lowest reliever era 2021

50 pitchers were tied for the best ERA by a relief pitcher in 2021, with an ERA of 0.00. The first three are Joe Biagini, Seranthony Domínguez and Nick Pivetta.

NAMEERASEASONTMGWLW%GSSOCGSHOSVIPHERRHRBBHBPGFIBBTBFWPK/9BB/9K/BBHR/9K%BB%WHIPBABIPRAH/9
1Joe Biagini
J. Biagini
0.00
2021
1
1
0
1.000
0
2
0
0
0
3.0
2
0
0
0
1
1
1
0
13
0
6.00
3.00
2.00
0.00
15.4
7.7
1.00
.222
0.00
6.00
2Seranthony Domínguez
S. Domínguez
0.00
2021
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
3Nick Pivetta
N. Pivetta
0.00
2021
1
0
0
0
1
0
0
1
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
4Eduardo Rodriguez
E. Rodriguez
0.00
2021
1
1
0
1.000
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
5Andrés Muñoz
A. Muñoz
0.00
2021
1
0
0
0
1
0
0
0
0.2
0
0
0
0
2
0
0
0
4
0
13.50
27.00
0.50
0.00
25.0
50.0
3.00
.000
0.00
0.00
6Kyle Dohy
K. Dohy
0.00
2021
1
0
0
0
1
0
0
0
1.0
1
0
0
0
1
0
1
0
5
0
9.00
9.00
1.00
0.00
20.0
20.0
2.00
.333
0.00
9.00
7Jack Flaherty
J. Flaherty
0.00
2021
2
0
0
0
3
0
0
0
2.0
1
0
0
0
1
0
0
0
8
0
13.50
4.50
3.00
0.00
37.5
12.5
1.00
.250
0.00
4.50
8Sergio Alcántara
S. Alcántara
0.00
2021
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
9AJ Ramos
AJ Ramos
0.00
2021
4
0
0
0
3
0
0
0
4.2
0
0
0
0
2
0
3
0
16
0
5.79
3.86
1.50
0.00
18.8
12.5
0.43
.000
0.00
0.00
10Logan Allen
L. Allen
0.00
2021
3
1
0
1.000
0
7
0
0
0
6.0
7
0
0
0
1
1
1
0
25
0
10.50
1.50
7.00
0.00
28.0
4.0
1.33
.438
0.00
10.50
11Luis Severino
L. Severino
0.00
2021
4
1
0
1.000
0
8
0
0
0
6.0
2
0
0
0
1
1
1
0
22
0
12.00
1.50
8.00
0.00
36.4
4.5
0.50
.167
0.00
3.00
12Romy Gonzalez
R. Gonzalez
0.00
2021
1
0
0
0
1
0
0
0
0.1
0
0
0
0
0
0
1
0
1
0
27.00
0.00
0.00
100.0
0.0
0.00
0.00
0.00
13Kaleb Ort
K. Ort
0.00
2021
1
0
0
0
0
0
0
0
0.1
1
0
0
0
1
0
0
0
3
0
0.00
27.00
0.00
0.00
0.0
33.3
6.00
.500
0.00
27.00
14Kervin Castro
K. Castro
0.00
2021
10
1
1
.500
0
13
0
0
0
13.1
13
0
1
0
4
0
4
1
56
0
8.78
2.70
3.25
0.00
23.2
7.1
1.27
.333
0.68
8.78
15Michael Pineda
M. Pineda
0.00
2021
1
1
0
1.000
0
3
0
0
0
3.0
2
0
0
0
1
0
0
0
12
0
9.00
3.00
3.00
0.00
25.0
8.3
1.00
.250
0.00
6.00
16Bryan Baker
B. Baker
0.00
2021
1
0
0
0
1
0
0
0
1.0
1
0
0
0
0
0
0
0
4
2
9.00
0.00
0.00
25.0
0.0
1.00
.333
0.00
9.00
17Andrew Vasquez
A. Vasquez
0.00
2021
2
0
0
0
3
0
0
0
1.2
1
0
1
0
0
0
1
0
6
0
16.20
0.00
0.00
50.0
0.0
0.60
.333
5.40
5.40
18Austin Slater
A. Slater
0.00
2021
1
0
0
0
0
0
0
0
0.1
0
0
0
0
1
0
1
0
2
0
0.00
27.00
0.00
0.00
0.0
50.0
3.00
.000
0.00
0.00
19Touki Toussaint
T. Toussaint
0.00
2021
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
20Justin Turner
J. Turner
0.00
2021
1
0
0
0
0
0
0
0
1.0
2
0
0
0
0
0
1
0
5
0
0.00
0.00
0.00
0.0
0.0
2.00
.400
0.00
18.00
21Chris Ellis
C. Ellis
0.00
2021
1
1
0
1.000
0
7
0
0
0
4.0
3
0
0
0
1
0
1
0
16
1
15.75
2.25
7.00
0.00
43.8
6.3
1.00
.375
0.00
6.75
22Mitch Moreland
M. Moreland
0.00
2021
1
0
0
0
1
0
0
0
1.0
1
0
0
0
0
0
1
0
4
0
9.00
0.00
0.00
25.0
0.0
1.00
.333
0.00
9.00
23Kevin Pillar
K. Pillar
0.00
2021
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
24Connor Overton
C. Overton
0.00
2021
TOT
6
0
0
0
6
0
0
0
8.2
4
0
0
0
2
0
2
0
30
1
6.23
2.08
3.00
0.00
20.0
6.7
0.69
.182
0.00
4.15
25Damon Jones
D. Jones
0.00
2021
1
0
0
0
0
0
0
0
0.1
1
0
0
0
2
0
0
0
4
0
0.00
54.00
0.00
0.00
0.0
50.0
9.00
.500
0.00
27.00
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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2025 Division Standings
TEAMWLPCTGB
97
65
.599
Cubs Cubs
92
70
.568
5.0
83
79
.512
14.0
78
84
.481
19.0
71
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.438
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Schedule
DATEMATCHUPTIME (ET)
Thu
3/26
@
4:00 AM
Sat
3/28
@
4:00 AM
Sun
3/29
@
4:00 AM
Mon
3/30
@
4:00 AM
Tue
3/31
@
4:00 AM
Last Game
CHC Cubs

