pitcher with the lowest era with a minimum of 20 innings pitched in a season

4 pitchers are tied for the lowest ERA with 20.0+ innings pitched in a season, with an ERA of 0.00. The first three are J.P. Feyereisen in 2022, Tyler Olson in 2017 and Earl Moore in 1908.

	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	J.P. Feyereisen	0.00	24.1	2022	TBR	22	4	0	1.000	2	25	0	0	1	7	0	1	0	5	0	3	0	86	0	9.25	1.85	5.00	0.00	29.1	5.8	0.49	.125	0.37	0	1.67	44	2.59	5.9
2	Tyler Olson T. Olson	0.00	20.0	2017	CLE	30	1	0	1.000	0	18	0	0	1	13	0	0	0	6	1	4	0	77	0	8.10	2.70	3.00	0.00	23.4	7.8	0.95	.250	0.00	0	2.40	55	5.85	4.4
3	Earl Moore E. Moore	0.00	26.0	1908	PHN	3	2	1	.667	3	16	3	1	0	20	0	4	0	8	2	0		102	1	5.54	2.77	2.00	0.00	15.7	7.8	1.08	.263	1.38	0	2.02	83	6.92	1.2
4	Harry Coveleski H. Coveleski	0.00	20.0	1907	PHN	4	1	0	1.000	0	6	0	0	0	10	0	2	0	3	1	4		72	0	2.70	1.35	2.00	0.00	8.3	4.2	0.65	.161	0.90	0	2.18	83	4.50	1
5	Devin Williams D. Williams	0.33	27.0	2020	MIL	22	4	1	.800	0	53	0	0	0	8	1	4	1	9	1	1	0	100	3	17.67	3.00	5.89	0.33	53.0	9.0	0.63	.194	1.33	7	0.85	19	2.67	10.8
6	Joba Chamberlain J. Chamberlain	0.38	24.0	2007	NYY	19	2	0	1.000	0	34	0	0	1	12	1	2	1	6	1	3	0	91	1	12.75	2.25	5.67	0.38	37.4	6.6	0.75	.224	0.75	8	1.81	41	4.50	7
7	Buck O'Brien B. O'Brien	0.38	47.2	1911	BSA	6	5	1	.833	5	31	5	2	0	30	2	9	0	21	1	1		189	0	5.85	3.97	1.48	0.00	16.4	11.1	1.07	.221	1.70	11	2.85	88	5.66	2
8	Cliff Markle C. Markle	0.39	23.0	1915	NYY	3	2	0	1.000	2	12	2	0	0	15	1	3	1	6	0	1		87	1	4.70	2.35	2.00	0.39	13.8	6.9	0.91	.206	1.17	13	2.71	91	5.87	0.7
9	Joel Johnston J. Johnston	0.40	22.1	1991	KCR	13	1	0	1.000	0	21	0	0	0	9	1	1	0	9	0	1	3	85	0	8.46	3.63	2.33	0.00	24.7	10.6	0.81	.164	0.40	10	2.18	56	3.63	4.4
10	Jake Diekman J. Diekman	0.42	21.1	2020	OAK	21	2	0	1.000	0	31	0	0	0	8	1	2	1	12	1	2	1	84	0	13.08	5.06	2.58	0.42	36.9	14.3	0.94	.179	0.84	10	2.71	63	3.38	3.9
11	Craig Kimbrel C. Kimbrel	0.44	20.2	2010	ATL	21	4	0	1.000	0	40	0	0	1	9	1	2	0	16	0	7	1	88	4	17.42	6.97	2.50	0.00	45.5	18.2	1.21	.281	0.87	11	1.52	39	3.92	5.6
12	Arlie Pond A. Pond	0.45	20.0	1898	BAL	3	1	1	.500	2	4	1	1	0	8	1	4	0	9	2	1		76	1	1.80	4.05	0.44	0.00	5.3	11.8	0.85	.131	1.80	12	4.02	111	3.60	-0.9
