The Seattle Mariners have the lowest ERA by a team this season, with an ERA of 3.51.

	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	Mariners	3.51	2024	142	.507	72	70	142	1,231	0	0	29	1253.1	1,036	489	536	160	324	47	15	5,082	32	8.84	2.33	3.80	1.15	24.2	6.4	1.09	.264	3.85	7.44
2	Braves	3.54	2024	141	.546	77	64	141	1,349	2	1	37	1255.1	1,124	494	534	130	397	60	15	5,217	31	9.67	2.85	3.40	0.93	25.9	7.6	1.21	.303	3.83	8.06
3	Brewers	3.60	2024	141	.574	81	60	141	1,167	0	0	45	1259.0	1,113	503	551	171	429	56	22	5,276	36	8.34	3.07	2.72	1.22	22.1	8.1	1.22	.273	3.94	7.96
4	Astros	3.68	2024	142	.542	77	65	142	1,297	2	1	35	1259.0	1,069	515	562	157	498	53	2	5,286	44	9.27	3.56	2.60	1.12	24.5	9.4	1.24	.278	4.02	7.64
5	Phillies	3.69	2024	142	.599	85	57	142	1,263	5	4	34	1270.1	1,155	521	573	157	378	53	8	5,291	45	8.95	2.68	3.34	1.11	23.9	7.1	1.21	.290	4.06	8.18
6	Tigers	3.71	2024	143	.503	72	71	143	1,196	0	0	35	1275.0	1,136	525	585	142	373	51	11	5,290	39	8.44	2.63	3.21	1.00	22.6	7.1	1.18	.282	4.13	8.02
7	Cubs	3.76	2024	142	.507	72	70	142	1,204	1	0	31	1255.0	1,130	524	589	151	423	46	6	5,287	36	8.63	3.03	2.85	1.08	22.8	8.0	1.24	.283	4.22	8.10
8	Guardians	3.79	2024	141	.574	81	60	141	1,215	0	0	47	1250.0	1,082	526	560	166	434	52	11	5,195	41	8.75	3.12	2.80	1.20	23.4	8.4	1.21	.275	4.03	7.79
9	Yankees	3.83	2024	142	.577	82	60	142	1,256	0	0	37	1269.2	1,127	540	596	159	468	79	6	5,384	34	8.90	3.32	2.68	1.13	23.3	8.7	1.26	.283	4.22	7.99
10	Dodgers	3.88	2024	141	.596	84	57	141	1,204	1	1	45	1259.2	1,106	543	592	177	427	52	18	5,256	58	8.60	3.05	2.82	1.26	22.9	8.1	1.22	.274	4.23	7.90
11	Royals	3.91	2024	142	.542	77	65	142	1,142	2	0	35	1248.1	1,168	542	582	132	409	63	17	5,274	34	8.23	2.95	2.79	0.95	21.7	7.8	1.26	.294	4.20	8.42
12	Orioles	3.91	2024	143	.573	82	61	143	1,207	0	0	43	1273.2	1,155	554	615	149	422	51	9	5,369	40	8.53	2.98	2.86	1.05	22.5	7.9	1.24	.284	4.35	8.16
13	Rays	3.91	2024	142	.493	70	72	142	1,218	0	0	43	1269.0	1,157	552	609	183	401	57	14	5,334	23	8.64	2.84	3.04	1.30	22.8	7.5	1.23	.280	4.32	8.21
14	Padres	3.98	2024	143	.566	81	62	143	1,291	1	1	36	1269.1	1,167	562	607	150	413	55	14	5,339	54	9.15	2.93	3.13	1.06	24.2	7.7	1.24	.297	4.30	8.27
15	Mets	3.99	2024	142	.549	78	64	142	1,263	1	1	35	1267.2	1,091	562	620	151	526	86	6	5,374	56	8.97	3.73	2.40	1.07	23.5	9.8	1.28	.281	4.40	7.75
16	Reds	4.13	2024	143	.476	68	75	143	1,219	0	0	30	1263.0	1,151	580	623	172	435	84	12	5,373	41	8.69	3.10	2.80	1.23	22.7	8.1	1.26	.283	4.44	8.20
17	Pirates	4.15	2024	141	.468	66	75	141	1,167	1	0	34	1255.2	1,210	579	646	150	442	76	14	5,377	35	8.36	3.17	2.64	1.08	21.7	8.2	1.32	.299	4.63	8.67
18	Red Sox	4.16	2024	141	.504	71	70	141	1,191	1	1	35	1263.2	1,192	584	670	172	391	67	24	5,355	46	8.48	2.78	3.05	1.23	22.2	7.3	1.25	.289	4.77	8.49
19	Cardinals	4.17	2024	141	.504	71	70	141	1,127	0	0	45	1257.2	1,191	583	645	158	401	37	13	5,278	40	8.06	2.87	2.81	1.13	21.4	7.6	1.27	.291	4.62	8.52
20	Twins	4.19	2024	141	.539	76	65	141	1,275	1	0	39	1248.2	1,124	581	624	162	360	58	9	5,231	41	9.19	2.59	3.54	1.17	24.4	6.9	1.19	.285	4.50	8.10
21	Giants	4.21	2024	142	.486	69	73	142	1,265	2	2	29	1254.0	1,173	587	628	142	457	65	9	5,326	42	9.08	3.28	2.77	1.02	23.8	8.6	1.30	.304	4.51	8.42
22	Rangers	4.27	2024	142	.479	68	74	142	1,197	0	0	30	1254.0	1,142	595	637	172	469	59	25	5,333	47	8.59	3.37	2.55	1.23	22.4	8.8	1.28	.282	4.57	8.20
23	Athletics	4.32	2024	143	.434	62	81	143	1,125	1	1	30	1267.1	1,197	608	669	145	475	83	29	5,416	55	7.99	3.37	2.37	1.03	20.8	8.8	1.32	.293	4.75	8.50
24	Nationals	4.32	2024	141	.447	63	78	141	1,145	0	0	34	1249.2	1,258	600	668	145	417	37	10	5,342	55	8.25	3.00	2.75	1.04	21.4	7.8	1.34	.309	4.81	9.06
25	Blue Jays	4.36	2024	142	.472	67	75	142	1,165	3	1	35	1248.1	1,163	605	656	191	435	62	22	5,302	24	8.40	3.14	2.68	1.38	22.0	8.2	1.28	.282	4.73	8.38