The Miami Marlins have the highest ERA by a team this season, with an ERA of 5.86.

Interpreted as:

What teams have the highest era this regular season?

	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	Marlins	5.86	2025	36	.389	14	22	36	286	0	0	5	322.1	348	210	222	50	159	15	6	1,457	11	7.99	4.44	1.80	1.40	19.6	10.9	1.57	.315	6.20	9.72
2	Orioles	5.50	2025	36	.361	13	23	36	258	0	0	6	311.0	351	190	203	56	124	12	2	1,385	18	7.47	3.59	2.08	1.62	18.6	9.0	1.53	.316	5.87	10.16
3	Rockies	5.47	2025	37	.162	6	31	37	249	0	0	5	321.0	375	195	224	42	128	11	4	1,436	18	6.98	3.59	1.95	1.18	17.3	8.9	1.57	.331	6.28	10.51
4	Nationals	5.37	2025	38	.447	17	21	38	304	0	0	12	331.2	339	198	205	39	141	25	1	1,470	23	8.25	3.83	2.16	1.06	20.7	9.6	1.45	.312	5.56	9.20
5	Angels	5.33	2025	36	.417	15	21	36	262	0	0	9	314.0	338	186	196	53	136	11	9	1,383	15	7.51	3.90	1.93	1.52	18.9	9.8	1.51	.309	5.62	9.69
6	Athletics	4.46	2025	38	.526	20	18	38	306	0	0	12	340.2	333	169	189	39	148	17	4	1,500	5	8.08	3.91	2.07	1.03	20.4	9.9	1.41	.297	4.99	8.80
7	Diamondbacks	4.43	2025	38	.526	20	18	38	329	0	0	12	341.0	314	168	186	51	126	17	3	1,456	9	8.68	3.33	2.61	1.35	22.6	8.7	1.29	.282	4.91	8.29
8	Blue Jays	4.38	2025	37	.459	17	20	37	346	0	0	11	330.2	299	161	171	55	118	20	6	1,396	13	9.42	3.21	2.93	1.50	24.8	8.5	1.26	.285	4.65	8.14
9	Pirates	4.31	2025	38	.316	12	26	38	283	0	0	7	338.1	313	162	175	36	119	16	6	1,429	12	7.53	3.17	2.38	0.96	19.8	8.3	1.28	.284	4.66	8.33
10	Guardians	4.31	2025	37	.595	22	15	37	304	0	0	13	326.0	326	156	171	42	141	10	2	1,418	15	8.39	3.89	2.16	1.16	21.4	9.9	1.43	.308	4.72	9.00
11	Brewers	4.27	2025	38	.500	19	19	38	300	0	0	6	333.0	298	158	172	45	145	13	6	1,429	8	8.11	3.92	2.07	1.22	21.0	10.1	1.33	.273	4.65	8.05
12	White Sox	4.25	2025	38	.263	10	28	38	274	0	0	1	324.1	309	153	167	41	144	25	5	1,419	10	7.60	4.00	1.90	1.14	19.3	10.1	1.40	.287	4.63	8.57
13	Cardinals	4.08	2025	38	.500	19	19	38	266	0	0	9	337.2	306	153	167	29	120	12	5	1,422	10	7.09	3.20	2.22	0.77	18.7	8.4	1.26	.278	4.45	8.16
14	Braves	4.00	2025	37	.486	18	19	37	323	0	0	7	326.1	281	145	150	45	127	11	8	1,366	15	8.91	3.50	2.54	1.24	23.6	9.3	1.25	.274	4.14	7.75
15	Cubs	3.95	2025	38	.579	22	16	38	298	0	0	8	342.0	318	150	165	37	129	13	5	1,457	8	7.84	3.39	2.31	0.97	20.5	8.9	1.31	.287	4.34	8.37
16	Red Sox	3.91	2025	39	.513	20	19	39	322	0	0	9	347.2	332	151	172	36	120	19	4	1,483	7	8.34	3.11	2.68	0.93	21.7	8.1	1.30	.300	4.45	8.59
17	Phillies	3.87	2025	37	.595	22	15	37	366	0	0	11	332.2	317	143	161	37	108	14	3	1,411	13	9.90	2.92	3.39	1.00	25.9	7.7	1.28	.316	4.36	8.58
18	Rays	3.80	2025	37	.432	16	21	37	290	0	0	10	333.2	295	141	150	50	107	14	3	1,373	5	7.82	2.89	2.71	1.35	21.1	7.8	1.20	.269	4.05	7.96
19	Mariners	3.75	2025	36	.611	22	14	36	294	0	0	14	328.2	308	137	154	32	122	9	9	1,397	9	8.05	3.34	2.41	0.88	21.0	8.7	1.31	.294	4.22	8.43
20	Dodgers	3.72	2025	38	.658	25	13	38	357	0	0	15	336.0	292	139	155	39	136	10	4	1,410	19	9.56	3.64	2.63	1.04	25.3	9.6	1.27	.291	4.15	7.82
21	Yankees	3.59	2025	37	.568	21	16	37	336	0	0	10	326.0	247	130	145	32	143	8	1	1,362	8	9.28	3.95	2.35	0.88	24.7	10.5	1.20	.255	4.00	6.82
22	Reds	3.58	2025	39	.487	19	20	39	330	0	0	11	347.0	273	138	156	47	117	14	3	1,432	14	8.56	3.03	2.82	1.22	23.0	8.2	1.12	.245	4.05	7.08
23	Rangers	3.51	2025	38	.474	18	20	38	295	1	1	11	331.0	289	129	143	32	98	14	3	1,363	16	8.02	2.66	3.01	0.87	21.6	7.2	1.17	.278	3.89	7.86
24	Twins	3.42	2025	38	.474	18	20	38	338	0	0	7	329.1	301	125	137	37	95	18	3	1,384	5	9.24	2.60	3.56	1.01	24.4	6.9	1.20	.295	3.74	8.23
25	Giants	3.39	2025	38	.632	24	14	38	329	0	0	12	334.1	286	126	144	28	123	12	3	1,392	9	8.86	3.31	2.67	0.75	23.6	8.8	1.22	.287	3.88	7.70