lowest era- by a player with at least 1200 ip between 1963 to 1973

Between the 1963 and 1973 seasons, Tom Seaver had the best ERA- when pitching at least 1200 innings, with an ERA- of 69.

	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	Tom Seaver T. Seaver	69	1931.1	251	135	76	.640	246	2.38	1,655	121	24	1	1,524	511	563	143	493	37	5	37	7,689	45	7.71	2.30	3.36	0.67	21.5	6.4	1.04	.258	2.62	2.57	77	7.10	167.9
2	Bob Gibson B. Gibson	73	2928.0	366	203	115	.638	357	2.65	2,437	216	47	2	2,389	863	972	184	869	75	6	74	11,913	74	7.49	2.67	2.80	0.57	20.5	7.3	1.11	.264	2.99	2.63	76	7.34	271.8
3	Wilbur Wood W. Wood	77	1704.2	500	107	96	.527	158	2.71	950	64	19	57	1,571	514	626	118	407	36	193	57	6,975	50	5.02	2.15	2.33	0.62	13.6	5.8	1.16	.266	3.31	3.05	85	8.29	104.9
4	Jim Palmer J. Palmer	77	1688.0	242	122	57	.682	217	2.66	1,093	93	24	2	1,354	499	549	121	620	12	9	19	6,883	49	5.83	3.31	1.76	0.65	15.9	9.0	1.17	.245	2.93	3.28	92	7.22	54.3
5	Juan Marichal J. Marichal	78	2914.2	381	201	117	.632	372	2.73	1,946	211	45	1	2,606	884	1,059	252	524	33	7	69	11,760	38	6.01	1.62	3.71	0.78	16.5	4.5	1.07	.261	3.27	2.87	85	8.05	163.5
6	Gaylord Perry G. Perry	81	2938.0	436	174	143	.549	357	2.86	2,058	182	33	10	2,575	932	1,085	213	764	67	30	112	11,977	106	6.30	2.34	2.69	0.65	17.2	6.4	1.14	.266	3.32	2.90	85	7.89	169.8
7	Phil Niekro P. Niekro	82	1913.2	358	110	94	.539	224	3.00	1,172	100	19	26	1,701	637	765	166	493	42	73	36	7,857	98	5.51	2.32	2.38	0.78	14.9	6.3	1.15	.257	3.60	3.23	92	8.00	61.5
8	Fergie Jenkins F. Jenkins	82	2303.2	342	149	109	.578	284	3.13	1,820	149	27	7	2,015	800	885	235	489	41	30	71	9,319	32	7.11	1.91	3.72	0.92	19.5	5.2	1.09	.264	3.46	2.93	80	7.87	180.5
9	Luis Tiant L. Tiant	83	1816.0	328	118	93	.559	241	2.93	1,479	101	28	15	1,441	592	659	185	648	30	50	35	7,422	21	7.33	3.21	2.28	0.92	19.9	8.7	1.15	.247	3.27	3.32	91	7.14	61.9
10	Jerry Koosman J. Koosman	83	1330.2	201	79	68	.537	181	2.87	886	58	18	1	1,168	425	482	99	406	25	6	53	5,461	41	5.99	2.75	2.18	0.67	16.2	7.4	1.18	.264	3.26	3.10	93	7.90	36.1
11	Andy Messersmith A. Messersmith	84	1222.0	201	73	57	.562	156	2.76	945	52	14	12	902	375	435	86	479	27	26	34	4,999	38	6.96	3.53	1.97	0.63	18.9	9.6	1.13	.236	3.20	3.11	90	6.64	42.5
12	Dean Chance D. Chance	85	1922.1	351	114	103	.525	266	2.88	1,396	77	31	15	1,636	615	734	108	668	59	44	69	7,954	67	6.54	3.13	2.09	0.51	17.6	8.4	1.20	.267	3.44	2.93	83	7.66	123.1
