6 pitchers are tied for the lowest ERA with more than 0 runs allowed this season, with an ERA of 0.00. The first three are Drew Pomeranz, Connor Phillips and Ian Seymour.

Interpreted as:

top pitchers with inner runs allow this regular season

	NAME	ERA	R	SEASON	TM	G	W	L	W%	GS	SO	CG	SHO	SV	IP	H	ER	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	Drew Pomeranz D. Pomeranz	0.00	1	2025	CHC	24	2	1	.667	2	20	0	0	1	21.2	13	0	0	6	3	6	1	83	0	8.31	2.49	3.33	0.00	24.1	7.2	0.88	.241	0.42	0	2.47	63	5.40	3.6
2	Connor Phillips C. Phillips	0.00	1	2025	CIN	3	1	0	1.000	0	2	0	0	0	3.0	2	0	0	2	0	2	0	13	1	6.00	6.00	1.00	0.00	15.4	15.4	1.33	.222	3.00	0	3.73	88	6.00	0.2
3	Ian Seymour I. Seymour	0.00	1	2025	TBR	1	1	0	1.000	0	2	0	0	0	2.0	0	0	0	2	0	1	1	9	0	9.00	9.00	1.00	0.00	22.2	22.2	1.00	.000	4.50	0	4.07	103	0.00	0
4	Joe Boyle J. Boyle	0.00	2	2025	TBR	1	1	0	1.000	1	7	0	0	0	5.0	0	0	0	2	1	0	0	18	0	12.60	3.60	3.50	0.00	38.9	11.1	0.40	.000	3.60	0	2.07	53	0.00	1.1
5	Sam Aldegheri S. Aldegheri	0.00	2	2025	LAA	1	0	0		0	2	0	0	0	2.1	1	0	0	1	1	0	0	10	0	7.71	3.86	2.00	0.00	20.0	10.0	0.86	.167	7.71	0	3.92	94	3.86	0.1
6	Sauryn Lao S. Lao	0.00	1	2025	SEA	1	0	0		0	3	0	0	0	1.2	3	0	0	0	0	1	0	8	0	16.20	0.00		0.00	37.5	0.0	1.80	.600	5.40	0	-0.53	-14	16.20	0.9
7	Chris Flexen C. Flexen	0.75	3	2025	CHC	14	4	0	1.000	0	13	0	0	1	24.0	14	2	1	7	0	9	0	89	2	4.88	2.63	1.86	0.38	14.6	7.9	0.88	.191	1.13	19	3.40	86	5.25	1.4
8	Randy Rodríguez R. Rodríguez	0.77	5	2025	SFG	34	3	1	.750	0	51	0	0	1	35.0	20	3	1	6	1	8	0	130	1	13.11	1.54	8.50	0.26	39.2	4.6	0.74	.268	1.29	19	1.12	29	5.14	11
9	Justin Lawrence J. Lawrence	0.79	1	2025	PIT	11	1	0	1.000	0	15	0	0	0	11.1	5	1	0	6	2	3	1	44	1	11.91	4.76	2.50	0.00	34.1	13.6	0.97	.238	0.79	19	2.54	63	3.97	1.9
10	Danny Coulombe D. Coulombe	0.83	2	2025	MIN	27	1	0	1.000	1	24	0	0	2	21.2	14	2	0	5	0	7	0	83	1	9.97	2.08	4.80	0.00	28.9	6.0	0.88	.259	0.83	21	1.54	38	5.82	6
11	Erik Miller E. Miller	0.99	3	2025	SFG	33	4	0	1.000	0	19	0	0	0	27.1	20	3	0	20	3	2	4	117	1	6.26	6.59	0.95	0.00	16.2	17.1	1.46	.267	0.99	25	4.20	109	6.59	-1.1
