Blake Snell has walked the best walks per nine innings by a Cy Young winner in a season, with 4.95 BB/9 in 2023.

Interpreted as:

highest bb/9 for a cy young award in a regular season by a player

	NAME	BB/9	CY	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	Blake Snell B. Snell	4.95	1	2023	SDP	32	14	9	.609	32	2.25	234	0	0	0	180.0	115	45	47	15	99	3	0	0	742	13	11.70	2.36	0.75	31.5	13.3	1.19	.256	2.35	54	3.43	79	5.75	18
2	Bob Turley B. Turley	4.70	1	1958	NYY	33	21	7	.750	31	2.97	168	19	6	1	245.1	178	81	82	24	128	8	1	2	1,013	6	6.16	1.31	0.88	16.6	12.6	1.25	.225	3.01	83	4.04	112	6.53	-13
3	Early Wynn E. Wynn	4.19	1	1959	CWS	37	22	10	.688	37	3.17	179	14	5	0	255.2	202	90	106	20	119	9	0	5	1,076	5	6.30	1.50	0.70	16.6	11.1	1.26	.243	3.73	84	3.66	95	7.11	5.5
4	Pete Vuckovich P. Vuckovich	4.10	1	1982	MIL	30	18	6	.750	30	3.34	105	9	1	0	223.2	234	83	96	14	102	5	0	1	971	6	4.23	1.03	0.56	10.8	10.5	1.50	.295	3.86	87	4.02	102	9.42	-2.6
5	Steve Stone S. Stone	3.63	1	1980	BAL	37	25	7	.781	37	3.23	149	9	1	0	250.2	224	90	103	22	101	6	0	3	1,048	7	5.35	1.48	0.79	14.2	9.6	1.30	.262	3.70	83	3.98	101	8.04	-1.1
6	Jim Palmer J. Palmer	3.43	1	1973	BAL	38	22	9	.710	37	2.40	158	19	6	1	296.1	225	79	86	16	113	3	1	5	1,190	7	4.80	1.40	0.49	13.3	9.5	1.14	.232	2.61	65	3.37	91	6.83	10.3
7	Roger Clemens R. Clemens	3.38	1	1998	TOR	33	20	6	.769	33	2.65	271	5	3	0	234.2	169	69	78	11	88	7	0	0	961	6	10.39	3.08	0.42	28.2	9.2	1.10	.271	2.99	57	2.65	59	6.48	49.2
8	Tim Lincecum T. Lincecum	3.33	1	2008	SFG	34	18	5	.783	33	2.62	265	2	1	0	227.0	182	66	72	11	84	6	0	1	928	17	10.51	3.15	0.44	28.6	9.1	1.17	.304	2.85	61	2.61	62	7.22	41.5
9	Roger Clemens R. Clemens	3.32	1	2004	HOU	33	18	4	.818	33	2.98	218	0	0	0	214.1	169	71	76	15	79	6	0	5	878	5	9.15	2.76	0.63	24.8	9.0	1.16	.275	3.19	69	3.11	70	7.10	31.7
10	Blake Snell B. Snell	3.19	1	2018	TBR	31	21	5	.808	31	1.89	221	0	0	0	180.2	112	38	41	16	64	1	0	2	700	13	11.01	3.45	0.80	31.6	9.1	0.97	.241	2.04	46	2.94	72	5.58	23.1
11	Pat Hentgen P. Hentgen	3.18	1	1996	TOR	35	20	10	.667	35	3.22	177	10	3	0	265.2	238	95	105	20	94	5	0	3	1,100	8	6.00	1.88	0.68	16.1	8.5	1.25	.271	3.56	65	3.93	80	8.06	29.1
12	Rick Sutcliffe R. Sutcliffe	3.13	1	1984	TOT	35	20	6	.769	35	3.64	213	9	3	0	244.2	234	99	113	16	85	3	0	3	1,030	6	7.84	2.51	0.59	20.7	8.3	1.30	.306	4.16	92	2.95	75	8.61	24.4
