Tom Seaver had the lowest ERA in the NL in 1971, with an ERA of 1.76.

Interpreted as:

Who had the best era with a minimum of 1 IP per team game in the nl in 1971?

	NAME	ERA	SEASON	TM	G	W	L	W%	GS	SO	CG	SHO	SV	IP	H	ER	R	HR	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	Tom Seaver T. Seaver	1.76	1971	NYM	36	20	10	.667	35	289	21	4	0	286.1	210	56	61	18	61	4	1	2	1,103	5	9.08	1.92	4.74	0.57	26.2	5.5	0.95	.263	1.92	52	1.93	58	6.60	44.5
2	Dave Roberts D. Roberts	2.10	1971	SDP	37	14	17	.452	34	135	14	2	0	269.2	238	63	79	9	61	5	3	9	1,086	4	4.51	2.04	2.21	0.30	12.4	5.6	1.11	.261	2.64	63	2.61	81	7.94	19
3	Don Wilson D. Wilson	2.45	1971	HOU	35	16	10	.615	34	180	18	3	0	268.0	195	73	80	15	79	7	0	3	1,067	5	6.04	2.65	2.28	0.50	16.9	7.4	1.02	.229	2.69	72	2.79	84	6.55	15.3
4	Ken Forsch K. Forsch	2.53	1971	HOU	33	8	8	.500	23	131	7	2	0	188.1	162	53	60	8	53	4	4	5	771	8	6.26	2.53	2.47	0.38	17.0	6.9	1.14	.268	2.87	75	2.52	76	7.74	16.7
5	Don Sutton D. Sutton	2.54	1971	LAD	38	17	12	.586	37	194	12	4	1	265.1	231	75	85	10	55	5	1	5	1,059	5	6.58	1.87	3.53	0.34	18.3	5.2	1.08	.278	2.88	77	2.15	67	7.84	32
6	Don Gullett D. Gullett	2.65	1971	CIN	35	16	6	.727	31	107	4	3	0	217.2	196	64	73	14	64	2	0	6	891	3	4.42	2.65	1.67	0.58	12.0	7.2	1.19	.259	3.02	80	3.21	99	8.10	0.3
7	Al Downing A. Downing	2.68	1971	LAD	37	20	9	.690	36	136	12	5	0	262.1	245	78	93	16	84	3	0	3	1,095	12	4.67	2.88	1.62	0.55	12.4	7.7	1.25	.268	3.19	81	3.20	100	8.41	-0.4
8	Gaylord Perry G. Perry	2.76	1971	SFG	37	16	12	.571	37	158	14	2	0	280.0	255	86	116	20	67	5	0	4	1,149	8	5.08	2.15	2.36	0.64	13.8	5.8	1.15	.261	3.73	80	3.02	89	8.20	11.1
9	Fergie Jenkins F. Jenkins	2.77	1971	CHC	39	24	13	.649	39	263	30	3	0	325.0	304	100	114	29	37	5	0	6	1,299	3	7.28	1.02	7.11	0.80	20.2	2.8	1.05	.285	3.16	73	2.38	64	8.42	45.3
10	Clay Kirby C. Kirby	2.83	1971	SDP	38	15	13	.536	36	231	13	2	0	267.1	213	84	99	20	103	3	0	14	1,107	13	7.78	3.47	2.24	0.67	20.9	9.3	1.18	.257	3.33	85	2.88	89	7.17	10.5
11	Steve Blass S. Blass	2.85	1971	PIT	33	15	8	.652	33	136	12	5	0	240.0	226	76	81	16	68	2	0	8	996	4	5.10	2.55	2.00	0.60	13.7	6.8	1.23	.271	3.04	85	3.05	93	8.48	5.6
12	Rick Wise R. Wise	2.88	1971	PHI	38	17	14	.548	37	155	17	4	0	272.1	261	87	110	20	70	4	0	5	1,123	7	5.12	2.31	2.21	0.66	13.8	6.2	1.22	.276	3.64	81	3.08	89	8.63	12