12	Jacob Misiorowski J. Misiorowski	1.13	2	2025	MIL	3	3	0	1.000	3	19	0	0	0	16.0	3	2	1	7	0	0	0	56	0	10.69	3.94	2.71	0.56	33.9	12.5	0.63	.069	1.13	28	2.82	69	1.69	2.2
13	Aaron Ashby A. Ashby	1.15	2	2025	MIL	8	0	0		0	18	0	0	1	15.2	13	2	1	2	1	6	0	59	3	10.34	1.15	9.00	0.57	30.5	3.4	0.96	.324	1.15	28	2.17	54	7.47	3.3
14	Andrés Muñoz A. Muñoz	1.21	6	2025	SEA	30	3	0	1.000	0	40	0	0	18	29.2	14	4	1	10	1	21	2	114	2	12.13	3.03	4.00	0.30	35.1	8.8	0.81	.210	1.82	32	1.92	49	4.25	6.7
15	Braxton Ashcraft B. Ashcraft	1.23	2	2025	PIT	8	1	0	1.000	1	12	0	0	0	14.2	10	2	0	6	0	4	1	59	0	7.36	3.68	2.00	0.00	20.3	10.2	1.09	.244	1.23	29	2.66	66	6.14	2.2
16	Shawn Dubin S. Dubin	1.33	3	2025	HOU	18	2	0	1.000	0	18	0	0	0	20.1	16	3	2	7	1	1	0	81	0	7.97	3.10	2.57	0.89	22.2	8.6	1.13	.264	1.33	34	3.75	94	7.08	0.6
17	Tommy Kahnle T. Kahnle	1.35	6	2025	DET	32	0	0		0	29	0	0	8	33.1	16	5	3	9	1	10	0	124	1	7.83	2.43	3.22	0.81	23.4	7.3	0.75	.159	1.62	34	3.40	85	4.32	2.3
18	Connor Seabold C. Seabold	1.35	1	2025	TBR	3	0	0		0	5	0	0	0	6.2	7	1	0	3	0	3	0	29	0	6.75	4.05	1.67	0.00	17.2	10.3	1.50	.333	1.35	35	2.92	74	9.45	0.8
19	Andre Granillo A. Granillo	1.35	1	2025	STL	5	1	0	1.000	0	2	0	0	1	6.2	3	1	0	1	0	2	0	24	1	2.70	1.35	2.00	0.00	8.3	4.2	0.60	.143	1.35	34	2.92	74	4.05	0.8
20	Cristian Mena C. Mena	1.35	1	2025	AZ	3	1	0	1.000	0	8	0	0	0	6.2	3	1	1	3	0	0	0	26	1	10.80	4.05	2.67	1.35	30.8	11.5	0.90	.143	1.35	33	3.97	102	4.05	-0.1
21	Aroldis Chapman A. Chapman	1.36	6	2025	BOS	36	3	2	.600	0	48	0	0	14	33.0	17	5	2	10	0	20	0	126	1	13.09	2.73	4.80	0.55	38.1	7.9	0.82	.227	1.64	32	1.85	45	4.64	8.2
22	Gavin Hollowell G. Hollowell	1.42	1	2025	CHC	5	0	0		0	5	0	0	0	6.1	6	1	1	2	0	2	0	26	0	7.11	2.84	2.50	1.42	19.2	7.7	1.26	.278	1.42	36	4.49	114	8.53	-0.4
23	Kodai Senga K. Senga	1.47	15	2025	NYM	13	7	3	.700	13	70	0	0	0	73.2	51	12	4	31	1	0	0	293	4	8.55	3.79	2.26	0.49	23.9	10.6	1.11	.251	1.83	37	3.17	80	6.23	6.6
24	Justin Hagenman J. Hagenman	1.50	1	2025	NYM	2	0	0		0	5	0	0	0	6.0	5	1	0	0	0	1	0	23	0	7.50	0.00		0.00	21.7	0.0	0.83	.278	1.50	38	1.40	35	7.50	1.7
25	Sam Bachman S. Bachman	1.50	1	2025	LAA	5	1	0	1.000	0	6	0	0	0	6.0	2	1	0	1	0	1	0	20	0	9.00	1.50	6.00	0.00	30.0	5.0	0.50	.154	1.50	37	1.57	37	3.00	1.7