Nathan Eovaldi had the lowest ERA by an active pitcher this season, with an ERA of 1.73.

Interpreted as:

best current with a minimum of 0.5 IP per team game pitcher this regular season

	NAME	ERA	SEASON	TM	G	W	L	W%	GS	SO	CG	SHO	SV	IP	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	Nathan Eovaldi N. Eovaldi	1.73	2025	TEX	22	11	3	.786	22	129	1	1	0	130.0	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
2	Trevor Rogers T. Rogers	1.81	2025	BAL	18	9	3	.750	18	103	1	0	0	109.2	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
3	Paul Skenes P. Skenes	1.97	2025	PIT	32	10	10	.500	32	216	1	0	0	187.2	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
4	Tyler Mahle T. Mahle	2.18	2025	TEX	16	6	4	.600	16	66	0	0	0	86.2	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
5	Tarik Skubal T. Skubal	2.21	2025	DET	31	13	6	.684	31	241	1	1	0	195.1	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
6	Hunter Brown H. Brown	2.43	2025	HOU	31	12	9	.571	31	206	1	0	0	185.1	133	50	55	17	57	7	0	1	729	0	10.00	2.77	3.61	0.83	28.3	7.8	1.03	.262	2.67	60	3.13	76	6.46	20.6
7	Jimmy Herget J. Herget	2.48	2025	COL	59	1	2	.333	0	81	0	0	0	83.1	72	23	24	6	26	7	9	1	347	2	8.75	2.81	3.12	0.65	23.3	7.5	1.18	.291	2.59	52	3.31	76	7.78	9.2
8	Yoshinobu Yamamoto Y. Yamamoto	2.49	2025	LAD	30	12	8	.600	30	201	0	0	0	173.2	113	48	53	14	59	3	0	0	684	5	10.42	3.06	3.41	0.73	29.4	8.6	0.99	.243	2.75	60	2.93	70	5.86	24.4
9	Cristopher Sánchez C. Sánchez	2.50	2025	PHI	32	13	5	.722	32	212	1	0	0	202.0	171	56	58	12	44	6	0	0	807	6	9.45	1.96	4.82	0.53	26.3	5.5	1.06	.298	2.58	59	2.54	60	7.62	36.9
10	Mike Vasil M. Vasil	2.50	2025	CWS	47	5	3	.625	3	82	0	0	4	101.0	74	28	32	8	52	8	17	5	423	4	7.31	4.63	1.58	0.71	19.4	12.3	1.25	.242	2.85	60	4.32	100	6.59	-0.1
11	Kris Bubic K. Bubic	2.55	2025	KCR	20	8	7	.533	20	116	0	0	0	116.1	98	33	38	6	39	3	0	1	476	1	8.97	3.02	2.97	0.46	24.4	8.2	1.18	.295	2.94	59	2.89	69	7.58	16.6
12	Chris Sale C. Sale	2.58	2025	ATL	21	7	5	.583	20	165	0	0	0	125.2	102	36	38	11	32	11	0	0	510	3	11.82	2.29	5.16	0.79	32.4	6.3	1.07	.313	2.72	61	2.67	66	7.31	19.6
13	Garrett Crochet G. Crochet	2.59	2025	BOS	32	18	5	.783	32	255	1	1	0	205.1	165	59	62	24	46	3	0	0	814	7	11.18	2.02	5.54	1.05	31.3	5.7	1.03	.290	2.72	60	2.88	68	7.23	30.2
14	Cade Horton C. Horton	2.67	2025	CHC	23	11	4	.733	22	97	0	0	0	118.0	95	35	40	10	33	6	0	0	476	1	7.40	2.52	2.94	0.76	20.4	6.9	1.08	.258	3.05	65	3.58	88	7.25	6.2
15	Freddy Peralta F. Peralta	2.70	2025	MIL	33	17	6	.739	33	204	0	0	0	176.2	124	53	54	21	66	9	0	0	723	4	10.39	3.36	3.09	1.07	28.2	9.1	1.08	.243	2.75	64	3.64	87	6.32	10.5
16	Zack Wheeler Z. Wheeler	2.71	2025	PHI	24	10	5	.667	24	195	1	0	0	149.2	107	45	48	19	33	8	0	0	585	2	11.73	1.98	5.91	1.14	33.3	5.6	0.94	.267	2.89	64	2.99	71	6.43	20
17	Sean Newcomb S. Newcomb	2.73	2025	TOT	48	2	5	.286	5	91	0	0	2	92.1	94	28	36	5	31	5	11	2	391	2	8.87	3.02	2.94	0.49	23.3	7.9	1.35	.344	3.51	64	3.03	72	9.16	11.9
18	Hunter Greene H. Greene	2.76	2025	CIN	19	7	4	.636	19	132	1	1	0	107.2	75	33	35	15	26	2	0	0	420	5	11.03	2.17	5.08	1.25	31.4	6.2	0.94	.245	2.93	62	3.27	75	6.27	12.8
19	Drew Rasmussen D. Rasmussen	2.76	2025	TBR	31	10	5	.667	31	127	0	0	0	150.0	116	46	47	18	37	5	0	1	585	3	7.62	2.22	3.43	1.08	21.7	6.3	1.02	.246	2.82	70	3.83	95	6.96	3.4
20	Jacob Latz J. Latz	2.84	2025	TEX	33	2	0	1.000	8	76	0	0	1	85.2	69	27	28	7	37	0	5	2	348	2	7.98	3.89	2.05	0.74	21.8	10.6	1.24	.272	2.94	69	3.71	87	7.25	5.1
21	Max Fried M. Fried	2.86	2025	NYY	32	19	5	.792	32	189	0	0	0	195.1	164	62	73	14	51	10	0	0	801	8	8.71	2.35	3.71	0.65	23.6	6.4	1.10	.279	3.36	70	3.06	71	7.56	26.2
22	Andrew Abbott A. Abbott	2.87	2025	CIN	29	10	7	.588	29	149	1	1	0	166.1	148	53	60	19	43	3	0	0	684	4	8.06	2.33	3.47	1.03	21.8	6.3	1.15	.274	3.25	64	3.65	83	8.01	13.1
23	Nick Pivetta N. Pivetta	2.87	2025	SDP	31	13	5	.722	31	190	0	0	0	181.2	129	58	63	22	50	3	0	1	721	1	9.41	2.48	3.80	1.09	26.4	6.9	0.99	.235	3.12	71	3.49	85	6.39	12.2
24	Jacob deGrom J. deGrom	2.97	2025	TEX	30	12	8	.600	30	185	0	0	0	172.2	122	57	57	26	37	3	0	0	669	3	9.64	1.93	5.00	1.36	27.7	5.5	0.92	.230	2.97	73	3.64	86	6.36	11.7
25	Noah Cameron N. Cameron	2.99	2025	KCR	24	9	7	.563	24	114	0	0	0	138.1	109	46	46	18	43	3	0	1	556	3	7.42	2.80	2.65	1.17	20.5	7.7	1.10	.241	2.99	70	4.17	100	7.09	0