	.306	.327	.633
25	Americans	347	1904	157	.617	95	59	5,231	608	1,294	194	105	26	522	51	573	101	5,784	1,776	325	155	.247	.301	.340	.640