Lefty Grove had the best ERA in the AL in 1929, with an ERA of 2.81.

Interpreted as:

Who had the best era with a minimum of 1 IP per team game in the al in 1929?

	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	2.81	1929	PHA	42	20	6	.769	37	170	19	2	4	275.1	278	86	104	8	81	3	5	1,168	8	5.56	2.65	2.10	0.26	14.6	6.9	1.30	.298	3.40	66	3.22	73	9.09	35.7
2	Firpo Marberry F. Marberry	3.06	1929	WSH	49	19	12	.613	26	121	16	0	9	250.1	233	85	100	6	69	6	21	1,027	2	4.35	2.48	1.75	0.22	11.8	6.7	1.21	.275	3.60	73	3.41	78	8.38	26.1
3	Tommy Thomas T. Thomas	3.19	1929	CWS	36	14	18	.438	31	62	24	2	1	259.2	270	92	127	17	60	0	4	1,093	3	2.15	2.08	1.03	0.59	5.7	5.5	1.27	.265	4.40	76	4.23	97	9.36	3.1
4	George Earnshaw G. Earnshaw	3.29	1929	PHA	44	24	8	.750	33	149	13	3	1	254.2	233	93	110	8	125	5	5	1,115	8	5.27	4.42	1.19	0.28	13.4	11.2	1.41	.272	3.89	78	3.93	90	8.23	12.9
5	Willis Hudlin W. Hudlin	3.34	1929	CLE	40	17	15	.531	33	60	22	2	1	280.1	299	104	122	7	73	1	6	1,201	2	1.93	2.34	0.82	0.22	5.0	6.1	1.33	.275	3.92	76	3.85	85	9.60	20.9
6	Jake Miller J. Miller	3.58	1929	CLE	29	14	12	.538	29	58	14	2	0	206.0	227	82	98	7	60	7	0	896	0	2.53	2.62	0.97	0.31	6.5	6.7	1.39	.288	4.28	82	4.02	89	9.92	11.7
7	Bill Shores B. Shores	3.60	1929	PHA	39	11	6	.647	13	49	5	1	7	152.2	150	61	71	9	59	3	19	653	1	2.89	3.48	0.83	0.53	7.5	9.0	1.37	.265	4.19	85	4.50	103	8.84	-2
8	Wes Ferrell W. Ferrell	3.60	1929	CLE	43	21	10	.677	25	100	18	1	5	242.2	256	97	112	7	109	3	12	1,061	2	3.71	4.04	0.92	0.26	9.4	10.3	1.50	.296	4.15	82	4.10	91	9.49	11.6
9	Rube Walberg R. Walberg	3.60	1929	PHA	40	18	11	.621	33	94	20	3	4	267.2	256	107	115	22	99	0	6	1,139	4	3.16	3.33	0.95	0.74	8.3	8.7	1.33	.253	3.87	85	4.64	106	8.61	-7.5
10	Roy Sherid R. Sherid	3.61	1929	NYY	33	6	6	.500	15	51	9	0	1	154.2	165	62	81	6	55	5	13	668	2	2.97	3.20	0.93	0.35	7.6	8.2	1.42	.289	4.71	90	4.17	100	9.60	-0.8
11	Danny MacFayden D. MacFayden	3.62	1929	BSA	32	10	18	.357	27	61	14	4	0	221.0	225	89	108	8	81	5	1	938	2	2.48	3.30	0.75	0.33	6.5	8.6	1.38	.277	4.40	88	4.25	100	9.16	-0.4
12	Hal McKain H. McKain	3.65	1929	CWS	34	6	9	.400	10	33	4	1	1	158.0	158	64	84	10	85	10	15	701	1	1.88	4.84	0.39	0.57	4.7	12.1	1.54	.263	4.78	87	5.37	124	9.00	-18.4
13	Sam Gray S. Gray	3.72	1929	SLA	43	18	15	.545	37	109	23	4	1	305.0	336	126	142	18	96	1	2	1,310	7	3.22	2.83	1.14	0.53	8.3	7.3	1.42	.293	4.19	84	4.17	91	9.91	13.9
14	Milt Gaston M. Gaston	3.73	1929	BSA	39	12	19	.387	28	83	20	1	2	243.2	265	101	121	15	81	3	9	1,029	17	3.07	2.99	1.02	0.55	8.1	7.9	1.42	.295	4.47	91	4.32	101	9.79	-2.3
15	Red Faber R. Faber	3.88	1929	CWS	31	13	13	.500	31	68	15	1	0	234.0	241	101	119	10	61	9	0	984	3	2.62	2.35	1.11	0.38	6.9	6.2	1.29	.276	4.58	93	4.03	93	9.27	7.9
16	Alvin Crowder A. Crowder	3.91	1929	SLA	40	17	15	.531	34	79	19	4	4	266.2	272	116	133	22	93	0	5	1,128	2	2.67	3.14	0.85	0.74	7.0	8.2	1.37	.268	4.49	89	4.69	103	9.18	-2.7
17	Jack Russell J. Russell	3.92	1929	BSA	35	6	18	.250	32	37	13	0	0	227.1	263	99	132	12	40	3	3	978	1	1.46	1.58	0.93	0.48	3.8	4.1	1.33	.283	5.23	95	4.09	96	10.41	3.7
18	Sad Sam Jones S. Sam Jones	3.92	1929	WSH	24	9	9	.500	24	36	8	1	0	153.2	156	67	80	5	49	3	0	659	3	2.11	2.87	0.73	0.29	5.5	7.4	1.33	.267	4.69	93	4.13	95	9.14	3.5
19	Jack Quinn J. Quinn	3.97	1929	PHA	35	11	9	.550	18	41	7	0	2	161.0	182	71	87	8	39	1	9	687	3	2.29	2.18	1.05	0.45	6.0	5.7	1.37	.291	4.86	94	4.04	92	10.17	6.1
20	Rip Collins R. Collins	4.00	1929	SLA	26	11	6	.647	20	47	10	1	1	155.1	162	69	79	16	73	6	5	692	1	2.72	4.23	0.64	0.93	6.8	10.5	1.51	.265	4.58	91	5.42	119	9.39	-13.7
21	George Uhle G. Uhle	4.08	1929	DET	32	15	11	.577	30	100	22	1	0	249.0	283	113	141	9	58	2	2	1,084	6	3.61	2.10	1.72	0.33	9.2	5.4	1.37	.299	5.10	94	3.55	79	10.23	26.6
22	Ted Lyons T. Lyons	4.10	1929	CWS	37	14	20	.412	31	57	21	1	2	259.1	276	118	136	11	76	2	6	1,102	3	1.98	2.64	0.75	0.38	5.2	6.9	1.36	.277	4.72	98	4.18	96	9.58	4.6
23	George Blaeholder G. Blaeholder	4.18	1929	SLA	42	14	15	.483	24	72	13	4	2	222.0	237	103	113	18	61	0	10	954	2	2.92	2.47	1.18	0.73	7.5	6.4	1.34	.273	4.58	95	4.39	96	9.61	4.8
24	Lloyd Brown L. Brown	4.18	1929	WSH	40	8	7	.533	15	48	7	1	0	168.0	186	78	92	7	69	1	12	727	9	2.57	3.70	0.70	0.38	6.6	9.5	1.52	.297	4.93	100	4.38	101	9.96	-0.9
25	George Pipgras G. Pipgras	4.23	1929	NYY	39	18	12	.600	33	125	13	3	0	225.1	229	106	132	16	95	5	3	987	4	4.99	3.79	1.32	0.64	12.7	9.6	1.44	.286	5.27	105	4.31	103	9.15	-4.7