Lefty Grove had the best ERA in 1931, with an ERA of 2.06.

Interpreted as:

What pitcher had the best era with a minimum of 1 IP per team game in 1931?

	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	Lefty Grove L. Grove	2.06	1931	PHA	41	31	4	.886	30	175	27	4	5	288.2	249	66	84	10	62	1	10	1,160	2	5.46	1.93	2.82	0.31	15.1	5.3	1.08	.262	2.62	47	3.01	70	7.76	40.8
2	Bill Walker B. Walker	2.26	1931	NYG	37	16	9	.640	28	121	19	6	5	239.1	212	60	78	6	64	3	7	991	2	4.55	2.41	1.89	0.23	12.2	6.5	1.15	.258	2.93	60	3.27	84	7.97	16.3
3	Carl Hubbell C. Hubbell	2.65	1931	NYG	36	14	12	.538	30	155	21	4	3	248.0	211	73	88	14	67	4	5	1,010	3	5.63	2.43	2.31	0.51	15.3	6.6	1.12	.256	3.19	71	3.46	89	7.66	11.5
4	Lefty Gomez L. Gomez	2.67	1931	NYY	40	21	9	.700	26	150	17	1	3	243.0	206	72	88	7	85	4	10	1,013	1	5.56	3.15	1.76	0.26	14.8	8.4	1.20	.259	3.26	64	3.35	83	7.63	18.2
5	Ed Brandt E. Brandt	2.92	1931	BSN	33	18	11	.621	29	112	23	3	2	250.0	228	81	94	11	77	4	4	1,035	3	4.03	2.77	1.45	0.40	10.8	7.4	1.22	.261	3.38	79	3.76	98	8.21	1.5
6	Heinie Meine H. Meine	2.98	1931	PIT	36	19	13	.594	35	58	22	3	0	284.0	278	94	121	9	87	7	1	1,202	4	1.84	2.76	0.67	0.29	4.8	7.2	1.29	.258	3.83	78	4.11	104	8.81	-4.9
7	Syl Johnson S. Johnson	3.00	1931	SLN	32	11	9	.550	24	82	12	2	2	186.0	186	62	73	9	29	2	6	766	3	3.97	1.40	2.83	0.44	10.7	3.8	1.16	.275	3.53	77	3.36	83	9.00	14.1
8	Freddie Fitzsimmons F. Fitzsimmons	3.05	1931	NYG	35	18	11	.621	33	78	19	4	0	253.2	242	86	111	16	62	0	1	1,045	5	2.77	2.20	1.26	0.57	7.5	5.9	1.20	.254	3.94	81	4.05	104	8.59	-5.5
9	Bump Hadley B. Hadley	3.06	1931	WSH	55	11	10	.524	11	124	2	1	7	179.2	145	61	81	4	92	1	28	768	4	6.21	4.61	1.35	0.20	16.1	12.0	1.32	.258	4.06	71	3.57	86	7.26	11.5
10	Tom Zachary T. Zachary	3.10	1931	BSN	33	11	15	.423	28	64	16	3	2	229.0	243	79	87	8	53	1	3	963	4	2.52	2.08	1.21	0.31	6.6	5.5	1.29	.281	3.42	84	3.72	97	9.55	2.6
11	Ray Benge R. Benge	3.17	1931	PHN	38	14	18	.438	31	117	16	2	2	247.0	251	87	107	12	61	5	7	1,044	2	4.26	2.22	1.92	0.44	11.2	5.8	1.26	.282	3.90	73	3.60	80	9.15	23.9
12	Lloyd Brown L. Brown	3.20	1931	WSH	42	15	14	.517	32	79	15	1	0	258.2	256	92	120	12	79	0	8	1,091	3	2.75	2.75	1.00	0.42	7.2	7.2	1.30	.265	4.18	75	4.02	97	8.91	3.5
13	Watty Clark W. Clark	3.20	1931	BKN	34	14	10	.583	28	96	16	3	1	233.1	243	83	86	4	52	1	2	981	3	3.70	2.01	1.85	0.15	9.8	5.3	1.26	.289	3.32	85	3.19	81	9.37	18.9
14	Bob Smith B. Smith	3.22	1931	CHC	36	15	12	.556	29	63	18	2	2	240.1	239	86	101	10	62	1	5	1,004	1	2.36	2.32	1.02	0.37	6.3	6.2	1.25	.264	3.78	83	3.92	98	8.95	2.4
15	Larry French L. French	3.26	1931	PIT	39	15	13	.536	33	73	20	1	1	275.2	301	100	127	9	70	1	4	1,170	5	2.38	2.29	1.04	0.29	6.2	6.0	1.35	.287	4.15	85	3.78	95	9.83	5.5
16	Bill Hallahan B. Hallahan	3.29	1931	SLN	37	19	9	.679	30	159	16	3	3	248.2	242	91	102	10	112	1	6	1,061	11	5.75	4.05	1.42	0.36	15.0	10.6	1.42	.298	3.69	84	3.72	92	8.76	9.1
17	Ray Kremer R. Kremer	3.33	1931	PIT	30	11	15	.423	30	58	15	1	0	230.0	246	85	110	6	65	5	0	994	3	2.27	2.54	0.89	0.23	5.8	6.5	1.35	.279	4.30	87	3.86	97	9.63	2.5
18	Larry Benton L. Benton	3.35	1931	CIN	38	10	15	.400	23	35	12	2	2	204.1	240	76	98	6	53	1	11	878	4	1.54	2.33	0.66	0.26	4.0	6.0	1.43	.299	4.32	90	3.94	103	10.57	-3.1
19	Paul Derringer P. Derringer	3.36	1931	SLN	35	18	8	.692	23	134	15	4	2	211.2	225	79	88	9	65	4	10	901	6	5.70	2.76	2.06	0.38	14.9	7.2	1.37	.313	3.74	86	3.38	84	9.57	15.7
20	Dazzy Vance D. Vance	3.38	1931	BKN	30	11	13	.458	29	150	12	2	0	218.2	221	82	99	12	53	0	1	918	1	6.17	2.18	2.83	0.49	16.3	5.8	1.25	.297	4.07	89	3.18	81	9.10	18
21	Glenn Spencer G. Spencer	3.42	1931	PIT	38	11	12	.478	18	51	11	1	3	186.2	180	71	83	8	65	5	14	783	6	2.46	3.13	0.78	0.39	6.5	8.3	1.31	.263	4.00	89	4.25	107	8.68	-6.1
22	Firpo Marberry F. Marberry	3.45	1931	WSH	45	16	4	.800	25	88	11	1	8	219.0	211	84	92	13	63	3	14	913	3	3.62	2.59	1.40	0.53	9.6	6.9	1.25	.265	3.78	80	3.98	96	8.67	3.8
23	Charlie Root C. Root	3.48	1931	CHC	39	17	14	.548	31	131	19	3	2	251.0	240	97	109	7	71	7	6	1,043	1	4.70	2.55	1.85	0.25	12.6	6.8	1.24	.282	3.91	90	3.36	84	8.61	17.9
24	George Uhle G. Uhle	3.50	1931	DET	29	11	12	.478	18	63	15	2	2	193.0	190	75	88	10	49	4	11	808	6	2.94	2.28	1.29	0.47	7.8	6.1	1.24	.264	4.10	78	3.96	91	8.86	9
25	Clise Dudley C. Dudley	3.52	1931	PHN	30	8	14	.364	24	50	8	0	0	179.0	206	70	95	10	56	6	3	793	7	2.51	2.82	0.89	0.50	6.3	7.1	1.46	.292	4.78	81	4.32	96	10.36	4.5