lowest era- by a player with at least 400 ip between 1969 to 1971

Between the 1969 and 1971 seasons, Tom Seaver had the best ERA- when pitching at least 400 innings, with an ERA- of 62.

	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	62	850.1	109	63	29	.685	106	2.26	780	58	11	0	642	214	239	63	226	15	3	19	3,365	19	8.26	2.39	3.45	0.67	23.2	6.7	1.02	.254	2.53	2.51	72	6.79	94.4
2	Wilbur Wood W. Wood	63	575.1	197	41	37	.526	42	2.33	368	22	7	37	503	149	193	41	138	12	114	24	2,334	15	5.76	2.16	2.67	0.64	15.8	5.9	1.11	.260	3.02	2.93	77	7.87	55.2
3	Jim Palmer J. Palmer	73	768.0	102	56	23	.709	99	2.61	506	48	14	0	625	223	240	51	270	6	1	11	3,144	25	5.93	3.16	1.87	0.60	16.1	8.6	1.17	.248	2.81	3.16	85	7.32	48
4	Bob Gibson B. Gibson	74	853.2	100	59	33	.641	100	2.75	728	71	12	0	728	261	291	39	259	21	0	27	3,509	19	7.68	2.73	2.81	0.41	20.7	7.4	1.16	.280	3.07	2.40	68	7.68	110.5
5	Jerry Koosman J. Koosman	76	618.2	88	35	27	.565	85	2.78	394	25	7	0	536	191	219	48	190	7	0	29	2,535	21	5.73	2.76	2.07	0.70	15.5	7.5	1.17	.257	3.19	3.22	92	7.80	18.9
6	Gaylord Perry G. Perry	76	934.0	118	58	39	.598	117	2.82	605	63	10	0	837	293	369	70	242	24	1	26	3,830	31	5.83	2.33	2.50	0.67	15.8	6.3	1.16	.265	3.56	3.06	87	8.07	48.9
7	Fergie Jenkins F. Jenkins	77	949.1	122	67	44	.604	120	3.12	810	77	13	1	853	329	364	86	168	20	2	27	3,839	19	7.68	1.59	4.82	0.82	21.1	4.4	1.08	.278	3.45	2.59	66	8.09	130.4
8	Bill Hands B. Hands	78	807.1	116	50	47	.515	114	3.17	479	44	6	1	794	284	335	68	199	12	2	22	3,366	19	5.34	2.22	2.41	0.76	14.2	5.9	1.23	.278	3.73	3.22	83	8.85	59.7
9	Larry Dierker L. Dierker	81	734.0	100	48	31	.608	96	2.98	514	43	8	1	653	243	271	57	187	9	1	11	2,986	23	6.30	2.29	2.75	0.70	17.2	6.3	1.14	.269	3.32	2.95	84	8.01	45.5
10	Juan Marichal J. Marichal	81	821.1	108	51	32	.614	106	2.98	487	59	13	0	757	272	331	70	158	10	1	16	3,335	15	5.34	1.73	3.08	0.77	14.6	4.7	1.11	.263	3.63	3.06	87	8.30	41.6
11	Bert Blyleven B. Blyleven	81	442.1	65	26	24	.520	63	2.95	359	22	6	0	410	145	161	38	106	7	1	7	1,801	7	7.30	2.16	3.39	0.77	19.9	5.9	1.17	.288	3.28	2.78	73	8.34	48.8
12	Sam McDowell S. McDowell	82	804.2	113	51	43	.543	108	3.05	775	45	7	2	618	273	308	60	386	17	6	32	3,366	44	8.67	4.32	2.01	0.67	23.0	11.5	1.25	.262	3.44	3.08	79	6.91	72.9
13	Tom Hall T. Hall	83	425.2	131	23	20	.535	40	3.04	413	6	2	13	327	144	163	36	174	2	35	13	1,751	12	8.73	3.68	2.37	0.76	23.6	9.9	1.18	.258	3.45	2.93	77	6.91	42.8
14	Phil Niekro P. Niekro	83	782.2	116	50	45	.526	103	3.21	534	49	11	3	705	279	329	88	195	14	9	15	3,224	29	6.14	2.24	2.74	1.01	16.6	6.0	1.15	.258	3.78	3.42	92	8.11	23.9
15	Fritz Peterson F. Peterson	83	806.1	113	52	40	.565	109	2.84	416	40	10	1	744	254	303	64	125	10	2	24	3,221	10	4.64	1.40	3.33	0.71	12.9	3.9	1.08	.261	3.38	3.03	85	8.30	48.9
16	Andy Messersmith A. Messersmith	83	721.1	115	47	34	.580	97	2.83	552	30	7	7	537	227	268	54	299	18	13	19	2,973	27	6.89	3.73	1.85	0.67	18.6	10.1	1.16	.236	3.34	3.28	92	6.70	21.4
17	Dave Roberts D. Roberts	83	500.0	102	22	34	.393	60	2.99	256	17	4	2	485	166	189	30	123	9	20	20	2,067	9	4.61	2.21	2.08	0.54	12.4	6.0	1.22	.276	3.40	3.07	90	8.73	18.6
18	Mike Cuellar M. Cuellar	84	880.2	117	67	28	.705	117	2.98	496	60	13	0	736	292	331	82	226	3	0	13	3,517	12	5.07	2.31	2.19	0.84	14.1	6.4	1.09	.241	3.38	3.39	92	7.52	31.4
19	Mel Stottlemyre M. Stottlemyre	85	843.2	111	51	39	.567	111	2.92	371	57	10	0	763	274	315	58	250	16	0	25	3,471	21	3.96	2.67	1.48	0.62	10.7	7.2	1.20	.254	3.36	3.49	97	8.14	6.7
20	Steve Carlton S. Carlton	86	763.1	102	47	39	.547	100	3.18	575	43	8	0	699	270	309	63	300	11	0	33	3,225	33	6.78	3.54	1.92	0.74	17.8	9.3	1.31	.279	3.64	3.31	93	8.24	21.1
21	Diego Segui D. Segui	86	450.2	139	32	24	.571	48	3.00	289	10	2	14	379	150	175	36	192	8	52	17	1,886	11	5.77	3.83	1.51	0.72	15.3	10.2	1.27	.252	3.49	3.62	100	7.57	-0.6
22	Sonny Siebert S. Siebert	87	635.1	110	45	29	.608	89	3.33	406	21	6	5	588	235	280	71	196	13	13	8	2,649	17	5.75	2.78	2.07	1.01	15.3	7.4	1.23	.263	3.97	3.69	93	8.33	21
23	Dick Bosman D. Bosman	87	660.1	102	42	33	.560	95	3.03	346	19	6	1	613	222	250	56	181	9	4	17	2,706	8	4.72	2.47	1.91	0.76	12.8	6.7	1.20	.263	3.41	3.45	95	8.35	13.2
24	Dave McNally D. McNally	87	789.0	111	65	21	.756	110	3.13	442	38	6	0	697	274	292	74	220	17	0	11	3,210	17	5.04	2.51	2.01	0.84	13.8	6.9	1.16	.254	3.33	3.54	95	7.95	16.6
25	Mickey Lolich M. Lolich	89	929.1	122	58	44	.569	120	3.24	809	57	8	1	822	335	369	85	323	26	1	15	3,891	35	7.83	3.13	2.50	0.82	20.8	8.3	1.23	.278	3.57	3.09	81	7.96	72.8