The Chicago White Sox allowed the most walks by a team in 2018, with 653 allowed.

	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	White Sox	653	2018	162	.383	62	100	162	4.83	1,259	0	0	34	1437.0	1,404	771	848	196	89	25	6,339	94	7.89	4.09	1.93	1.23	19.9	10.3	1.43	.292	5.31	8.79
2	Braves	635	2018	162	.556	90	72	162	3.75	1,423	2	1	40	1456.2	1,236	607	657	153	52	43	6,155	61	8.79	3.92	2.24	0.95	23.1	10.3	1.28	.278	4.06	7.64
3	Cubs	622	2018	163	.583	95	68	163	3.65	1,333	1	0	46	1476.1	1,319	598	645	157	66	33	6,264	46	8.13	3.79	2.14	0.96	21.3	9.9	1.31	.284	3.93	8.04
4	Marlins	605	2018	161	.391	63	98	161	4.76	1,249	1	0	30	1442.0	1,388	762	809	192	71	73	6,236	47	7.80	3.78	2.06	1.20	20.0	9.7	1.38	.290	5.05	8.66
5	Cardinals	593	2018	162	.543	88	74	162	3.85	1,337	1	1	43	1455.1	1,354	622	691	144	67	49	6,271	63	8.27	3.67	2.25	0.89	21.3	9.5	1.34	.293	4.27	8.37
6	Orioles	589	2018	162	.290	47	115	162	5.18	1,203	2	0	28	1431.0	1,552	824	892	234	67	29	6,340	81	7.57	3.70	2.04	1.47	19.0	9.3	1.50	.310	5.61	9.76
7	Twins	573	2018	162	.481	78	84	162	4.50	1,377	1	1	37	1443.1	1,425	721	775	198	80	34	6,287	59	8.59	3.57	2.40	1.23	21.9	9.1	1.38	.302	4.83	8.89
8	Brewers	553	2018	163	.589	96	67	163	3.73	1,428	0	0	49	1461.0	1,259	606	659	173	61	34	6,114	50	8.80	3.41	2.58	1.07	23.4	9.0	1.24	.279	4.06	7.76
9	Blue Jays	551	2018	162	.451	73	89	162	4.85	1,298	0	0	39	1433.2	1,476	772	832	208	67	19	6,265	71	8.15	3.46	2.36	1.31	20.7	8.8	1.41	.306	5.22	9.27
10	Royals	549	2018	162	.358	58	104	162	4.94	1,157	2	0	33	1432.0	1,542	786	833	205	51	28	6,284	68	7.27	3.45	2.11	1.29	18.4	8.7	1.46	.309	5.24	9.69
11	Angels	546	2018	162	.494	80	82	162	4.15	1,386	1	1	35	1437.1	1,353	662	722	205	65	17	6,108	87	8.68	3.42	2.54	1.28	22.7	8.9	1.32	.294	4.52	8.47
12	Reds	532	2018	162	.414	67	95	162	4.63	1,258	1	0	38	1441.0	1,491	741	819	228	50	60	6,279	48	7.86	3.32	2.36	1.42	20.0	8.5	1.40	.300	5.12	9.31
13	Rockies	525	2018	163	.558	91	72	163	4.33	1,409	0	0	51	1452.1	1,377	699	745	184	52	24	6,154	70	8.73	3.25	2.68	1.14	22.9	8.5	1.31	.299	4.62	8.53
14	Giants	524	2018	162	.451	73	89	162	3.95	1,269	1	1	36	1461.1	1,387	641	699	156	45	37	6,191	44	7.82	3.23	2.42	0.96	20.5	8.5	1.31	.293	4.30	8.54
15	Diamondbacks	522	2018	162	.506	82	80	162	3.72	1,448	1	1	39	1463.0	1,313	605	644	174	57	43	6,139	69	8.91	3.21	2.77	1.07	23.6	8.5	1.25	.289	3.96	8.08
16	Padres	519	2018	162	.407	66	96	162	4.40	1,399	0	0	36	1457.0	1,430	713	767	185	68	28	6,254	52	8.64	3.21	2.70	1.14	22.4	8.3	1.34	.305	4.74	8.83
17	Red Sox	512	2018	162	.667	108	54	162	3.75	1,558	2	0	46	1458.2	1,305	608	647	176	84	8	6,166	51	9.61	3.16	3.04	1.09	25.3	8.3	1.25	.294	3.99	8.05
18	Rays	501	2018	162	.556	90	72	162	3.74	1,421	0	0	52	1448.1	1,236	602	646	164	53	34	5,992	55	8.83	3.11	2.84	1.02	23.7	8.4	1.20	.278	4.01	7.68
19	Phillies	500	2018	162	.494	80	82	162	4.14	1,465	0	0	44	1445.2	1,366	665	728	171	60	35	6,138	81	9.12	3.11	2.93	1.06	23.9	8.1	1.29	.303	4.53	8.50
20	Pirates	497	2018	161	.509	82	79	161	4.00	1,336	2	2	40	1434.0	1,380	637	693	174	69	43	6,144	95	8.38	3.12	2.69	1.09	21.7	8.1	1.31	.296	4.35	8.66
21	Yankees	494	2018	162	.617	100	62	162	3.78	1,634	2	2	49	1456.1	1,311	611	669	177	58	9	6,141	73	10.10	3.05	3.31	1.09	26.6	8.0	1.24	.300	4.13	8.10
22	Tigers	491	2018	162	.395	64	98	162	4.58	1,215	0	0	37	1425.1	1,423	726	796	216	60	20	6,130	54	7.67	3.10	2.47	1.36	19.8	8.0	1.34	.291	5.03	8.99
23	Rangers	491	2018	162	.414	67	95	162	4.92	1,121	1	0	42	1431.0	1,516	783	848	222	72	23	6,231	57	7.05	3.09	2.28	1.40	18.0	7.9	1.40	.299	5.33	9.53
24	Nationals	487	2018	162	.506	82	80	162	4.04	1,417	1	1	40	1446.0	1,320	649	682	198	76	37	6,086	42	8.82	3.03	2.91	1.23	23.3	8.0	1.25	.287	4.24	8.22
25	Mets	484	2018	162	.475	77	85	162	4.07	1,446	3	1	41	1460.2	1,364	661	707	185	71	32	6,178	26	8.91	2.98	2.99	1.14	23.4	7.8	1.27	.295	4.36	8.40