13	Jim Maloney J. Maloney	85	1575.1	242	117	64	.646	224	3.03	1,395	68	29	1	1,281	531	588	106	648	31	10	30	6,545	107	7.97	3.70	2.15	0.61	21.3	9.9	1.22	.269	3.36	2.91	84	7.32	99.2
14	Steve Carlton S. Carlton	85	1905.0	271	117	92	.560	253	3.02	1,484	114	27	1	1,719	639	726	135	649	21	7	60	7,921	67	7.01	3.07	2.29	0.64	18.7	8.2	1.24	.281	3.43	2.91	84	8.12	112.1
15	Bill Hands B. Hands	85	1712.0	319	99	98	.503	230	3.25	983	67	15	11	1,636	618	716	146	436	29	53	54	7,099	37	5.17	2.29	2.25	0.77	13.8	6.1	1.21	.271	3.76	3.27	90	8.60	76.3
16	Mike Cuellar M. Cuellar	86	2168.1	349	145	94	.607	285	2.94	1,381	133	25	10	1,911	709	834	177	595	7	29	45	8,825	38	5.73	2.47	2.32	0.73	15.6	6.7	1.16	.260	3.46	3.13	90	7.93	79.2
17	Don Drysdale D. Drysdale	86	1802.1	247	105	93	.530	245	2.71	1,250	91	30	1	1,619	543	635	130	365	71	1	70	7,299	43	6.24	1.82	3.42	0.65	17.1	5.0	1.10	.272	3.17	2.79	92	8.08	42.7
18	Sam McDowell S. McDowell	87	2315.2	372	135	120	.529	324	3.05	2,316	103	23	13	1,792	784	897	149	1,176	55	27	68	9,777	131	9.00	4.57	1.97	0.58	23.7	12.0	1.28	.270	3.49	2.94	81	6.96	174.7
19	Bob Veale B. Veale	87	1867.1	368	118	92	.562	249	3.04	1,645	76	20	18	1,630	631	722	87	829	29	57	60	7,910	89	7.93	4.00	1.98	0.42	20.8	10.5	1.32	.290	3.48	2.75	83	7.86	124.8
20	Tommy John T. John	87	2012.2	333	111	103	.519	296	3.00	1,195	66	25	2	1,856	671	792	140	591	48	9	60	8,325	86	5.34	2.64	2.02	0.63	14.4	7.1	1.22	.270	3.54	3.18	90	8.30	77.9
21	Joe Horlen J. Horlen	87	1875.2	336	108	108	.500	267	2.97	991	54	17	4	1,696	619	706	133	498	51	30	63	7,682	63	4.76	2.39	1.99	0.64	12.9	6.5	1.17	.260	3.39	3.26	93	8.14	48.7
22	Sonny Siebert S. Siebert	89	1930.2	348	125	100	.556	268	3.13	1,390	62	18	16	1,672	672	798	183	600	50	37	34	7,964	51	6.48	2.80	2.32	0.85	17.5	7.5	1.18	.259	3.72	3.31	91	7.79	72.6
23	Mel Stottlemyre M. Stottlemyre	90	2548.1	344	158	132	.545	341	2.94	1,217	146	40	1	2,316	833	949	164	772	40	2	72	10,487	54	4.30	2.73	1.58	0.58	11.6	7.4	1.21	.259	3.35	3.34	98	8.18	17.1
24	Larry Jackson L. Jackson	90	1590.1	228	93	97	.489	220	3.12	810	79	22	0	1,517	551	645	107	345	27	3	50	6,537	20	4.58	1.95	2.35	0.61	12.4	5.3	1.17	.269	3.65	3.07	92	8.58	47.2
25	Jim Bunning J. Bunning	90	2141.1	326	118	110	.518	303	3.19	1,645	79	26	5	1,986	758	850	187	505	92	15	70	8,854	25	6.91	2.12	3.26	0.79	18.6	5.7	1.16	.280	3.57	2.96	87	8.35	105.1