The Colorado Rockies have the worst ERA by a team this season, with an ERA of 5.50.

Interpreted as:

teams with the most amount of 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	Rockies	5.50	2025	87	.230	20	67	87	570	0	0	15	762.0	889	466	533	114	298	24	9	3,416	42	6.73	3.52	1.91	1.35	16.7	8.7	1.56	.322	6.30	10.50
2	Athletics	5.33	2025	89	.404	36	53	89	701	0	0	20	788.0	832	467	509	131	333	49	17	3,520	20	8.01	3.80	2.11	1.50	19.9	9.5	1.48	.304	5.81	9.50
3	Nationals	5.09	2025	87	.425	37	50	87	683	0	0	19	767.0	775	434	456	107	293	53	2	3,353	38	8.01	3.44	2.33	1.26	20.4	8.7	1.39	.301	5.35	9.09
4	Orioles	5.01	2025	86	.430	37	49	86	705	0	0	19	754.1	801	420	444	119	280	27	4	3,297	38	8.41	3.34	2.52	1.42	21.4	8.5	1.43	.315	5.30	9.56
5	Marlins	4.75	2025	85	.459	39	46	85	668	0	0	20	758.0	744	400	430	98	285	37	10	3,277	27	7.93	3.38	2.34	1.16	20.4	8.7	1.36	.295	5.11	8.83
6	Diamondbacks	4.73	2025	87	.494	43	44	87	751	0	0	26	776.1	753	408	447	113	286	36	13	3,340	15	8.71	3.32	2.63	1.31	22.5	8.6	1.34	.297	5.18	8.73
7	Angels	4.52	2025	86	.500	43	43	86	683	0	0	21	762.1	771	383	417	109	333	25	31	3,324	30	8.06	3.93	2.05	1.29	20.5	10.0	1.45	.305	4.92	9.10
8	Blue Jays	4.26	2025	87	.563	49	38	87	773	0	0	27	774.2	704	367	392	116	285	43	14	3,277	18	8.98	3.31	2.71	1.35	23.6	8.7	1.28	.285	4.55	8.18
9	Dodgers	4.18	2025	87	.632	55	32	87	763	0	0	28	777.0	713	361	392	107	302	39	17	3,305	37	8.84	3.50	2.53	1.24	23.1	9.1	1.31	.289	4.54	8.26
10	Twins	4.15	2025	87	.471	41	46	87	742	1	0	17	761.0	725	351	377	92	228	41	7	3,230	20	8.78	2.70	3.25	1.09	23.0	7.1	1.25	.298	4.46	8.57
11	White Sox	4.14	2025	86	.326	28	58	86	627	0	0	10	746.0	725	343	378	91	316	51	13	3,256	21	7.56	3.81	1.98	1.10	19.3	9.7	1.40	.292	4.56	8.75
12	Guardians	4.01	2025	85	.471	40	45	85	709	1	0	23	749.0	719	334	361	87	313	30	11	3,226	26	8.52	3.76	2.27	1.05	22.0	9.7	1.38	.303	4.34	8.64
13	Red Sox	4.01	2025	88	.489	43	45	88	738	0	0	23	788.2	743	351	406	87	304	39	12	3,376	20	8.42	3.47	2.43	0.99	21.9	9.0	1.33	.297	4.63	8.48
14	Cardinals	3.94	2025	88	.534	47	41	88	640	2	2	21	781.2	741	342	371	73	240	24	10	3,283	30	7.37	2.76	2.67	0.84	19.5	7.3	1.26	.290	4.27	8.53
15	Reds	3.93	2025	87	.517	45	42	87	696	2	1	21	769.2	681	336	369	105	269	37	8	3,242	24	8.14	3.15	2.59	1.23	21.5	8.3	1.23	.270	4.31	7.96
16	Mariners	3.90	2025	86	.523	45	41	86	706	0	0	21	781.1	727	339	377	105	268	37	18	3,306	26	8.13	3.09	2.63	1.21	21.4	8.1	1.27	.284	4.34	8.37
17	Brewers	3.79	2025	87	.552	48	39	87	738	0	0	22	772.1	691	325	353	92	299	32	14	3,273	20	8.60	3.48	2.47	1.07	22.5	9.1	1.28	.284	4.11	8.05
18	Cubs	3.78	2025	87	.598	52	35	87	650	0	0	21	777.2	723	327	355	103	238	30	7	3,236	17	7.52	2.75	2.73	1.19	20.1	7.4	1.24	.280	4.11	8.37
19	Braves	3.76	2025	86	.453	39	47	86	787	1	0	12	759.1	664	317	339	93	278	35	10	3,174	23	9.33	3.29	2.83	1.10	24.8	8.8	1.24	.288	4.02	7.87
20	Rays	3.74	2025	87	.552	48	39	87	723	1	0	20	779.1	690	324	347	115	238	36	6	3,210	14	8.35	2.75	3.04	1.33	22.5	7.4	1.19	.274	4.01	7.97
21	Yankees	3.72	2025	87	.552	48	39	87	788	0	0	23	769.2	636	318	345	89	292	28	6	3,215	26	9.21	3.41	2.70	1.04	24.5	9.1	1.21	.271	4.03	7.44
22	Phillies	3.71	2025	87	.586	51	36	87	801	0	0	26	776.0	725	320	347	89	255	25	6	3,268	24	9.29	2.96	3.14	1.03	24.5	7.8	1.26	.303	4.02	8.41
23	Padres	3.68	2025	86	.535	46	40	86	746	2	2	29	759.0	656	310	341	86	282	33	9	3,194	25	8.85	3.34	2.65	1.02	23.4	8.8	1.24	.278	4.04	7.78
24	Pirates	3.64	2025	88	.432	38	50	88	652	1	0	18	780.1	671	316	339	73	263	32	11	3,232	24	7.52	3.03	2.48	0.84	20.2	8.1	1.20	.270	3.91	7.74
25	Tigers	3.56	2025	88	.614	54	34	88	746	1	1	24	781.1	689	309	347	91	254	36	7	3,254	25	8.59	2.93	2.94	1.05	22.9	7.8	1.21	.281	4.00	7.94