lowest season bb/9 by a pitcher with 250 ip since 1920

Since 1920, Babe Adams has walked the lowest walks per nine innings with 250.0+ innings pitched in a season, with 0.62 BB/9 in 1920.

Interpreted as:

lowest season bb/9 by a pitcher with 250 or more ip since 1920

	NAME	BB/9	IP	SEASON	TM	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	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	Babe Adams B. Adams	0.62	263.0	1920	PIT	35	17	13	.567	33	2.16	84	18	8	2	240	63	83	6	18	1	2		1,035	5	2.87	4.67	0.21	8.1	1.7	0.98	.253	2.84	68	2.62	79	8.21	20.2
2	Grover Alexander G. Alexander	0.89	305.0	1923	CHC	39	22	12	.647	36	3.19	72	26	3	2	308	108	128	17	30	0	2		1,246	2	2.12	2.40	0.50	5.8	2.4	1.11	.258	3.78	79	3.48	87	9.09	17.9
3	Fergie Jenkins F. Jenkins	1.02	325.0	1971	CHC	39	24	13	.649	39	2.77	263	30	3	0	304	100	114	29	37	5	0	6	1,299	3	7.28	7.11	0.80	20.2	2.8	1.05	.285	3.16	73	2.38	64	8.42	45.3
4	Paul Derringer P. Derringer	1.05	301.0	1939	CIN	38	25	7	.781	35	2.93	128	28	5	0	321	98	115	15	35	3	1		1,245	2	3.83	3.66	0.45	10.3	2.8	1.18	.288	3.44	77	3.15	80	9.60	27.2
5	Juan Marichal J. Marichal	1.05	307.1	1966	SFG	37	25	6	.806	36	2.23	222	25	4	0	228	76	88	32	36	5	1	3	1,180	3	6.50	6.17	0.94	18.8	3.1	0.86	.221	2.58	62	2.86	82	6.68	21.3
6	Carl Hubbell C. Hubbell	1.06	313.0	1934	NYG	49	21	12	.636	35	2.30	118	25	5	8	286	80	100	17	37	2	11		1,255	2	3.39	3.19	0.49	9.4	2.9	1.03	.249	2.88	58	3.45	87	8.22	18.2
7	LaMarr Hoyt L. Hoyt	1.07	260.2	1983	CWS	36	24	10	.706	36	3.66	148	11	1	0	236	106	115	27	31	1	0	4	1,034	1	5.11	4.77	0.93	14.3	3.0	1.02	.253	3.97	88	3.32	82	8.15	20.5
8	Roy Halladay R. Halladay	1.08	250.2	2010	PHI	33	21	10	.677	33	2.44	219	9	4	0	231	68	74	24	30	6	0	1	993	5	7.86	7.30	0.86	22.1	3.0	1.04	.290	2.66	61	3.00	75	8.29	27.6
9	Roy Halladay R. Halladay	1.08	266.0	2003	TOR	36	22	7	.759	36	3.25	204	9	2	0	253	96	111	26	32	9	0	1	1,071	6	6.90	6.38	0.88	19.0	3.0	1.07	.284	3.76	70	3.22	71	8.56	38.6
10	Lew Burdette L. Burdette	1.09	272.1	1961	MIL	40	18	11	.621	36	4.00	92	14	3	0	295	121	131	31	33	3	4	3	1,126	1	3.04	2.79	1.02	8.2	2.9	1.20	.273	4.33	104	3.77	101	9.75	-1.9
11	Lew Burdette L. Burdette	1.14	275.2	1960	MIL	45	19	13	.594	32	3.36	83	18	4	4	277	103	116	19	35	5	9	7	1,117	2	2.71	2.37	0.62	7.4	3.1	1.13	.265	3.79	96	3.26	96	9.04	3.1
