team with most walks allowed in a single season

The Philadelphia Athletics have allowed the most walks by a team in a season, with 827 allowed in 1915.

	TEAM	BB	SEASON	G	W%	W	L	GS	ERA	SO	CG	SHO	SV	IP	H	ER	R	HR	HBP	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Athletics	827	1915	154	.283	43	109	154	4.29	588	78	6	2	1348.1	1,358	643	889	22	57		5,777	68	3.92	5.52	0.71	0.15	10.2	14.3	1.62	.312	5.93	9.06
2	Yankees	812	1949	155	.630	97	57	155	3.69	671	59	12	36	1371.1	1,231	563	637	98	36		6,006	35	4.40	5.33	0.83	0.64	11.2	13.5	1.49	.258	4.18	8.08
3	Browns	801	1951	154	.338	52	102	154	5.18	550	56	4	10	1370.1	1,525	788	882	132	38		6,316	26	3.61	5.26	0.69	0.87	8.7	12.7	1.70	.291	5.79	10.02
4	Tigers	784	1996	162	.327	53	109	162	6.38	957	10	4	22	1432.2	1,699	1,015	1,103	241	80	63	6,713	82	6.01	4.93	1.22	1.51	14.3	11.7	1.73	.313	6.93	10.67
5	Senators	779	1949	154	.325	50	104	154	5.10	451	44	8	10	1345.2	1,438	762	868	79	25		6,141	41	3.02	5.21	0.58	0.53	7.3	12.7	1.65	.283	5.81	9.62
6	Indians	770	1971	162	.370	60	102	162	4.27	937	21	4	32	1440.0	1,352	684	747	154	48	69	6,326	66	5.86	4.81	1.22	0.96	14.8	12.2	1.47	.271	4.67	8.45
7	Rangers	760	1987	162	.463	75	87	162	4.63	1,103	20	0	27	1444.1	1,388	743	849	199	55	34	6,390	61	6.87	4.74	1.45	1.24	17.3	11.9	1.49	.278	5.29	8.65
8	Athletics	758	1949	154	.526	81	73	154	4.23	490	85	8	11	1365.0	1,359	642	725	105	19		6,006	33	3.23	5.00	0.65	0.69	8.2	12.6	1.55	.271	4.78	8.96
9	Red Sox	748	1950	154	.610	94	60	154	4.88	630	66	5	28	1362.1	1,413	739	804	121	23		6,085	27	4.16	4.94	0.84	0.80	10.4	12.3	1.59	.283	5.31	9.33
10	Browns	739	1939	156	.279	43	111	156	6.01	516	56	3	4	1371.1	1,724	916	1,035	133	29		6,474	32	3.39	4.85	0.70	0.87	8.0	11.4	1.80	.315	6.79	11.31
11	Rockies	737	1999	162	.444	72	90	162	6.01	1,032	12	1	33	1429.0	1,700	955	1,028	237	60	46	6,574	70	6.50	4.64	1.40	1.49	15.7	11.2	1.71	.325	6.47	10.71
12	Browns	737	1948	155	.386	59	94	155	5.01	531	35	4	21	1373.1	1,513	764	849	103	30		6,225	47	3.48	4.83	0.72	0.68	8.5	11.8	1.64	.292	5.56	9.92
13	Browns	737	1938	156	.362	55	97	156	5.80	632	71	3	7	1344.2	1,584	867	962	132	26		6,222	27	4.23	4.93	0.86	0.88	10.2	11.8	1.73	.309	6.44	10.60
14	Rangers	736	1986	162	.537	87	75	162	4.11	1,059	15	5	41	1450.1	1,356	662	743	145	41	37	6,311	94	6.57	4.57	1.44	0.90	16.8	11.7	1.44	.280	4.61	8.41
15	White Sox	734	1950	156	.390	60	94	156	4.41	566	62	7	9	1365.2	1,370	669	749	107	21		6,061	27	3.73	4.84	0.77	0.71	9.3	12.1	1.54	.273	4.94	9.03
16	Senators	734	1948	154	.366	56	97	154	4.65	446	42	3	22	1357.1	1,439	702	795	81	27		6,139	19	2.96	4.87	0.61	0.54	7.3	12.0	1.60	.280	5.27	9.54
17	Senators	730	1956	155	.383	59	95	155	5.33	663	36	1	18	1368.2	1,539	811	924	171	33	26	6,263	39	4.36	4.80	0.91	1.12	10.6	11.7	1.66	.293	6.08	10.12
18	Athletics	729	1950	154	.338	52	102	154	5.49	466	50	3	18	1346.1	1,528	821	913	138	30		6,167	40	3.12	4.87	0.64	0.92	7.6	11.8	1.68	.289	6.10	10.21
19	Brewers	728	2000	163	.451	73	89	163	4.63	967	2	1	29	1466.1	1,501	755	826	174	65	87	6,497	60	5.94	4.47	1.33	1.07	14.9	11.2	1.52	.291	5.07	9.21
20	Red Sox	722	1996	162	.525	85	77	162	4.98	1,165	17	3	37	1458.0	1,606	807	921	185	50	41	6,633	51	7.19	4.46	1.61	1.14	17.6	10.9	1.60	.315	5.69	9.91
21	Expos	716	1970	162	.451	73	89	162	4.50	914	29	10	32	1438.2	1,434	720	807	162	49	76	6,347	49	5.72	4.48	1.28	1.01	14.4	11.3	1.49	.282	5.05	8.97
22	Marlins	715	1998	162	.333	54	108	162	5.18	1,016	11	0	24	1449.2	1,617	834	923	182	58	61	6,553	62	6.31	4.44	1.42	1.13	15.5	10.9	1.61	.313	5.73	10.04
23	Padres	715	1974	162	.370	60	102	162	4.58	855	25	6	19	1445.2	1,536	736	830	124	48	116	6,512	68	5.32	4.45	1.20	0.77	13.1	11.0	1.56	.296	5.17	9.56
24	Athletics	715	1916	154	.235	36	117	154	3.92	575	94	11	3	1343.2	1,311	585	776	26	31		5,653	53	3.85	4.79	0.80	0.17	10.2	12.6	1.51	.298	5.20	8.78
25	Angels	713	1961	162	.435	70	91	162	4.31	973	25	4	34	1438.0	1,391	689	784	180	34	38	6,333	53	6.09	4.46	1.36	1.13	15.4	11.3	1.46	.273	4.91	8.71