Since September 1, 2025, the Cleveland Guardians have the lowest ERA by a team, with an ERA of 2.61.

	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	Guardians	2.61	27	.741	20	7	259	1	8	241.0	190	70	75	20	57	9	1	959	3	9.67	2.13	4.54	0.75	27.0	5.9	1.02	.277	2.80	7.10
2	Pirates	3.07	24	.417	10	14	225	0	6	214.0	185	73	83	21	77	8	4	890	10	9.46	3.24	2.92	0.88	25.3	8.7	1.22	.293	3.49	7.78
3	Dodgers	3.25	25	.600	15	10	283	0	9	224.1	146	81	84	16	101	8	10	915	14	11.35	4.05	2.80	0.64	30.9	11.0	1.10	.256	3.37	5.86
4	Mariners	3.37	25	.680	17	8	256	0	7	227.0	194	85	92	26	45	12	2	919	7	10.15	1.78	5.69	1.03	27.9	4.9	1.05	.290	3.65	7.69
5	Cubs	3.42	25	.560	14	11	222	0	8	221.0	174	84	90	33	50	9	1	878	5	9.04	2.04	4.44	1.34	25.3	5.7	1.01	.250	3.67	7.09
6	Brewers	3.46	24	.500	12	12	228	0	6	213.1	177	82	94	22	80	14	3	892	4	9.62	3.38	2.85	0.93	25.6	9.0	1.20	.283	3.97	7.47
7	Padres	3.62	25	.560	14	11	254	0	6	224.0	194	90	94	36	86	9	3	938	5	10.21	3.46	2.95	1.45	27.1	9.2	1.25	.286	3.78	7.79
8	Phillies	3.70	25	.680	17	8	215	0	10	224.0	202	92	97	31	67	6	1	927	7	8.64	2.69	3.21	1.25	23.2	7.2	1.20	.281	3.90	8.12
9	Rangers	3.72	24	.417	10	14	203	0	6	217.2	203	90	101	27	57	7	4	899	5	8.39	2.36	3.56	1.12	22.6	6.3	1.19	.291	4.18	8.39
10	Red Sox	3.81	24	.542	13	11	213	0	6	212.1	198	90	100	25	74	6	1	899	13	9.03	3.14	2.88	1.06	23.7	8.2	1.28	.298	4.24	8.39
11	Yankees	3.85	25	.720	18	7	214	0	8	222.0	186	95	100	26	80	8	1	931	12	8.68	3.24	2.68	1.05	23.0	8.6	1.20	.265	4.05	7.54
12	Blue Jays	3.86	25	.600	15	10	214	1	4	221.1	206	95	102	22	83	4	1	938	3	8.70	3.38	2.58	0.89	22.8	8.8	1.31	.299	4.15	8.38
13	Athletics	3.88	24	.542	13	11	188	0	5	211.1	193	91	101	27	81	13	6	901	3	8.01	3.45	2.32	1.15	20.9	9.0	1.30	.280	4.30	8.22
14	Orioles	3.90	25	.560	14	11	226	0	7	223.2	200	97	105	30	84	6	5	931	13	9.09	3.38	2.69	1.21	24.3	9.0	1.27	.291	4.23	8.05
15	Reds	3.97	25	.560	14	11	222	1	9	222.1	187	98	103	35	68	14	2	919	5	8.99	2.75	3.26	1.42	24.2	7.4	1.15	.262	4.17	7.57
16	Astros	4.07	25	.480	12	13	208	0	5	221.1	199	100	108	36	77	2	0	927	3	8.46	3.13	2.70	1.46	22.4	8.3	1.25	.270	4.39	8.09
17	Giants	4.15	25	.520	13	12	207	0	9	221.0	222	102	115	22	75	14	6	952	7	8.43	3.05	2.76	0.90	21.7	7.9	1.34	.315	4.68	9.04
18	Marlins	4.16	25	.560	14	11	215	0	6	227.0	214	105	116	39	73	6	3	967	17	8.52	2.89	2.95	1.55	22.2	7.5	1.26	.276	4.60	8.48
19	Royals	4.20	25	.480	12	13	202	0	6	218.2	194	102	105	31	74	5	1	900	11	8.31	3.05	2.73	1.28	22.4	8.2	1.23	.277	4.32	7.98
20	Rays	4.20	26	.385	10	16	237	0	4	227.0	203	106	119	28	85	13	1	963	10	9.40	3.37	2.79	1.11	24.6	8.8	1.27	.292	4.72	8.05
21	Braves	4.23	25	.560	14	11	241	0	7	225.2	220	106	113	32	73	12	0	957	5	9.61	2.91	3.30	1.28	25.2	7.6	1.30	.314	4.51	8.77
22	Cardinals	4.39	24	.417	10	14	187	0	7	213.1	226	104	118	28	74	8	6	930	7	7.89	3.12	2.53	1.18	20.1	8.0	1.41	.313	4.98	9.53
23	White Sox	4.42	25	.440	11	14	230	0	7	217.2	205	107	114	35	88	3	4	928	14	9.51	3.64	2.61	1.45	24.8	9.5	1.35	.297	4.71	8.48
24	Diamondbacks	4.53	24	.500	12	12	188	0	4	216.1	201	109	122	31	69	5	1	916	4	7.82	2.87	2.72	1.29	20.5	7.5	1.25	.273	5.08	8.36
25	Tigers	4.78	24	.292	7	17	202	0	4	212.2	210	113	120	32	85	7	1	921	8	8.55	3.60	2.38	1.35	21.9	9.2	1.39	.299	5.08	8.89