The Chicago Cubs had the lowest ERA by a team in 2016, with an ERA of 3.15.

	TEAM	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	Cubs	3.15	2016	162	.640	103	58	162	1,441	5	2	38	1459.2	1,125	511	556	163	495	63	24	5,933	80	8.88	3.05	2.91	1.01	24.3	8.3	1.11	.255	3.43	6.94
2	Nationals	3.51	2016	162	.586	95	67	162	1,476	1	0	46	1459.2	1,272	570	612	155	468	57	43	6,036	47	9.10	2.89	3.15	0.96	24.5	7.8	1.19	.288	3.77	7.84
3	Mets	3.57	2016	162	.537	87	75	162	1,396	1	1	55	1447.0	1,397	574	617	152	439	35	39	6,067	50	8.68	2.73	3.18	0.95	23.0	7.2	1.27	.308	3.84	8.69
4	Giants	3.65	2016	162	.537	87	75	162	1,309	10	3	43	1460.1	1,334	593	631	158	439	46	30	6,049	40	8.07	2.71	2.98	0.97	21.6	7.3	1.21	.287	3.89	8.22
5	Dodgers	3.70	2016	162	.562	91	71	162	1,510	3	3	47	1453.0	1,266	598	638	165	464	53	51	6,014	58	9.35	2.87	3.25	1.02	25.1	7.7	1.19	.288	3.95	7.84
6	Blue Jays	3.78	2016	162	.549	89	73	162	1,314	0	0	43	1459.1	1,340	613	666	183	461	59	10	6,113	50	8.10	2.84	2.85	1.13	21.5	7.5	1.23	.282	4.11	8.26
7	Indians	3.84	2016	161	.584	94	67	161	1,398	5	3	37	1445.0	1,330	617	676	186	461	34	34	6,033	49	8.71	2.87	3.03	1.16	23.2	7.6	1.24	.289	4.21	8.28
8	Mariners	4.00	2016	162	.531	86	76	162	1,318	2	2	49	1457.0	1,410	647	707	213	460	55	30	6,147	52	8.14	2.84	2.87	1.32	21.4	7.5	1.28	.292	4.37	8.71
9	Red Sox	4.00	2016	162	.574	93	69	162	1,362	9	1	43	1439.2	1,342	640	694	176	490	65	16	6,073	52	8.51	3.06	2.78	1.10	22.4	8.1	1.27	.293	4.34	8.39
10	Marlins	4.05	2016	161	.491	79	82	161	1,379	0	0	55	1435.0	1,358	646	682	152	595	61	62	6,164	66	8.65	3.73	2.32	0.95	22.4	9.7	1.36	.303	4.28	8.52
11	Astros	4.06	2016	162	.519	84	78	162	1,396	2	1	44	1468.0	1,441	663	701	181	453	39	19	6,180	98	8.56	2.78	3.08	1.11	22.6	7.3	1.29	.306	4.30	8.83
12	Cardinals	4.08	2016	162	.531	86	76	162	1,290	2	2	38	1448.1	1,432	656	712	159	475	52	35	6,164	50	8.02	2.95	2.72	0.99	20.9	7.7	1.32	.304	4.42	8.90
13	Brewers	4.08	2016	162	.451	73	89	162	1,175	0	0	46	1434.1	1,450	650	733	178	532	66	33	6,188	48	7.37	3.34	2.21	1.12	19.0	8.6	1.38	.300	4.60	9.10
14	White Sox	4.10	2016	162	.481	78	84	162	1,270	7	1	43	1446.2	1,422	659	715	185	521	68	30	6,196	72	7.90	3.24	2.44	1.15	20.5	8.4	1.34	.298	4.45	8.85
15	Yankees	4.16	2016	162	.519	84	78	162	1,393	0	0	48	1428.1	1,358	660	702	214	444	57	15	6,023	52	8.78	2.80	3.14	1.35	23.1	7.4	1.26	.292	4.42	8.56
16	Rays	4.20	2016	162	.420	68	94	162	1,357	1	1	42	1426.1	1,395	665	713	210	491	32	25	6,076	61	8.56	3.10	2.76	1.33	22.3	8.1	1.32	.297	4.50	8.80
17	Royals	4.21	2016	162	.500	81	81	162	1,287	3	0	41	1440.0	1,433	674	712	206	517	60	8	6,182	55	8.04	3.23	2.49	1.29	20.8	8.4	1.35	.298	4.45	8.96
18	Pirates	4.21	2016	162	.484	78	83	162	1,232	5	1	51	1450.2	1,490	679	758	180	533	68	28	6,292	71	7.64	3.31	2.31	1.12	19.6	8.5	1.39	.306	4.70	9.24
19	Orioles	4.22	2016	162	.549	89	73	162	1,248	1	0	54	1432.0	1,408	671	715	183	545	51	23	6,122	59	7.84	3.43	2.29	1.15	20.4	8.9	1.36	.299	4.49	8.85
20	Tigers	4.24	2016	161	.534	86	75	161	1,232	3	1	47	1428.0	1,417	672	721	182	462	51	25	6,048	44	7.76	2.91	2.67	1.15	20.4	7.6	1.32	.300	4.54	8.93
21	Angels	4.28	2016	162	.457	74	88	162	1,136	4	3	29	1421.1	1,480	676	727	208	498	56	27	6,120	47	7.19	3.15	2.28	1.32	18.6	8.1	1.39	.301	4.60	9.37
22	Rangers	4.37	2016	162	.586	95	67	162	1,154	1	0	56	1443.0	1,441	700	757	201	534	53	16	6,186	45	7.20	3.33	2.16	1.25	18.7	8.6	1.37	.292	4.72	8.99
23	Padres	4.43	2016	162	.420	68	94	162	1,222	1	0	35	1440.0	1,425	708	770	183	569	53	44	6,228	67	7.64	3.56	2.15	1.14	19.6	9.1	1.38	.296	4.81	8.91
24	Braves	4.51	2016	161	.422	68	93	161	1,227	1	1	39	1447.2	1,414	725	779	177	547	70	55	6,250	83	7.63	3.40	2.24	1.10	19.6	8.8	1.35	.293	4.84	8.79
25	Athletics	4.51	2016	162	.426	69	93	162	1,188	2	1	42	1433.1	1,459	718	761	185	464	50	28	6,144	70	7.46	2.91	2.56	1.16	19.3	7.6	1.34	.299	4.78	9.16