Huascar Brazobán has the best ERA by an active pitcher this season, with an ERA of 0.90.

Interpreted as:

best era with a minimum of 0.5 IP per team game for an active 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	Huascar Brazobán H. Brazobán	0.90	2025	NYM	22	3	0	1.000	2	30	0	0	1	30.0	15	3	4	2	8	3	3	0	112	0	9.00	2.40	3.75	0.60	26.8	7.1	0.77	.188	1.20	23	3.04	77	4.50	3.1
2	Kyle Leahy K. Leahy	1.29	2025	STL	21	1	1	.500	0	22	0	0	0	28.0	13	4	4	2	7	1	2	0	102	0	7.07	2.25	3.14	0.64	21.6	6.9	0.71	.157	1.29	32	3.29	84	4.18	2
3	Max Fried M. Fried	1.29	2025	NYY	10	6	0	1.000	10	60	0	0	0	62.2	43	9	14	3	15	4	0	0	251	3	8.62	2.15	4.00	0.43	23.9	6.0	0.93	.237	2.01	33	2.69	64	6.18	10.3
4	Kodai Senga K. Senga	1.43	2025	NYM	9	4	3	.571	9	47	0	0	0	50.1	38	8	11	1	22	1	0	0	204	4	8.40	3.93	2.14	0.18	23.0	10.8	1.19	.278	1.97	36	2.83	72	6.79	6.4
5	Kris Bubic K. Bubic	1.47	2025	KCR	10	5	2	.714	10	61	0	0	0	61.1	47	10	12	3	18	2	0	1	244	0	8.95	2.64	3.39	0.44	25.0	7.4	1.06	.275	1.76	35	2.70	66	6.90	9.4
6	Tyler Mahle T. Mahle	1.47	2025	TEX	10	5	1	.833	10	40	0	0	0	55.0	36	9	9	2	18	0	0	0	213	0	6.55	2.95	2.22	0.33	18.8	8.5	0.98	.222	1.47	37	3.07	74	5.89	6.6
7	Nathan Eovaldi N. Eovaldi	1.61	2025	TEX	10	4	2	.667	10	65	1	1	0	61.1	39	11	13	3	8	4	0	0	232	4	9.54	1.17	8.13	0.44	28.0	3.4	0.77	.237	1.91	41	2.18	52	5.72	13.3
8	Steven Matz S. Matz	1.74	2025	STL	13	2	1	.667	2	25	0	0	1	31.0	25	6	7	0	3	1	1	0	121	1	7.26	0.87	8.33	0.00	20.7	2.5	0.90	.272	2.03	43	1.85	47	7.26	7.3
9	Brent Suter B. Suter	1.75	2025	CIN	16	1	0	1.000	2	14	0	0	0	25.2	20	5	6	2	4	1	7	0	102	0	4.91	1.40	3.50	0.70	13.7	3.9	0.94	.222	2.10	40	3.58	84	7.01	1.8
10	Andrew Abbott A. Abbott	1.80	2025	CIN	7	3	0	1.000	7	43	0	0	0	35.0	24	7	8	3	15	1	0	0	142	3	11.06	3.86	2.87	0.77	30.3	10.6	1.11	.263	2.06	41	3.10	73	6.17	4.3
11	Jake Bird J. Bird	1.86	2025	COL	19	1	1	.500	0	35	0	0	0	29.0	22	6	7	1	14	1	3	0	120	2	10.86	4.34	2.50	0.31	29.2	11.7	1.24	.304	2.17	40	2.66	63	6.83	4.8
12	Yoshinobu Yamamoto Y. Yamamoto	1.86	2025	LAD	10	5	3	.625	10	68	0	0	0	58.0	35	12	15	5	18	1	0	0	223	2	10.55	2.79	3.78	0.78	30.5	8.1	0.91	.229	2.33	46	2.83	69	5.43	8
