Grover Alexander had the best ERA in the NL in 1920, with an ERA of 1.91.

Interpreted as:

Who had the best era with a minimum of 1 IP per team game in the nl in 1920?

	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	Grover Alexander G. Alexander	1.91	1920	CHC	46	27	14	.659	40	173	33	7	5	363.1	335	77	96	8	69	1	6	1,447	3	4.29	1.71	2.51	0.20	12.0	4.8	1.11	.273	2.38	61	2.66	81	8.30	25
2	Babe Adams B. Adams	2.16	1920	PIT	35	17	13	.567	33	84	18	8	2	263.0	240	63	83	6	18	1	2	1,035	5	2.87	0.62	4.67	0.21	8.1	1.7	0.98	.253	2.84	68	2.62	79	8.21	20.2
3	Burleigh Grimes B. Grimes	2.22	1920	BKN	40	23	11	.676	33	131	25	5	2	303.2	271	75	101	5	67	4	6	1,246	9	3.88	1.99	1.96	0.15	10.5	5.4	1.11	.256	2.99	70	2.80	85	8.03	17.4
4	Wilbur Cooper W. Cooper	2.39	1920	PIT	44	24	15	.615	37	114	28	3	2	327.0	307	87	113	4	52	11	6	1,312	1	3.14	1.43	2.19	0.11	8.7	4.0	1.10	.268	3.11	76	2.79	84	8.45	19.2
5	Dutch Ruether D. Ruether	2.47	1920	CIN	37	16	12	.571	33	99	23	5	3	265.2	235	73	87	2	96	9	4	1,086	6	3.35	3.25	1.03	0.07	9.1	8.8	1.25	.265	2.95	82	3.29	104	7.96	-5.4
6	Dolf Luque D. Luque	2.51	1920	CIN	37	13	9	.591	23	72	10	1	2	207.2	168	58	65	5	60	4	11	825	2	3.12	2.60	1.20	0.22	8.7	7.3	1.10	.238	2.82	84	3.29	105	7.28	-4.3
7	Bill Doak B. Doak	2.53	1920	SLN	39	20	12	.625	37	90	20	5	1	270.0	256	76	94	7	80	6	2	1,117	1	3.00	2.67	1.13	0.23	8.1	7.2	1.24	.267	3.13	83	3.37	105	8.53	-5.5
8	Hippo Vaughn H. Vaughn	2.54	1920	CHC	40	19	16	.543	38	131	24	4	0	301.0	301	85	113	8	81	8	2	1,255	3	3.92	2.42	1.62	0.24	10.4	6.5	1.27	.285	3.38	81	3.11	95	9.00	5.6
9	Elmer Ponder E. Ponder	2.62	1920	PIT	33	11	15	.423	23	62	14	2	0	196.0	182	57	76	3	40	2	10	803	10	2.85	1.84	1.55	0.14	7.7	5.0	1.13	.257	3.49	83	2.96	89	8.36	7.8
10	Leon Cadore L. Cadore	2.62	1920	BKN	35	15	14	.517	30	79	16	4	0	254.1	256	74	91	4	56	3	4	1,036	3	2.80	1.98	1.41	0.14	7.6	5.4	1.23	.282	3.22	83	3.03	91	9.06	8.2
11	Jesse Barnes J. Barnes	2.64	1920	NYG	43	20	15	.571	34	63	23	2	0	292.2	271	86	108	9	56	2	8	1,186	4	1.94	1.72	1.13	0.28	5.3	4.7	1.12	.248	3.32	86	3.31	103	8.33	-3.9
12	Fred Toney F. Toney	2.65	1920	NYG	42	21	11	.656	37	81	17	4	1	278.1	266	82	101	8	57	6	5	1,120	6	2.62	1.84	1.42	0.26	7.2	5.1	1.16	.267	3.27	86	3.22	100	8.60	-0.7