13	Kevin Siegrist K. Siegrist	0.45	39.2	2013	STL	45	3	1	.750	0	50	0	0	0	17	2	2	1	18	1	15	1	152	0	11.34	4.08	2.78	0.23	32.9	11.8	0.88	.195	0.45	12	2.29	61	3.86	6.4
14	Zack Britton Z. Britton	0.54	67.0	2016	BAL	69	2	1	.667	0	74	0	0	47	38	4	7	1	18	0	63	3	254	10	9.94	2.42	4.11	0.13	29.1	7.1	0.84	.230	0.94	13	1.93	44	5.10	17.7
15	Joey Devine J. Devine	0.59	45.2	2008	OAK	42	6	1	.857	0	49	0	0	1	23	3	7	0	15	0	10	2	170	0	9.66	2.96	3.27	0.00	28.8	8.8	0.83	.217	1.38	14	1.96	46	4.53	11.7
16	Fernando Rodney F. Rodney	0.60	74.2	2012	TBR	76	2	2	.500	0	76	0	0	48	43	5	9	2	15	3	65	1	282	4	9.16	1.81	5.07	0.24	27.0	5.3	0.78	.220	1.08	16	2.12	52	5.18	16.2
17	Emmanuel Clase E. Clase	0.61	74.1	2024	CLE	74	4	2	.667	0	66	0	0	47	39	5	10	2	10	2	66	1	270	2	7.99	1.21	6.60	0.24	24.4	3.7	0.66	.195	1.21	15	2.22	55	4.72	15.2
18	Louis Coleman L. Coleman	0.61	29.2	2013	KCR	27	3	0	1.000	0	32	0	0	0	19	2	2	1	6	1	8	1	110	1	9.71	1.82	5.33	0.30	29.1	5.5	0.84	.257	0.61	15	2.03	52	5.76	6.3
19	Dennis Eckersley D. Eckersley	0.61	73.1	1990	OAK	63	4	2	.667	0	73	0	0	48	41	5	9	2	4	0	61	1	262	0	8.96	0.49	18.25	0.25	27.9	1.5	0.61	.213	1.10	17	1.33	35	5.03	20.6
20	Paul Kilgus P. Kilgus	0.63	28.2	1993	STL	22	1	0	1.000	1	21	0	0	1	18	2	2	1	8	1	7	1	109	0	6.59	2.51	2.63	0.31	19.3	7.3	0.91	.218	0.63	16	2.91	73	5.65	3.5
21	Brock Stewart B. Stewart	0.65	27.2	2023	MIN	28	2	0	1.000	0	39	0	0	1	19	2	2	1	11	1	5	3	109	1	12.69	3.58	3.55	0.33	35.8	10.1	1.08	.316	0.65	15	2.20	51	6.18	6.4
22	George McQuillan G. McQuillan	0.66	41.0	1907	PHN	6	4	0	1.000	5	28	5	3	0	21	3	3	0	11	1	1		145	1	6.15	2.41	2.55	0.00	19.3	7.6	0.78	.200	0.66	27	1.69	64	4.61	4.3
23	Kenley Jansen K. Jansen	0.67	27.0	2010	LAD	25	1	0	1.000	0	41	0	0	4	12	2	2	0	15	1	8	1	109	1	13.67	5.00	2.73	0.00	37.6	13.8	1.00	.231	0.67	17	1.81	46	4.00	6.4
24	Casey Sadler C. Sadler	0.67	40.1	2021	SEA	42	0	1	.000	0	37	0	0	0	19	3	4	1	10	1	2	0	145	2	8.26	2.23	3.70	0.22	25.5	6.9	0.72	.188	0.89	16	2.47	59	4.24	7.7
25	Hank Aguirre H. Aguirre	0.69	39.0	1968	LAD	25	1	2	.333	0	25	0	0	3	32	3	8	0	13	3	16	3	167	4	5.77	3.00	1.92	0.00	15.0	7.8	1.15	.254	1.85	25	2.33	90	7.38	1.1