lowest single season era for a relief pitcher minimum 35 games

Kevin Siegrist has the lowest ERA by a relief pitcher with 35+ games pitched in a season, with an ERA of 0.45 in his rookie season in 2013.

NAMEERAGSEASONTMWLW%GSSOCGSHOSVIPHERRHRBBHBPGFIBBTBFWPK/9BB/9K/BBHR/9K%BB%WHIPBABIPRAH/9
1Kevin Siegrist
K. Siegrist
0.45
45
2013
3
1
.750
0
50
0
0
0
39.2
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
3.86
2Zack Britton
Z. Britton
0.54
69
2016
2
1
.667
0
74
0
0
47
67.0
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
5.10
3Joey Devine
J. Devine
0.59
42
2008
6
1
.857
0
49
0
0
1
45.2
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
4.53
4Fernando Rodney
F. Rodney
0.60
76
2012
2
2
.500
0
76
0
0
48
74.2
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
5.18
5Emmanuel Clase
E. Clase
0.61
74
2024
4
2
.667
0
66
0
0
47
74.1
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
4.72
6Dennis Eckersley
D. Eckersley
0.61
63
1990
4
2
.667
0
73
0
0
48
73.1
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
5.03
7Casey Sadler
C. Sadler
0.67
42
2021
0
1
.000
0
37
0
0
0
40.1
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
4.24
8Mike Adams
M. Adams
0.73
37
2009
0
0
0
45
0
0
0
37.0
14
3
9
1
8
0
5
1
136
1
10.95
1.95
5.63
0.24
33.1
5.9
0.59
.159
2.19
3.41
9Jesse Crain
J. Crain
0.74
38
2013
2
3
.400
0
46
0
0
0
36.2
31
3
6
0
11
1
5
1
152
0
11.29
2.70
4.18
0.00
30.3
7.2
1.15
.330
1.47
7.61
10Blake Treinen
B. Treinen
0.78
68
2018
9
2
.818
0
100
0
0
38
80.1
46
7
12
2
21
1
58
3
315
6
11.20
2.35
4.76
0.22
31.7
6.7
0.83
.230
1.34
5.15
11Bill Henry
B. Henry
0.87
37
1964
2
2
.500
0
29
0
0
6
52.0
31
5
9
2
12
3
20
4
202
1
5.02
2.08
2.42
0.35
14.4
5.9
0.83
.186
1.56
5.37
12Dennys Reyes
D. Reyes
0.89
66
2006
5
0
1.000
0
49
0
0
0
50.2
35
5
8
3
15
0
8
2
194
4
8.70
2.66
3.27
0.53
25.3
7.7
0.99
.252
1.42
6.22
13Junior Thompson
J. Thompson
0.92
38
1946
4
5
.444
0
29
0
0
4
58.2
33
6
16
4
39
0
27
238
2
4.45
5.98
0.74
0.61
12.2
16.4
1.23
.175
2.45
5.06
14Jonathan Papelbon
J. Papelbon
0.92
59
2006
4
2
.667
0
75
0
0
35
68.1
40
7
8
3
13
1
49
2
257
2
9.88
1.71
5.77
0.40
29.2
5.1
0.78
.224
1.05
5.27
15Wade Davis
W. Davis
0.94
69
2015
8
1
.889
0
78
0
0
17
67.1
33
7
8
3
20
0
24
1
251
1
10.43
2.67
3.90
0.40
31.1
8.0
0.79
.200
1.07
4.41
16Chris Hammond
C. Hammond
0.95
63
2002
7
2
.778
0
63
0
0
0
76.0
53
8
15
1
31
1
6
9
311
1
7.46
3.67
2.03
0.12
20.3
10.0
1.11
.242
1.78
6.28
17Eric O'Flaherty
E. O'Flaherty
0.98
78
2011
2
4
.333
0
67
0
0
0
73.2
59
8
9
2
21
3
5
8
301
1
8.19
2.57
3.19
0.24
22.3
7.0
1.09
.274
1.10
7.21
18Wade Davis
W. Davis
1.00
71
2014
9
2
.818
0
109
0
0
3
72.0
38
8
8
0
23
3
11
0
279
1
13.63
2.88
4.74
0.00
39.1
8.2
0.85
.264
1.00
4.75
19Craig Kimbrel
C. Kimbrel
1.01
63
2012
3
1
.750
0
116
0
0
42
62.2
27
7
7
3
14
2
56
0
231
5
16.66
2.01
8.29
0.43
50.2
6.1
0.65
.250
1.01
3.88
20Aaron Loup
A. Loup
1.01
63
2021
6
0
1.000
0
54
0
0
0
53.2
35
6
9
1
16
4
6
0
208
0
9.06
2.68
3.38
0.17
26.0
7.7
0.95
.256
1.51
5.87
21Rollie Fingers
R. Fingers
1.04
47
1981
6
3
.667
0
61
0
0
28
78.0
55
9
9
3
13
1
41
5
297
1
7.04
1.50
4.69
0.35
20.5
4.4
0.87
.237
1.04
6.35
22Chris Martin
C. Martin
1.05
55
2023
4
1
.800
0
46
0
0
3
51.1
45
6
6
2
8
0
12
3
199
1
8.06
1.40
5.75
0.35
23.1
4.0
1.03
.301
1.05
7.89
23Brad Ziegler
B. Ziegler
1.06
47
2008
3
0
1.000
0
30
0
0
11
59.2
47
7
8
2
22
1
21
3
229
0
4.53
3.32
1.36
0.30
13.1
9.6
1.16
.259
1.21
7.09
24Cla Meredith
C. Meredith
1.07
45
2006
5
1
.833
0
37
0
0
0
50.2
30
6
6
3
6
2
11
3
185
0
6.57
1.07
6.17
0.53
20.0
3.2
0.71
.197
1.07
5.33
25David Robertson
D. Robertson
1.08
70
2011
4
0
1.000
0
100
0
0
1
66.2
40
8
9
1
35
1
8
6
272
6
13.50
4.72
2.86
0.14
36.8
12.9
1.13
.289
1.21
5.40
StatMuse has game-level data for games pitched going back to the 1908 season.
Some of the information used here was obtained free of charge from Retrosheet.

More Cardinals Stats

Team Batting Leaders

HR

20

Contreras

Willson Contreras

RBI

80

Contreras

Willson Contreras

AVG

.290

Burleson

Alec Burleson
Team Pitching Leaders

W

14

Gray

Sonny Gray

K

201

Gray

Sonny Gray

ERA

3.07

Leahy

Kyle Leahy
Team Rankings

HR

148

29th

R

689

19th

SO

1,209

29th

ERA

4.29

21st

2025 Division Standings
TEAMWLPCTGB
97
65
.599
92
70
.568
5.0
83
79
.512
14.0
Cardinals Cardinals
78
84
.481
19.0
71
91
.438
26.0
Schedule
DATEMATCHUPTIME (ET)
Thu
3/26
@
4:15 PM
Sat
3/28
@
2:15 PM
Sun
3/29
@
2:15 PM
Mon
3/30
@
7:45 PM
Tue
3/31
@
7:45 PM
Last Game
STL Cardinals

78 - 84

0

Final

2

CHC Cubs

92 - 70

Sun 28 Sep 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
@
1:15 PM
Thu
3/26
@
2:10 PM
Thu
3/26
@
2:20 PM
Thu
3/26
@
3:05 PM