Tarik Skubal has allowed the fewest career walks by an active pitcher, with 172 allowed.

Interpreted as:

active players hits with a minimum of 750 IP leaders

	NAME	BB	IP	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	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	Tarik Skubal T. Skubal	172	766.2	137	54	37	.593	134	3.08	889	1	1	0	614	262	287	90	26	1	0	3,056	11	10.44	2.02	5.17	1.06	29.1	5.6	1.03	.279	3.37	75	3.14	76	7.21	84
2	Logan Gilbert L. Gilbert	181	835.1	146	46	36	.561	146	3.58	884	2	1	0	703	332	352	111	25	0	6	3,377	41	9.52	1.95	4.88	1.20	26.2	5.4	1.06	.272	3.79	92	3.51	88	7.57	44.3
3	Shane Bieber S. Bieber	195	883.1	143	66	34	.660	141	3.24	995	5	2	0	786	318	339	102	19	1	1	3,574	34	10.14	1.99	5.10	1.04	27.8	5.5	1.11	.302	3.45	76	3.15	75	8.01	106.7
4	Ryan Yarbrough R. Yarbrough	196	832.0	215	56	41	.577	76	4.22	654	1	0	3	790	390	413	112	66	28	14	3,472	8	7.07	2.12	3.34	1.21	18.8	5.6	1.19	.277	4.47	102	4.29	103	8.55	-12.1
5	Logan Webb L. Webb	250	1062.1	180	69	51	.575	177	3.38	994	3	2	0	1,020	399	440	74	36	0	4	4,350	22	8.42	2.12	3.98	0.63	22.9	5.7	1.20	.316	3.73	83	3.01	75	8.64	121.8
6	Pablo López P. López	251	965.0	172	59	53	.527	172	3.81	994	1	1	0	883	409	433	115	53	0	12	3,995	26	9.27	2.34	3.96	1.07	24.9	6.3	1.18	.297	4.04	93	3.61	87	8.24	56.7
7	Joe Musgrove J. Musgrove	262	1056.0	206	66	62	.516	180	3.73	1,050	2	2	2	970	438	472	133	77	7	10	4,385	21	8.95	2.23	4.01	1.13	23.9	6.0	1.17	.292	4.02	91	3.78	90	8.27	49.3
8	Antonio Senzatela A. Senzatela	264	822.0	178	43	59	.422	145	5.18	531	1	0	0	979	473	502	105	35	5	10	3,624	17	5.81	2.89	2.01	1.15	14.7	7.3	1.51	.325	5.50	107	4.62	104	10.72	-12.4
9	Brady Singer B. Singer	274	855.0	159	50	56	.472	156	4.23	808	1	0	0	845	402	427	101	56	2	1	3,650	19	8.51	2.88	2.95	1.06	22.1	7.5	1.31	.309	4.49	97	3.97	95	8.89	21.4
10	Seth Lugo S. Lugo	276	993.0	360	64	47	.577	123	3.49	954	1	0	16	889	385	413	122	37	66	18	4,098	22	8.65	2.50	3.46	1.11	23.3	6.7	1.17	.283	3.74	85	3.79	91	8.06	41
11	Corbin Burnes C. Burnes	280	968.0	210	63	38	.624	149	3.15	1,114	0	0	2	756	339	374	104	38	16	3	3,914	42	10.36	2.60	3.98	0.97	28.5	7.2	1.07	.274	3.48	75	3.25	78	7.03	100.7
12	Tyler Glasnow T. Glasnow	290	754.0	167	43	36	.544	128	3.74	952	0	0	0	575	313	333	94	13	9	5	3,085	63	11.36	3.46	3.28	1.12	30.9	9.4	1.15	.277	3.97	91	3.47	83	6.86	59.4
13	Reynaldo López R. López	293	820.1	268	47	54	.465	123	3.94	766	1	0	6	752	359	395	110	24	28	6	3,459	32	8.40	3.21	2.61	1.21	22.1	8.5	1.27	.283	4.33	91	4.21	96	8.25	12.8
14	Jameson Taillon J. Taillon	294	1237.0	224	82	60	.577	223	3.87	1,073	3	1	1	1,182	532	570	170	32	1	10	5,128	25	7.81	2.14	3.65	1.24	20.9	5.7	1.19	.284	4.15	95	4.00	97	8.60	18
15	Max Fried M. Fried	297	1079.2	200	92	41	.692	183	3.03	1,052	6	4	0	947	364	405	90	45	10	6	4,415	47	8.77	2.48	3.54	0.75	23.8	6.7	1.15	.292	3.38	71	3.24	78	7.89	112
16	Mitch Keller M. Keller	299	878.0	165	42	65	.393	163	4.51	837	2	1	0	914	440	472	103	58	0	2	3,818	19	8.58	3.06	2.80	1.06	21.9	7.8	1.38	.322	4.84	105	4.01	96	9.37	17.2
17	Trevor Williams T. Williams	323	1009.0	219	53	65	.449	178	4.46	825	1	1	1	1,065	500	543	146	38	10	12	4,361	11	7.36	2.88	2.55	1.30	18.9	7.4	1.38	.303	4.84	106	4.49	105	9.50	-27.7
18	Luis Severino L. Severino	325	1072.0	201	73	55	.570	185	3.92	1,073	2	2	0	975	467	509	136	54	4	3	4,488	30	9.01	2.73	3.30	1.14	23.9	7.2	1.21	.289	4.27	95	3.86	91	8.19	46.2
19	Sandy Alcantara S. Alcantara	330	1075.1	177	52	67	.437	169	3.65	931	12	4	0	934	436	485	113	44	3	8	4,425	26	7.79	2.76	2.82	0.95	21.0	7.5	1.18	.273	4.06	86	3.85	92	7.82	37.7
20	Lance McCullers Jr. L. McCullers Jr.	335	774.0	146	51	37	.580	140	3.70	861	1	0	0	664	318	344	67	45	2	4	3,291	48	10.01	3.90	2.57	0.78	26.2	10.2	1.29	.301	4.00	90	3.52	84	7.72	56.8
21	Matthew Boyd M. Boyd	336	1088.0	213	60	77	.438	199	4.57	1,045	2	1	0	1,053	553	589	176	53	2	7	4,614	32	8.64	2.78	3.11	1.46	22.6	7.3	1.28	.292	4.87	106	4.42	103	8.71	-14.8
22	Jacob deGrom J. deGrom	345	1539.2	248	96	65	.596	248	2.57	1,851	4	2	0	1,173	440	477	146	25	0	13	6,045	30	10.82	2.02	5.37	0.85	30.6	5.7	0.99	.279	2.79	66	2.70	66	6.86	239.4
23	Sean Manaea S. Manaea	347	1245.0	243	79	66	.545	210	4.08	1,184	3	3	0	1,150	565	611	171	61	5	4	5,196	36	8.56	2.51	3.41	1.24	22.8	6.7	1.20	.285	4.42	100	4.02	98	8.31	14.6
24	Jack Flaherty J. Flaherty	351	990.2	190	63	56	.529	184	3.80	1,130	0	0	0	836	418	440	135	54	0	10	4,120	35	10.27	3.19	3.22	1.23	27.4	8.5	1.20	.286	4.00	93	3.89	94	7.59	28.8
25	Yusei Kikuchi Y. Kikuchi	356	988.0	199	48	58	.453	187	4.46	1,011	1	1	1	986	490	535	165	29	4	3	4,243	36	9.21	3.24	2.84	1.50	23.8	8.4	1.36	.306	4.87	108	4.47	105	8.98	-26.1