lowest era- by a player with at least 1200 ip between 1956 to 1966

Between the 1956 and 1966 seasons, Hoyt Wilhelm had the best ERA- when pitching at least 1200 innings, with an ERA- of 68.

	NAME	ERA-	IP	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	FIP	FIP-	H/9	PRAA
1	Hoyt Wilhelm H. Wilhelm	68	1347.2	561	80	85	.485	52	2.46	988	20	5	140	1,040	369	448	89	410	35	370	36	5,413	53	6.60	2.74	2.41	0.59	18.3	7.6	1.08	.244	2.99	2.91	79	6.95	118
2	Juan Marichal J. Marichal	73	1722.0	227	130	58	.691	220	2.66	1,251	122	30	2	1,427	508	586	167	361	17	7	32	6,890	24	6.54	1.89	3.47	0.87	18.2	5.2	1.04	.247	3.06	3.02	86	7.46	89.8
3	Sandy Koufax S. Koufax	75	2282.2	385	163	85	.657	309	2.76	2,366	135	38	9	1,721	699	791	202	789	17	40	47	9,314	85	9.33	3.11	3.00	0.80	25.4	8.5	1.10	.256	3.12	2.67	74	6.79	223.8
4	Whitey Ford W. Ford	75	2343.0	366	173	80	.684	328	2.75	1,504	107	31	7	2,094	715	825	176	701	20	20	37	9,616	59	5.78	2.69	2.15	0.68	15.6	7.3	1.19	.266	3.17	3.14	85	8.04	149.3
5	Jim Maloney J. Maloney	80	1220.0	189	91	54	.628	167	3.01	1,149	54	19	3	958	408	449	96	533	27	8	22	5,073	79	8.48	3.93	2.16	0.71	22.6	10.5	1.22	.264	3.31	3.06	84	7.07	75.3
6	Bob Gibson B. Gibson	81	1728.2	256	112	81	.580	218	3.13	1,435	100	23	4	1,461	602	687	137	664	56	17	45	7,246	58	7.47	3.46	2.16	0.71	19.8	9.2	1.23	.267	3.58	3.17	84	7.61	115.1
7	Stu Miller S. Miller	81	1339.0	589	87	79	.524	60	3.01	938	10	1	139	1,179	448	518	108	458	31	356	100	5,559	19	6.30	3.08	2.05	0.73	16.9	8.2	1.22	.266	3.48	3.26	88	7.92	67.3
8	Jim Bunning J. Bunning	81	2705.2	412	172	113	.604	362	3.09	2,108	122	33	14	2,394	930	1,040	287	695	115	28	50	11,164	33	7.01	2.31	3.03	0.95	18.9	6.2	1.14	.265	3.46	3.25	85	7.96	168.2
9	Dean Chance D. Chance	82	1236.2	223	74	66	.529	168	2.83	857	48	21	16	1,054	389	462	61	462	34	32	41	5,120	33	6.24	3.36	1.85	0.44	16.7	9.0	1.23	.268	3.36	3.01	85	7.67	73.9
10	Don Drysdale D. Drysdale	82	2848.1	437	177	134	.569	384	3.00	2,111	145	37	6	2,543	950	1,089	241	726	132	34	94	11,725	72	6.67	2.29	2.91	0.76	18.0	6.2	1.15	.270	3.44	3.05	86	8.04	163
11	Steve Barber S. Barber	85	1340.0	238	91	66	.580	196	3.07	870	52	18	5	1,165	457	534	81	607	22	14	28	5,658	47	5.84	4.08	1.43	0.54	15.4	10.7	1.32	.266	3.59	3.44	93	7.82	33.5
12	Billy O'Dell B. O'Dell	88	1714.0	445	99	93	.516	186	3.17	1,093	61	13	50	1,594	604	693	127	510	39	127	59	7,195	29	5.74	2.68	2.14	0.67	15.2	7.1	1.23	.270	3.64	3.18	89	8.37	74.8