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1

Final

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MIL Brewers

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Sat 11 Oct 2025

MLB 2025 Batting Leaders

MLB 2025 Pitching Leaders

MLB Fantasy 2025

MLB 2025 Betting

MLB 2025 Standings

NL EastWLPCTGB
96
66
.593
83
79
.512
13.0
79
83
.488
17.0
76
86
.469
20.0
66
96
.407
30.0
NL CentralWLPCTGB
97
65
.599
Cubs Cubs - w
92
70
.568
5.0
Reds Reds - w
83
79
.512
14.0
78
84
.481
19.0
71
91
.438
26.0
NL WestWLPCTGB
93
69
.574
90
72
.556
3.0
81
81
.500
12.0
80
82
.494
13.0
43
119
.265
50.0
AL EastWLPCTGB
94
68
.580
94
68
.580
89
73
.549
5.0
77
85
.475
17.0
75
87
.463
19.0
AL CentralWLPCTGB
88
74
.543
87
75
.537
1.0
82
80
.506
6.0
70
92
.432
18.0
60
102
.370
28.0
AL WestWLPCTGB
90
72
.556
87
75
.537
3.0
81
81
.500
9.0
76
86
.469
14.0
72
90
.444
18.0

MLB 2025 Scores & Schedule

Scores

DATEMATCHUPSCORE
Tue
9/16
@
6-2
Tue
9/16
@
9-4
Tue
9/16
@
4-5
Tue
9/16
@
1-2
Tue
9/16
@
5-7

Schedule

DATEMATCHUPTIME (ET)
Wed
3/25
@
8:05 PM
Thu
3/26
@
4:00 AM
Thu
3/26
@
4:00 AM
Thu
3/26
@
2:10 PM
Thu
3/26
@
3:05 PM