what is the lowest single season reliever era

50 pitchers are tied for the lowest ERA by a relief pitcher in a season, with an ERA of 0.00 in 2025. The first three are Austin Pope, Clayton Kershaw and Roki Sasaki.

	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	Austin Pope A. Pope	0.00	2025	AZ	1	0	0		0	1	0	0	0	2.0	2	0	0	0	1	0	0	0	9	0	4.50	4.50	1.00	0.00	11.1	11.1	1.50	.286	0.00	9.00
2	Clayton Kershaw C. Kershaw	0.00	2025	LAD	1	0	0		0	0	0	0	0	1.0	0	0	0	0	0	0	0	0	3	0	0.00	0.00		0.00	0.0	0.0	0.00	.000	0.00	0.00
3	Roki Sasaki R. Sasaki	0.00	2025	LAD	2	0	0		0	4	0	0	0	2.0	1	0	0	0	0	0	0	0	7	0	18.00	0.00		0.00	57.1	0.0	0.50	.333	0.00	4.50
4	Hunter Barco H. Barco	0.00	2025	PIT	2	1	0	1.000	0	3	0	0	0	3.0	3	0	0	0	0	0	0	0	12	0	9.00	0.00		0.00	25.0	0.0	1.00	.333	0.00	9.00
5	Clay Holmes C. Holmes	0.00	2025	NYM	2	0	0		0	3	0	0	0	4.2	4	0	1	0	0	0	0	0	18	1	5.79	0.00		0.00	16.7	0.0	0.86	.267	1.93	7.71
6	Jose Espada J. Espada	0.00	2025	BAL	1	0	0		0	4	0	0	0	3.0	1	0	0	0	0	0	1	0	9	0	12.00	0.00		0.00	44.4	0.0	0.33	.200	0.00	3.00
7	Isiah Kiner-Falefa I. Kiner-Falefa	0.00	2025	TOR	1	0	0		0	0	0	0	0	0.2	0	0	0	0	0	0	1	0	2	0	0.00	0.00		0.00	0.0	0.0	0.00	.000	0.00	0.00
8	Zach McKinstry Z. McKinstry	0.00	2025	DET	1	0	0		0	0	0	0	0	0.1	0	0	0	0	0	0	1	0	1	0	0.00	0.00		0.00	0.0	0.0	0.00	.000	0.00	0.00
9	Michael Lorenzen M. Lorenzen	0.00	2025	KCR	1	0	0		0	1	0	0	0	1.0	0	0	0	0	0	0	0	0	3	0	9.00	0.00		0.00	33.3	0.0	0.00	.000	0.00	0.00
10	Dom Hamel D. Hamel	0.00	2025	NYM	1	0	0		0	0	0	0	0	1.0	3	0	0	0	0	1	0	0	6	0	0.00	0.00		0.00	0.0	0.0	3.00	.600	0.00	27.00
11	Michael Soroka M. Soroka	0.00	2025	CHC	5	0	0		0	5	0	0	0	6.1	3	0	4	0	4	1	1	0	28	0	7.11	5.68	1.25	0.00	17.9	14.3	1.11	.167	5.68	4.26
