Luke Weaver has the best ERA by an active pitcher this season, with an ERA of 0.00.

Interpreted as:

current MLB pitchers with lowest era with a minimum of 0.5 IP per team game 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	Luke Weaver L. Weaver	0.00	2025	NYY	11	0	0		0	13	0	0	2	13.0	3	0	0	0	5	0	4	1	47	0	9.00	3.46	2.60	0.00	27.7	10.6	0.62	.103	0.00	0	2.19	53	2.08	2.7
2	Tyler Rogers T. Rogers	0.63	2025	SFG	15	2	0	1.000	0	13	0	0	0	14.1	8	1	1	1	2	0	1	0	52	0	8.16	1.26	6.50	0.63	25.0	3.8	0.70	.194	0.63	16	2.54	68	5.02	2
3	Jason Adam J. Adam	0.64	2025	SDP	13	2	0	1.000	0	18	0	0	0	14.0	7	1	2	0	7	1	1	0	57	1	11.57	4.50	2.57	0.00	31.6	12.3	1.00	.226	1.29	17	2.17	56	4.50	2.7
4	Josh Hader J. Hader	0.69	2025	HOU	11	1	0	1.000	0	17	0	0	7	13.0	6	1	1	0	3	0	10	0	48	0	11.77	2.08	5.67	0.00	35.4	6.3	0.69	.214	0.69	18	1.11	28	4.15	4.1
5	Jose Quintana J. Quintana	0.96	2025	MIL	3	3	0	1.000	3	9	0	0	0	18.2	14	2	2	1	5	0	0	0	70	0	4.34	2.41	1.80	0.48	12.9	7.1	1.02	.236	0.96	24	3.57	90	6.75	0.8
6	Colin Rea C. Rea	0.96	2025	CHC	6	1	0	1.000	3	19	0	0	1	18.2	17	2	2	0	3	0	3	0	76	0	9.16	1.45	6.33	0.00	25.0	3.9	1.07	.315	0.96	25	1.48	38	8.20	5
7	Yoshinobu Yamamoto Y. Yamamoto	1.06	2025	LAD	6	3	2	.600	6	43	0	0	0	34.0	23	4	7	2	11	0	0	0	132	1	11.38	2.91	3.91	0.53	32.6	8.3	1.00	.276	1.85	27	2.24	56	6.09	6.6
8	Jake Bird J. Bird	1.08	2025	COL	11	0	0		0	23	0	0	0	16.2	10	2	2	0	10	1	2	0	69	1	12.42	5.40	2.30	0.00	33.3	14.5	1.20	.286	1.08	24	2.25	55	5.40	3.3
9	Tylor Megill T. Megill	1.09	2025	NYM	5	3	2	.600	5	30	0	0	0	24.2	20	3	7	0	11	2	0	0	108	1	10.95	4.01	2.73	0.00	27.8	10.2	1.26	.308	2.55	28	2.18	56	7.30	4.7
10	Tyler Mahle T. Mahle	1.14	2025	TEX	6	3	0	1.000	6	26	0	0	0	31.2	18	4	4	0	13	0	0	0	122	0	7.39	3.69	2.00	0.00	21.3	10.7	0.98	.217	1.14	29	2.62	64	5.12	5
11	Hunter Brown H. Brown	1.16	2025	HOU	5	3	1	.750	5	31	0	0	0	31.0	17	4	5	1	6	0	0	0	110	0	9.00	1.74	5.17	0.29	28.2	5.5	0.74	.222	1.45	30	2.03	51	4.94	6.7
12	Mike Vasil M. Vasil	1.17	2025	CWS	7	0	1	.000	0	10	0	0	0	15.1	8	2	3	1	8	2	4	2	64	0	5.87	4.70	1.25	0.59	15.6	12.5	1.04	.163	1.76	30	4.53	110	4.70	-0.7
