The Texas Rangers have the lowest ERA by a team this season, with an ERA of 3.45.

Interpreted as:

era rankings MLB teams 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	Rangers	3.45	2025	159	.503	80	79	159	1,316	2	1	37	1416.1	1,213	543	590	168	454	48	23	5,831	43	8.36	2.88	2.90	1.07	22.6	7.8	1.18	.272	3.75	7.71
2	Brewers	3.61	2025	159	.604	96	63	159	1,402	0	0	44	1415.0	1,213	568	622	165	523	65	20	5,926	33	8.92	3.33	2.68	1.05	23.7	8.8	1.23	.278	3.96	7.72
3	Padres	3.64	2025	159	.547	87	72	159	1,392	2	2	48	1406.0	1,173	569	612	174	519	64	22	5,865	38	8.91	3.32	2.68	1.11	23.7	8.8	1.20	.269	3.92	7.51
4	Guardians	3.68	2025	159	.541	86	73	159	1,351	2	1	47	1414.0	1,266	578	632	166	524	51	19	5,937	43	8.60	3.34	2.58	1.06	22.8	8.8	1.27	.286	4.02	8.06
5	Red Sox	3.72	2025	159	.547	87	72	159	1,329	2	1	44	1421.1	1,308	588	668	163	519	73	17	6,038	53	8.42	3.29	2.56	1.03	22.0	8.6	1.29	.290	4.23	8.28
6	Royals	3.75	2025	159	.503	80	79	159	1,241	0	0	46	1410.0	1,287	588	629	170	468	44	17	5,888	52	7.92	2.99	2.65	1.09	21.1	7.9	1.24	.282	4.01	8.21
7	Pirates	3.79	2025	159	.434	69	90	159	1,286	1	0	35	1404.2	1,248	591	637	150	464	73	18	5,879	44	8.24	2.97	2.77	0.96	21.9	7.9	1.22	.281	4.08	8.00
8	Phillies	3.82	2025	159	.591	94	65	159	1,433	2	0	46	1412.1	1,322	600	641	173	429	52	9	5,919	36	9.13	2.73	3.34	1.10	24.2	7.2	1.24	.300	4.08	8.42
9	Cubs	3.84	2025	159	.560	89	70	159	1,228	0	0	43	1408.0	1,266	601	645	200	399	53	9	5,801	29	7.85	2.55	3.08	1.28	21.2	6.9	1.18	.272	4.12	8.09
10	Mariners	3.86	2025	159	.566	90	69	159	1,396	0	0	43	1435.2	1,310	615	680	187	446	73	26	6,025	52	8.75	2.80	3.13	1.17	23.2	7.4	1.22	.286	4.26	8.21
11	Rays	3.87	2025	159	.484	77	82	159	1,389	1	0	35	1407.1	1,244	605	661	199	464	67	11	5,852	33	8.88	2.97	2.99	1.27	23.7	7.9	1.21	.280	4.23	7.96
12	Reds	3.88	2025	159	.509	81	78	159	1,352	4	3	39	1409.0	1,243	607	672	188	482	63	13	5,924	45	8.64	3.08	2.80	1.20	22.8	8.1	1.22	.275	4.29	7.94
13	Giants	3.88	2025	159	.491	78	81	159	1,324	1	0	38	1406.2	1,336	606	678	139	501	68	18	5,993	50	8.47	3.21	2.64	0.89	22.1	8.4	1.31	.302	4.34	8.55
14	Astros	3.89	2025	159	.535	85	74	159	1,480	3	0	45	1416.0	1,240	612	658	196	498	58	7	5,939	38	9.41	3.17	2.97	1.25	24.9	8.4	1.23	.282	4.18	7.88
15	Yankees	3.94	2025	159	.572	91	68	159	1,409	0	0	42	1412.2	1,224	618	678	170	546	55	12	5,971	53	8.98	3.48	2.58	1.08	23.6	9.1	1.25	.278	4.32	7.80
16	Tigers	3.96	2025	159	.541	86	73	159	1,345	1	1	39	1411.0	1,285	621	682	185	479	59	14	5,930	50	8.58	3.06	2.81	1.18	22.7	8.1	1.25	.285	4.35	8.20
17	Dodgers	4.00	2025	159	.566	90	69	159	1,464	0	0	43	1414.0	1,229	628	677	174	555	63	31	5,965	69	9.32	3.53	2.64	1.11	24.5	9.3	1.26	.284	4.31	7.82
18	Mets	4.04	2025	159	.516	82	77	159	1,370	1	1	40	1407.0	1,318	631	705	148	549	76	6	6,049	61	8.76	3.51	2.50	0.95	22.6	9.1	1.33	.300	4.51	8.43
19	Blue Jays	4.22	2025	159	.572	91	68	159	1,396	2	1	41	1411.0	1,291	662	714	206	504	72	25	5,975	31	8.90	3.21	2.77	1.31	23.4	8.4	1.27	.286	4.55	8.23
20	Cardinals	4.23	2025	159	.491	78	81	159	1,185	2	2	42	1408.0	1,406	662	733	161	453	47	16	6,013	50	7.57	2.90	2.62	1.03	19.7	7.5	1.32	.299	4.69	8.99
21	White Sox	4.25	2025	159	.365	58	101	159	1,250	0	0	24	1390.0	1,313	657	727	180	590	72	29	6,019	47	8.09	3.82	2.12	1.17	20.8	9.8	1.37	.289	4.71	8.50
22	Braves	4.36	2025	159	.472	75	84	159	1,391	1	0	33	1411.0	1,318	683	721	193	520	69	20	5,999	39	8.87	3.32	2.68	1.23	23.2	8.7	1.30	.294	4.60	8.41
23	Diamondbacks	4.43	2025	159	.503	80	79	159	1,264	0	0	42	1420.0	1,373	699	761	191	489	56	20	6,068	31	8.01	3.10	2.58	1.21	20.8	8.1	1.31	.291	4.82	8.70
24	Orioles	4.57	2025	159	.472	75	84	159	1,325	1	0	38	1408.2	1,411	716	771	209	512	47	19	6,063	63	8.47	3.27	2.59	1.34	21.9	8.4	1.37	.303	4.93	9.01
25	Twins	4.62	2025	159	.434	69	90	159	1,336	1	0	28	1400.0	1,394	718	768	192	455	69	19	6,015	47	8.59	2.93	2.94	1.23	22.2	7.6	1.32	.303	4.94	8.96