Dave Koslo had the lowest ERA in the NL in 1949, with an ERA of 2.50.

Interpreted as:

Who had the best era with a minimum of 1 IP per team game in the nl in 1949?

	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	Dave Koslo D. Koslo	2.50	1949	NYG	38	11	14	.440	23	64	15	0	4	212.0	193	59	72	13	43	0	12	856	3	2.72	1.83	1.49	0.55	7.5	5.0	1.11	.245	3.06	62	3.31	82	8.19	16.7
2	Gerry Staley G. Staley	2.73	1949	SLN	45	10	10	.500	17	55	5	2	6	171.1	154	52	65	6	41	3	14	699	2	2.89	2.15	1.34	0.32	7.9	5.9	1.14	.249	3.41	66	3.09	75	8.09	19
3	Howie Pollet H. Pollet	2.77	1949	SLN	39	20	9	.690	28	108	17	5	1	230.2	228	71	80	9	59	2	7	964	2	4.21	2.30	1.83	0.35	11.2	6.1	1.24	.279	3.12	67	2.87	70	8.90	31.1
4	Preacher Roe P. Roe	2.79	1949	BKN	30	15	6	.714	27	109	13	3	1	212.2	201	66	69	25	44	2	2	851	0	4.61	1.86	2.48	1.06	12.8	5.2	1.15	.262	2.92	68	3.66	89	8.51	10.4
5	Ken Heintzelman K. Heintzelman	3.02	1949	PHN	33	17	10	.630	32	65	15	5	0	250.0	239	84	96	19	93	1	0	1,041	2	2.34	3.35	0.70	0.68	6.2	8.9	1.33	.255	3.46	77	4.11	105	8.60	-6.4
6	Warren Spahn W. Spahn	3.07	1949	BSN	38	21	14	.600	38	151	25	4	0	302.1	283	103	125	27	86	3	0	1,258	4	4.50	2.56	1.76	0.80	12.0	6.8	1.22	.258	3.72	80	3.56	93	8.42	8.4
7	Russ Meyer R. Meyer	3.08	1949	PHN	37	17	8	.680	28	78	14	2	1	213.0	199	73	84	14	70	1	5	877	4	3.30	2.96	1.11	0.59	8.9	8.0	1.26	.259	3.55	79	3.63	93	8.41	6.1
8	Don Newcombe D. Newcombe	3.17	1949	BKN	38	17	8	.680	31	149	19	5	1	244.1	223	86	89	17	73	3	5	1,005	4	5.49	2.69	2.04	0.63	14.8	7.3	1.21	.270	3.28	77	3.13	76	8.21	26.2
9	Al Brazle A. Brazle	3.18	1949	SLN	39	14	8	.636	25	75	9	1	0	206.1	208	73	85	18	61	6	7	869	2	3.27	2.66	1.23	0.79	8.6	7.0	1.30	.268	3.71	77	3.89	95	9.07	5
10	Murry Dickson M. Dickson	3.29	1949	PIT	44	12	14	.462	20	89	11	2	0	224.1	216	82	97	17	80	6	15	948	1	3.57	3.21	1.11	0.68	9.4	8.4	1.32	.263	3.89	78	3.85	91	8.67	9.4
11	Sheldon Jones S. Jones	3.34	1949	NYG	42	15	12	.556	27	79	11	1	0	207.1	198	77	93	19	88	10	9	902	4	3.43	3.82	0.90	0.82	8.8	9.8	1.38	.254	4.04	83	4.36	108	8.59	-7.8
12	Harry Brecheen H. Brecheen	3.35	1949	SLN	32	14	11	.560	31	88	14	2	1	214.2	207	80	96	18	65	7	1	906	3	3.69	2.73	1.35	0.75	9.7	7.2	1.27	.260	4.02	81	3.79	92	8.68	7.6
13	Ken Raffensberger K. Raffensberger	3.39	1949	CIN	41	18	17	.514	38	103	20	5	0	284.0	289	107	129	23	80	2	1	1,190	2	3.26	2.54	1.29	0.73	8.7	6.7	1.30	.271	4.09	84	3.70	92	9.16	10
14	Monty Kennedy M. Kennedy	3.43	1949	NYG	38	12	14	.462	32	95	14	4	1	223.1	208	85	105	13	100	3	1	969	2	3.83	4.03	0.95	0.52	9.8	10.3	1.38	.257	4.23	85	3.80	95	8.38	5.5
15	Robin Roberts R. Roberts	3.69	1949	PHN	43	15	15	.500	31	95	11	3	4	226.2	229	93	101	15	75	5	9	933	1	3.77	2.98	1.27	0.60	10.2	8.0	1.34	.288	4.01	94	3.59	92	9.09	7.6
16	Larry Jansen L. Jansen	3.85	1949	NYG	37	15	16	.484	35	113	17	3	0	259.2	271	111	130	36	62	2	0	1,101	4	3.92	2.15	1.82	1.25	10.3	5.6	1.28	.265	4.51	95	4.18	104	9.39	-4.6
17	Red Munger R. Munger	3.87	1949	SLN	35	15	8	.652	28	82	12	2	2	188.1	179	81	86	13	87	2	4	802	3	3.92	4.16	0.94	0.62	10.2	10.8	1.41	.269	4.11	94	3.96	96	8.55	3.2
18	Cliff Chambers C. Chambers	3.96	1949	PIT	34	13	7	.650	21	93	10	1	0	177.1	186	78	89	15	58	5	6	765	1	4.72	2.94	1.60	0.76	12.2	7.6	1.38	.288	4.52	93	3.63	86	9.44	11.7
19	Howie Fox H. Fox	3.98	1949	CIN	38	6	19	.240	30	60	9	0	0	215.0	221	95	120	13	77	4	6	928	2	2.51	3.22	0.78	0.54	6.5	8.3	1.39	.269	5.02	98	3.87	96	9.25	3.6
20	Bill Voiselle B. Voiselle	4.04	1949	BSN	30	7	8	.467	22	63	5	4	1	169.1	170	76	84	14	78	1	4	737	6	3.35	4.15	0.81	0.74	8.5	10.6	1.46	.269	4.46	105	4.24	111	9.04	-8.9
21	Bob Rush B. Rush	4.07	1949	CHC	35	10	18	.357	27	80	9	1	4	201.0	197	91	104	9	79	0	6	861	6	3.58	3.54	1.01	0.40	9.3	9.2	1.37	.271	4.66	102	3.48	87	8.82	11.3
22	Dutch Leonard D. Leonard	4.15	1949	CHC	33	7	16	.304	28	83	10	1	0	180.0	198	83	94	4	43	7	1	788	7	4.15	2.15	1.93	0.20	10.5	5.5	1.34	.298	4.70	104	2.71	68	9.90	25.6
23	Joe Hatten J. Hatten	4.18	1949	BKN	37	12	8	.600	29	58	11	2	2	187.1	194	87	102	15	69	2	5	792	2	2.79	3.31	0.84	0.72	7.3	8.7	1.40	.276	4.90	101	4.07	99	9.32	0.9
24	Hank Borowy H. Borowy	4.19	1949	PHN	28	12	12	.500	28	43	12	1	0	193.1	188	90	99	19	63	0	0	796	4	2.00	2.93	0.68	0.88	5.4	7.9	1.30	.252	4.61	107	4.32	111	8.75	-9.7
25	Bill Werle B. Werle	4.24	1949	PIT	35	12	13	.480	29	106	10	2	0	221.0	243	104	117	23	51	8	2	945	4	4.32	2.08	2.08	0.94	11.2	5.4	1.33	.291	4.76	100	3.71	88	9.90	12.7