Dan Casey had the best ERA in the NL in 1887, with an ERA of 2.86.

Interpreted as:

Who had the best era with a minimum of 1 IP per team game in the nl in 1887?

	NAME	ERA	SEASON	TM	G	W	L	W%	GS	SO	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	GF	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Dan Casey D. Casey	2.86	1887	PHN	45	28	13	.683	45	119	43	4	0	390.1	377	124	199	15	115	14	0	1,660	16	2.74	2.65	1.03	0.35	7.2	6.9	1.26	.259	4.59	69	4.16	96	8.69	8.7
2	Pete Conway P. Conway	2.90	1887	DET	17	8	9	.471	17	40	16	0	0	146.0	132	47	95	3	47	5	0	613	11	2.47	2.90	0.85	0.18	6.5	7.7	1.23	.249	5.86	72	4.06	96	8.14	2.7
3	Charlie Ferguson C. Ferguson	3.00	1887	PHN	37	22	10	.688	33	125	31	2	1	297.1	297	99	154	13	47	11	4	1,227	5	3.78	1.42	2.66	0.39	10.2	3.8	1.16	.275	4.66	73	3.59	83	8.99	25
4	John Clarkson J. Clarkson	3.08	1887	CWS	60	38	21	.644	59	237	56	2	0	523.0	513	179	283	19	92	8	1	2,183	25	4.08	1.58	2.58	0.33	10.9	4.2	1.16	.270	4.87	71	3.42	75	8.83	69.4
5	Tim Keefe T. Keefe	3.12	1887	NYG	56	35	19	.648	56	189	54	2	0	476.2	428	165	256	11	108	11	1	1,981	37	3.57	2.04	1.75	0.21	9.5	5.5	1.12	.251	4.83	79	3.53	86	8.08	27.2
6	Jim Whitney J. Whitney	3.22	1887	WSH	47	24	21	.533	47	146	46	2	0	404.2	430	145	253	16	42	16	0	1,718	14	3.25	0.93	3.48	0.36	8.5	2.4	1.17	.276	5.63	83	3.50	86	9.56	21.8
7	Pud Galvin P. Galvin	3.29	1887	PIT	49	28	21	.571	48	76	47	3	0	440.2	490	161	259	12	67	11	2	1,897	7	1.55	1.37	1.13	0.25	4.0	3.5	1.26	.276	5.29	86	3.82	96	10.01	0.8
8	Mickey Welch M. Welch	3.36	1887	NYG	41	22	15	.595	40	115	39	2	0	346.0	339	129	191	7	91	5	1	1,437	16	2.99	2.37	1.26	0.18	8.0	6.3	1.24	.272	4.97	85	3.71	90	8.82	12.8
9	Mark Baldwin M. Baldwin	3.40	1887	CWS	40	18	17	.514	39	164	35	1	1	334.0	329	126	218	22	122	17	2	1,465	41	4.42	3.29	1.34	0.59	11.2	8.3	1.35	.269	5.87	78	4.40	97	8.87	10.2
10	Henry Boyle H. Boyle	3.65	1887	IND	38	13	24	.351	38	85	37	0	0	328.0	356	133	204	11	69	12	0	1,424	13	2.33	1.89	1.23	0.30	6.0	4.8	1.30	.277	5.60	90	3.94	93	9.77	10.7
11	Charlie Buffinton C. Buffinton	3.66	1887	PHN	40	21	17	.553	38	160	35	1	0	332.1	352	135	224	16	92	4	1	1,431	25	4.33	2.49	1.74	0.43	11.2	6.4	1.34	.290	6.07	89	3.81	88	9.53	20.1
12	Pretzels Getzien P. Getzien	3.73	1887	DET	43	29	13	.690	42	135	41	2	0	366.2	373	152	217	24	106	2	1	1,578	18	3.31	2.60	1.27	0.59	8.6	6.7	1.31	.266	5.33	92	4.28	101	9.16	-1.8
13	Kid Madden K. Madden	3.79	1887	BSN	37	21	14	.600	37	81	36	3	0	321.0	317	135	203	19	122	20	0	1,404	10	2.27	3.42	0.66	0.53	5.8	8.7	1.37	.256	5.69	95	4.87	117	8.89	-28.1
14	Lady Baldwin L. Baldwin	3.84	1887	DET	24	13	10	.565	24	60	24	1	0	211.0	225	90	136	7	61	5	0	901	7	2.56	2.60	0.98	0.30	6.7	6.8	1.36	.284	5.80	95	4.08	96	9.60	3.6
15	George Van Haltren G. Van Haltren	3.86	1887	CWS	20	11	7	.611	18	76	18	1	1	161.0	177	69	113	8	66	16	1	722	9	4.25	3.69	1.15	0.45	10.5	9.1	1.51	.304	6.32	89	4.51	100	9.89	3.1
16	Frank Gilmore F. Gilmore	3.87	1887	WSH	28	7	20	.259	27	114	27	1	0	234.2	247	101	172	7	92	13	1	1,047	14	4.37	3.53	1.24	0.27	10.9	8.8	1.44	.292	6.60	100	4.04	99	9.47	-1.9
17	Hank O'Day H. O'Day	4.17	1887	WSH	30	8	20	.286	30	86	29	0	0	254.2	255	118	197	15	109	9	0	1,122	31	3.04	3.85	0.79	0.53	7.7	9.7	1.43	.266	6.96	107	4.76	117	9.01	-23.3
18	Jim McCormick J. McCormick	4.30	1887	PIT	36	13	23	.361	36	77	36	0	0	322.1	377	154	217	12	84	12	0	1,417	16	2.15	2.35	0.92	0.34	5.4	5.9	1.43	.296	6.06	113	4.18	105	10.53	-13.1
19	Ed Morris E. Morris	4.31	1887	PIT	38	14	22	.389	38	91	37	1	0	317.2	375	152	225	13	71	8	0	1,392	13	2.58	2.01	1.28	0.37	6.5	5.1	1.40	.299	6.37	113	3.98	100	10.62	-5.6
20	Old Hoss Radbourn O. Hoss Radbourn	4.55	1887	BSN	50	24	23	.511	50	87	48	1	0	425.0	505	215	305	21	133	14	0	1,915	20	1.84	2.82	0.65	0.44	4.5	6.9	1.50	.292	6.46	115	4.55	110	10.69	-21.7
21	Dick Conway D. Conway	4.66	1887	BSN	26	9	15	.375	26	45	25	0	0	222.1	249	115	161	10	86	7	0	996	17	1.82	3.48	0.52	0.40	4.5	8.6	1.51	.282	6.52	117	4.71	114	10.08	-15.5
22	Egyptian Healy E. Healy	5.17	1887	IND	41	12	29	.293	41	75	40	3	0	341.0	415	196	292	24	108	15	0	1,535	39	1.98	2.85	0.69	0.63	4.9	7.0	1.53	.298	7.71	128	4.83	114	10.95	-22.9
23	Stump Wiedman S. Wiedman	5.18	1887	TOT	22	13	8	.619	22	60	21	0	0	191.0	231	110	138	10	62	9	0	852	7	2.83	2.92	0.97	0.47	7.0	7.3	1.53	.311	6.50	128	4.44	105	10.88	-4.7
24	Dupee Shaw D. Shaw	6.45	1887	WSH	21	7	13	.350	20	47	20	0	0	181.1	263	130	177	8	46	3	1	852	3	2.33	2.28	1.02	0.40	5.5	5.4	1.70	.341	8.78	166	4.14	102	13.05	-3.7