lowest era by the whole league in a MLB season since 2001

	LEAGUE	ERA	SEASON	G	W%	W	L	GS	SO	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	NL	3.66	2014	2,430	.495	1,202	1,228	2,430	18,853	57	34	645	21815.0	20,633	8,868	9,709	2,035	7,003	820	523	91,773	833	7.78	2.89	2.69	0.84	20.5	7.6	1.27	.295	4.01	8.51
2	NL	3.73	2013	2,430	.498	1,211	1,219	2,430	18,174	60	27	629	21847.1	20,781	9,066	9,819	2,152	7,219	800	566	92,192	832	7.49	2.97	2.52	0.89	19.7	7.8	1.28	.292	4.04	8.56
3	NL	3.81	2011	2,590	.498	1,290	1,300	2,590	18,833	80	36	707	23244.0	22,348	9,843	10,772	2,328	8,069	796	766	98,820	782	7.29	3.12	2.33	0.90	19.1	8.2	1.31	.291	4.17	8.65
4	AL	3.81	2014	2,430	.505	1,228	1,202	2,430	18,588	61	31	619	21798.2	20,962	9,239	10,052	2,151	7,017	832	462	92,156	863	7.67	2.90	2.65	0.89	20.2	7.6	1.28	.296	4.15	8.65
5	AL	3.88	2022	2,430	.501	1,217	1,213	2,430	20,170	17	9	622	21558.2	19,719	9,286	10,215	2,579	7,286	964	243	90,786	833	8.42	3.04	2.77	1.08	22.2	8.0	1.25	.287	4.26	8.23
6	NL	3.90	2015	2,430	.493	1,198	1,232	2,430	19,023	38	21	653	21713.1	21,091	9,420	10,225	2,355	7,112	782	560	91,923	820	7.88	2.95	2.67	0.98	20.7	7.7	1.30	.299	4.24	8.74
7	NL	3.94	2012	2,592	.494	1,280	1,312	2,592	19,715	59	35	671	23070.1	22,355	10,106	11,037	2,481	7,894	759	613	98,206	818	7.69	3.08	2.50	0.97	20.1	8.0	1.31	.295	4.31	8.72
8	AL	3.99	2013	2,432	.502	1,220	1,212	2,432	18,536	64	30	637	21806.0	21,312	9,662	10,436	2,509	7,421	736	452	92,681	904	7.65	3.06	2.50	1.04	20.0	8.0	1.32	.296	4.31	8.80
9	AL	4.01	2015	2,428	.507	1,231	1,197	2,428	18,423	66	30	639	21694.1	21,015	9,655	10,422	2,554	6,961	820	391	91,705	938	7.64	2.89	2.65	1.06	20.1	7.6	1.29	.293	4.32	8.72
10	AL	4.01	2024	2,428	.490	1,190	1,238	2,428	20,660	12	5	606	21539.0	19,510	9,605	10,530	2,759	7,453	1,023	275	90,877	690	8.63	3.11	2.77	1.15	22.7	8.2	1.25	.284	4.40	8.15
11	NL	4.02	2010	2,592	.497	1,288	1,304	2,592	18,956	72	36	636	23088.1	22,608	10,300	11,281	2,395	8,508	823	763	99,046	838	7.39	3.32	2.23	0.93	19.1	8.6	1.35	.296	4.40	8.81
12	NL	4.02	2018	2,432	.503	1,224	1,208	2,432	20,782	14	8	621	21828.1	20,263	9,760	10,555	2,653	8,020	926	610	92,699	833	8.57	3.31	2.59	1.09	22.4	8.7	1.30	.292	4.35	8.35
13	NL	4.05	2022	2,430	.499	1,213	1,217	2,430	20,642	19	7	610	21516.2	19,956	9,677	10,602	2,636	7,567	1,082	232	91,266	774	8.63	3.17	2.73	1.10	22.6	8.3	1.28	.292	4.43	8.35
14	AL	4.08	2011	2,268	.502	1,139	1,129	2,268	15,655	93	39	536	20283.1	19,919	9,189	10,036	2,224	6,949	758	465	86,425	776	6.95	3.08	2.25	0.99	18.1	8.0	1.32	.291	4.45	8.84
15	AL	4.08	2012	2,268	.507	1,150	1,118	2,268	16,711	69	34	590	20285.0	19,708	9,195	9,980	2,453	6,815	735	442	85,973	724	7.41	3.02	2.45	1.09	19.4	7.9	1.31	.291	4.43	8.74
16	AL	4.09	2025	2,430	.503	1,222	1,208	2,430	20,560	15	5	588	21564.1	19,885	9,793	10,663	2,888	7,760	930	309	91,374	702	8.58	3.24	2.65	1.21	22.5	8.5	1.28	.287	4.45	8.30
17	NL	4.11	2002	2,588	.501	1,296	1,290	2,588	17,374	99	44	666	23105.0	22,680	10,539	11,546	2,602	8,956	883	955	99,433	718	6.77	3.49	1.94	1.01	17.5	9.0	1.37	.288	4.50	8.83
18	NL	4.13	2024	2,430	.510	1,239	1,191	2,430	20,537	16	11	619	21577.1	20,313	9,903	10,813	2,694	7,476	997	234	91,572	749	8.57	3.12	2.75	1.12	22.4	8.2	1.29	.294	4.51	8.47
19	AL	4.14	2010	2,268	.504	1,142	1,126	2,268	15,350	93	23	568	20217.0	19,946	9,295	10,027	2,218	7,270	726	453	86,507	836	6.83	3.24	2.11	0.99	17.7	8.4	1.35	.291	4.46	8.88
20	NL	4.16	2016	2,428	.494	1,198	1,228	2,428	19,738	39	21	632	21695.1	20,983	10,035	10,888	2,676	7,808	880	600	92,623	919	8.19	3.24	2.53	1.11	21.3	8.4	1.33	.298	4.52	8.70
21	NL	4.19	2009	2,590	.495	1,283	1,307	2,590	18,205	76	30	645	23098.2	22,806	10,753	11,626	2,548	9,028	853	780	99,649	872	7.09	3.52	2.02	0.99	18.3	9.1	1.38	.294	4.53	8.89
22	NL	4.20	2021	2,428	.493	1,197	1,231	2,428	21,162	29	18	596	21265.2	19,446	9,914	10,869	2,901	8,053	1,123	471	90,781	842	8.96	3.41	2.63	1.23	23.3	8.9	1.29	.288	4.60	8.23
23	AL	4.20	2016	2,428	.506	1,229	1,199	2,428	19,244	44	15	644	21611.0	21,293	10,089	10,856	2,934	7,280	771	332	91,957	889	8.01	3.03	2.64	1.22	20.9	7.9	1.32	.297	4.52	8.87
24	NL	4.22	2025	2,430	.497	1,208	1,222	2,430	20,085	14	8	613	21510.2	20,253	10,076	10,951	2,762	7,619	998	247	91,552	728	8.40	3.19	2.64	1.16	21.9	8.3	1.30	.291	4.58	8.47
25	NL	4.22	2005	2,594	.496	1,286	1,306	2,594	16,830	104	40	666	23052.1	23,280	10,807	11,709	2,616	8,439	954	766	99,505	745	6.57	3.29	1.99	1.02	16.9	8.5	1.38	.292	4.57	9.09