12	Logan Davidson L. Davidson	0.00	2025	LAA	1	0	0		0	1	0	0	0	1.0	0	0	0	0	0	0	1	0	3	0	9.00	0.00		0.00	33.3	0.0	0.00	.000	0.00	0.00
13	Garrett Acton G. Acton	0.00	2025	TBR	1	0	0		0	0	0	0	0	1.0	0	0	0	0	2	0	1	0	5	1	0.00	18.00	0.00	0.00	0.0	40.0	2.00	.000	0.00	0.00
14	Javier Assad J. Assad	0.00	2025	CHC	1	1	0	1.000	0	1	0	0	0	2.1	2	0	0	0	2	0	0	0	10	0	3.86	7.71	0.50	0.00	10.0	20.0	1.71	.286	0.00	7.71
15	Austin Slater A. Slater	0.00	2025	NYY	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
16	Luke Maile L. Maile	0.00	2025	KCR	1	0	0		0	0	0	0	0	1.0	0	0	0	0	1	0	1	0	4	0	0.00	9.00	0.00	0.00	0.0	25.0	1.00	.000	0.00	0.00
17	Nick Raquet N. Raquet	0.00	2025	STL	2	0	0		0	1	0	0	0	2.0	0	0	0	0	1	0	0	0	7	0	4.50	4.50	1.00	0.00	14.3	14.3	0.50	.000	0.00	0.00
18	Christian Roa C. Roa	0.00	2025	MIA	2	0	0		0	3	0	0	0	3.0	1	0	0	0	3	0	1	0	12	0	9.00	9.00	1.00	0.00	25.0	25.0	1.33	.167	0.00	3.00
19	Reiver Sanmartin R. Sanmartin	0.00	2025	CIN	1	0	0		0	2	0	0	0	1.2	2	0	1	0	1	0	0	1	8	1	10.80	5.40	2.00	0.00	25.0	12.5	1.80	.400	5.40	10.80
20	Ryan Fitzgerald R. Fitzgerald	0.00	2025	MIN	2	0	0		0	0	0	0	0	2.0	2	0	0	0	0	0	2	0	8	0	0.00	0.00		0.00	0.0	0.0	1.00	.250	0.00	9.00
21	Niko Kavadas N. Kavadas	0.00	2025	LAA	1	0	0		0	1	0	0	0	1.2	3	0	0	0	1	0	1	0	9	0	5.40	5.40	1.00	0.00	11.1	11.1	2.40	.429	0.00	16.20
22	Joey Estes J. Estes	0.00	2025	ATH	1	0	0		0	1	0	0	0	4.0	1	0	0	0	0	0	1	0	13	0	2.25	0.00		0.00	7.7	0.0	0.25	.083	0.00	2.25
23	Alex Lange A. Lange	0.00	2025	DET	1	0	0		0	1	0	0	0	1.0	2	0	0	0	1	0	1	0	6	0	9.00	9.00	1.00	0.00	16.7	16.7	3.00	.500	0.00	18.00
24	Anthony Seigler A. Seigler	0.00	2025	MIL	1	0	0		0	0	0	0	0	1.0	1	0	0	0	0	0	1	0	4	0	0.00	0.00		0.00	0.0	0.0	1.00	.250	0.00	9.00
25	Jared Triolo J. Triolo	0.00	2025	PIT	1	0	0		0	0	0	0	0	1.0	3	0	2	1	1	0	1	0	8	0	0.00	9.00	0.00	9.00	0.0	12.5	4.00	.333	18.00	27.00

