lowest era among relievers with at least 10 innings pitched

34 pitchers are tied for the lowest career ERA by a relief pitcher when pitching at least 10 innings, with an ERA of 0.00. The first three are Larry Jacobus, Rip Jordan and Paul Musser.

NAMEERAIPGWLW%GSSOCGSHOSVHERRHRBBHBPGFIBBTBFWPK/9BB/9K/BBHR/9K%BB%WHIPBABIPRAH/9
1Larry Jacobus
L. Jacobus
0.00
10.1
4
0
0
0
2
0
0
0
3
0
0
0
1
0
3
35
0
1.74
0.87
2.00
0.00
5.7
2.9
0.39
.094
0.00
2.61
2Rip Jordan
R. Jordan
0.00
10.1
3
0
0
0
0
0
0
0
13
8
2
0
0
1
42
0
0.00
0.00
1.74
0.0
0.0
1.26
.275
6.97
11.32
3Paul Musser
P. Musser
0.00
15.1
6
0
0
0
9
0
0
2
11
5
0
12
2
2
69
1
5.28
7.04
0.75
0.00
13.0
17.4
1.50
.239
2.93
6.46
4Tommy Thompson
T. Thompson
0.00
22.2
5
0
0
0
11
0
0
0
27
21
0
11
2
5
100
2
4.37
4.37
1.00
0.00
11.0
11.0
1.68
.355
8.34
10.72
5Jerry Akers
J. Akers
0.00
14.1
4
1
0
1.000
0
10
0
0
0
15
11
0
11
2
3
70
0
6.28
6.91
0.91
0.00
14.3
15.7
1.81
.319
6.91
9.42
6Cy Slapnicka
C. Slapnicka
0.00
10.2
2
0
0
0
5
0
0
0
2
1
0
3
2
1
36
0
4.22
2.53
1.67
0.00
13.9
8.3
0.47
.077
0.84
1.69
7Jack Bushelman
J. Bushelman
0.00
10.2
5
1
0
1.000
0
5
0
0
0
10
6
0
10
0
3
48
2
4.22
8.44
0.50
0.00
10.4
20.8
1.88
.303
5.06
8.44
8Jim Baskette
J. Baskette
0.00
56.2
21
2
2
.500
0
23
0
0
1
49
20
1
19
1
21
232
3
3.65
3.02
1.21
0.16
9.9
8.2
1.20
.255
3.18
7.78
9Bert Hall
B. Hall
0.00
16.0
6
0
1
.000
0
7
0
0
0
11
6
0
11
1
5
70
0
3.94
6.19
0.64
0.00
10.0
15.7
1.38
.216
3.38
6.19
10Jack Killilay
J. Killilay
0.00
30.0
7
2
0
1.000
0
12
0
0
0
24
9
0
16
4
5
118
1
3.60
4.80
0.75
0.00
10.2
13.6
1.33
.279
2.70
7.20
11Judge Nagle
J. Nagle
0.00
32.0
9
4
0
1.000
0
17
0
0
1
31
12
2
7
0
7
126
1
4.78
1.97
2.43
0.56
13.5
5.6
1.19
.290
3.38
8.72
12Tex Covington
T. Covington
0.00
49.0
16
2
0
1.000
0
21
0
0
0
53
27
1
21
6
7
210
3
3.86
3.86
1.00
0.18
10.0
10.0
1.51
.323
4.96
9.73
13Fred Sherry
F. Sherry
0.00
35.1
7
0
1
.000
0
16
0
0
0
36
21
1
9
0
6
144
0
4.08
2.29
1.78
0.25
11.1
6.3
1.27
.297
5.35
9.17
14Lefty Russell
L. Russell
0.00
31.2
8
0
2
.000
0
9
0
0
0
37
35
2
20
4
4
149
2
2.56
5.68
0.45
0.57
6.0
13.4
1.80
.307
9.95
10.52
15Ray Boyd
R. Boyd
0.00
14.1
4
1
0
1.000
0
5
0
0
1
11
4
0
4
1
4
59
1
3.14
2.51
1.25
0.00
8.5
6.8
1.05
.224
2.51
6.91
16Ed Zmich
E. Zmich
0.00
20.2
7
1
0
1.000
0
6
0
0
0
16
8
0
13
1
7
86
1
2.61
5.66
0.46
0.00
7.0
15.1
1.40
.242
3.48
6.97
17Spec Harkness
S. Harkness
0.00
45.1
16
5
0
1.000
0
25
0
0
1
36
20
1
14
0
12
170
0
4.96
2.78
1.79
0.20
14.7
8.2
1.10
.269
3.97
7.15
18Jiggs Parson
J. Parson
0.00
40.0
13
0
2
.000
0
10
0
0
0
52
42
3
30
5
13
189
0
2.25
6.75
0.33
0.68
5.3
15.9
2.05
.348
9.45
11.70
19Dixie Walker
D. Walker
0.00
32.2
12
2
2
.500
0
13
0
0
0
30
16
0
21
0
10
135
1
3.58
5.79
0.62
0.00
9.6
15.6
1.56
.297
4.41
8.27
20Hub Pernoll
H. Pernoll
0.00
29.1
9
0
2
.000
0
13
0
0
0
24
17
1
9
3
4
117
2
3.99
2.76
1.44
0.31
11.1
7.7
1.13
.253
5.22
7.36
21Joe Hovlik
J. Hovlik
0.00
41.1
13
1
0
1.000
0
17
0
0
0
54
34
1
17
2
6
190
0
3.70
3.70
1.00
0.22
8.9
8.9
1.72
.346
7.40
11.76
22Ben Van Dyke
B. Van Dyke
0.00
15.2
4
0
0
0
12
0
0
0
12
6
0
9
0
3
64
1
6.89
5.17
1.33
0.00
18.8
14.1
1.34
.279
3.45
6.89
23Kirby White
K. White
0.00
39.2
14
2
1
.667
0
10
0
0
2
26
14
1
17
0
11
153
2
2.27
3.86
0.59
0.23
6.5
11.1
1.08
.200
3.18
5.90
24Fred Olmstead
F. Olmstead
0.00
83.1
29
5
1
.833
0
33
0
0
2
86
39
1
22
4
19
336
3
3.56
2.38
1.50
0.11
9.8
6.5
1.30
.308
4.21
9.29
25Jack Ryan
J. Ryan
0.00
47.2
14
1
1
.500
0
14
0
0
1
40
24
3
11
3
12
181
0
2.64
2.08
1.27
0.57
7.7
6.1
1.07
.247
4.53
7.55
Unlock 2x data
StatMuse has game-level data for ERA and innings pitched going back to the 1901 season.
Some of the information used here was obtained free of charge from Retrosheet.

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