lowest era by a pitcher this season with over 40 innings pitched

Aroldis Chapman had the lowest ERA with more than 40.0 innings pitched in 2025, with an ERA of 1.17.

	NAME	ERA	IP	SEASON	TM	G	W	L	W%	GS	SO	CG	SHO	SV	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Aroldis Chapman A. Chapman	1.17	61.1	2025	BOS	67	5	3	.625	0	85	0	0	32	28	8	9	3	15	0	43	0	228	6	12.47	2.20	5.67	0.44	37.3	6.6	0.70	.200	1.32	27	1.73	41	4.11	16.8
2	Cole Winn C. Winn	1.51	41.2	2025	TEX	33	0	1	.000	0	35	0	0	0	23	7	8	3	17	4	10	2	162	1	7.56	3.67	2.06	0.65	21.6	10.5	0.96	.194	1.73	37	3.90	92	4.97	1.7
3	Edwin Díaz E. Díaz	1.63	66.1	2025	NYM	62	6	3	.667	0	98	0	0	28	37	12	14	4	21	8	48	0	258	7	13.30	2.85	4.67	0.54	38.0	8.1	0.87	.260	1.90	40	2.27	55	5.02	13.5
4	Abner Uribe A. Uribe	1.67	75.1	2025	MIL	75	3	2	.600	0	90	0	0	7	51	14	18	4	27	6	15	2	298	5	10.75	3.23	3.33	0.48	30.2	9.1	1.04	.275	2.15	40	2.74	66	6.09	11.9
5	Nathan Eovaldi N. Eovaldi	1.73	130.0	2025	TEX	22	11	3	.786	22	129	1	1	0	90	25	28	10	21	7	0	1	496	6	8.93	1.45	6.14	0.69	26.0	4.2	0.85	.243	1.94	42	2.79	66	6.23	20.8
6	Andrés Muñoz A. Muñoz	1.73	62.1	2025	SEA	64	3	3	.500	0	83	0	0	38	36	12	18	2	28	4	47	3	254	7	11.98	4.04	2.96	0.29	32.7	11.0	1.03	.248	2.60	45	2.42	60	5.20	11.3
7	Randy Rodríguez R. Rodríguez	1.78	50.2	2025	SFG	50	3	5	.375	0	67	0	0	4	34	10	12	4	11	4	15	0	198	2	11.90	1.95	6.09	0.71	33.8	5.6	0.89	.268	2.13	43	2.40	60	6.04	9.1
8	Trevor Rogers T. Rogers	1.81	109.2	2025	BAL	18	9	3	.750	18	103	1	0	0	70	22	23	6	29	2	0	0	423	0	8.45	2.38	3.55	0.49	24.3	6.9	0.90	.226	1.89	45	2.81	69	5.74	15.8
9	Jason Adam J. Adam	1.93	65.1	2025	SDP	65	8	4	.667	0	70	0	0	0	50	14	18	4	25	3	4	3	270	3	9.64	3.44	2.80	0.55	25.9	9.3	1.15	.274	2.48	48	3.07	75	6.89	7.5
10	Matt Svanson M. Svanson	1.94	60.1	2025	STL	39	4	0	1.000	0	68	0	0	0	33	13	14	3	20	4	10	0	234	1	10.14	2.98	3.40	0.45	29.1	8.5	0.88	.216	2.09	47	2.71	67	4.92	9.1
11	Paul Skenes P. Skenes	1.97	187.2	2025	PIT	32	10	10	.500	32	216	1	0	0	136	41	45	11	42	6	0	0	733	2	10.36	2.01	5.14	0.53	29.5	5.7	0.95	.273	2.16	46	2.36	57	6.52	37
12	Tyler Rogers T. Rogers	1.98	77.1	2025	TOT	81	4	6	.400	0	48	0	0	0	66	17	20	4	7	1	13	0	299	0	5.59	0.81	6.86	0.47	16.1	2.3	0.94	.259	2.33	49	2.87	71	7.68	10
