Paul Derringer walked the lowest walks per nine innings in 1939, with 1.05 BB/9.

Interpreted as:

pitchers with lowest bb/9 with a minimum of 1 IP per team game in 1939

	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	Paul Derringer P. Derringer	1.05	1939	CIN	38	25	7	.781	35	2.93	128	28	5	0	301.0	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
2	Ted Lyons T. Lyons	1.36	1939	CWS	21	14	6	.700	21	2.76	65	16	0	0	172.2	162	53	71	7	26	1	0	702	0	3.39	2.50	0.36	9.3	3.7	1.09	.257	3.70	60	3.22	73	8.44	23
3	Carl Hubbell C. Hubbell	1.40	1939	NYG	29	11	9	.550	18	2.75	62	10	0	2	154.0	150	47	60	11	24	2	8	639	2	3.62	2.58	0.64	9.7	3.8	1.13	.257	3.51	69	3.60	87	8.77	8.9
4	Curt Davis C. Davis	1.74	1939	SLN	49	22	16	.579	31	3.63	70	13	3	7	248.0	279	100	121	18	48	3	14	1,059	2	2.54	1.46	0.65	6.6	4.5	1.32	.284	4.39	88	3.97	93	10.13	9.1
5	Luke Hamlin L. Hamlin	1.80	1939	BKN	40	20	13	.606	36	3.64	88	19	2	0	269.2	255	109	115	27	54	0	2	1,100	2	2.94	1.63	0.90	8.0	4.9	1.15	.245	3.84	90	4.22	101	8.51	-0.1
6	Charlie Root C. Root	1.83	1939	CHC	35	8	8	.500	16	4.03	65	8	0	4	167.1	189	75	83	11	34	2	12	709	0	3.50	1.91	0.59	9.2	4.8	1.33	.298	4.46	103	3.70	91	10.17	7.1
7	Dutch Leonard D. Leonard	1.97	1939	WSH	34	20	8	.714	34	3.54	88	21	2	0	269.1	273	106	124	16	59	5	0	1,133	6	2.94	1.49	0.53	7.8	5.2	1.23	.266	4.14	81	3.80	90	9.12	12.5
8	Joe Bowman J. Bowman	2.10	1939	PIT	37	10	14	.417	27	4.48	58	10	1	1	184.2	217	92	105	15	43	7	8	813	1	2.83	1.35	0.73	7.1	5.3	1.41	.293	5.12	114	4.21	103	10.58	-2.7
9	Hugh Casey H. Casey	2.14	1939	BKN	40	15	10	.600	25	2.93	79	15	0	1	227.1	228	74	88	13	54	11	11	962	4	3.13	1.46	0.51	8.2	5.6	1.24	.267	3.48	73	3.88	92	9.03	8.4
10	Bill Lohrman B. Lohrman	2.18	1939	NYG	38	12	13	.480	24	4.07	70	9	1	1	185.2	200	84	91	15	45	3	7	769	5	3.39	1.56	0.73	9.1	5.9	1.32	.291	4.41	103	4.04	98	9.69	1.7
11	Larry French L. French	2.32	1939	CHC	36	15	8	.652	21	3.29	98	10	2	1	194.0	205	71	80	7	50	1	11	828	5	4.55	1.96	0.32	11.8	6.0	1.31	.295	3.71	84	3.22	79	9.51	18.5
12	Mace Brown M. Brown	2.34	1939	PIT	47	9	13	.409	19	3.37	71	8	1	7	200.1	232	75	90	8	52	2	18	872	3	3.19	1.37	0.36	8.1	6.0	1.42	.303	4.04	86	3.59	88	10.42	10.8
13	Bill Beckmann B. Beckmann	2.38	1939	PHA	27	7	11	.389	19	5.39	20	7	2	0	155.1	198	93	104	15	41	1	5	692	1	1.16	0.49	0.87	2.9	5.9	1.54	.298	6.03	117	4.78	107	11.47	-5.6
14	Claude Passeau C. Passeau	2.39	1939	TOT	42	15	13	.536	35	3.28	137	17	2	3	274.1	269	100	112	9	73	5	6	1,150	0	4.49	1.88	0.30	11.9	6.3	1.25	.281	3.67	84	3.25	80	8.83	25.2
15	Vito Tamulis V. Tamulis	2.55	1939	BKN	39	9	8	.529	17	4.37	83	8	1	4	158.2	177	77	81	10	45	8	14	689	6	4.71	1.84	0.57	12.0	6.5	1.40	.308	4.59	108	3.75	89	10.04	8.1
16	Thornton Lee T. Lee	2.68	1939	CWS	33	15	11	.577	29	4.21	81	15	2	3	235.0	260	110	121	15	70	3	4	1,008	2	3.10	1.16	0.57	8.0	6.9	1.40	.292	4.63	92	4.04	92	9.96	9.5
17	Bill Lee B. Lee	2.71	1939	CHC	37	19	15	.559	36	3.44	105	20	1	0	282.1	295	108	125	18	85	1	1	1,202	4	3.35	1.24	0.57	8.7	7.1	1.35	.279	3.98	88	3.97	97	9.40	3.4
18	Lon Warneke L. Warneke	2.72	1939	SLN	34	13	7	.650	21	3.78	59	6	2	2	162.0	160	68	73	14	49	2	7	675	2	3.28	1.20	0.78	8.7	7.3	1.29	.265	4.06	92	4.31	101	8.89	0
19	Lefty Grove L. Grove	2.73	1939	BSA	23	15	4	.789	23	2.54	81	17	2	0	191.0	180	54	63	8	58	1	0	798	0	3.82	1.40	0.38	10.2	7.3	1.25	.265	2.97	53	3.60	78	8.48	20.9
20	Mel Harder M. Harder	2.77	1939	CLE	29	15	9	.625	26	3.50	67	12	1	1	208.0	213	81	89	15	64	3	3	877	1	2.90	1.05	0.65	7.6	7.3	1.33	.272	3.85	78	4.23	98	9.22	1.7
21	Danny MacFayden D. MacFayden	2.77	1939	BSN	33	8	14	.364	28	3.90	46	8	0	2	191.2	221	83	100	11	59	4	3	846	2	2.16	0.78	0.52	5.4	7.0	1.46	.289	4.70	107	4.22	111	10.38	-10.9
22	Tommy Bridges T. Bridges	2.77	1939	DET	29	17	7	.708	26	3.50	129	16	2	2	198.0	186	77	87	11	61	6	2	840	4	5.86	2.11	0.50	15.4	7.3	1.25	.276	3.95	71	3.41	72	8.45	28.1
23	Milt Shoffner M. Shoffner	2.81	1939	TOT	35	6	8	.429	14	3.18	57	7	0	1	170.0	176	60	74	7	53	3	12	729	1	3.02	1.08	0.37	7.8	7.3	1.35	.278	3.92	86	3.83	100	9.32	-0.6
24	Cliff Melton C. Melton	2.82	1939	NYG	41	12	15	.444	23	3.56	95	9	2	5	207.1	214	82	94	7	65	4	13	886	2	4.12	1.46	0.30	10.7	7.3	1.35	.290	4.08	90	3.49	85	9.29	14.4
25	Johnny Allen J. Allen	2.88	1939	CLE	28	9	7	.563	26	4.58	79	9	2	0	175.0	199	89	96	9	56	3	2	763	5	4.06	1.41	0.46	10.4	7.3	1.46	.308	4.94	102	3.75	87	10.23	11.1