Bucky Walters had the lowest ERA in the NL in 1940, with an ERA of 2.48.

Interpreted as:

Who had the best era with a minimum of 1 IP per team game in the nl in 1940?

	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	Bucky Walters B. Walters	2.48	1940	CIN	36	22	10	.688	36	115	29	3	0	305.0	241	84	95	19	92	5	0	1,207	3	3.39	2.71	1.25	0.56	9.5	7.6	1.09	.227	2.80	66	3.85	100	7.11	0
2	Claude Passeau C. Passeau	2.50	1940	CHC	46	20	13	.606	31	124	20	4	5	280.2	259	78	97	8	59	4	13	1,172	0	3.98	1.89	2.10	0.26	10.6	5.0	1.13	.257	3.11	66	3.00	77	8.31	28.2
3	Rip Sewell R. Sewell	2.80	1940	PIT	33	16	5	.762	23	60	14	2	1	189.2	169	59	71	6	67	3	3	790	2	2.85	3.18	0.90	0.28	7.6	8.5	1.24	.249	3.37	73	3.72	95	8.02	4.5
4	Jim Turner J. Turner	2.89	1940	CIN	24	14	7	.667	23	53	11	0	0	187.0	187	60	70	9	32	0	1	749	1	2.55	1.54	1.66	0.43	7.1	4.3	1.17	.272	3.37	77	3.41	88	9.00	9.3
5	Vern Olsen V. Olsen	2.97	1940	CHC	34	13	9	.591	20	71	9	4	0	172.2	172	57	64	5	62	2	6	734	0	3.70	3.23	1.15	0.26	9.7	8.4	1.36	.281	3.34	78	3.50	90	8.97	7.5
6	Luke Hamlin L. Hamlin	3.06	1940	BKN	33	9	8	.529	25	91	9	2	0	182.1	183	62	77	17	34	2	2	758	0	4.49	1.68	2.68	0.84	12.0	4.5	1.19	.270	3.80	79	3.64	92	9.03	6.8
7	Paul Derringer P. Derringer	3.06	1940	CIN	37	20	12	.625	37	115	26	3	0	296.2	280	101	110	17	48	0	0	1,205	1	3.49	1.46	2.40	0.52	9.5	4.0	1.11	.257	3.34	81	3.29	85	8.49	18.6
8	Manny Salvo M. Salvo	3.08	1940	BSN	21	10	9	.526	20	60	14	5	0	160.2	151	55	63	9	43	2	1	662	2	3.36	2.41	1.40	0.50	9.1	6.5	1.21	.259	3.53	85	3.66	99	8.46	0.1
9	Lon Warneke L. Warneke	3.14	1940	SLN	33	16	10	.615	31	85	17	1	0	232.0	235	81	103	17	47	3	2	969	3	3.30	1.82	1.81	0.66	8.8	4.9	1.22	.267	4.00	78	3.70	90	9.12	11.3
10	Dick Errickson D. Errickson	3.16	1940	BSN	34	12	13	.480	29	34	17	3	0	236.1	241	83	91	8	90	1	3	997	1	1.29	3.43	0.38	0.30	3.4	9.0	1.40	.270	3.47	87	4.14	112	9.18	-13.4
11	Hal Schumacher H. Schumacher	3.25	1940	NYG	34	13	13	.500	30	123	12	1	1	227.0	218	82	93	14	96	0	4	974	4	4.88	3.81	1.28	0.56	12.6	9.9	1.38	.275	3.69	84	3.82	96	8.64	3.9
12	Larry French L. French	3.29	1940	CHC	40	14	14	.500	33	107	18	3	2	246.0	240	90	93	12	64	4	6	1,024	0	3.91	2.34	1.67	0.44	10.4	6.3	1.24	.272	3.40	86	3.43	88	8.78	12.7
