lowest era- by a player with at least 700 ip between 1927 to 1931

Between the 1927 and 1931 seasons, Lefty Grove had the lowest ERA- when pitching at least 700 innings, with an ERA- of 61.

	NAME	ERA-	IP	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	H	ER	R	HR	BB	HBP	GF	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	FIP	FIP-	H/9	PRAA
1	Lefty Grove L. Grove	61	1379.0	223	123	36	.774	158	2.62	911	106	13	30	1,279	402	498	42	346	12	56	5,689	21	5.95	2.26	2.63	0.27	16.0	6.1	1.18	.283	3.25	3.00	69	8.35	203.3
2	Dazzy Vance D. Vance	69	1262.1	168	80	66	.548	151	2.88	833	98	13	4	1,174	404	483	65	296	27	14	5,206	11	5.94	2.11	2.81	0.46	16.0	5.7	1.16	.278	3.44	3.25	77	8.37	137.5
3	Bill Walker B. Walker	76	742.2	130	50	37	.575	93	3.30	334	46	9	6	743	272	331	45	245	15	27	3,187	6	4.05	2.97	1.36	0.55	10.5	7.7	1.33	.274	4.01	4.17	95	9.00	13.9
4	Carl Hubbell C. Hubbell	76	881.2	132	59	41	.590	111	3.33	415	65	9	7	864	326	385	49	213	24	17	3,688	12	4.24	2.17	1.95	0.50	11.3	5.8	1.22	.273	3.93	3.79	88	8.82	53.2
5	Wes Ferrell W. Ferrell	77	832.2	129	68	37	.648	97	3.55	370	71	4	11	849	328	395	30	352	6	25	3,637	10	4.00	3.80	1.05	0.32	10.2	9.7	1.44	.284	4.27	4.13	89	9.18	47.5
6	Watty Clark W. Clark	79	980.2	186	62	53	.539	113	3.39	434	55	9	14	1,014	369	430	44	230	5	50	4,131	11	3.98	2.11	1.89	0.40	10.5	5.6	1.27	.284	3.95	3.58	83	9.31	78.2
7	Jack Quinn J. Quinn	80	727.2	174	58	37	.611	79	3.40	180	36	7	23	806	275	340	27	156	14	61	3,086	6	2.23	1.93	1.15	0.33	5.8	5.1	1.32	.288	4.21	3.78	89	9.97	36
8	Burleigh Grimes B. Grimes	80	1236.2	182	94	49	.657	156	3.42	401	89	12	7	1,316	470	586	54	358	34	23	5,294	16	2.92	2.61	1.12	0.39	7.6	6.8	1.35	.284	4.26	3.98	93	9.58	46
9	Pat Malone P. Malone	82	1017.2	163	76	41	.650	120	3.56	575	69	10	9	1,020	403	479	50	385	22	33	4,386	25	5.09	3.40	1.49	0.44	13.1	8.8	1.38	.289	4.24	3.89	89	9.02	57.8
10	Jesse Haines J. Haines	84	1025.0	147	82	39	.678	130	3.67	320	79	9	2	1,090	418	490	63	304	14	11	4,357	17	2.81	2.67	1.05	0.55	7.3	7.0	1.36	.281	4.30	4.22	97	9.57	11.8
11	George Earnshaw G. Earnshaw	86	990.2	162	74	35	.679	124	3.82	611	63	12	10	930	421	483	51	439	10	26	4,301	30	5.55	3.99	1.39	0.46	14.2	10.2	1.38	.276	4.39	4.00	91	8.45	46.7
12	Ted Lyons T. Lyons	88	1205.2	179	77	69	.527	140	3.67	273	108	4	13	1,291	491	604	47	301	6	36	5,100	10	2.04	2.25	0.91	0.35	5.4	5.9	1.32	.278	4.51	3.97	95	9.64	24.5
13	Firpo Marberry F. Marberry	88	971.0	231	73	41	.640	94	3.73	415	45	4	28	971	402	455	42	295	15	100	4,076	7	3.85	2.73	1.41	0.39	10.2	7.2	1.30	.281	4.22	3.82	90	9.00	43.9
14	Charlie Root C. Root	88	1289.1	207	92	67	.579	158	3.71	646	87	16	15	1,283	531	608	68	407	33	39	5,476	6	4.51	2.84	1.59	0.47	11.8	7.4	1.31	.281	4.24	3.84	91	8.96	58.2
15	Tommy Thomas T. Thomas	88	1264.2	189	65	77	.458	162	3.69	428	90	10	7	1,345	518	642	77	343	11	20	5,413	7	3.05	2.44	1.25	0.55	7.9	6.3	1.33	.278	4.57	4.06	99	9.57	4.5
16	Lefty Stewart L. Stewart	89	977.0	150	58	55	.513	120	3.98	283	69	4	4	1,065	432	505	62	279	12	23	4,187	2	2.61	2.57	1.01	0.57	6.8	6.7	1.38	.282	4.65	4.32	96	9.81	20.6
17	Bump Hadley B. Hadley	89	1065.2	197	58	56	.509	130	3.76	524	52	6	10	996	445	520	26	468	29	43	4,586	17	4.43	3.95	1.12	0.22	11.4	10.2	1.37	.274	4.39	3.89	92	8.41	39
18	Lloyd Brown L. Brown	89	730.2	147	43	37	.538	79	3.83	224	34	3	1	774	311	373	32	253	8	44	3,130	19	2.76	3.12	0.89	0.39	7.2	8.1	1.41	.284	4.59	4.23	99	9.53	4.5
19	Rube Walberg R. Walberg	89	1249.0	206	84	59	.587	161	3.87	548	80	9	15	1,254	537	619	80	448	9	36	5,350	14	3.95	3.23	1.22	0.58	10.2	8.4	1.36	.275	4.46	4.18	97	9.04	18.9
20	Sheriff Blake S. Blake	89	991.0	165	58	61	.487	123	3.86	352	50	7	4	1,058	425	513	35	446	16	25	4,349	21	3.20	4.05	0.79	0.32	8.1	10.3	1.52	.292	4.66	4.27	99	9.61	3.8
21	Jesse Petty J. Petty	89	770.2	137	41	52	.441	99	3.76	267	46	5	4	842	322	388	53	170	11	21	3,300	7	3.12	1.99	1.57	0.62	8.1	5.2	1.31	.282	4.53	3.98	95	9.83	19.1
22	Sad Sam Jones S. Sam Jones	90	899.1	134	58	47	.552	126	3.83	289	60	7	1	956	383	473	36	337	16	5	3,920	15	2.89	3.37	0.86	0.36	7.4	8.6	1.44	.284	4.73	4.19	99	9.57	6
23	Freddie Fitzsimmons F. Fitzsimmons	90	1205.2	195	89	48	.650	154	3.74	354	80	11	6	1,238	501	604	84	319	11	28	5,068	24	2.64	2.38	1.11	0.63	7.0	6.3	1.29	.268	4.51	4.27	102	9.24	-11.2
24	George Uhle G. Uhle	90	1048.2	150	58	61	.487	127	3.91	423	83	7	8	1,151	456	548	48	289	28	23	4,533	20	3.63	2.48	1.46	0.41	9.3	6.4	1.37	.295	4.70	3.85	88	9.88	62.1
25	Ray Kremer R. Kremer	90	1172.2	172	83	58	.589	154	3.98	306	82	6	1	1,296	519	602	81	309	11	13	5,046	16	2.35	2.37	0.99	0.62	6.1	6.1	1.37	.280	4.62	4.35	99	9.95	7.7