Hippo Vaughn had the lowest ERA in the NL in 1918, with an ERA of 1.74.

Interpreted as:

Who had the best era with a minimum of 1 IP per team game in the nl in 1918?

	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	Hippo Vaughn H. Vaughn	1.74	1918	CHC	35	22	10	.688	33	148	27	8	0	290.1	216	56	75	4	76	7	2	1,146	4	4.59	2.36	1.95	0.12	12.9	6.6	1.01	.233	2.32	61	2.25	81	6.70	17.3
2	Lefty Tyler L. Tyler	2.00	1918	CHC	33	19	8	.704	30	102	22	6	1	269.1	218	60	72	1	67	5	3	1,066	1	3.41	2.24	1.52	0.03	9.6	6.3	1.06	.244	2.41	70	2.32	84	7.28	13.9
3	Wilbur Cooper W. Cooper	2.11	1918	PIT	38	19	14	.576	29	117	26	2	3	273.1	219	64	86	2	65	10	9	1,078	4	3.85	2.14	1.80	0.07	10.9	6.0	1.04	.245	2.83	75	2.29	83	7.21	14.1
4	Phil Douglas P. Douglas	2.13	1918	CHC	25	10	9	.526	19	51	11	2	2	156.2	145	37	57	2	31	1	6	642	2	2.93	1.78	1.65	0.11	7.9	4.8	1.12	.257	3.27	75	2.36	85	8.33	7.5
5	Burleigh Grimes B. Grimes	2.13	1918	BKN	40	19	9	.679	30	113	19	7	1	270.0	210	64	94	3	76	4	9	1,078	11	3.77	2.53	1.49	0.10	10.5	7.1	1.06	.235	3.13	76	2.43	88	7.00	10
6	Slim Sallee S. Sallee	2.25	1918	NYG	18	8	8	.500	16	33	12	1	2	132.0	122	33	44	3	12	0	2	531	1	2.25	0.82	2.75	0.20	6.2	2.3	1.02	.246	3.00	84	2.30	88	8.32	4.4
7	Red Ames R. Ames	2.31	1918	SLN	27	9	14	.391	25	68	17	0	1	206.2	192	53	75	1	52	5	2	844	5	2.96	2.26	1.31	0.04	8.1	6.2	1.18	.266	3.27	84	2.46	92	8.36	4.6
8	Hod Eller H. Eller	2.36	1918	CIN	37	16	12	.571	22	84	14	0	1	217.2	205	57	71	1	59	6	13	899	0	3.47	2.44	1.42	0.04	9.3	6.6	1.21	.272	2.94	88	2.42	92	8.48	4.3
9	Frank Miller F. Miller	2.38	1918	PIT	23	11	8	.579	23	47	14	2	0	170.1	152	45	60	1	37	7	0	677	1	2.48	1.95	1.27	0.05	6.9	5.5	1.11	.258	3.17	84	2.53	92	8.03	4.4
10	Bill Doak B. Doak	2.43	1918	SLN	31	9	15	.375	23	74	16	1	1	211.0	191	57	76	3	60	4	7	865	2	3.16	2.56	1.23	0.13	8.6	6.9	1.19	.260	3.24	89	2.62	98	8.15	0.8
11	Fred Toney F. Toney	2.43	1918	TOT	32	12	12	.500	28	51	16	2	3	222.0	203	60	80	3	38	2	4	878	1	2.07	1.54	1.34	0.12	5.8	4.3	1.09	.255	3.24	91	2.49	95	8.23	2.6
12	Al Demaree A. Demaree	2.47	1918	NYG	26	8	6	.571	14	39	8	2	1	142.0	143	39	56	5	25	2	7	585	0	2.47	1.58	1.56	0.32	6.7	4.3	1.18	.268	3.55	92	2.71	104	9.06	-2
13	Bunny Hearn B. Hearn	2.49	1918	BSN	17	5	6	.455	12	30	9	1	0	126.1	119	35	43	2	29	0	5	509	0	2.14	2.07	1.03	0.14	5.9	5.7	1.17	.261	3.06	94	2.65	102	8.48	-1.4
14	Brad Hogg B. Hogg	2.53	1918	PHN	29	13	13	.500	25	81	17	3	1	228.0	201	64	83	3	61	6	2	924	5	3.20	2.41	1.33	0.12	8.8	6.6	1.15	.256	3.28	86	2.57	90	7.93	8
15	Dick Rudolph D. Rudolph	2.57	1918	BSN	21	9	10	.474	20	48	15	3	0	154.0	144	44	63	2	30	0	1	615	1	2.81	1.75	1.60	0.12	7.8	4.9	1.13	.265	3.68	97	2.36	91	8.42	3.4
16	Roy Sanders R. Sanders	2.60	1918	PIT	28	7	9	.438	14	55	6	1	1	156.0	135	45	59	1	52	2	14	644	4	3.17	3.00	1.06	0.06	8.5	8.1	1.20	.251	3.40	92	2.65	96	7.79	2
17	Rube Marquard R. Marquard	2.64	1918	BKN	34	9	18	.333	29	89	19	4	0	239.0	231	70	97	7	59	1	3	980	3	3.35	2.22	1.51	0.26	9.1	6.0	1.21	.272	3.65	94	2.62	95	8.70	3.8
18	Erskine Mayer E. Mayer	2.65	1918	TOT	28	16	7	.696	27	41	18	1	0	227.1	230	67	86	3	53	8	0	940	1	1.62	2.10	0.77	0.12	4.4	5.6	1.24	.272	3.40	92	2.85	102	9.11	-0.4
19	Art Nehf A. Nehf	2.69	1918	BSN	32	15	15	.500	31	96	28	2	0	284.1	274	85	107	2	76	6	1	1,167	4	3.04	2.41	1.26	0.06	8.2	6.5	1.23	.276	3.39	101	2.51	97	8.67	1.3
20	Bill Sherdel B. Sherdel	2.71	1918	SLN	35	6	12	.333	16	40	9	1	0	182.1	174	55	78	3	49	3	14	744	0	1.97	2.42	0.82	0.15	5.4	6.6	1.22	.263	3.85	99	2.86	107	8.59	-4.1
21	Pol Perritt P. Perritt	2.74	1918	NYG	35	18	13	.581	31	60	19	6	0	233.0	212	71	82	5	38	1	4	928	3	2.32	1.47	1.58	0.19	6.5	4.1	1.07	.251	3.17	102	2.50	96	8.19	2.4
22	Claude Hendrix C. Hendrix	2.78	1918	CHC	32	20	7	.741	27	86	21	3	0	233.0	229	72	87	2	54	5	4	966	8	3.32	2.09	1.59	0.08	8.9	5.6	1.21	.277	3.36	98	2.36	85	8.85	11
23	Red Causey R. Causey	2.79	1918	NYG	29	11	6	.647	18	48	10	2	2	158.1	143	49	58	2	42	7	10	648	4	2.73	2.39	1.14	0.11	7.4	6.5	1.17	.257	3.30	104	2.72	104	8.13	-2.3
24	Jimmy Ring J. Ring	2.85	1918	CIN	21	9	5	.643	18	26	13	4	0	142.1	130	45	57	5	48	3	3	589	1	1.64	3.04	0.54	0.32	4.4	8.1	1.25	.247	3.60	106	3.40	130	8.22	-13.2
25	Mike Prendergast M. Prendergast	2.89	1918	PHN	33	13	14	.481	30	41	20	0	1	252.1	257	81	102	6	46	1	3	1,030	5	1.46	1.64	0.89	0.21	4.0	4.5	1.20	.268	3.64	99	2.77	97	9.17	3.5