Since June 4, 2025, the Milwaukee Brewers have the lowest ERA by a team, with an ERA of 3.35.

	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	Brewers	3.35	100	.640	64	36	927	0	30	893.2	737	333	372	102	309	45	8	3,697	19	9.34	3.11	3.00	1.03	25.1	8.4	1.17	.274	3.75	7.42
2	Guardians	3.50	103	.544	56	47	873	1	29	922.1	792	359	395	103	308	38	15	3,820	23	8.52	3.01	2.83	1.01	22.9	8.1	1.19	.276	3.85	7.73
3	Red Sox	3.56	99	.606	60	39	838	1	32	882.0	788	349	395	103	325	45	9	3,727	39	8.55	3.32	2.58	1.05	22.5	8.7	1.26	.284	4.03	8.04
4	Pirates	3.65	101	.485	49	52	870	0	24	889.2	789	361	390	103	282	48	9	3,719	29	8.80	2.85	3.09	1.04	23.4	7.6	1.20	.284	3.95	7.98
5	Rangers	3.67	101	.515	52	49	873	0	20	911.2	799	372	399	120	289	33	20	3,766	20	8.62	2.85	3.02	1.18	23.2	7.7	1.19	.277	3.94	7.89
6	Phillies	3.68	102	.578	59	43	893	0	27	900.2	822	368	386	115	248	34	3	3,729	20	8.92	2.48	3.60	1.15	23.9	6.7	1.19	.290	3.86	8.21
7	Padres	3.70	103	.534	55	48	908	0	27	907.0	755	373	393	117	345	42	16	3,791	25	9.01	3.42	2.63	1.16	24.0	9.1	1.21	.268	3.90	7.49
8	Cubs	3.80	102	.529	54	48	788	0	29	896.1	790	378	402	135	228	34	4	3,653	16	7.91	2.29	3.46	1.36	21.6	6.2	1.14	.265	4.04	7.93
9	Dodgers	3.86	101	.554	56	45	949	0	28	895.0	755	384	411	97	349	42	21	3,767	43	9.54	3.51	2.72	0.98	25.2	9.3	1.23	.282	4.13	7.59
10	Mariners	3.86	103	.563	58	45	956	0	25	925.0	795	397	434	129	273	51	14	3,832	40	9.30	2.66	3.50	1.26	24.9	7.1	1.15	.275	4.22	7.74
11	Reds	3.96	100	.530	53	47	886	3	24	887.0	792	390	433	122	307	43	8	3,750	24	8.99	3.11	2.89	1.24	23.6	8.2	1.24	.280	4.39	8.04
12	Athletics	3.98	100	.530	53	47	833	0	21	888.1	781	393	434	128	324	46	17	3,730	17	8.44	3.28	2.57	1.30	22.3	8.7	1.24	.272	4.40	7.91
13	Astros	4.02	102	.529	54	48	935	0	28	913.2	830	408	441	140	322	38	5	3,860	23	9.21	3.17	2.90	1.38	24.2	8.3	1.26	.285	4.34	8.18
14	Royals	4.06	101	.495	50	51	775	0	27	892.1	831	403	429	113	307	29	9	3,754	29	7.82	3.10	2.52	1.14	20.6	8.2	1.28	.284	4.33	8.38
15	Yankees	4.10	103	.553	57	46	884	0	25	918.2	822	418	462	119	358	45	10	3,917	33	8.66	3.51	2.47	1.17	22.6	9.1	1.28	.280	4.53	8.05
16	Rays	4.24	102	.451	46	56	952	0	21	895.0	812	422	467	127	315	44	8	3,778	26	9.57	3.17	3.02	1.28	25.2	8.3	1.26	.293	4.70	8.17
17	Blue Jays	4.25	102	.618	63	39	883	1	24	902.1	836	426	460	125	342	45	18	3,857	16	8.81	3.41	2.58	1.25	22.9	8.9	1.31	.289	4.59	8.34
18	Orioles	4.27	103	.505	52	51	887	0	26	916.1	885	435	472	128	322	30	16	3,901	39	8.71	3.16	2.75	1.26	22.7	8.3	1.32	.299	4.64	8.69
19	Giants	4.30	101	.475	48	53	829	0	24	895.2	893	428	474	102	322	48	12	3,870	31	8.33	3.24	2.57	1.02	21.4	8.3	1.36	.308	4.76	8.97
20	White Sox	4.31	101	.406	41	60	844	0	20	892.1	842	427	475	123	369	33	20	3,838	34	8.51	3.72	2.29	1.24	22.0	9.6	1.36	.291	4.79	8.49
21	Marlins	4.32	103	.544	56	47	826	0	29	918.1	840	441	478	127	287	49	9	3,877	47	8.10	2.81	2.88	1.24	21.3	7.4	1.23	.276	4.68	8.23
22	Diamondbacks	4.34	102	.500	51	51	781	0	24	909.1	892	439	476	121	301	29	11	3,876	20	7.73	2.98	2.59	1.20	20.1	7.8	1.31	.292	4.71	8.83
23	Tigers	4.41	100	.470	47	53	845	0	21	885.1	845	434	472	129	308	31	9	3,759	37	8.59	3.13	2.74	1.31	22.5	8.2	1.30	.293	4.80	8.59
24	Cardinals	4.52	102	.441	45	57	778	1	25	901.1	939	453	501	123	294	29	11	3,890	35	7.77	2.94	2.65	1.23	20.0	7.6	1.37	.306	5.00	9.38
25	Braves	4.71	103	.476	49	54	902	0	24	917.0	892	480	503	130	338	46	10	3,938	23	8.85	3.32	2.67	1.28	22.9	8.6	1.34	.302	4.94	8.75