most walks in a season by a pitcher in the last 20 years

Between November 25, 2005 and November 25, 2025, Carlos Zambrano has given up the most walks in a season, with 115 allowed in 2006.

	NAME	BB	SEASON	TM	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	IP	H	ER	R	HR	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Carlos Zambrano C. Zambrano	115	2006	CHC	33	16	7	.696	33	3.41	210	0	0	0	214.0	162	81	91	20	9	0	4	917	9	8.83	4.84	1.83	0.84	22.9	12.5	1.29	.252	3.83	6.81
2	Daniel Cabrera D. Cabrera	108	2007	BAL	34	9	18	.333	34	5.55	166	1	0	0	204.1	207	126	133	25	15	0	6	922	7	7.31	4.76	1.54	1.10	18.0	11.7	1.54	.299	5.86	9.12
3	Ricky Romero R. Romero	105	2012	TOR	32	9	14	.391	32	5.77	124	1	0	0	181.0	198	116	122	21	10	0	1	829	8	6.17	5.22	1.18	1.04	15.0	12.7	1.67	.311	6.07	9.85
4	Edinson Volquez E. Volquez	105	2012	SDP	32	11	11	.500	32	4.14	174	1	1	0	182.2	160	84	88	14	9	0	6	802	9	8.57	5.17	1.66	0.69	21.7	13.1	1.45	.292	4.34	7.88
5	Oliver Perez O. Perez	105	2008	NYM	34	10	7	.588	34	4.22	180	0	0	0	194.0	167	91	100	24	11	0	4	847	9	8.35	4.87	1.71	1.11	21.3	12.4	1.40	.271	4.64	7.75
6	Daniel Cabrera D. Cabrera	104	2006	BAL	26	9	10	.474	26	4.74	157	2	1	0	148.0	130	78	82	11	5	0	1	662	17	9.55	6.32	1.51	0.67	23.7	15.7	1.58	.309	4.99	7.91
7	Doug Davis D. Davis	103	2009	ARI	34	9	14	.391	34	4.12	146	0	0	0	203.1	203	93	101	25	4	0	1	889	12	6.46	4.56	1.42	1.11	16.4	11.6	1.50	.291	4.47	8.99
8	Ubaldo Jimenez U. Jimenez	103	2008	COL	34	12	12	.500	34	3.99	172	1	0	0	198.2	182	88	97	11	10	0	4	868	16	7.79	4.67	1.67	0.50	19.8	11.9	1.43	.299	4.39	8.24
9	Barry Zito B. Zito	102	2008	SFG	32	10	17	.370	32	5.15	120	0	0	0	180.0	186	103	115	16	4	0	10	818	3	6.00	5.10	1.18	0.80	14.7	12.5	1.60	.295	5.75	9.30
10	Doug Davis D. Davis	102	2006	MIL	34	11	11	.500	34	4.91	159	1	1	0	203.1	206	111	118	19	5	0	1	904	3	7.04	4.51	1.56	0.84	17.6	11.3	1.51	.302	5.22	9.12
11	Carlos Zambrano C. Zambrano	101	2007	CHC	34	18	13	.581	34	3.95	177	1	0	0	216.1	187	95	100	23	14	0	4	925	3	7.36	4.20	1.75	0.96	19.1	10.9	1.33	.269	4.16	7.78
12	Chad Gaudin C. Gaudin	100	2007	OAK	34	11	13	.458	34	4.42	154	1	0	0	199.1	205	98	108	21	8	0	8	886	3	6.95	4.52	1.54	0.95	17.4	11.3	1.53	.305	4.88	9.26
13	Blake Snell B. Snell	99	2023	SDP	32	14	9	.609	32	2.25	234	0	0	0	180.0	115	45	47	15	3	0	0	742	13	11.70	4.95	2.36	0.75	31.5	13.3	1.19	.256	2.35	5.75
14	Barry Zito B. Zito	99	2006	OAK	34	16	10	.615	34	3.83	151	0	0	0	221.0	211	94	99	27	13	0	5	945	4	6.15	4.03	1.53	1.10	16.0	10.5	1.40	.281	4.03	8.59
15	A.J. Burnett	97	2009	NYY	33	13	9	.591	33	4.04	195	1	0	0	207.0	193	93	99	25	10	0	0	896	17	8.48	4.22	2.01	1.09	21.8	10.8	1.40	.295	4.30	8.39
16	A.J. Burnett	96	2014	PHI	34	8	18	.308	34	4.59	190	1	0	0	213.2	205	109	122	20	16	0	2	935	9	8.00	4.04	1.98	0.84	20.3	10.3	1.41	.302	5.14	8.63
17	Jonathan Sanchez J. Sanchez	96	2010	SFG	34	13	9	.591	33	3.07	205	0	0	0	193.1	142	66	74	21	9	0	4	812	15	9.54	4.47	2.14	0.98	25.2	11.8	1.23	.252	3.44	6.61
18	Tyler Chatwood T. Chatwood	95	2018	CHC	24	4	6	.400	20	5.30	85	0	0	0	103.2	92	61	62	9	7	4	1	486	8	7.38	8.25	0.89	0.78	17.5	19.5	1.80	.286	5.38	7.99
19	Ubaldo Jimenez U. Jimenez	95	2012	CLE	31	9	17	.346	31	5.40	143	0	0	0	176.2	190	106	116	25	8	0	3	805	16	7.28	4.84	1.51	1.27	17.8	11.8	1.61	.309	5.91	9.68
20	Doug Davis D. Davis	95	2007	ARI	33	13	12	.520	33	4.25	144	0	0	0	192.2	211	91	100	21	5	0	7	862	10	6.73	4.44	1.52	0.98	16.7	11.0	1.59	.318	4.67	9.86
21	Yovani Gallardo Y. Gallardo	94	2009	MIL	30	13	12	.520	30	3.73	204	1	0	0	185.2	150	77	78	21	5	0	5	793	9	9.89	4.56	2.17	1.02	25.7	11.9	1.31	.275	3.78	7.27
22	Daisuke Matsuzaka D. Matsuzaka	94	2008	BOS	29	18	3	.857	29	2.90	154	0	0	0	167.2	128	54	58	12	7	0	1	716	5	8.27	5.05	1.64	0.64	21.5	13.1	1.32	.258	3.11	6.87
23	Wade Miley W. Miley	93	2017	BAL	32	8	15	.348	32	5.61	142	0	0	0	157.1	179	98	104	25	4	0	1	728	1	8.12	5.32	1.53	1.43	19.5	12.8	1.73	.332	5.95	10.24
24	C.J. Wilson	93	2010	TEX	33	15	8	.652	33	3.35	170	3	0	0	204.0	161	76	83	10	10	0	0	850	7	7.50	4.10	1.83	0.44	20.0	10.9	1.25	.266	3.66	7.10
25	Edinson Volquez E. Volquez	93	2008	CIN	33	17	6	.739	32	3.21	206	0	0	0	196.0	167	70	82	14	14	1	5	838	10	9.46	4.27	2.22	0.64	24.6	11.1	1.33	.299	3.77	7.67