what is the lowest era by a relief pitcher

50 pitchers are tied for the best ERA by a relief pitcher this season, with an ERA of 0.00. The first three are Joe Mantiply, Chris Paddack and Ethan Roberts.

Interpreted as:

What is the lowest era by a relief 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	H/9
1	Joe Mantiply J. Mantiply	0.00	2026	TOR	1	0	0		0	3	0	0	0	1.1	0	0	0	0	0	0	0	0	4	0	20.25	0.00		0.00	75.0	0.0	0.00	.000	0.00	0.00
2	Chris Paddack C. Paddack	0.00	2026	MIA	1	0	0		0	4	0	0	0	4.2	3	0	1	0	4	0	0	0	22	1	7.71	7.71	1.00	0.00	18.2	18.2	1.50	.214	1.93	5.79
3	Ethan Roberts E. Roberts	0.00	2026	CHC	1	0	0		0	0	0	0	0	0.2	1	0	0	0	0	0	1	0	3	0	0.00	0.00		0.00	0.0	0.0	1.50	.333	0.00	13.50
4	Taylor Rashi T. Rashi	0.00	2026	AZ	1	1	0	1.000	0	0	0	0	0	1.0	0	0	0	0	0	0	1	0	3	0	0.00	0.00		0.00	0.0	0.0	0.00	.000	0.00	0.00
5	Eli Morgan E. Morgan	0.00	2026	KCR	1	0	0		0	5	0	0	1	3.0	1	0	0	0	1	0	1	0	12	0	15.00	3.00	5.00	0.00	41.7	8.3	0.67	.167	0.00	3.00
6	Christian Koss C. Koss	0.00	2026	SFG	1	0	0		0	0	0	0	0	1.0	0	0	0	0	0	0	1	0	3	0	0.00	0.00		0.00	0.0	0.0	0.00	.000	0.00	0.00
7	Lazaro Estrada L. Estrada	0.00	2026	TOR	1	0	0		0	3	0	0	0	4.0	0	0	0	0	2	0	0	0	14	0	6.75	4.50	1.50	0.00	21.4	14.3	0.50	.000	0.00	0.00
8	Ryan Yarbrough R. Yarbrough	0.00	2026	NYY	2	0	0		0	3	0	0	0	2.2	1	0	0	0	0	1	2	0	9	0	10.13	0.00		0.00	33.3	0.0	0.38	.200	0.00	3.38
9	Hunter Bigge H. Bigge	0.00	2026	TBR	1	0	0		0	1	0	0	0	0.2	0	0	0	0	1	0	0	0	3	0	13.50	13.50	1.00	0.00	33.3	33.3	1.50	.000	0.00	0.00
10	Blade Tidwell B. Tidwell	0.00	2026	SFG	1	0	0		0	2	0	0	1	3.0	2	0	0	0	0	0	1	0	9	0	6.00	0.00		0.00	22.2	0.0	0.67	.286	0.00	6.00
11	Jacob Latz J. Latz	0.00	2026	TEX	3	0	0		0	3	0	0	0	3.0	0	0	0	0	1	0	1	0	10	0	9.00	3.00	3.00	0.00	30.0	10.0	0.33	.000	0.00	0.00
12	Lucas Sims L. Sims	0.00	2026	CWS	1	0	0		0	1	0	0	0	2.0	1	0	0	0	1	1	0	0	9	0	4.50	4.50	1.00	0.00	11.1	11.1	1.00	.167	0.00	4.50
13	Martín Pérez M. Pérez	0.00	2026	ATL	1	0	0		0	3	0	0	0	4.1	2	0	0	0	0	0	1	0	14	0	6.23	0.00		0.00	21.4	0.0	0.46	.182	0.00	4.15
14	Gordon Graceffo G. Graceffo	0.00	2026	STL	3	1	0	1.000	0	0	0	0	0	2.2	0	0	0	0	2	0	1	0	8	0	0.00	6.75	0.00	0.00	0.0	25.0	0.75	.000	0.00	0.00
15	Raisel Iglesias R. Iglesias	0.00	2026	ATL	4	0	0		0	2	0	0	1	4.0	1	0	0	0	0	0	3	0	13	0	4.50	0.00		0.00	15.4	0.0	0.25	.091	0.00	2.25
16	Dylan Moore D. Moore	0.00	2026	PHI	1	0	0		0	0	0	0	0	0.2	1	0	0	0	0	0	1	0	3	0	0.00	0.00		0.00	0.0	0.0	1.50	.333	0.00	13.50
17	Nick Mears N. Mears	0.00	2026	KCR	4	1	0	1.000	0	3	0	0	0	4.0	2	0	0	0	1	0	0	0	14	0	6.75	2.25	3.00	0.00	21.4	7.1	0.75	.200	0.00	4.50
18	Jose Franco J. Franco	0.00	2026	CIN	1	0	0		0	0	0	0	0	1.2	3	0	0	0	0	0	0	0	7	0	0.00	0.00		0.00	0.0	0.0	1.80	.429	0.00	16.20
19	Jared Koenig J. Koenig	0.00	2026	MIL	3	0	0		0	4	0	0	0	2.1	3	0	2	0	2	0	0	2	13	1	15.43	7.71	2.00	0.00	30.8	15.4	2.14	.429	7.71	11.57
20	Antonio Senzatela A. Senzatela	0.00	2026	COL	2	0	0		0	6	0	0	0	4.2	2	0	0	0	1	0	0	0	17	0	11.57	1.93	6.00	0.00	35.3	5.9	0.64	.200	0.00	3.86
21	Tyler Phillips T. Phillips	0.00	2026	MIA	2	0	0		0	5	0	0	0	4.0	2	0	1	0	2	1	0	0	18	1	11.25	4.50	2.50	0.00	27.8	11.1	1.00	.200	2.25	4.50
22	Rico Garcia R. Garcia	0.00	2026	BAL	4	1	0	1.000	0	4	0	0	0	3.2	0	0	0	0	1	0	1	0	12	0	9.82	2.45	4.00	0.00	33.3	8.3	0.27	.000	0.00	0.00
23	John King J. King	0.00	2026	MIA	4	1	0	1.000	0	3	0	0	0	3.0	0	0	0	0	1	0	0	0	10	0	9.00	3.00	3.00	0.00	30.0	10.0	0.33	.000	0.00	0.00
24	José Urquidy J. Urquidy	0.00	2026	PIT	2	0	0		0	3	0	0	1	3.0	2	0	1	0	1	0	2	0	10	0	9.00	3.00	3.00	0.00	30.0	10.0	1.00	.333	3.00	6.00
25	Daniel Palencia D. Palencia	0.00	2026	CHC	3	0	0		0	3	0	0	1	3.0	3	0	0	0	0	0	3	0	11	0	9.00	0.00		0.00	27.3	0.0	1.00	.375	0.00	9.00

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Some of the information used here was obtained free of charge from Retrosheet.

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Mon 4/6	LAD	@	TOR	7:07 PM
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Reds	6	3	.667	1.0
Pirates	6	3	.667	1.0
Cardinals	5	4	.556	2.0
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