12	Curt Schilling C. Schilling	1.15	259.1	2002	ARI	36	23	7	.767	35	3.23	316	5	1	0	218	93	95	29	33	3	0	1	1,017	6	10.97	9.58	1.01	31.1	3.2	0.97	.297	3.30	75	2.39	55	7.57	54.3
13	Red Lucas R. Lucas	1.17	269.1	1932	CIN	31	13	17	.433	31	2.94	63	28	0	0	261	88	110	10	35	1	0		1,104	0	2.11	1.80	0.33	5.7	3.2	1.10	.252	3.68	78	3.43	89	8.72	12.7
14	Grover Alexander G. Alexander	1.18	252.0	1921	CHC	31	15	13	.536	30	3.39	77	20	3	1	286	95	110	10	33	1	1		1,033	1	2.75	2.33	0.36	7.5	3.2	1.27	.303	3.93	90	3.41	88	10.21	13.4
15	Lew Burdette L. Burdette	1.18	289.2	1959	MIL	41	21	15	.583	39	4.07	105	20	4	1	312	131	144	38	38	1	2	3	1,193	2	3.26	2.76	1.18	8.8	3.2	1.21	.271	4.47	113	3.93	112	9.69	-16.1
16	Robin Roberts R. Roberts	1.21	297.1	1956	PHI	43	19	18	.514	37	4.45	157	22	1	3	328	147	155	46	40	2	6	3	1,228	2	4.75	3.93	1.39	12.8	3.3	1.24	.287	4.69	119	3.75	97	9.93	3.8
17	Robin Roberts R. Roberts	1.22	257.1	1959	PHI	35	15	17	.469	35	4.27	137	19	2	0	267	122	137	34	35	5	0	4	1,075	1	4.79	3.91	1.19	12.7	3.3	1.17	.270	4.79	108	3.66	95	9.34	5.9
18	Robin Roberts R. Roberts	1.23	330.0	1952	PHN	39	28	7	.800	37	2.59	148	30	3	2	292	95	104	22	45	5	2		1,310	3	4.04	3.29	0.60	11.3	3.4	1.02	.248	2.84	72	2.82	78	7.96	28.9
19	Pete Donohue P. Donohue	1.23	285.2	1926	CIN	47	20	14	.588	36	3.37	73	17	5	2	298	107	133	6	39	9	8		1,191	1	2.30	1.87	0.19	6.1	3.3	1.18	.274	4.19	92	3.18	86	9.39	15.4
20	Fergie Jenkins F. Jenkins	1.23	328.1	1974	TEX	41	25	12	.676	41	2.82	225	29	6	0	286	103	117	27	45	8	0	3	1,305	4	6.17	5.00	0.74	17.2	3.4	1.01	.259	3.21	79	2.75	77	7.84	29.4
21	Bill Hands B. Hands	1.25	258.2	1968	CHC	38	16	10	.615	34	2.89	148	11	4	0	221	83	91	26	36	6	0	0	1,013	4	5.15	4.11	0.90	14.6	3.6	0.99	.245	3.17	90	3.03	100	7.69	0.5
22	Carl Hubbell C. Hubbell	1.27	284.0	1932	NYG	40	18	11	.621	32	2.50	137	22	0	2	260	79	96	20	40	4	7		1,151	3	4.34	3.43	0.63	11.9	3.5	1.06	.253	3.04	67	3.43	89	8.24	13.4
23	Juan Marichal J. Marichal	1.27	325.2	1968	SFG	38	26	9	.743	38	2.43	218	30	5	0	295	88	106	21	46	6	0	9	1,307	8	6.02	4.74	0.58	16.7	3.5	1.05	.270	2.93	83	2.36	85	8.15	14.6
24	Grover Alexander G. Alexander	1.28	268.0	1927	SLN	37	21	10	.677	30	2.52	48	22	2	3	261	75	94	11	38	1	5		1,082	1	1.61	1.26	0.37	4.4	3.5	1.12	.254	3.16	64	3.64	91	8.76	10.6
25	Eppa Rixey E. Rixey	1.29	313.1	1922	CIN	40	25	13	.658	38	3.53	80	26	2	0	337	123	146	13	45	4	2		1,303	3	2.30	1.78	0.37	6.1	3.5	1.22	.279	4.19	91	3.51	91	9.68	10.4