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StatMuse has game-level data for ERA going back to the 1901 season.

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

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36

Suárez

RBI

100

Perdomo

AVG

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Team Pitching Leaders

13

Gallen

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ERA

3.22

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Team Rankings

214

8th

791

6th

1,288

23rd

ERA

4.49

23rd

2025 Division Standings

TEAM	W	L	PCT	GB
Dodgers	93	69	.574
Padres	90	72	.556	3.0
Giants	81	81	.500	12.0
Diamondbacks	80	82	.494	13.0
Rockies	43	119	.265	50.0

Schedule

DATE	MATCHUP			TIME (ET)
Thu 3/26	AZ	@	LAD	4:00 AM
Fri 3/27	AZ	@	LAD	4:00 AM
Sat 3/28	AZ	@	LAD	4:00 AM
Mon 3/30	DET	@	AZ	10:10 PM
Tue 3/31	DET	@	AZ	9:40 PM

Last Game

Diamondbacks

80 - 82

Final

Padres

90 - 72

Sun 28 Sep 2025

MLB 2025 Batting Leaders

HR Leaders

60

Raleigh

56

Schwarber

55

Ohtani

RBI Leaders

132

Schwarber

126

Alonso

125

Raleigh

Batting Average Leaders

.331

Judge

.311

Bichette

.311

Wilson

Hit Leaders

184

Witt

181

Bichette

181

Arraez

Run Leaders

146

Ohtani

137

Judge

120

Soto

OBP Leaders

.457

Judge

.399

Springer

.396

Soto

SLG Leaders

.688

Judge

.622

Ohtani

.589

Raleigh

SB Leaders

49

Caballero

44

Ramírez

44

Simpson

MLB 2025 Pitching Leaders

Win Leaders

19

Fried

18

Crochet

18

Rodón

Strikeout Leaders

255

Crochet

241

Skubal

224

Webb

ERA Leaders

1.97

Skenes

2.21

Skubal

2.43

Brown

WHIP Leaders

0.89

Skubal

0.92

deGrom

0.93

Woo

K/9 Leaders

11.52

Cease

11.18

Crochet

11.10

Skubal

K/BB Leaders

7.30

Skubal

5.54

Crochet

5.50

Woo

Walk Leaders

32

Littell

33

Skubal

36

Woo

MLB Fantasy 2025

FanDuel Points Leaders

2,712.2

Ohtani

2,418.4

Judge

2,278.5

Soto

DraftKings Points Leaders

1,990.4

Ohtani

1,802

Judge

1,702

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MLB 2025 Betting

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95-67

94-68

101-79

95-76

90-75

Worst Record ATS

65-96

75-99

76-94

81-98

74-88

75-87

MLB 2025 Standings

NL East	W	L	PCT	GB
Phillies - y	96	66	.593
Mets	83	79	.512	13.0
Marlins	79	83	.488	17.0
Braves	76	86	.469	20.0
Nationals	66	96	.407	30.0
NL Central	W	L	PCT	GB
Brewers - y	97	65	.599
Cubs - w	92	70	.568	5.0
Reds - w	83	79	.512	14.0
Cardinals	78	84	.481	19.0
Pirates	71	91	.438	26.0
NL West	W	L	PCT	GB
Dodgers - y	93	69	.574
Padres - w	90	72	.556	3.0
Giants	81	81	.500	12.0
Diamondbacks	80	82	.494	13.0
Rockies	43	119	.265	50.0

AL East	W	L	PCT	GB
Blue Jays - y	94	68	.580
Yankees - w	94	68	.580
Red Sox - w	89	73	.549	5.0
Rays	77	85	.475	17.0
Orioles	75	87	.463	19.0
AL Central	W	L	PCT	GB
Guardians - y	88	74	.543
Tigers - w	87	75	.537	1.0
Royals	82	80	.506	6.0
Twins	70	92	.432	18.0
White Sox	60	102	.370	28.0
AL West	W	L	PCT	GB
Mariners - y	90	72	.556
Astros	87	75	.537	3.0
Rangers	81	81	.500	9.0
Athletics	76	86	.469	14.0
Angels	72	90	.444	18.0

MLB 2025 Scores & Schedule

Scores

DATE	MATCHUP			SCORE
Tue 9/16	CIN	@	STL	6-2
Tue 9/16	ATL	@	WSH	9-4
Tue 9/16	ATH	@	BOS	4-5
Tue 9/16	TOR	@	TBR	1-2
Tue 9/16	SEA	@	KCR	5-7

Schedule

DATE	MATCHUP			TIME (ET)
Wed 3/25	NYY	@	SFG	8:05 PM
Thu 3/26	LAA	@	HOU	4:00 AM
Thu 3/26	AZ	@	LAD	4:00 AM
Thu 3/26	WSH	@	CHC	4:00 AM
Thu 3/26	CWS	@	MIL	2:10 PM

50 pitchers are tied for the lowest ERA by a relief pitcher in a season, with an ERA of 0.00 in 2025. The first three are Austin Pope, Clayton Kershaw and Roki Sasaki.

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