13	Nick Pivetta N. Pivetta	1.20	2025	SDP	5	4	1	.800	5	30	0	0	0	30.0	16	4	4	1	7	0	0	0	111	0	9.00	2.10	4.29	0.30	27.0	6.3	0.77	.205	1.20	31	2.16	56	4.80	5.8
14	Kodai Senga K. Senga	1.26	2025	NYM	5	3	1	.750	5	25	0	0	0	28.2	21	4	6	1	9	1	0	0	111	1	7.85	2.83	2.78	0.31	22.5	8.1	1.05	.267	1.88	32	2.79	72	6.59	3.5
15	Lake Bachar L. Bachar	1.29	2025	MIA	11	1	0	1.000	0	15	0	0	0	14.0	3	2	3	1	8	1	2	2	52	0	9.64	5.14	1.88	0.64	28.8	15.4	0.79	.074	1.93	31	3.75	95	1.93	0.3
16	Cade Smith C. Smith	1.29	2025	CLE	14	0	0		0	17	0	0	3	14.0	10	2	4	0	5	1	3	1	58	0	10.93	3.21	3.40	0.00	29.3	8.6	1.07	.286	2.57	34	1.89	48	6.43	3.2
17	Jeff Hoffman J. Hoffman	1.35	2025	TOR	12	2	0	1.000	0	19	0	0	6	13.1	8	2	2	1	1	0	11	1	48	0	12.83	0.68	19.00	0.68	39.6	2.1	0.68	.259	1.35	35	1.38	35	5.40	3.9
18	Joey Cantillo J. Cantillo	1.35	2025	CLE	10	0	0		0	17	0	0	1	13.1	12	2	6	1	7	0	5	0	58	0	11.48	4.72	2.43	0.68	29.3	12.1	1.43	.333	4.05	35	3.03	77	8.10	1.4
19	Ronny Henriquez R. Henriquez	1.38	2025	MIA	10	1	0	1.000	0	15	0	0	0	13.0	9	2	3	1	9	1	1	1	58	0	10.38	6.23	1.67	0.69	25.9	15.5	1.38	.250	2.08	34	4.03	103	6.23	-0.2
20	Mitchell Parker M. Parker	1.39	2025	WSH	5	3	1	.750	5	20	0	0	0	32.1	19	5	6	1	11	2	0	0	128	1	5.57	3.06	1.82	0.28	15.6	8.6	0.93	.191	1.67	35	3.40	86	5.29	2
21	Max Fried M. Fried	1.42	2025	NYY	5	4	0	1.000	5	30	0	0	0	31.2	25	5	9	2	7	3	0	0	132	0	8.53	1.99	4.29	0.57	22.7	5.3	1.01	.256	2.56	37	2.90	71	7.11	4.2
22	Kris Bubic K. Bubic	1.45	2025	KCR	5	2	1	.667	5	33	0	0	0	31.0	24	5	7	1	9	2	0	1	127	0	9.58	2.61	3.67	0.29	26.0	7.1	1.06	.280	2.03	36	2.39	60	6.97	5.5
23	Kyle Leahy K. Leahy	1.62	2025	STL	14	0	0		0	16	0	0	0	16.2	5	3	3	2	4	1	1	0	59	0	8.64	2.16	4.00	1.08	27.1	6.8	0.54	.083	1.62	41	3.57	93	2.70	0.5
24	Huascar Brazobán H. Brazobán	1.65	2025	NYM	12	1	0	1.000	1	15	0	0	1	16.1	11	3	3	2	4	1	2	0	62	0	8.27	2.20	3.75	1.10	24.2	6.5	0.92	.225	1.65	43	3.70	95	6.06	0.3
25	Andrew Heaney A. Heaney	1.72	2025	PIT	5	2	1	.667	5	31	0	0	0	31.1	18	6	6	1	6	2	0	0	118	0	8.90	1.72	5.17	0.29	26.3	5.1	0.77	.218	1.72	42	2.23	57	5.17	5.9