most home runs allowed by a pitcher in a season until 2003

Before 2004, Bert Blyleven allowed the most home runs in a season, with 50 HR in 1986.

	NAME	HR	SEASON	TM	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	IP	H	ER	R	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Bert Blyleven B. Blyleven	50	1986	MIN	36	17	14	.548	36	4.01	215	16	3	0	271.2	262	121	134	58	10	0	4	1,126	4	7.12	1.92	3.71	1.66	19.1	5.2	1.18	.267	4.44	93	4.32	104	8.68	-5
2	Jose Lima J. Lima	48	2000	HOU	33	7	16	.304	33	6.65	124	0	0	0	196.1	251	145	152	68	2	0	3	895	3	5.68	3.12	1.82	2.20	13.9	7.6	1.62	.311	6.97	138	6.11	129	11.51	-29.2
3	Bert Blyleven B. Blyleven	46	1987	MIN	37	15	12	.556	37	4.01	196	8	1	0	267.0	249	119	132	101	9	0	4	1,122	13	6.61	3.40	1.94	1.55	17.5	9.0	1.31	.264	4.45	87	4.87	109	8.39	-12.1
4	Robin Roberts R. Roberts	46	1956	PHI	43	19	18	.514	37	4.45	157	22	1	3	297.1	328	147	155	40	2	6	3	1,228	2	4.75	1.21	3.93	1.39	12.8	3.3	1.24	.287	4.69	119	3.75	97	9.93	3.8
5	Pedro Ramos P. Ramos	43	1957	WSH	43	12	16	.429	30	4.79	91	7	1	0	231.0	251	123	131	69	7	5	4	1,011	2	3.55	2.69	1.32	1.68	9.0	6.8	1.39	.260	5.10	127	5.08	132	9.78	-31.6
6	Denny McLain D. McLain	42	1966	DET	38	20	14	.588	38	3.92	192	14	4	0	264.1	205	115	120	104	3	0	3	1,080	6	6.54	3.54	1.85	1.43	17.8	9.6	1.17	.221	4.09	113	4.38	122	6.98	-22.9
7	Rick Helling R. Helling	41	1999	TEX	35	13	11	.542	35	4.84	131	3	0	0	219.1	228	118	127	85	6	0	5	943	8	5.38	3.49	1.54	1.68	13.9	9.0	1.43	.275	5.21	97	5.60	115	9.36	-16.9
8	Phil Niekro P. Niekro	41	1979	ATL	44	21	20	.512	44	3.39	208	23	1	0	342.0	311	129	160	113	11	0	8	1,436	18	5.47	2.97	1.84	1.08	14.5	7.9	1.24	.254	4.21	84	4.15	101	8.18	0.1
9	Robin Roberts R. Roberts	41	1955	PHI	41	23	14	.622	38	3.28	160	26	1	3	305.0	292	111	137	53	2	3	3	1,256	3	4.72	1.56	3.02	1.21	12.7	4.2	1.13	.251	4.04	83	3.61	90	8.62	13.8
10	Ramon Ortiz R. Ortiz	40	2002	ANA	32	15	9	.625	32	3.77	162	4	1	0	217.1	188	91	97	68	5	0	0	896	7	6.71	2.82	2.38	1.66	18.1	7.6	1.18	.238	4.02	85	4.86	112	7.79	-12.1
11	Shawn Boskie S. Boskie	40	1996	CAL	37	12	11	.522	28	5.32	133	1	0	0	189.1	226	112	126	67	13	1	7	860	10	6.32	3.18	1.99	1.90	15.5	7.8	1.55	.306	5.99	107	5.77	116	10.74	-16.8
12	Brad Radke B. Radke	40	1996	MIN	35	11	16	.407	35	4.46	148	3	0	0	232.0	231	115	125	57	4	0	2	973	1	5.74	2.21	2.60	1.55	15.2	5.9	1.24	.264	4.85	89	4.92	100	8.96	-0.1