13	Larry Jackson L. Jackson	88	2580.0	447	159	137	.537	333	3.43	1,355	122	30	19	2,546	983	1,115	208	638	49	62	69	10,743	49	4.73	2.23	2.12	0.73	12.6	5.9	1.23	.275	3.89	3.33	88	8.88	136.2
14	Sam Jones S. Jones	88	1357.0	270	86	77	.528	183	3.41	1,146	64	13	9	1,186	514	602	123	595	42	41	32	5,786	36	7.60	3.95	1.93	0.82	19.8	10.3	1.31	.274	3.99	3.40	88	7.87	67.3
15	Jim Kaat J. Kaat	89	1515.0	244	98	83	.541	219	3.36	957	70	12	4	1,450	565	690	145	408	62	11	24	6,349	59	5.69	2.42	2.35	0.86	15.1	6.4	1.23	.273	4.10	3.47	89	8.61	69
16	Curt Simmons C. Simmons	89	1884.1	318	107	100	.517	266	3.46	867	80	20	1	1,929	724	859	153	474	32	27	53	7,914	23	4.14	2.26	1.83	0.73	11.0	6.0	1.28	.278	4.10	3.46	91	9.21	77.9
17	Billy Pierce B. Pierce	89	1689.0	314	117	80	.594	228	3.38	992	91	15	20	1,594	635	683	179	464	13	42	30	6,994	22	5.29	2.47	2.14	0.95	14.2	6.6	1.22	.265	3.64	3.55	94	8.49	46.9
18	Camilo Pascual C. Pascual	90	2216.2	341	139	122	.533	311	3.48	1,743	117	31	4	1,999	858	968	202	778	35	21	36	9,327	63	7.08	3.16	2.24	0.82	18.7	8.3	1.25	.274	3.93	3.24	82	8.12	171.4
19	Warren Spahn W. Spahn	90	2565.0	375	180	121	.598	331	3.20	1,189	177	29	13	2,422	911	1,004	243	626	24	33	56	10,507	34	4.17	2.20	1.90	0.85	11.3	6.0	1.19	.259	3.52	3.58	102	8.50	-26.8
20	Frank Lary F. Lary	90	1923.2	311	114	101	.530	261	3.54	996	110	19	10	1,887	756	859	187	524	91	24	32	8,093	40	4.66	2.45	1.90	0.87	12.3	6.5	1.25	.270	4.02	3.69	93	8.83	61.8
21	Lindy McDaniel L. McDaniel	90	1299.0	587	95	79	.546	61	3.55	847	15	2	112	1,302	513	590	109	383	11	332	81	5,478	79	5.87	2.65	2.21	0.76	15.5	7.0	1.30	.289	4.09	3.21	83	9.02	90.6
22	Hank Aguirre H. Aguirre	90	1223.1	329	68	69	.496	147	3.38	762	43	8	28	1,086	460	513	116	416	41	84	28	5,145	28	5.61	3.06	1.83	0.85	14.8	8.1	1.23	.255	3.77	3.64	95	7.99	30.1
23	Bob Friend B. Friend	91	2735.0	422	155	171	.475	388	3.39	1,381	133	30	7	2,838	1,029	1,173	207	575	37	26	111	11,410	39	4.54	1.89	2.40	0.68	12.1	5.0	1.25	.286	3.86	3.16	86	9.34	150.8
24	Claude Osteen C. Osteen	92	1225.2	213	65	71	.478	171	3.26	635	45	8	1	1,191	444	508	89	365	15	20	46	5,127	29	4.66	2.68	1.74	0.65	12.4	7.1	1.27	.274	3.73	3.39	96	8.75	18.4
25	Milt Pappas M. Pappas	92	1841.2	297	122	85	.589	264	3.36	1,077	88	28	4	1,661	687	759	165	570	39	21	38	7,599	71	5.26	2.79	1.89	0.81	14.2	7.5	1.21	.260	3.71	3.53	95	8.12	31.7