lowest era in 1930s with a minimum of 100 inning pitched

Between the 1930 and 1939 seasons, Marius Russo had the lowest ERA when pitching at least 100 innings, with an ERA of 2.41.

Interpreted as:

lowest era by a player in 1930s with a minimum of 100 inning pitched

	NAME	ERA	IP	G	W	L	W%	GS	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	ERA-	FIP	FIP-	H/9	PRAA
1	Marius Russo M. Russo	2.41	116.0	21	8	3	.727	11	55	9	2	3	86	31	37	6	41	1	5	462	1	4.27	3.18	1.34	0.47	11.9	8.9	1.09	.223	2.87	54	3.78	88	6.67	6.3
2	Junior Thompson J. Thompson	2.54	152.1	42	13	5	.722	11	87	5	3	2	130	43	51	6	55	3	19	625	1	5.14	3.25	1.58	0.35	13.9	8.8	1.21	.262	3.01	67	3.48	88	7.68	7.9
3	Bob Bowman B. Bowman	2.60	169.1	51	13	5	.722	15	78	4	2	8	141	49	54	8	60	1	19	692	3	4.15	3.19	1.30	0.43	11.3	8.7	1.19	.244	2.87	63	3.75	87	7.49	10.2
4	Carl Hubbell C. Hubbell	2.71	2596.2	383	188	104	.644	303	1,281	197	31	30	2,437	782	917	147	467	39	66	10,584	34	4.44	1.62	2.74	0.51	12.1	4.4	1.12	.265	3.18	69	3.42	86	8.45	163.9
5	Lefty Grove L. Grove	2.91	2399.0	351	199	76	.724	268	1,313	197	26	31	2,344	776	907	93	639	22	72	10,054	16	4.93	2.40	2.05	0.35	13.1	6.4	1.24	.282	3.40	62	3.33	73	8.79	326
6	Dizzy Dean D. Dean	2.96	1908.1	305	147	80	.648	219	1,144	151	26	31	1,845	628	736	91	432	27	76	7,903	12	5.40	2.04	2.65	0.43	14.5	5.5	1.19	.282	3.47	75	3.19	78	8.70	192.3
7	Lou Fette L. Fette	3.00	644.2	95	41	33	.554	91	188	51	14	1	601	215	250	23	221	9	4	2,694	6	2.62	3.09	0.85	0.32	7.0	8.2	1.28	.257	3.49	84	3.93	106	8.39	-19.6
8	Hugh Casey H. Casey	3.02	253.0	53	15	10	.600	25	89	15	0	1	257	85	101	15	68	11	17	1,081	5	3.17	2.42	1.31	0.53	8.2	6.3	1.28	.269	3.59	75	3.98	96	9.14	5.6
9	Russ Bauers R. Bauers	3.11	485.2	90	28	24	.538	62	247	24	4	5	429	168	204	13	208	12	19	2,052	12	4.58	3.85	1.19	0.24	12.0	10.1	1.31	.265	3.78	81	3.66	92	7.95	16.6
10	Bud Tinning B. Tinning	3.19	405.2	99	22	15	.595	35	135	13	4	5	405	144	172	16	135	8	34	1,721	4	3.00	3.00	1.00	0.35	7.8	7.8	1.33	.273	3.82	89	3.86	102	8.99	-5.2
11	Bill Lee B. Lee	3.21	1570.2	240	106	70	.602	201	640	110	23	8	1,562	560	645	84	483	13	24	6,590	31	3.67	2.77	1.33	0.48	9.7	7.3	1.30	.275	3.70	82	3.88	96	8.95	30.1
12	Mort Cooper M. Cooper	3.23	234.1	49	14	7	.667	29	141	8	2	6	225	84	105	7	109	3	13	1,021	4	5.42	4.19	1.29	0.27	13.8	10.7	1.43	.286	4.03	79	3.59	84	8.64	17.4
13	Lon Warneke L. Warneke	3.23	2021.0	318	144	85	.629	247	877	146	24	11	1,993	725	845	126	555	21	46	8,471	45	3.91	2.47	1.58	0.56	10.4	6.6	1.26	.271	3.76	83	3.83	96	8.88	35.3
14	Lefty Gomez L. Gomez	3.24	2234.2	322	165	89	.650	278	1,337	163	26	10	2,031	804	949	122	904	15	28	9,505	30	5.38	3.64	1.48	0.49	14.1	9.5	1.31	.268	3.82	75	3.79	90	8.18	98
15	Jim Turner J. Turner	3.24	682.1	93	38	40	.487	86	190	55	8	1	676	246	286	44	157	9	6	2,830	3	2.51	2.07	1.21	0.58	6.7	5.5	1.22	.260	3.77	90	3.99	107	8.92	-25.5
16	Cy Blanton C. Blanton	3.28	955.1	155	58	51	.532	129	508	63	13	4	945	348	432	43	246	13	15	4,014	22	4.79	2.32	2.07	0.41	12.7	6.1	1.25	.282	4.07	83	3.41	84	8.90	71.2
17	Hi Bell H. Bell	3.31	394.2	134	22	15	.595	28	100	6	1	21	447	145	179	21	71	8	65	1,685	2	2.28	1.62	1.41	0.48	5.9	4.2	1.31	.287	4.08	82	3.90	97	10.19	7.2
18	Cliff Melton C. Melton	3.34	698.1	123	46	38	.548	81	338	33	5	12	696	259	310	35	181	11	30	2,932	4	4.36	2.33	1.87	0.45	11.5	6.2	1.26	.279	4.00	86	3.49	87	8.97	40.6
19	Hal Schumacher H. Schumacher	3.38	1736.2	274	117	81	.591	231	623	99	19	4	1,716	652	775	95	593	16	25	7,376	44	3.23	3.07	1.05	0.49	8.4	8.0	1.33	.268	4.02	89	4.07	104	8.89	-34
20	Larry French L. French	3.42	2481.2	430	156	134	.538	304	901	161	32	14	2,701	942	1,136	130	610	27	77	10,605	29	3.27	2.21	1.48	0.47	8.5	5.8	1.33	.288	4.12	86	3.81	93	9.80	77.7
21	Van Mungo V. Mungo	3.42	1715.1	275	101	99	.505	215	1,022	114	16	13	1,593	652	771	73	685	23	48	7,313	44	5.36	3.59	1.49	0.38	14.0	9.4	1.33	.276	4.05	89	3.65	92	8.36	63.8
22	Bob Feller B. Feller	3.43	785.0	118	55	30	.647	98	712	58	6	4	620	299	338	31	503	16	15	3,421	32	8.16	5.77	1.42	0.36	20.8	14.7	1.43	.273	3.88	74	3.67	82	7.11	70.1
23	Steve Swetonic S. Swetonic	3.49	451.2	92	29	26	.527	46	119	22	8	8	435	175	200	27	162	2	35	1,922	8	2.37	3.23	0.73	0.54	6.2	8.4	1.32	.253	3.99	90	4.39	110	8.67	-17.3
24	Dutch Leonard D. Leonard	3.49	886.0	180	50	46	.521	100	269	53	7	14	932	344	425	52	189	17	49	3,739	33	2.73	1.92	1.42	0.53	7.2	5.1	1.27	.274	4.32	83	3.86	93	9.47	28.9
25	Dazzy Vance D. Vance	3.50	880.0	165	50	46	.521	101	563	44	7	8	883	342	404	48	234	13	29	3,714	12	5.76	2.39	2.41	0.49	15.2	6.3	1.27	.292	4.13	88	3.44	83	9.03	72.5