13	Barry Zito B. Zito	3.06	1	2002	OAK	35	23	5	.821	35	2.75	182	1	0	0	229.1	182	70	79	24	78	9	0	2	939	2	7.14	2.33	0.94	19.4	8.3	1.13	.245	3.10	63	3.86	89	7.14	12.6
14	Mark Davis M. Davis	3.01	1	1989	SDP	70	4	3	.571	0	1.85	92	0	0	44	92.2	66	19	21	6	31	2	65	1	370	8	8.94	2.97	0.58	24.9	8.4	1.05	.251	2.04	53	2.68	74	6.41	9.8
15	Roger Clemens R. Clemens	2.94	1	2001	NYY	33	20	3	.870	33	3.51	213	0	0	0	220.1	205	86	94	19	72	5	0	1	918	14	8.70	2.96	0.78	23.2	7.8	1.26	.305	3.84	80	3.28	74	8.37	28.1
16	Whitey Ford W. Ford	2.93	1	1961	NYY	39	25	4	.862	39	3.21	209	11	3	0	283.0	242	101	108	23	92	1	0	3	1,159	8	6.65	2.27	0.73	18.0	7.9	1.18	.263	3.43	85	3.14	82	7.70	22.7
17	Bob Welch B. Welch	2.91	1	1990	OAK	35	27	6	.818	35	2.95	127	2	2	0	238.0	214	78	90	26	77	5	0	4	979	2	4.80	1.65	0.98	13.0	7.9	1.22	.253	3.40	79	4.19	110	8.09	-11.1
18	Tom Glavine T. Glavine	2.90	1	1998	ATL	33	20	6	.769	33	2.47	157	4	3	0	229.1	202	63	67	13	74	2	0	2	934	3	6.16	2.12	0.51	16.8	7.9	1.20	.275	2.63	59	3.49	82	7.93	19.6
19	Fernando Valenzuela F. Valenzuela	2.85	1	1981	LAD	25	13	7	.650	25	2.48	180	11	8	0	192.1	140	53	55	11	61	1	0	4	758	4	8.42	2.95	0.51	23.7	8.0	1.05	.255	2.57	73	2.44	72	6.55	20.4
20	Bruce Sutter B. Sutter	2.84	1	1979	CHC	62	6	6	.500	0	2.22	110	0	0	37	101.1	67	25	29	3	32	0	56	5	403	9	9.77	3.44	0.27	27.3	7.9	0.98	.248	2.58	54	1.88	48	5.95	22.5
21	Steve Bedrosian S. Bedrosian	2.83	1	1987	PHI	65	5	3	.625	0	2.83	74	0	0	40	89.0	79	28	31	11	28	1	56	5	366	3	7.48	2.64	1.11	20.2	7.7	1.20	.270	3.13	67	3.78	92	7.99	3.4
22	David Cone D. Cone	2.83	1	1994	KCR	23	16	5	.762	23	2.94	132	4	3	0	171.2	130	56	60	15	54	7	0	0	690	5	6.92	2.44	0.79	19.1	7.8	1.07	.239	3.15	61	3.79	81	6.82	17.2
23	Steve Carlton S. Carlton	2.83	1	1977	PHI	36	23	10	.697	36	2.64	198	17	2	0	283.0	229	83	99	25	89	4	0	5	1,135	3	6.30	2.22	0.80	17.4	7.8	1.12	.249	3.15	67	3.46	88	7.28	15.2
24	Tom Seaver T. Seaver	2.83	1	1975	NYM	36	22	9	.710	36	2.38	243	15	5	0	280.1	217	74	81	11	88	4	0	6	1,115	7	7.80	2.76	0.35	21.8	7.9	1.09	.268	2.60	68	2.34	66	6.97	37.3
25	Dean Chance D. Chance	2.78	1	1964	LAA	46	20	9	.690	35	1.65	207	15	11	4	278.1	194	51	56	7	86	2	7	9	1,093	9	6.69	2.41	0.23	18.9	7.9	1.01	.236	1.81	48	2.39	67	6.27	37.9