13	Al Mamaux A. Mamaux	2.69	1920	BKN	41	12	8	.600	17	101	9	2	3	190.2	172	57	70	2	63	4	16	764	3	4.77	2.97	1.60	0.09	13.2	8.2	1.23	.286	3.30	85	2.88	87	8.12	9.3
14	Phil Douglas P. Douglas	2.71	1920	NYG	46	14	10	.583	21	71	11	3	2	226.0	225	68	84	6	55	2	15	934	4	2.83	2.19	1.29	0.24	7.6	5.9	1.24	.274	3.35	88	3.22	100	8.96	-0.7
15	Ray Fisher R. Fisher	2.73	1920	CIN	33	10	11	.476	21	56	10	1	1	201.0	189	61	86	5	50	8	8	846	1	2.51	2.24	1.12	0.22	6.6	5.9	1.19	.253	3.85	91	3.38	107	8.46	-6.2
16	Lee Meadows L. Meadows	2.84	1920	PHN	35	16	14	.533	33	95	19	3	0	247.0	249	78	104	5	90	8	1	1,043	3	3.46	3.28	1.06	0.18	9.1	8.6	1.37	.289	3.79	82	3.43	95	9.07	6.6
17	Hod Eller H. Eller	2.95	1920	CIN	35	13	12	.520	23	76	15	1	0	210.1	208	69	79	6	52	5	9	864	3	3.25	2.23	1.46	0.26	8.8	6.0	1.24	.279	3.38	98	3.21	102	8.90	-2.4
18	Jesse Haines J. Haines	2.98	1920	SLN	47	13	20	.394	37	120	19	4	2	301.2	303	100	136	9	80	9	9	1,258	5	3.58	2.39	1.50	0.27	9.5	6.4	1.27	.283	4.06	97	3.23	100	9.04	-1
19	Jeff Pfeffer J. Pfeffer	3.01	1920	BKN	30	16	9	.640	28	80	20	2	0	215.0	225	72	81	5	45	5	2	898	5	3.35	1.88	1.78	0.21	8.9	5.0	1.26	.288	3.39	95	3.00	91	9.42	7.5
20	Rube Benton R. Benton	3.03	1920	NYG	33	9	16	.360	25	52	12	4	2	193.1	222	65	82	8	31	3	5	821	5	2.42	1.44	1.68	0.37	6.3	3.8	1.31	.294	3.82	99	3.28	102	10.33	-1.8
21	Art Nehf A. Nehf	3.08	1920	NYG	40	21	12	.636	33	79	22	4	0	280.2	273	96	113	8	45	1	5	1,128	3	2.53	1.44	1.76	0.26	7.0	4.0	1.13	.266	3.62	100	3.05	95	8.75	4.7
22	Dana Fillingim D. Fillingim	3.11	1920	BSN	37	12	21	.364	31	66	22	2	0	272.0	292	94	123	8	79	3	4	1,145	3	2.18	2.61	0.84	0.26	5.8	6.9	1.36	.287	4.07	103	3.55	113	9.66	-13.8
23	Rube Marquard R. Marquard	3.23	1920	BKN	28	10	7	.588	26	89	10	1	0	189.2	181	68	83	5	35	1	1	779	5	4.22	1.66	2.54	0.24	11.4	4.5	1.14	.271	3.94	102	2.72	82	8.59	12.5
24	Earl Hamilton E. Hamilton	3.24	1920	PIT	39	10	13	.435	23	74	12	0	3	230.1	223	83	99	2	69	2	13	968	2	2.89	2.70	1.07	0.08	7.6	7.1	1.27	.269	3.87	103	3.14	95	8.71	4.5
25	Bill Sherdel B. Sherdel	3.28	1920	SLN	43	11	10	.524	7	74	4	0	6	170.0	183	62	72	1	40	11	30	697	1	3.92	2.12	1.85	0.05	10.6	5.7	1.31	.319	3.81	107	2.85	89	9.69	6.6