Between the 2000 and 2023 seasons, CC Sabathia allowed the most walks, with 1,099 allowed.

Interpreted as:

most walks with a minimum of 0.5 IP per team game by pitcher 2000 to 2023

	NAME	BB	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	ERA-	FIP	FIP-	H/9	PRAA
1	CC Sabathia	1,099	561	251	161	.609	560	3.74	3,093	38	12	0	3577.1	3,404	1,485	1,623	382	123	0	44	14,989	74	7.78	2.76	2.81	0.96	20.6	7.3	1.26	.294	4.08	87	3.77	87	8.56	223.7
2	A.J. Burnett	1,075	428	160	155	.508	423	3.99	2,480	24	10	0	2690.0	2,482	1,194	1,305	260	143	1	33	11,483	161	8.30	3.60	2.31	0.87	21.6	9.4	1.32	.295	4.37	97	3.85	92	8.30	96.2
3	Barry Zito B. Zito	1,064	433	165	143	.536	421	4.04	1,885	12	5	0	2576.2	2,381	1,157	1,254	282	97	9	52	11,001	50	6.58	3.72	1.77	0.98	17.1	9.7	1.34	.274	4.38	97	4.38	104	8.32	-43.1
4	Ryan Dempster R. Dempster	940	540	124	120	.508	315	4.26	1,914	11	3	87	2185.1	2,129	1,034	1,126	240	76	185	44	9,474	67	7.88	3.87	2.04	0.99	20.2	9.9	1.40	.300	4.64	100	4.14	98	8.77	22
5	Justin Verlander J. Verlander	925	509	257	141	.646	509	3.24	3,342	26	9	0	3325.1	2,793	1,197	1,298	340	109	0	27	13,549	95	9.05	2.50	3.61	0.92	24.7	6.8	1.12	.278	3.51	76	3.38	80	7.56	316.3
6	Carlos Zambrano C. Zambrano	898	354	132	91	.592	302	3.66	1,637	10	5	0	1959.0	1,709	797	879	161	102	11	41	8,389	58	7.52	4.13	1.82	0.74	19.5	10.7	1.33	.277	4.04	85	4.01	93	7.85	65.4
7	Jon Lester J. Lester	892	452	200	117	.631	451	3.66	2,488	15	4	0	2740.0	2,610	1,114	1,215	294	90	0	13	11,487	63	8.17	2.93	2.79	0.97	21.7	7.8	1.28	.300	3.99	86	3.77	92	8.57	101.7
8	Tim Hudson T. Hudson	855	461	211	131	.617	458	3.50	1,948	25	13	0	2990.1	2,836	1,164	1,263	240	120	0	82	12,425	78	5.86	2.57	2.28	0.72	15.7	6.9	1.23	.280	3.80	84	3.79	91	8.54	131.3
9	Ubaldo Jimenez U. Jimenez	848	329	114	117	.494	315	4.34	1,720	9	3	1	1870.0	1,757	901	968	186	78	4	31	8,094	93	8.28	4.08	2.03	0.90	21.3	10.5	1.39	.299	4.66	102	4.04	95	8.46	44.5
10	Livan Hernandez L. Hernandez	846	438	151	150	.502	394	4.45	1,596	39	9	1	2655.2	2,949	1,312	1,404	297	67	17	72	11,472	35	5.41	2.87	1.89	1.01	13.9	7.4	1.43	.306	4.76	105	4.35	102	9.99	-29.4
11	Francisco Liriano F. Liriano	816	419	112	114	.496	300	4.15	1,815	3	1	1	1813.2	1,649	837	911	184	62	19	15	7,781	100	9.01	4.05	2.22	0.91	23.3	10.5	1.36	.299	4.52	101	3.88	95	8.18	39.3
12	Gio Gonzalez G. Gonzalez	815	344	131	101	.565	328	3.70	1,860	4	2	0	1933.0	1,744	795	857	171	50	4	21	8,242	59	8.66	3.79	2.28	0.80	22.6	9.9	1.32	.294	3.99	91	3.67	91	8.12	77.3
