Syl Johnson walked the lowest walks per nine innings in 1931, with 1.40 BB/9.

Interpreted as:

pitchers with lowest bb/9 with a minimum of 1 IP per team game in 1931

	NAME	BB/9	SEASON	TM	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	GF	TBF	WP	K/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Syl Johnson S. Johnson	1.40	1931	SLN	32	11	9	.550	24	3.00	82	12	2	2	186.0	186	62	73	9	29	2	6	766	3	3.97	2.83	0.44	10.7	3.8	1.16	.275	3.53	77	3.36	83	9.00	14.1
2	Herb Pennock H. Pennock	1.43	1931	NYY	25	11	6	.647	25	4.28	65	12	1	0	189.1	247	90	96	7	30	1	0	826	3	3.09	2.17	0.33	7.9	3.6	1.46	.332	4.56	103	3.40	84	11.74	13.1
3	Red Lucas R. Lucas	1.47	1931	CIN	29	14	13	.519	29	3.59	56	24	3	0	238.0	261	95	110	10	39	0	0	985	0	2.12	1.44	0.38	5.7	4.0	1.26	.285	4.16	97	3.68	96	9.87	3.7
4	Sam Gray S. Gray	1.88	1931	SLA	43	11	24	.314	37	5.09	88	13	0	2	258.0	323	146	187	20	54	4	5	1,158	4	3.07	1.63	0.70	7.6	4.7	1.46	.305	6.52	111	4.11	92	11.27	10.3
5	Lefty Grove L. Grove	1.93	1931	PHA	41	31	4	.886	30	2.06	175	27	4	5	288.2	249	66	84	10	62	1	10	1,160	2	5.46	2.82	0.31	15.1	5.3	1.08	.262	2.62	47	3.01	70	7.76	40.8
6	Ben Cantwell B. Cantwell	1.96	1931	BSN	33	7	9	.438	16	3.63	32	9	2	2	156.1	160	63	73	4	34	0	8	659	4	1.84	0.94	0.23	4.9	5.2	1.24	.265	4.20	98	3.69	96	9.21	2.3
7	Watty Clark W. Clark	2.01	1931	BKN	34	14	10	.583	28	3.20	96	16	3	1	233.1	243	83	86	4	52	1	2	981	3	3.70	1.85	0.15	9.8	5.3	1.26	.289	3.32	85	3.19	81	9.37	18.9
8	Tom Zachary T. Zachary	2.08	1931	BSN	33	11	15	.423	28	3.10	64	16	3	2	229.0	243	79	87	8	53	1	3	963	4	2.52	1.21	0.31	6.6	5.5	1.29	.281	3.42	84	3.72	97	9.55	2.6
9	Clint Brown C. Brown	2.12	1931	CLE	39	11	15	.423	33	4.71	50	12	2	0	233.1	284	122	143	10	55	1	4	1,028	2	1.93	0.91	0.39	4.9	5.4	1.45	.300	5.52	102	3.96	89	10.95	13
10	Dazzy Vance D. Vance	2.18	1931	BKN	30	11	13	.458	29	3.38	150	12	2	0	218.2	221	82	99	12	53	0	1	918	1	6.17	2.83	0.49	16.3	5.8	1.25	.297	4.07	89	3.18	81	9.10	18
11	Freddie Fitzsimmons F. Fitzsimmons	2.20	1931	NYG	35	18	11	.621	33	3.05	78	19	4	0	253.2	242	86	111	16	62	0	1	1,045	5	2.77	1.26	0.57	7.5	5.9	1.20	.254	3.94	81	4.05	104	8.59	-5.5
12	Ray Benge R. Benge	2.22	1931	PHN	38	14	18	.438	31	3.17	117	16	2	2	247.0	251	87	107	12	61	5	7	1,044	2	4.26	1.92	0.44	11.2	5.8	1.26	.282	3.90	73	3.60	80	9.15	23.9
