Since 1920, By Speece has the fewest home runs allowed / 9 when pitching at least 162 innings, with 0.11.

Interpreted as:

lowest hr/9 by a player since 1920 with 162+ ip

	NAME	HR/9	IP	HR	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	H	ER	R	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	By Speece B. Speece	0.11	167.1	1	62	5	6	.455	4	4.73	51	3	0	1	208	88	109	61	5	34		761	5	2.74	3.28	0.84	6.7	8.0	1.61	.322	5.86	102	3.78	87	11.19	10.6
2	Arnold Carter A. Carter	0.33	195.1	3	46	13	11	.542	24	2.72	37	11	4	3	197	59	75	53	5	15		826	1	1.70	2.44	0.70	4.5	6.4	1.28	.266	3.46	76	3.25	92	9.08	6.2
3	Foster Edwards F. Edwards	0.44	170.0	4	56	6	9	.400	17	4.76	60	4	0	0	193	90	108	84	5	23		783	4	3.18	4.45	0.71	7.7	10.7	1.63	.300	5.72	126	4.15	109	10.22	-7.9
4	Dennis Burns D. Burns	0.44	181.0	4	41	8	9	.471	19	4.62	34	9	0	1	212	93	110	75	1	11		814	0	1.69	3.73	0.45	4.2	9.2	1.59	.297	5.47	106	4.20	98	10.54	2.1
5	Marv Goodwin M. Goodwin	0.44	177.1	4	52	4	12	.250	19	4.62	34	6	0	2	229	91	115	45	7	13		807	4	1.73	2.28	0.76	4.2	5.6	1.55	.314	5.84	141	3.66	105	11.62	-4.5
6	Al Schacht A. Schacht	0.44	182.0	4	51	12	10	.545	16	4.65	34	7	1	3	240	94	119	57	3	22		815	1	1.68	2.82	0.60	4.2	7.0	1.63	.329	5.88	120	3.81	102	11.87	-2
7	Orie Arntzen O. Arntzen	0.56	164.1	5	32	4	13	.235	20	4.22	66	9	0	0	172	77	85	69	5	7		708	2	3.61	3.78	0.96	9.3	9.7	1.47	.297	4.66	128	3.36	100	9.42	0.1
8	Lefty Wilkie L. Wilkie	0.56	194.0	5	68	8	11	.421	12	4.59	37	5	1	3	215	99	104	80	2	35		867	5	1.72	3.71	0.46	4.3	9.2	1.52	.283	4.82	131	3.74	103	9.97	-2.3
9	Dewey Metivier D. Metivier	0.56	167.2	5	54	7	7	.500	13	5.74	24	4	0	4	239	107	125	75	7	23		801	2	1.29	4.03	0.32	3.0	9.4	1.87	.339	6.71	139	4.56	111	12.83	-8
10	Ray Fisher R. Fisher	0.56	201.0	5	33	10	11	.476	21	2.73	56	10	1	1	189	61	86	50	8	8		846	1	2.51	2.24	1.12	6.6	5.9	1.19	.253	3.85	91	3.38	107	8.46	-6.2
11	Mark Lee M. Lee	0.67	175.1	6	118	7	8	.467	1	3.64	63	0	0	9	184	71	77	69	4	48	19	768	6	3.23	3.54	0.91	8.2	9.0	1.44	.284	3.95	106	3.61	103	9.44	-2.4
12	Mike Thompson M. Thompson	0.67	164.2	6	54	1	15	.063	29	4.86	113	0	0	0	158	89	97	128	5	4	6	753	15	6.18	7.00	0.88	15.0	17.0	1.74	.303	5.30	135	4.04	113	8.64	-8.7
13	Al Williams A. Williams	0.67	168.2	6	46	4	8	.333	16	6.24	52	3	0	1	216	117	144	103	2	12		805	7	2.77	5.50	0.50	6.5	12.8	1.89	.327	7.68	131	4.69	102	11.53	-1.2
14	Tom Baker T. Baker	0.67	173.0	6	68	3	9	.250	9	4.73	58	3	0	2	195	91	109	92	3	37		791	14	3.02	4.79	0.63	7.3	11.6	1.66	.299	5.67	119	4.58	111	10.14	-8.8
15	Joe Pate J. Pate	0.67	166.2	6	79	9	3	.750	2	3.51	38	0	0	13	176	65	74	72	3	52		738	2	2.05	3.89	0.53	5.1	9.8	1.49	.275	4.00	85	4.31	105	9.50	-3.8
16	Doc Ayers D. Ayers	0.67	212.2	6	48	7	14	.333	24	3.98	103	8	3	1	226	94	121	64	8	17		867	1	4.36	2.71	1.61	11.9	7.4	1.36	.321	5.12	106	3.17	88	9.56	10.4
17	Eddie Cicotte E. Cicotte	0.67	303.1	6	37	21	10	.677	35	3.26	87	28	4	2	316	110	128	74	2	2		1,225	3	2.58	2.20	1.18	7.1	6.0	1.29	.294	3.80	86	3.18	88	9.38	15.3
18	Claude Hendrix C. Hendrix	0.67	203.2	6	27	9	12	.429	23	3.58	72	12	0	0	216	81	101	54	3	3		872	4	3.18	2.39	1.33	8.3	6.2	1.33	.285	4.46	114	3.26	100	9.55	0.3
19	Carl Weilman C. Weilman	0.67	183.1	6	30	9	13	.409	24	4.47	45	13	1	2	201	91	103	61	3	3		754	2	2.21	2.99	0.74	6.0	8.1	1.43	.305	5.06	115	3.73	100	9.87	0.9
20	Dave Vonohlen D. Vonohlen	0.78	167.2	7	127	7	7	.500	0	3.33	59	0	0	4	185	62	72	61	3	44	19	722	3	3.17	3.27	0.97	8.2	8.4	1.47	.301	3.86	88	3.72	98	9.93	1.3
21	Kevin Saucier K. Saucier	0.78	203.2	7	139	15	11	.577	3	3.31	94	0	0	19	183	75	82	104	15	53	18	858	7	4.15	4.60	0.90	11.0	12.1	1.41	.276	3.62	87	3.97	103	8.09	-2.1
22	Fred Martin F. Martin	0.78	162.0	7	57	12	3	.800	10	3.78	68	5	0	0	181	68	80	58	1	26		713	4	3.78	3.22	1.17	9.5	8.1	1.48	.301	4.44	95	3.33	81	10.06	13.3
23	Cookie Cuccurullo C. Cuccurullo	0.78	170.0	7	62	3	5	.375	9	4.55	51	0	0	5	188	86	113	81	4	25		760	1	2.70	4.29	0.63	6.7	10.7	1.58	.293	5.98	120	3.97	106	9.95	-3.5
24	Art Johnson A. Johnson	0.78	195.2	7	49	7	16	.304	19	3.68	71	6	0	1	203	80	100	79	7	15		853	2	3.27	3.63	0.90	8.3	9.3	1.44	.284	4.60	103	3.72	102	9.34	-1.9
25	Josh Billings J. Billings	0.78	197.0	7	39	10	15	.400	25	5.03	67	8	1	0	209	110	133	107	12	9		905	6	3.06	4.89	0.63	7.4	11.8	1.60	.284	6.08	121	4.57	112	9.55	-9.9