13	Bill Gullickson B. Gullickson	40	1987	TOT	35	14	13	.519	35	4.86	117	4	1	0	213.0	218	115	128	50	3	0	7	896	4	4.94	2.11	2.34	1.69	13.1	5.6	1.26	.259	5.41	114	4.95	117	9.21	-16.6
14	Jack Morris J. Morris	40	1986	DET	35	21	8	.724	35	3.27	223	15	6	0	267.0	229	97	105	82	0	0	7	1,092	12	7.52	2.76	2.72	1.35	20.4	7.5	1.16	.253	3.54	81	3.96	94	7.72	7.1
15	Fergie Jenkins F. Jenkins	40	1979	TEX	37	16	14	.533	37	4.07	164	10	3	0	259.0	252	117	127	81	3	0	6	1,089	4	5.70	2.81	2.02	1.39	15.1	7.4	1.29	.265	4.41	98	4.43	109	8.76	-11.6
16	Phil Niekro P. Niekro	40	1970	ATL	34	12	18	.400	32	4.27	168	10	3	0	229.2	222	109	124	68	6	1	2	980	6	6.58	2.66	2.47	1.57	17.1	6.9	1.26	.261	4.86	103	4.40	111	8.70	-10.7
17	Orlando Pena O. Pena	40	1964	KCA	40	12	14	.462	32	4.43	184	5	0	0	219.1	231	108	126	73	8	3	2	955	6	7.55	3.00	2.52	1.64	19.3	7.6	1.39	.294	5.17	119	4.41	113	9.48	-12
18	Ralph Terry R. Terry	40	1962	NYY	43	23	12	.657	39	3.19	176	14	3	2	298.2	257	106	123	57	3	2	1	1,191	2	5.30	1.72	3.09	1.21	14.8	4.8	1.05	.237	3.71	84	3.78	97	7.74	3.7
19	Robin Roberts R. Roberts	40	1957	PHI	39	10	22	.313	32	4.07	128	14	2	2	249.2	246	113	122	43	1	5	16	1,033	0	4.61	1.55	2.98	1.44	12.4	4.2	1.16	.251	4.40	106	4.04	107	8.87	-7.4
20	Brian Anderson B. Anderson	39	1998	ARI	32	12	13	.480	32	4.33	95	2	1	0	208.0	221	100	109	24	4	0	2	845	3	4.11	1.04	3.96	1.69	11.2	2.8	1.18	.266	4.72	100	5.06	116	9.56	-16.3
21	Pedro Astacio P. Astacio	39	1998	COL	35	13	14	.481	34	6.23	170	0	0	0	209.1	245	145	160	74	17	0	0	938	2	7.31	3.18	2.30	1.68	18.1	7.9	1.52	.323	6.88	119	5.23	110	10.53	-8.7
22	Jack Morris J. Morris	39	1987	DET	34	18	11	.621	34	3.38	208	13	0	0	266.0	227	100	111	93	1	0	7	1,101	24	7.04	3.15	2.24	1.32	18.9	8.4	1.20	.247	3.76	77	4.26	94	7.68	8.5
23	Catfish Hunter C. Hunter	39	1973	OAK	36	21	5	.808	36	3.34	124	11	3	0	256.1	222	95	105	69	1	0	1	1,040	2	4.35	2.42	1.80	1.37	11.9	6.6	1.14	.227	3.69	93	4.39	123	7.79	-25.6
24	Jim Perry J. Perry	39	1971	MIN	40	17	17	.500	39	4.23	126	8	0	1	270.0	263	127	135	102	5	1	10	1,146	5	4.20	3.40	1.24	1.30	11.0	8.9	1.35	.256	4.50	120	4.58	126	8.77	-27.8
25	Pedro Ramos P. Ramos	39	1961	MIN	42	11	20	.355	34	3.95	174	9	3	2	264.1	265	116	134	79	4	6	6	1,123	5	5.92	2.69	2.20	1.33	15.5	7.0	1.30	.273	4.56	96	4.12	99	9.02	2