Lefty Grove had the best ERA in the AL in 1930, with an ERA of 2.54.

Interpreted as:

Who had the best era with a minimum of 1 IP per team game in the al in 1930?

	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	2.54	1930	PHA	50	28	5	.848	32	209	22	2	9	291.0	273	82	101	8	60	5	17	1,191	2	6.46	1.86	3.48	0.25	17.5	5.0	1.14	.292	3.12	53	3.09	64	8.44	55.6
2	Wes Ferrell W. Ferrell	3.31	1930	CLE	43	25	13	.658	35	143	25	1	3	296.2	299	109	141	14	106	0	8	1,274	5	4.34	3.22	1.35	0.42	11.2	8.3	1.37	.282	4.28	68	4.22	86	9.07	23.6
3	Lefty Stewart L. Stewart	3.45	1930	SLA	35	20	12	.625	33	79	23	1	0	271.0	281	104	119	21	70	1	2	1,139	0	2.62	2.32	1.13	0.70	6.9	6.1	1.30	.269	3.95	72	4.71	97	9.33	4.5
4	George Uhle G. Uhle	3.65	1930	DET	33	12	12	.500	29	117	18	1	3	239.0	239	97	110	18	75	5	4	1,005	3	4.41	2.82	1.56	0.68	11.6	7.5	1.31	.280	4.14	77	4.50	94	9.00	7.9
5	Bump Hadley B. Hadley	3.73	1930	WSH	42	15	11	.577	34	162	15	1	3	260.1	242	108	123	6	105	6	7	1,113	4	5.60	3.63	1.54	0.21	14.6	9.4	1.33	.283	4.25	81	3.83	82	8.37	23.6
6	Ted Lyons T. Lyons	3.78	1930	CWS	42	22	15	.595	36	69	29	1	2	297.2	331	125	160	12	57	2	6	1,258	2	2.09	1.72	1.21	0.36	5.5	4.5	1.30	.285	4.84	84	4.16	91	10.01	12.8
7	Vic Sorrell V. Sorrell	3.86	1930	DET	35	16	11	.593	30	97	14	2	2	233.1	245	100	116	12	106	0	5	1,021	4	3.74	4.09	0.92	0.46	9.5	10.4	1.50	.289	4.47	81	4.70	98	9.45	2.7
8	Pat Caraway P. Caraway	3.86	1930	CWS	38	10	10	.500	21	83	9	1	1	193.1	194	83	96	12	57	3	12	812	0	3.86	2.65	1.46	0.56	10.2	7.0	1.30	.277	4.47	86	4.38	96	9.03	3.4
9	Alvin Crowder A. Crowder	3.89	1930	TOT	40	18	16	.529	35	107	25	1	2	279.2	276	121	133	17	96	2	4	1,188	1	3.44	3.09	1.11	0.55	9.0	8.1	1.33	.268	4.28	84	4.58	97	8.88	4.1
10	Milt Gaston M. Gaston	3.92	1930	BSA	38	13	20	.394	34	99	21	2	2	273.0	272	119	138	15	98	0	4	1,175	11	3.26	3.23	1.01	0.49	8.4	8.3	1.36	.267	4.55	86	4.57	99	8.97	0.6
11	Sad Sam Jones S. Sam Jones	4.07	1930	WSH	25	15	7	.682	25	60	14	1	0	183.1	195	83	95	4	61	3	0	787	1	2.95	2.99	0.98	0.20	7.6	7.8	1.40	.290	4.66	89	4.18	90	9.57	9.6
12	Firpo Marberry F. Marberry	4.09	1930	WSH	33	15	5	.750	22	56	9	2	1	185.0	190	84	92	15	53	0	9	774	0	2.72	2.58	1.06	0.73	7.2	6.8	1.31	.269	4.48	89	4.81	103	9.24	-3.5
13	George Pipgras G. Pipgras	4.11	1930	NYY	44	15	15	.500	30	111	15	3	5	221.0	230	101	133	9	70	8	13	974	4	4.52	2.85	1.59	0.37	11.4	7.2	1.36	.285	5.42	93	4.08	92	9.37	8.7
14	Bill Shores B. Shores	4.19	1930	PHA	31	12	4	.750	19	48	7	1	0	159.0	169	74	86	11	70	3	7	700	1	2.72	3.96	0.69	0.62	6.9	10.0	1.50	.278	4.87	88	5.17	107	9.57	-5.3
15	Red Faber R. Faber	4.21	1930	CWS	29	8	13	.381	26	62	10	0	1	169.0	188	79	101	7	49	5	2	742	3	3.30	2.61	1.27	0.37	8.4	6.6	1.40	.292	5.38	93	4.26	94	10.01	5.2
16	Mel Harder M. Harder	4.21	1930	CLE	36	11	10	.524	19	45	7	0	2	175.1	205	82	108	9	68	4	9	793	5	2.31	3.49	0.66	0.46	5.7	8.6	1.56	.294	5.54	86	4.89	99	10.52	1.6
17	Danny MacFayden D. MacFayden	4.21	1930	BSA	36	11	14	.440	33	76	18	1	2	269.1	293	126	141	9	93	6	3	1,169	2	2.54	3.11	0.82	0.30	6.5	8.0	1.43	.288	4.71	92	4.47	97	9.79	3.5
18	Earl Whitehill E. Whitehill	4.24	1930	DET	34	17	13	.567	31	109	16	0	1	220.2	248	104	139	8	80	8	3	983	2	4.45	3.26	1.36	0.33	11.1	8.1	1.49	.308	5.67	89	4.18	87	10.11	15.1
19	Lloyd Brown L. Brown	4.25	1930	WSH	38	16	12	.571	22	59	10	1	0	197.0	220	93	99	6	65	5	10	846	4	2.70	2.97	0.91	0.27	7.0	7.7	1.45	.301	4.52	92	4.36	94	10.05	6.2
20	Herb Pennock H. Pennock	4.32	1930	NYY	25	11	7	.611	19	46	11	1	0	156.1	194	75	95	8	20	0	3	676	4	2.65	1.15	2.30	0.46	6.8	3.0	1.37	.309	5.47	98	3.96	89	11.17	8.4
21	Rip Collins R. Collins	4.35	1930	SLA	35	9	7	.563	20	75	6	1	2	171.2	168	83	90	11	63	5	11	738	1	3.93	3.30	1.19	0.58	10.2	8.5	1.35	.269	4.72	91	4.65	96	8.81	4
22	Red Ruffing R. Ruffing	4.38	1930	TOT	38	15	8	.652	28	131	13	2	1	221.2	232	108	125	11	68	3	9	960	4	5.32	2.76	1.93	0.45	13.6	7.1	1.35	.296	5.08	99	3.92	88	9.42	13.3
23	Hod Lisenbee H. Lisenbee	4.40	1930	BSA	37	10	17	.370	31	47	15	0	0	237.1	254	116	130	20	86	5	6	1,028	0	1.78	3.26	0.55	0.76	4.6	8.4	1.43	.269	4.93	97	5.35	116	9.63	-20.5
24	George Earnshaw G. Earnshaw	4.44	1930	PHA	49	22	13	.629	39	193	20	3	2	296.0	299	146	162	20	139	1	6	1,299	10	5.87	4.23	1.39	0.61	14.9	10.7	1.48	.295	4.93	93	4.49	93	9.09	11.8
25	Willis Hudlin W. Hudlin	4.57	1930	CLE	37	13	16	.448	33	60	13	1	1	216.2	255	110	133	12	76	1	4	964	1	2.49	3.16	0.79	0.50	6.2	7.9	1.53	.298	5.52	94	4.73	96	10.59	5.5