13	Hayden Birdsong H. Birdsong	1.91	2025	SFG	12	2	0	1.000	1	29	0	0	0	28.1	25	6	11	4	10	2	2	0	120	2	9.21	3.18	2.90	1.27	24.2	8.3	1.24	.280	3.49	48	4.13	108	7.94	-1
14	Jesús Luzardo J. Luzardo	1.95	2025	PHI	10	5	0	1.000	10	67	0	0	0	60.0	51	13	16	2	18	1	0	0	242	1	10.05	2.70	3.72	0.30	27.7	7.4	1.15	.318	2.40	47	2.22	54	7.65	12.2
15	Garrett Crochet G. Crochet	1.98	2025	BOS	11	4	3	.571	11	78	0	0	0	68.1	51	15	18	5	22	0	0	0	272	0	10.27	2.90	3.55	0.66	28.7	8.1	1.07	.275	2.37	47	2.71	66	6.72	10.6
16	Hunter Brown H. Brown	2.04	2025	HOU	10	6	3	.667	10	71	1	0	0	61.2	40	14	15	5	16	0	0	0	232	0	10.36	2.34	4.44	0.73	30.6	6.9	0.91	.250	2.19	52	2.60	64	5.84	9.9
17	Brant Hurter B. Hurter	2.08	2025	DET	14	1	0	1.000	1	23	0	0	2	26.0	18	6	6	3	6	2	3	1	99	0	7.96	2.08	3.83	1.04	23.2	6.1	0.92	.231	2.08	53	3.73	92	6.23	0.9
18	Jacob deGrom J. deGrom	2.33	2025	TEX	10	4	1	.800	10	62	0	0	0	58.0	42	15	15	8	12	1	0	0	224	1	9.62	1.86	5.17	1.24	27.7	5.4	0.93	.241	2.33	59	3.40	82	6.52	4.8
19	AJ Smith-Shawver	2.33	2025	ATL	7	3	2	.600	7	40	0	0	0	38.2	31	10	11	3	17	1	0	0	161	3	9.31	3.96	2.35	0.70	24.8	10.6	1.24	.280	2.56	56	3.41	87	7.22	2.2
20	Shane Smith S. Smith	2.36	2025	CWS	10	1	3	.250	10	49	0	0	0	53.1	41	14	21	3	18	6	0	0	223	5	8.27	3.04	2.72	0.51	22.0	8.1	1.11	.259	3.54	59	3.32	79	6.92	5.2
21	Hunter Greene H. Greene	2.36	2025	CIN	8	4	2	.667	8	61	0	0	0	45.2	29	12	12	7	8	2	0	0	176	2	12.02	1.58	7.63	1.38	34.7	4.5	0.81	.224	2.36	54	3.05	72	5.72	5.8
22	Logan Gilbert L. Gilbert	2.37	2025	SEA	6	1	1	.500	6	44	0	0	0	30.1	18	8	8	3	6	1	0	0	117	2	13.05	1.78	7.33	0.89	37.6	5.1	0.79	.238	2.37	64	2.15	55	5.34	6.1
23	Colin Rea C. Rea	2.38	2025	CHC	10	3	0	1.000	7	32	0	0	1	41.2	39	11	12	4	11	0	3	0	168	0	6.91	2.38	2.91	0.86	19.0	6.5	1.20	.289	2.59	59	3.58	91	8.42	1.6
24	Pablo López P. López	2.40	2025	MIN	8	4	2	.667	8	49	0	0	0	45.0	33	12	15	3	9	1	0	0	177	0	9.80	1.80	5.44	0.60	27.7	5.1	0.93	.261	3.00	61	2.43	60	6.60	8.3
25	Paul Skenes P. Skenes	2.44	2025	PIT	10	3	5	.375	10	62	1	0	0	62.2	43	17	19	4	16	1	0	0	243	1	8.90	2.30	3.88	0.57	25.5	6.6	0.94	.244	2.73	58	2.74	68	6.18	8.8