13	John Lackey J. Lackey	815	448	188	147	.561	446	3.92	2,294	18	8	0	2840.1	2,862	1,237	1,347	319	133	0	32	12,030	125	7.27	2.58	2.81	1.01	19.1	6.8	1.29	.300	4.27	92	3.94	94	9.07	79.6
14	Felix Hernandez F. Hernandez	805	419	169	136	.554	418	3.42	2,524	25	11	0	2729.2	2,487	1,037	1,157	264	105	0	16	11,284	156	8.32	2.65	3.14	0.87	22.4	7.1	1.21	.293	3.81	84	3.52	85	8.20	181.5
15	Doug Davis D. Davis	783	304	92	108	.460	286	4.39	1,276	7	3	0	1713.0	1,801	836	911	177	44	4	28	7,577	63	6.70	4.11	1.63	0.93	16.8	10.3	1.51	.307	4.79	98	4.38	98	9.46	14.9
16	Edwin Jackson E. Jackson	779	412	107	133	.446	318	4.78	1,508	5	3	1	1960.0	2,094	1,040	1,135	249	39	30	39	8,569	108	6.92	3.58	1.94	1.14	17.6	9.1	1.47	.308	5.21	116	4.47	108	9.62	-74.1
17	Ervin Santana E. Santana	776	425	151	129	.539	386	4.11	1,978	21	11	0	2486.2	2,391	1,135	1,221	331	104	20	35	10,482	104	7.16	2.81	2.55	1.20	18.9	7.4	1.27	.282	4.42	99	4.31	104	8.65	-44.1
18	Jason Marquis J. Marquis	769	377	124	118	.512	318	4.61	1,174	8	5	1	1968.1	2,079	1,008	1,114	253	88	26	41	8,623	56	5.37	3.52	1.53	1.16	13.6	8.9	1.45	.288	5.09	110	4.86	115	9.51	-139
19	Cole Hamels C. Hamels	767	423	163	122	.572	422	3.43	2,560	17	7	0	2698.0	2,424	1,027	1,103	310	100	0	43	11,115	57	8.54	2.56	3.34	1.03	23.0	6.9	1.18	.287	3.68	82	3.68	88	8.09	151.3
20	Randy Wolf R. Wolf	764	368	127	116	.523	358	4.17	1,698	13	9	1	2206.2	2,184	1,022	1,095	276	98	3	39	9,425	40	6.93	3.12	2.22	1.13	18.0	8.1	1.34	.290	4.47	100	4.33	102	8.91	-19.6
21	Zack Greinke Z. Greinke	762	586	225	156	.591	541	3.49	2,979	17	5	1	3389.1	3,207	1,315	1,410	367	79	8	25	13,877	101	7.91	2.02	3.91	0.97	21.5	5.5	1.17	.293	3.74	83	3.51	85	8.52	235
22	Bartolo Colon B. Colon	748	483	211	167	.558	472	4.11	2,150	30	10	0	2958.2	3,096	1,351	1,465	388	51	2	36	12,487	32	6.54	2.28	2.87	1.18	17.2	6.0	1.30	.296	4.46	96	4.14	97	9.42	44.8
23	Max Scherzer M. Scherzer	746	457	213	108	.664	448	3.15	3,367	12	5	0	2834.2	2,306	991	1,063	328	111	2	20	11,452	76	10.69	2.37	4.51	1.04	29.4	6.5	1.08	.287	3.38	75	3.16	76	7.32	310.2
24	James Shields J. Shields	746	407	145	139	.511	405	4.01	2,234	23	9	0	2616.0	2,581	1,167	1,267	361	97	1	22	10,993	107	7.69	2.57	2.99	1.24	20.3	6.8	1.27	.294	4.36	98	4.16	101	8.88	-13.5
25	Miguel Batista M. Batista	742	542	91	98	.481	212	4.46	1,029	9	4	40	1637.0	1,685	812	901	167	65	142	45	7,209	87	5.66	4.08	1.39	0.92	14.3	10.3	1.48	.292	4.95	101	4.62	105	9.26	-40.9