13	John Cumberland J. Cumberland	2.92	1971	SFG	45	9	6	.600	21	65	5	2	2	185.0	153	60	66	22	55	0	7	6	750	4	3.16	2.68	1.18	1.07	8.7	7.3	1.12	.215	3.21	84	4.18	124	7.44	-16.6
14	Ray Sadecki R. Sadecki	2.92	1971	NYM	34	7	7	.500	20	120	5	2	0	163.1	139	53	56	10	44	4	3	5	664	0	6.61	2.42	2.73	0.55	18.1	6.6	1.12	.265	3.09	86	2.65	80	7.66	11.9
15	Juan Marichal J. Marichal	2.94	1971	SFG	37	18	11	.621	37	159	18	4	0	279.0	244	91	113	27	56	3	0	6	1,124	6	5.13	1.81	2.84	0.87	14.1	5.0	1.08	.247	3.65	85	3.20	95	7.87	5.4
16	Phil Niekro P. Niekro	2.98	1971	ATL	42	15	14	.517	36	173	18	4	2	268.2	248	89	112	27	70	3	4	6	1,101	8	5.80	2.34	2.47	0.90	15.7	6.4	1.18	.267	3.75	80	3.28	91	8.31	10.1
17	Bob Gibson B. Gibson	3.04	1971	STL	31	16	13	.552	31	185	20	5	0	245.2	215	83	96	14	76	7	0	11	1,026	10	6.78	2.78	2.43	0.51	18.0	7.4	1.18	.270	3.52	88	2.69	80	7.88	18.5
18	Jerry Koosman J. Koosman	3.04	1971	NYM	26	6	11	.353	24	96	4	0	0	165.2	160	56	66	12	51	1	0	4	694	7	5.22	2.77	1.88	0.65	13.8	7.3	1.27	.277	3.59	90	3.17	96	8.69	2.4
19	Dock Ellis D. Ellis	3.06	1971	PIT	31	19	9	.679	31	137	11	2	0	226.2	207	77	93	15	63	2	0	5	943	4	5.44	2.50	2.17	0.60	14.5	6.7	1.19	.264	3.69	91	2.96	90	8.22	7.8
20	Bill Stoneman B. Stoneman	3.15	1971	MON	39	17	16	.515	38	251	19	3	0	294.2	243	103	112	20	146	5	1	11	1,243	10	7.67	4.46	1.72	0.61	20.2	11.7	1.32	.272	3.42	89	3.16	92	7.42	9.2
21	Gary Nolan G. Nolan	3.16	1971	CIN	35	12	15	.444	35	146	9	0	0	244.2	208	86	91	12	59	2	0	11	991	1	5.37	2.17	2.47	0.44	14.7	6.0	1.09	.254	3.35	95	2.64	81	7.65	16.5
22	Jim McGlothlin J. McGlothlin	3.22	1971	CIN	30	8	12	.400	26	93	6	0	0	170.2	151	61	65	15	47	4	2	4	683	7	4.90	2.48	1.98	0.79	13.6	6.9	1.16	.260	3.43	97	3.40	105	7.96	-3.4
23	Gary Gentry G. Gentry	3.23	1971	NYM	32	12	11	.522	31	155	8	3	0	203.1	167	73	84	16	82	6	0	8	850	2	6.86	3.63	1.89	0.71	18.2	9.6	1.22	.255	3.72	95	3.24	98	7.39	1.3
24	Jack Billingham J. Billingham	3.39	1971	HOU	33	10	16	.385	33	139	8	3	0	228.1	205	86	98	9	68	16	0	8	943	6	5.48	2.68	2.04	0.35	14.7	7.2	1.20	.276	3.86	100	2.84	86	8.08	11.7
25	Bill Hands B. Hands	3.42	1971	CHC	36	12	18	.400	35	128	14	1	0	242.1	248	92	112	27	50	2	1	6	1,019	5	4.75	1.86	2.56	1.00	12.6	4.9	1.23	.272	4.16	90	3.48	94	9.21	6.7