Since 2020, Dylan Cease has allowed the most walks, with 339 allowed.

Interpreted as:

most walks allowed with a minimum of 0.5 IP per team game by a player since 2020

	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	Dylan Cease D. Cease	339	149	54	41	.568	149	3.64	974	3	3	0	808.0	663	327	363	88	29	0	7	3,410	46	10.85	3.78	2.87	0.98	28.6	9.9	1.24	.290	4.04	87	3.54	83	7.38	63.6
2	Charlie Morton C. Morton	300	140	47	42	.528	138	4.11	839	0	0	0	751.0	669	343	367	91	70	0	4	3,209	16	10.05	3.60	2.80	1.09	26.1	9.3	1.29	.303	4.40	98	3.98	98	8.02	9.7
3	Blake Snell B. Snell	289	116	39	30	.565	116	3.14	787	1	1	0	599.2	436	209	223	58	9	0	1	2,494	43	11.81	4.34	2.72	0.87	31.6	11.6	1.21	.280	3.35	78	3.30	79	6.54	56.3
4	Framber Valdez F. Valdez	268	130	61	37	.622	129	3.19	801	8	3	0	822.0	682	291	321	64	45	0	1	3,369	42	8.77	2.93	2.99	0.70	23.8	8.0	1.16	.282	3.51	78	3.37	82	7.47	68.2
5	Kyle Gibson K. Gibson	267	138	44	41	.518	137	4.59	667	1	1	0	782.1	777	399	421	104	33	0	4	3,326	20	7.67	3.07	2.50	1.20	20.1	8.0	1.33	.298	4.84	110	4.35	104	8.94	-13.5
6	Luis Castillo L. Castillo	263	140	47	51	.480	140	3.47	872	1	0	0	818.2	714	316	349	93	27	0	6	3,396	5	9.59	2.89	3.32	1.02	25.7	7.7	1.19	.290	3.84	85	3.58	86	7.85	52.3
7	Yusei Kikuchi Y. Kikuchi	251	141	35	40	.467	129	4.34	754	0	0	1	684.1	648	330	357	111	21	4	0	2,912	24	9.92	3.30	3.00	1.46	25.9	8.6	1.31	.303	4.70	107	4.27	103	8.52	-8.4
8	Tyler Anderson T. Anderson	248	138	44	40	.524	132	3.97	601	1	0	0	759.1	698	335	360	96	29	0	6	3,201	19	7.12	2.94	2.42	1.14	18.8	7.7	1.25	.270	4.27	95	4.32	102	8.27	-8.8
9	Patrick Corbin P. Corbin	246	142	35	71	.330	142	5.55	611	1	0	0	769.1	934	474	504	136	17	0	5	3,420	14	7.15	2.88	2.48	1.59	17.9	7.2	1.53	.331	5.90	133	4.90	116	10.93	-56.1
10	Mitch Keller M. Keller	244	129	36	48	.429	127	4.40	651	2	1	0	692.2	712	339	361	79	51	0	2	3,015	13	8.46	3.17	2.67	1.03	21.6	8.1	1.38	.318	4.69	103	4.05	97	9.25	9.1
11	Martín Pérez M. Pérez	242	145	38	32	.543	116	4.02	530	1	1	0	669.0	684	299	326	82	28	9	3	2,873	14	7.13	3.26	2.19	1.10	18.4	8.4	1.38	.302	4.39	94	4.38	104	9.20	-13.3
12	Chris Bassitt C. Bassitt	241	139	60	39	.606	139	3.46	778	2	2	0	812.2	738	312	336	90	56	0	5	3,394	20	8.62	2.67	3.23	1.00	22.9	7.1	1.20	.291	3.72	86	3.79	92	8.17	31.1
13	Taijuan Walker T. Walker	240	126	42	35	.545	121	4.32	546	0	0	0	654.1	606	314	338	95	27	1	2	2,767	9	7.51	3.30	2.28	1.31	19.7	8.7	1.29	.275	4.65	105	4.61	110	8.34	-28.9
14	Corbin Burnes C. Burnes	240	143	53	32	.624	140	2.90	974	0	0	0	849.1	638	274	305	81	34	2	0	3,402	38	10.32	2.54	4.06	0.86	28.6	7.1	1.03	.269	3.23	70	3.08	74	6.76	103.6
15	Zac Gallen Z. Gallen	240	135	52	33	.612	135	3.42	832	2	2	0	773.2	637	294	311	84	29	0	1	3,161	29	9.68	2.79	3.47	0.98	26.3	7.6	1.13	.280	3.62	81	3.47	85	7.41	51.6
16	José Berríos J. Berríos	238	147	57	44	.564	147	3.97	794	2	0	0	849.2	796	375	393	121	51	0	4	3,544	17	8.41	2.52	3.34	1.28	22.4	6.7	1.22	.288	4.16	97	4.17	100	8.43	0.5
17	Nick Pivetta N. Pivetta	238	140	42	42	.500	113	4.26	761	1	0	2	674.0	589	319	329	108	18	4	4	2,820	29	10.16	3.18	3.20	1.44	27.0	8.4	1.23	.284	4.39	98	4.12	99	7.86	4
18	Freddy Peralta F. Peralta	231	130	43	31	.581	114	3.46	779	1	0	0	630.1	462	242	254	79	34	2	1	2,587	22	11.12	3.30	3.37	1.13	30.1	8.9	1.10	.262	3.63	82	3.59	85	6.60	44.5
19	Brady Singer B. Singer	226	133	40	45	.471	130	4.23	681	1	0	0	718.2	719	338	362	86	43	2	1	3,069	16	8.53	2.83	3.01	1.08	22.2	7.4	1.31	.311	4.53	97	3.95	95	9.00	16
20	Kevin Gausman K. Gausman	217	145	57	42	.576	143	3.33	947	2	1	0	832.1	741	308	340	86	10	1	2	3,416	19	10.24	2.35	4.36	0.93	27.7	6.4	1.15	.304	3.68	83	3.05	74	8.01	99.3
21	Patrick Sandoval P. Sandoval	217	97	19	41	.317	91	4.00	487	1	1	1	496.2	476	221	258	49	16	2	4	2,165	22	8.82	3.93	2.24	0.89	22.5	10.0	1.40	.306	4.68	95	3.90	91	8.63	20.1
22	Lucas Giolito L. Giolito	216	107	33	36	.478	107	4.31	686	2	1	0	603.0	537	289	310	102	17	0	4	2,525	23	10.24	3.22	3.18	1.52	27.2	8.6	1.25	.289	4.63	103	4.26	98	8.01	6.2
23	Sonny Gray S. Gray	216	128	43	35	.551	128	3.51	769	0	0	0	700.2	591	273	295	69	27	0	1	2,884	33	9.88	2.77	3.56	0.89	26.7	7.5	1.15	.290	3.79	84	3.30	79	7.59	69.1
24	Cal Quantrill C. Quantrill	216	144	39	29	.574	111	4.06	464	0	0	1	642.2	643	290	311	80	41	4	1	2,743	19	6.50	3.02	2.15	1.12	16.9	7.9	1.34	.290	4.36	96	4.53	110	9.00	-28.4
25	Dane Dunning D. Dunning	215	125	28	32	.467	102	4.36	520	0	0	1	575.2	573	279	293	76	36	9	1	2,481	28	8.13	3.36	2.42	1.19	21.0	8.7	1.37	.304	4.58	105	4.39	103	8.96	-6.9