Gavin Williams walked the best walks per nine innings this season, with 4.46 BB/9.

Interpreted as:

highest bb/9 with a minimum of 1 IP per team game by a player with over 2000ip this regular season

	NAME	BB/9	SEASON	TM	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	Gavin Williams G. Williams	4.46	2025	CLE	31	12	5	.706	31	3.06	173	0	0	0	167.2	130	57	62	23	83	3	0	0	704	9	9.29	2.08	1.23	24.6	11.8	1.27	.254	3.33	76	4.39	106	6.98	-4.9
2	José Soriano J. Soriano	4.15	2025	LAA	31	10	11	.476	31	4.26	152	0	0	0	169.0	158	80	89	12	78	5	0	0	724	8	8.09	1.95	0.64	21.0	10.8	1.40	.306	4.74	102	3.73	87	8.41	10.6
3	Dylan Cease D. Cease	3.80	2025	SDP	32	8	12	.400	32	4.55	215	0	0	0	168.0	152	85	91	21	71	5	0	2	722	5	11.52	3.03	1.13	29.8	9.8	1.33	.320	4.88	113	3.55	87	8.14	10.1
4	Yusei Kikuchi Y. Kikuchi	3.73	2025	LAA	33	7	11	.389	33	3.99	174	0	0	0	178.1	180	79	87	24	74	3	0	3	772	8	8.78	2.35	1.21	22.5	9.6	1.42	.314	4.39	96	4.22	98	9.08	1.6
5	Will Warren W. Warren	3.60	2025	NYY	33	9	8	.529	33	4.44	171	0	0	0	162.1	158	80	90	22	65	4	0	0	711	2	9.48	2.63	1.22	24.1	9.1	1.37	.303	4.99	109	4.06	94	8.76	4.4
6	Robbie Ray R. Ray	3.60	2025	SFG	32	11	8	.579	32	3.65	186	1	0	0	182.1	148	74	81	22	73	4	0	0	755	7	9.18	2.55	1.09	24.6	9.7	1.21	.268	4.00	89	3.92	99	7.31	0.6
7	Clay Holmes C. Holmes	3.59	2025	NYM	33	12	8	.600	31	3.53	129	0	0	0	165.2	150	65	74	14	66	13	0	0	708	6	7.01	1.95	0.76	18.2	9.3	1.30	.280	4.02	87	4.10	100	8.15	-0.2
8	David Peterson D. Peterson	3.47	2025	NYM	30	9	6	.600	30	4.22	150	1	1	0	168.2	166	79	84	11	65	7	0	1	723	3	8.00	2.31	0.59	20.7	9.0	1.37	.316	4.48	104	3.48	85	8.86	11.5
9	Shane Baz S. Baz	3.46	2025	TBR	31	10	12	.455	31	4.87	176	0	0	0	166.1	158	90	91	26	64	9	0	0	711	3	9.52	2.75	1.41	24.8	9.0	1.33	.303	4.92	124	4.36	108	8.55	-6.2
10	Andre Pallante A. Pallante	3.43	2025	STL	31	6	15	.286	31	5.31	111	0	0	0	162.2	173	96	109	21	62	5	0	0	715	12	6.14	1.79	1.16	15.5	8.7	1.44	.295	6.03	129	4.68	116	9.57	-11.7
11	Carlos Rodón C. Rodón	3.36	2025	NYY	33	18	9	.667	33	3.09	203	0	0	0	195.1	132	67	74	22	73	9	0	0	789	4	9.35	2.78	1.01	25.7	9.3	1.05	.228	3.41	76	3.77	88	6.08	11.3
12	Freddy Peralta F. Peralta	3.36	2025	MIL	33	17	6	.739	33	2.70	204	0	0	0	176.2	124	53	54	21	66	9	0	0	723	4	10.39	3.09	1.07	28.2	9.1	1.08	.243	2.75	64	3.64	87	6.32	10.5