13	Josh Hader J. Hader	2.05	52.2	2025	HOU	48	6	2	.750	0	76	0	0	28	29	12	16	8	16	2	41	1	206	2	12.99	2.73	4.75	1.37	36.9	7.8	0.85	.202	2.73	51	3.24	79	4.96	5.2
14	Jhoan Duran J. Duran	2.06	70.0	2025	TOT	72	7	6	.538	0	80	0	0	32	58	16	19	3	19	3	55	4	287	3	10.29	2.44	4.21	0.39	27.9	6.6	1.10	.302	2.44	50	2.34	56	7.46	14.2
15	Riley O'Brien R. O'Brien	2.06	48.0	2025	STL	42	3	1	.750	0	45	0	0	6	33	11	13	2	22	7	15	2	199	3	8.44	4.13	2.05	0.38	22.6	11.1	1.15	.252	2.44	50	3.61	89	6.19	2.4
16	Nolan McLean N. McLean	2.06	48.0	2025	NYM	8	5	1	.833	8	57	0	0	0	34	11	13	4	16	2	0	0	188	2	10.69	3.00	3.56	0.75	30.3	8.5	1.04	.275	2.44	51	2.96	72	6.38	6.1
17	JoJo Romero J. Romero	2.07	61.0	2025	STL	65	4	6	.400	0	55	0	0	8	47	14	21	2	29	2	16	5	255	2	8.11	4.28	1.90	0.30	21.6	11.4	1.25	.269	3.10	50	3.28	81	6.93	5.3
18	Brad Keller B. Keller	2.07	69.2	2025	CHC	68	4	2	.667	1	75	0	0	3	45	16	18	4	22	6	12	0	276	1	9.69	2.84	3.41	0.52	27.2	8.0	0.96	.243	2.33	51	2.93	72	5.81	8.8
19	Adrian Morejon A. Morejon	2.08	73.2	2025	SDP	75	13	6	.684	0	70	0	0	3	49	17	23	2	17	0	9	3	286	2	8.55	2.08	4.12	0.24	24.5	5.9	0.90	.239	2.81	51	2.27	56	5.99	15
20	Anthony Bender A. Bender	2.16	50.0	2025	MIA	51	3	5	.375	0	42	0	0	4	32	12	13	3	21	2	12	2	204	1	7.56	3.78	2.00	0.54	20.6	10.3	1.06	.213	2.34	50	3.61	87	5.76	2.9
21	Aaron Ashby A. Ashby	2.16	66.2	2025	MIL	43	5	2	.714	1	76	0	0	3	54	16	16	3	24	4	9	0	270	6	10.26	3.24	3.17	0.41	28.1	8.9	1.17	.313	2.16	51	2.69	65	7.29	10.9
22	Drew Pomeranz D. Pomeranz	2.17	49.2	2025	CHC	57	2	2	.500	4	57	0	0	1	38	12	14	5	15	5	11	1	203	1	10.33	2.72	3.80	0.91	28.1	7.4	1.07	.273	2.54	53	3.35	83	6.89	3.9
23	Dennis Santana D. Santana	2.18	70.1	2025	PIT	70	4	5	.444	0	60	0	0	16	44	17	18	5	17	3	34	0	270	0	7.68	2.18	3.53	0.64	22.2	6.3	0.87	.211	2.30	51	3.20	77	5.63	7.3
24	Tyler Mahle T. Mahle	2.18	86.2	2025	TEX	16	6	4	.600	16	66	0	0	0	69	21	21	5	29	0	0	0	346	0	6.85	3.01	2.28	0.52	19.1	8.4	1.13	.260	2.18	53	3.36	79	7.17	8.5
25	Tarik Skubal T. Skubal	2.21	195.1	2025	DET	31	13	6	.684	31	241	1	1	0	141	48	55	18	33	5	0	0	748	3	11.10	1.52	7.30	0.83	32.2	4.4	0.89	.273	2.53	55	2.44	59	6.50	36.9