13	Junior Thompson J. Thompson	3.32	1940	CIN	33	16	9	.640	31	103	17	3	0	225.1	197	83	90	10	96	2	1	951	3	4.11	3.83	1.07	0.40	10.8	10.1	1.30	.253	3.59	88	3.80	99	7.87	1.1
14	Whit Wyatt W. Wyatt	3.46	1940	BKN	37	15	14	.517	34	124	16	5	0	239.1	233	92	105	19	62	5	3	1,000	0	4.66	2.33	2.00	0.71	12.4	6.2	1.23	.271	3.95	89	3.67	92	8.76	8.1
15	Mace Brown M. Brown	3.49	1940	PIT	48	10	9	.526	17	73	5	1	7	173.0	181	67	78	5	49	2	21	737	4	3.80	2.55	1.49	0.26	9.9	6.6	1.33	.289	4.06	91	3.25	83	9.42	13.1
16	Joe Sullivan J. Sullivan	3.55	1940	BSN	36	10	14	.417	22	64	7	0	1	177.1	157	70	89	9	89	8	9	766	2	3.25	4.52	0.72	0.46	8.4	11.6	1.39	.248	4.52	98	4.42	119	7.97	-15.8
17	Hugh Mulcahy H. Mulcahy	3.60	1940	PHN	36	13	22	.371	36	82	21	3	0	280.0	283	112	141	12	91	3	0	1,189	6	2.64	2.93	0.90	0.39	6.9	7.7	1.34	.271	4.53	94	3.82	97	9.10	3.8
18	Mort Cooper M. Cooper	3.63	1940	SLN	38	11	12	.478	29	95	16	3	3	230.2	225	93	103	12	86	3	6	992	5	3.71	3.36	1.10	0.47	9.6	8.7	1.35	.268	4.02	90	3.85	93	8.78	7.7
19	Carl Hubbell C. Hubbell	3.65	1940	NYG	31	11	12	.478	28	86	11	2	0	214.1	220	87	102	22	59	2	3	916	3	3.61	2.48	1.46	0.92	9.4	6.4	1.30	.265	4.28	94	4.22	106	9.24	-5.7
20	Kirby Higbe K. Higbe	3.72	1940	PHN	41	14	19	.424	36	137	20	1	1	283.0	242	117	126	12	121	3	4	1,194	9	4.36	3.85	1.13	0.38	11.5	10.1	1.28	.250	4.01	97	3.73	95	7.70	6.3
21	Harry Gumbert H. Gumbert	3.76	1940	NYG	35	12	14	.462	30	77	14	2	2	237.0	230	99	110	17	81	3	4	1,007	8	2.92	3.08	0.95	0.65	7.6	8.0	1.31	.257	4.18	97	4.18	105	8.73	-5.2
22	Bill Lohrman B. Lohrman	3.78	1940	NYG	31	10	15	.400	27	73	11	4	1	195.0	200	82	98	19	43	3	2	810	3	3.37	1.98	1.70	0.88	9.0	5.3	1.25	.269	4.52	97	4.06	102	9.23	-1.7
23	Bill McGee B. McGee	3.80	1940	SLN	38	16	10	.615	31	78	11	3	0	218.0	222	92	108	13	96	2	1	955	9	3.22	3.96	0.81	0.54	8.2	10.1	1.46	.273	4.46	94	4.25	103	9.17	-1.9
24	Clyde Shoun C. Shoun	3.92	1940	SLN	54	13	11	.542	19	82	13	1	6	197.1	193	86	96	13	46	2	22	816	4	3.74	2.10	1.78	0.59	10.0	5.6	1.21	.267	4.38	97	3.59	87	8.80	11.9
25	Bill Posedel B. Posedel	4.13	1940	BSN	35	12	17	.414	32	86	18	0	1	233.0	263	107	118	16	81	1	2	1,008	3	3.32	3.13	1.06	0.62	8.5	8.0	1.48	.300	4.56	114	4.05	109	10.16	-10.6