Since July 19, 2025, the Colorado Rockies have the highest ERA by a team, with an ERA of 6.60.

	TEAM	ERA	G	W%	W	L	SO	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	Rockies	6.60	65	.308	20	45	453	0	11	560.1	674	411	428	120	221	44	7	2,556	16	7.28	3.55	2.05	1.93	17.7	8.6	1.60	.322	6.87	10.83
2	Nationals	5.53	65	.431	28	37	499	0	18	571.0	614	351	373	95	243	29	2	2,545	27	7.87	3.83	2.05	1.50	19.6	9.5	1.50	.309	5.88	9.68
3	Angels	5.26	65	.369	24	41	522	0	15	569.1	556	333	352	98	246	24	10	2,490	30	8.25	3.89	2.12	1.55	21.0	9.9	1.41	.286	5.56	8.79
4	Twins	5.22	65	.354	23	42	552	0	9	575.2	595	334	357	94	207	28	11	2,508	23	8.63	3.24	2.67	1.47	22.0	8.3	1.39	.308	5.58	9.30
5	Braves	5.06	66	.500	33	33	525	0	20	588.1	603	331	345	88	218	32	7	2,561	12	8.03	3.33	2.41	1.35	20.5	8.5	1.40	.303	5.28	9.22
6	Mets	4.69	64	.438	28	36	550	0	12	562.2	562	293	326	62	201	40	1	2,452	26	8.80	3.22	2.74	0.99	22.4	8.2	1.36	.313	5.21	8.99
7	Marlins	4.60	66	.515	34	32	534	0	18	588.1	544	301	328	93	201	29	7	2,512	35	8.17	3.07	2.66	1.42	21.3	8.0	1.27	.273	5.02	8.32
8	Cardinals	4.52	64	.422	27	37	497	0	18	563.1	595	283	320	78	193	22	7	2,452	17	7.94	3.08	2.58	1.25	20.3	7.9	1.40	.311	5.11	9.51
9	White Sox	4.49	64	.422	27	37	586	0	13	563.1	521	281	311	83	239	18	14	2,422	22	9.36	3.82	2.45	1.33	24.2	9.9	1.35	.293	4.97	8.32
10	Tigers	4.36	64	.438	28	36	546	0	13	565.0	528	274	294	82	200	20	4	2,395	24	8.70	3.19	2.73	1.31	22.8	8.4	1.29	.288	4.68	8.41
11	Giants	4.31	64	.453	29	35	528	0	15	566.0	572	271	298	59	200	37	8	2,451	20	8.40	3.18	2.64	0.94	21.5	8.2	1.36	.315	4.74	9.10
12	Blue Jays	4.29	65	.585	38	27	564	1	14	576.1	533	275	298	83	203	22	7	2,444	13	8.81	3.17	2.78	1.30	23.1	8.3	1.28	.286	4.65	8.32
13	Diamondbacks	4.28	64	.500	32	32	461	0	15	572.1	555	272	294	69	184	14	5	2,436	15	7.25	2.89	2.51	1.09	18.9	7.6	1.29	.285	4.62	8.73
14	Rays	4.25	64	.406	26	38	609	0	14	559.2	506	264	294	78	197	25	5	2,361	18	9.79	3.17	3.09	1.25	25.8	8.3	1.26	.295	4.73	8.14
15	Astros	4.20	65	.477	31	34	565	0	15	580.1	536	271	297	88	225	22	1	2,479	14	8.76	3.49	2.51	1.36	22.8	9.1	1.31	.284	4.61	8.31
16	Royals	4.06	64	.547	35	29	468	0	19	565.1	536	255	273	70	192	18	5	2,376	18	7.45	3.06	2.44	1.11	19.7	8.1	1.29	.286	4.35	8.53
17	Orioles	4.05	66	.485	32	34	560	0	15	587.1	543	264	294	81	215	17	11	2,480	22	8.58	3.29	2.60	1.24	22.6	8.7	1.29	.287	4.51	8.32
18	Yankees	3.97	65	.631	41	24	575	0	18	582.0	518	257	288	70	234	24	6	2,488	25	8.89	3.62	2.46	1.08	23.1	9.4	1.29	.283	4.45	8.01
19	Phillies	3.96	65	.631	41	24	581	0	20	578.0	543	254	267	79	153	24	2	2,403	11	9.05	2.38	3.80	1.23	24.2	6.4	1.20	.296	4.16	8.46
20	Mariners	3.89	65	.585	38	27	619	0	20	583.2	528	252	274	78	153	32	6	2,426	25	9.54	2.36	4.05	1.20	25.5	6.3	1.17	.291	4.23	8.14
21	Athletics	3.87	63	.556	35	28	527	0	12	558.2	477	240	258	74	208	24	7	2,327	8	8.49	3.35	2.53	1.19	22.6	8.9	1.23	.270	4.16	7.68
22	Rangers	3.82	64	.500	32	32	563	0	11	572.2	495	243	259	83	189	25	6	2,374	12	8.85	2.97	2.98	1.30	23.7	8.0	1.19	.272	4.07	7.78
23	Reds	3.82	64	.500	32	32	588	2	18	568.1	492	241	267	75	190	28	5	2,381	19	9.31	3.01	3.09	1.19	24.7	8.0	1.20	.278	4.23	7.79
24	Cubs	3.77	65	.523	34	31	539	0	20	570.1	484	239	255	85	144	20	2	2,315	11	8.51	2.27	3.74	1.34	23.3	6.2	1.10	.261	4.02	7.64
25	Pirates	3.71	64	.500	32	32	588	0	17	568.0	508	234	256	59	188	37	6	2,394	18	9.32	2.98	3.13	0.93	24.6	7.9	1.23	.295	4.06	8.05