13	George Blaeholder G. Blaeholder	2.23	1931	SLA	35	11	15	.423	32	4.53	79	13	1	0	226.1	280	114	137	15	56	1	3	1,014	0	3.14	1.41	0.60	7.8	5.5	1.48	.307	5.45	99	4.03	91	11.13	10.9
14	Erv Brame E. Brame	2.25	1931	PIT	26	9	13	.409	21	4.21	33	15	2	0	179.2	211	84	102	13	45	0	4	781	0	1.65	0.73	0.65	4.2	5.8	1.42	.287	5.11	110	4.44	112	10.57	-9.7
15	George Uhle G. Uhle	2.28	1931	DET	29	11	12	.478	18	3.50	63	15	2	2	193.0	190	75	88	10	49	4	11	808	6	2.94	1.29	0.47	7.8	6.1	1.24	.264	4.10	78	3.96	91	8.86	9
16	Larry French L. French	2.29	1931	PIT	39	15	13	.536	33	3.26	73	20	1	1	275.2	301	100	127	9	70	1	4	1,170	5	2.38	1.04	0.29	6.2	6.0	1.35	.287	4.15	85	3.78	95	9.83	5.5
17	Bob Smith B. Smith	2.32	1931	CHC	36	15	12	.556	29	3.22	63	18	2	2	240.1	239	86	101	10	62	1	5	1,004	1	2.36	1.02	0.37	6.3	6.2	1.25	.264	3.78	83	3.92	98	8.95	2.4
18	Larry Benton L. Benton	2.33	1931	CIN	38	10	15	.400	23	3.35	35	12	2	2	204.1	240	76	98	6	53	1	11	878	4	1.54	0.66	0.26	4.0	6.0	1.43	.299	4.32	90	3.94	103	10.57	-3.1
19	George Earnshaw G. Earnshaw	2.40	1931	PHA	43	21	7	.750	30	3.67	152	23	3	6	281.2	255	115	130	16	75	3	11	1,174	5	4.86	2.03	0.51	12.9	6.4	1.17	.258	4.15	83	3.60	84	8.15	21.3
20	Bill Walker B. Walker	2.41	1931	NYG	37	16	9	.640	28	2.26	121	19	6	5	239.1	212	60	78	6	64	3	7	991	2	4.55	1.89	0.23	12.2	6.5	1.15	.258	2.93	60	3.27	84	7.97	16.3
21	Carl Hubbell C. Hubbell	2.43	1931	NYG	36	14	12	.538	30	2.65	155	21	4	3	248.0	211	73	88	14	67	4	5	1,010	3	5.63	2.31	0.51	15.3	6.6	1.12	.256	3.19	71	3.46	89	7.66	11.5
22	Clarence Mitchell C. Mitchell	2.46	1931	NYG	27	13	11	.542	25	4.07	39	13	0	0	190.1	221	86	103	12	52	3	1	839	1	1.84	0.75	0.57	4.6	6.2	1.43	.285	4.87	109	4.39	113	10.45	-11.5
23	Burleigh Grimes B. Grimes	2.50	1931	SLN	29	17	9	.654	28	3.65	67	17	3	0	212.1	240	86	97	11	59	10	1	914	2	2.84	1.14	0.47	7.3	6.5	1.41	.299	4.11	93	4.13	102	10.17	-1.8
24	Jack Russell J. Russell	2.52	1931	BSA	36	10	18	.357	31	5.16	45	13	0	0	232.0	298	133	145	7	65	2	3	1,041	3	1.75	0.69	0.27	4.3	6.2	1.56	.316	5.63	120	3.98	96	11.56	4.1
25	Tommy Thomas T. Thomas	2.53	1931	CWS	43	10	14	.417	36	4.73	72	11	2	2	245.1	298	129	166	17	69	5	5	1,105	4	2.64	1.04	0.62	6.5	6.2	1.50	.298	6.09	111	4.33	105	10.93	-6.8