13	Ryan Pepiot R. Pepiot	3.27	2025	TBR	31	11	12	.478	31	3.86	167	0	0	0	167.2	134	72	77	26	61	6	0	0	679	5	8.96	2.74	1.40	24.6	9.0	1.16	.258	4.13	98	4.35	108	7.19	-6.1
14	Framber Valdez F. Valdez	3.19	2025	HOU	31	13	11	.542	31	3.66	187	2	0	0	192.0	171	78	82	15	68	7	0	0	802	12	8.77	2.75	0.70	23.3	8.5	1.24	.297	3.84	90	3.37	82	8.02	16.3
15	Brayan Bello B. Bello	3.19	2025	BOS	29	11	9	.550	28	3.35	124	1	0	0	166.2	147	62	71	16	59	13	0	0	700	5	6.70	2.10	0.86	17.7	8.4	1.24	.268	3.83	77	4.18	99	7.94	0.6
16	Brady Singer B. Singer	3.18	2025	CIN	32	14	12	.538	32	4.03	163	0	0	0	169.2	150	76	80	19	60	14	0	0	716	3	8.65	2.72	1.01	22.8	8.4	1.24	.285	4.24	90	3.97	91	7.96	7.7
17	Mitchell Parker M. Parker	3.17	2025	WSH	33	9	16	.360	30	5.68	103	0	0	1	164.2	178	104	116	25	58	4	2	0	725	3	5.63	1.78	1.37	14.2	8.0	1.43	.286	6.34	136	4.98	119	9.73	-14.6
18	Jake Irvin J. Irvin	3.10	2025	WSH	33	9	13	.409	33	5.70	124	0	0	0	180.0	195	114	120	38	62	6	0	0	787	3	6.20	2.00	1.90	15.8	7.9	1.43	.282	6.00	137	5.63	135	9.75	-28.7
19	Zac Gallen Z. Gallen	3.09	2025	AZ	33	13	15	.464	33	4.83	175	0	0	0	192.0	176	103	109	31	66	4	0	1	813	2	8.20	2.65	1.45	21.5	8.1	1.26	.270	5.11	113	4.50	112	8.25	-11
20	Yoshinobu Yamamoto Y. Yamamoto	3.06	2025	LAD	30	12	8	.600	30	2.49	201	0	0	0	173.2	113	48	53	14	59	3	0	0	684	5	10.42	3.41	0.73	29.4	8.6	0.99	.243	2.75	60	2.93	70	5.86	24.4
21	José Berríos J. Berríos	3.04	2025	TOR	31	9	5	.643	30	4.17	138	0	0	0	166.0	160	77	86	26	56	7	0	2	698	1	7.48	2.46	1.41	19.8	8.0	1.30	.285	4.66	103	4.64	111	8.67	-8.6
22	Sandy Alcantara S. Alcantara	2.94	2025	MIA	31	11	12	.478	31	5.36	142	0	0	0	174.2	165	104	107	22	57	9	0	0	745	8	7.32	2.49	1.13	19.1	7.7	1.27	.278	5.51	125	4.27	103	8.50	-2.7
23	Jeffrey Springs J. Springs	2.84	2025	ATH	32	11	11	.500	30	4.11	138	0	0	0	171.0	153	78	90	28	54	3	0	0	713	0	7.26	2.56	1.47	19.4	7.6	1.21	.255	4.74	100	4.64	111	8.05	-9
24	Jesús Luzardo J. Luzardo	2.79	2025	PHI	32	15	7	.682	32	3.92	216	0	0	0	183.2	167	80	85	16	57	3	0	0	758	2	10.58	3.79	0.78	28.5	7.5	1.22	.324	4.17	93	2.89	69	8.18	26.7
25	Hunter Brown H. Brown	2.77	2025	HOU	31	12	9	.571	31	2.43	206	1	0	0	185.1	133	50	55	17	57	7	0	1	729	0	10.00	3.61	0.83	28.3	7.8	1.03	.262	2.67	60	3.13	76	6.46	20.6