Since 2021, George Kirby has walked the lowest walks per nine innings, with 1.27 BB/9.

Interpreted as:

lowest bb/9 with a minimum of 0.5 IP per team game by a player since 2021

	NAME	BB/9	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	George Kirby G. Kirby	1.27	104	42	31	.575	104	3.47	574	1	0	0	596.2	566	230	245	66	84	22	0	1	2,419	12	8.66	6.83	1.00	23.7	3.5	1.09	.299	3.70	90	3.22	81	8.54	51
2	Zach Eflin Z. Eflin	1.39	111	39	34	.534	104	4.00	534	0	0	1	595.2	598	265	278	82	92	16	2	4	2,451	5	8.07	5.80	1.24	21.8	3.8	1.16	.299	4.20	99	3.71	90	9.04	26.5
3	Shota Imanaga S. Imanaga	1.50	46	23	8	.742	46	3.01	253	0	0	0	269.1	225	90	101	44	45	4	0	0	1,071	3	8.45	5.62	1.47	23.6	4.2	1.00	.250	3.38	75	3.93	98	7.52	1.6
4	Spencer Schwellenbach S. Schwellenbach	1.57	38	15	11	.577	38	3.23	235	1	0	0	234.1	195	84	93	27	41	8	0	2	934	5	9.03	5.73	1.04	25.2	4.4	1.01	.270	3.57	77	3.25	81	7.49	19.5
5	Miles Mikolas M. Mikolas	1.70	132	39	49	.443	131	4.50	522	1	0	0	737.2	759	369	388	104	139	23	0	0	3,072	7	6.37	3.76	1.27	17.0	4.5	1.22	.287	4.73	110	4.24	104	9.26	-15.5
6	Colton Gordon C. Gordon	1.70	15	4	4	.500	13	5.64	62	0	0	0	68.2	91	43	46	17	13	2	1	2	310	3	8.13	4.77	2.23	20.0	4.2	1.51	.343	6.03	141	5.17	126	11.93	-8.1
7	Zack Greinke Z. Greinke	1.72	86	17	30	.362	82	4.30	290	1	0	0	450.1	479	215	229	69	86	9	0	0	1,875	12	5.80	3.37	1.38	15.5	4.6	1.25	.289	4.58	100	4.51	109	9.57	-18.4
8	Bryan Woo B. Woo	1.77	63	21	14	.600	63	3.30	339	0	0	0	355.0	284	130	138	49	70	13	0	1	1,417	3	8.59	4.84	1.24	23.9	4.9	1.00	.248	3.50	85	3.74	94	7.20	9.8
9	Zack Littell Z. Littell	1.86	183	27	27	.500	69	3.75	417	1	0	3	497.1	492	207	218	77	103	17	24	3	2,064	11	7.55	4.05	1.39	20.2	5.0	1.20	.286	3.95	95	4.21	105	8.90	-11.4
10	Ross Stripling R. Stripling	1.93	100	17	26	.395	68	4.59	324	0	0	1	410.0	429	209	223	62	88	7	11	2	1,729	4	7.11	3.68	1.36	18.7	5.1	1.26	.294	4.90	112	4.24	103	9.42	-7.5
11	Julio Urías J. Urías	1.94	84	48	18	.727	84	3.07	478	0	0	0	478.0	390	163	179	66	103	18	0	3	1,916	4	9.00	4.64	1.24	24.9	5.4	1.03	.259	3.37	75	3.72	88	7.34	27.3
12	Aaron Nola A. Nola	1.94	138	47	46	.505	138	4.09	909	4	3	0	828.1	759	376	394	118	179	25	0	2	3,389	7	9.88	5.08	1.28	26.8	5.3	1.13	.297	4.28	97	3.56	84	8.25	61.9
13	Bailey Ober B. Ober	1.96	108	29	28	.509	108	4.02	570	2	0	0	579.2	523	259	269	97	126	20	0	0	2,362	4	8.85	4.52	1.51	24.1	5.3	1.12	.275	4.18	98	4.13	99	8.12	1.4
14	Logan Gilbert L. Gilbert	1.96	138	43	34	.558	138	3.57	835	2	1	0	794.0	664	315	335	103	173	22	0	6	3,203	38	9.46	4.83	1.17	26.1	5.4	1.05	.271	3.80	92	3.48	87	7.53	44.8
15	Tarik Skubal T. Skubal	1.96	122	51	30	.630	120	3.06	801	1	1	0	691.2	555	235	252	76	151	23	1	0	2,755	10	10.42	5.30	0.99	29.1	5.5	1.02	.281	3.28	75	3.02	73	7.22	83.8
16	Logan Webb L. Webb	1.98	150	59	42	.584	149	3.21	855	3	2	0	915.0	863	326	356	62	201	26	0	3	3,716	15	8.41	4.25	0.61	23.0	5.4	1.16	.311	3.50	79	2.92	73	8.49	111.8
17	Max Scherzer M. Scherzer	1.99	99	43	21	.672	99	3.01	675	1	0	0	574.2	439	192	200	82	127	28	0	0	2,272	8	10.57	5.31	1.28	29.7	5.6	0.98	.263	3.13	74	3.48	83	6.88	45.3
18	Hyun Jin Ryu H. Jin Ryu	2.00	48	19	13	.594	48	4.32	197	1	1	0	248.0	255	119	127	38	55	3	0	0	1,038	3	7.15	3.58	1.38	19.0	5.3	1.25	.291	4.61	99	4.28	101	9.25	-1.6
19	Joe Ryan J. Ryan	2.01	108	45	31	.592	107	3.65	678	1	1	0	609.1	497	247	258	91	136	32	0	0	2,457	8	10.01	4.99	1.34	27.6	5.5	1.04	.267	3.81	90	3.70	90	7.34	28
20	Zack Wheeler Z. Wheeler	2.01	145	65	35	.650	145	2.90	1,035	4	2	0	903.0	704	291	314	87	202	40	0	2	3,595	17	10.32	5.12	0.87	28.8	5.6	1.00	.277	3.13	69	2.93	69	7.02	130.6
21	Nathan Eovaldi N. Eovaldi	2.06	126	51	28	.646	126	3.43	710	5	3	0	722.1	642	275	294	82	165	28	0	3	2,942	19	8.85	4.30	1.02	24.1	5.6	1.12	.286	3.66	81	3.47	82	8.00	60.3
22	Jameson Taillon J. Taillon	2.08	136	49	35	.583	135	4.10	630	0	0	1	736.2	694	336	362	120	170	17	1	1	3,049	14	7.70	3.71	1.47	20.7	5.6	1.17	.272	4.42	101	4.33	105	8.48	-18
23	Clayton Kershaw C. Kershaw	2.09	89	43	20	.683	89	2.92	488	0	0	0	481.1	406	156	174	52	112	12	0	1	1,933	19	9.12	4.36	0.97	25.2	5.8	1.08	.279	3.25	71	3.31	78	7.59	49.3
24	Cole Irvin C. Irvin	2.10	115	26	38	.406	90	4.35	399	0	0	1	547.2	579	265	294	77	128	29	10	4	2,337	10	6.56	3.12	1.27	17.1	5.5	1.29	.295	4.83	111	4.39	109	9.51	-23.6
25	Ryan Yarbrough R. Yarbrough	2.11	135	28	25	.528	47	4.36	359	1	0	2	478.2	465	232	245	71	112	42	23	5	2,009	5	6.75	3.21	1.33	17.9	5.6	1.21	.276	4.61	107	4.56	111	8.74	-23.7