Art Mills had the most home runs allowed per inning pitched in the NL in 1928, with 0.39 in his rookie season.

	NAME	HR/IP	HR	IP	SEASON	TM	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	H	ER	R	BB	HBP	GF	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Art Mills A. Mills	0.39	3	7.2	1928	BSN	4	0	0		0	12.91	0	0	0	0	17	11	11	8	2	3	48	0	0.00	9.39	0.00	3.52	0.0	16.7	3.26	.400	12.91	341	11.91	304	19.96	-7.2
2	Guy Morrison G. Morrison	0.33	1	3.0	1928	BSN	1	0	0		0	12.00	0	0	0	0	4	4	4	3	0	1	16	0	0.00	9.00	0.00	3.00	0.0	18.8	2.33	.250	12.00	316	10.24	262	12.00	-2.2
3	Garland Buckeye G. Buckeye	0.27	1	3.2	1928	NYG	1	0	0		0	14.73	3	0	0	0	9	6	6	2	0	1	24	0	7.36	4.91	1.50	2.45	12.5	8.3	3.00	.444	14.73	376	6.45	160	22.09	-1
4	Hal Goldsmith H. Goldsmith	0.24	2	8.1	1928	BSN	4	0	0		0	3.24	1	0	0	0	14	3	5	1	0	0	40	0	1.08	1.08	1.00	2.16	2.5	2.5	1.80	.333	5.40	85	6.15	157	15.12	-2.2
5	Tony Kaufmann T. Kaufmann	0.21	1	4.2	1928	SLN	4	0	0		1	9.64	2	0	0	0	8	5	5	4	1	2	26	0	3.86	7.71	0.50	1.93	7.7	15.4	2.57	.389	9.64	239	8.05	194	15.43	-2
6	Earl Caldwell E. Caldwell	0.14	5	34.2	1928	PHN	5	1	4	.200	5	5.71	6	1	1	0	46	22	23	17	0	0	154	0	1.56	4.41	0.35	1.30	3.9	11.0	1.82	.325	5.97	132	5.91	133	11.94	-5
7	Russ Miller R. Miller	0.13	14	108.0	1928	PHN	33	0	12	.000	12	5.42	19	1	0	2	137	65	79	34	0	13	485	1	1.58	2.83	0.56	1.17	3.9	7.0	1.58	.294	6.58	126	5.18	117	11.42	-7.6
8	Bill Walker B. Walker	0.12	9	76.1	1928	NYG	22	3	6	.333	8	4.72	39	1	0	0	79	40	43	31	1	10	330	2	4.60	3.66	1.26	1.06	11.8	9.4	1.44	.280	5.07	121	4.67	116	9.31	-5.7
9	Les Sweetland L. Sweetland	0.11	15	135.1	1928	PHN	37	3	15	.167	18	6.58	23	5	0	2	163	99	111	97	15	10	664	5	1.53	6.45	0.24	1.00	3.5	14.6	1.92	.288	7.38	153	6.49	146	10.84	-27.6
10	Johnny Werts J. Werts	0.11	2	18.1	1928	BSN	10	0	2	.000	2	10.31	5	0	0	0	31	21	22	8	0	5	93	0	2.45	3.93	0.63	0.98	5.4	8.6	2.13	.372	10.80	272	5.09	130	15.22	-2.6
11	Augie Walsh A. Walsh	0.11	13	122.1	1928	PHN	38	4	9	.308	11	6.18	38	2	0	2	160	84	92	40	5	17	560	1	2.80	2.94	0.95	0.96	6.8	7.1	1.63	.317	6.77	143	4.77	107	11.77	-3.3
12	Alex Ferguson A. Ferguson	0.1	14	134.2	1928	PHN	34	5	10	.333	19	5.88	51	5	1	3	168	88	91	52	6	10	615	1	3.41	3.48	0.98	0.94	8.3	8.5	1.63	.313	6.08	136	4.79	108	11.23	-4
13	Joe Genewich J. Genewich	0.1	24	239.0	1928	TOT	39	14	11	.560	29	3.50	52	14	2	3	224	93	105	72	4	5	999	3	1.96	2.71	0.72	0.90	5.2	7.2	1.24	.236	3.95	91	4.73	119	8.44	-21.1
14	Ray Moss R. Moss	0.1	6	60.1	1928	BKN	22	0	3	.000	5	4.92	5	1	1	1	62	33	43	35	0	9	268	0	0.75	5.22	0.14	0.90	1.9	13.1	1.61	.252	6.41	126	5.77	143	9.25	-12
15	Ed Brandt E. Brandt	0.1	22	225.1	1928	BSN	38	9	21	.300	32	5.07	84	12	1	0	234	127	141	109	7	2	1,001	4	3.36	4.35	0.77	0.88	8.4	10.9	1.52	.272	5.63	134	4.97	127	9.35	-29
16	Bill Burwell B. Burwell	0.1	2	20.2	1928	PIT	4	1	0	1.000	1	5.23	2	0	0	0	18	12	12	8	0	1	87	0	0.87	3.48	0.25	0.87	2.3	9.2	1.26	.213	5.23	127	5.13	121	7.84	-1.9
17	Bonnie Hollingsworth B. Hollingsworth	0.09	2	22.1	1928	BSN	7	0	2	.000	2	5.24	10	0	0	0	30	13	19	13	0	3	106	0	4.03	5.24	0.77	0.81	9.4	12.3	1.93	.346	7.66	138	4.92	126	12.09	-2.7
18	Les Bartholomew L. Bartholomew	0.09	2	22.2	1928	PIT	6	0	0		0	7.15	6	0	0	0	31	18	18	9	0	3	103	1	2.38	3.57	0.67	0.79	5.8	8.7	1.76	.337	7.15	174	4.71	111	12.31	-1.1
19	Pete Appleton P. Appleton	0.08	7	82.2	1928	CIN	31	3	4	.429	3	4.68	20	0	0	0	101	43	50	22	2	19	361	2	2.18	2.40	0.91	0.76	5.5	6.1	1.49	.303	5.44	123	4.39	112	11.00	-5
20	Charlie Robertson C. Robertson	0.08	5	59.1	1928	BSN	13	2	5	.286	7	5.31	17	3	0	1	73	35	40	16	0	4	260	2	2.58	2.43	1.06	0.76	6.5	6.2	1.50	.306	6.07	140	4.24	108	11.07	-2.5
21	Jimmy Ring J. Ring	0.08	14	176.0	1928	PHN	35	4	17	.190	25	6.44	70	4	0	1	220	126	135	103	2	3	817	5	3.58	5.27	0.68	0.72	8.6	12.6	1.84	.328	6.90	149	4.93	111	11.25	-7.8
22	Johnny Cooney J. Cooney	0.08	7	89.2	1928	BSN	24	3	7	.300	5	4.32	18	2	0	1	106	43	47	31	0	13	389	0	1.81	3.11	0.58	0.70	4.6	8.0	1.53	.297	4.72	114	4.56	117	10.64	-7.2
23	Jesse Petty J. Petty	0.08	18	234.0	1928	BKN	40	15	15	.500	31	4.04	74	15	2	1	264	105	119	56	5	6	1,004	2	2.85	2.15	1.32	0.69	7.4	5.6	1.37	.289	4.58	103	4.06	101	10.15	-1
24	Flint Rhem F. Rhem	0.08	13	169.2	1928	SLN	28	11	8	.579	22	4.14	47	9	0	3	199	78	91	71	3	4	758	1	2.49	3.77	0.66	0.69	6.2	9.4	1.59	.298	4.83	103	4.66	112	10.56	-9.2
25	Ray Benge R. Benge	0.07	15	201.2	1928	PHN	40	8	18	.308	28	4.55	68	12	1	1	219	102	117	88	5	12	896	0	3.03	3.93	0.77	0.67	7.6	9.8	1.52	.283	5.22	106	4.58	103	9.77	-1.6