lowest era relief pitcher career 200 innings pitched

Sam Leever has the best career ERA by a relief pitcher when pitching at least 200 innings, with an ERA of 0.08.

Interpreted as:
lowest era relief pitcher career 200 or more innings pitched
NAMEERAIPGWLW%GSSOCGSHOSVHERRHRBBHBPGFIBBTBFWPK/9BB/9K/BBHR/9K%BB%WHIPBABIPRAH/9
1Sam Leever
S. Leever
0.08
226.0
74
16
5
.762
0
79
0
0
10
215
86
1
50
10
61
4
3.15
1.99
1.58
0.04
5.8
1.17
.299
3.42
8.56
2Deacon Phillippe
D. Phillippe
0.12
234.0
75
21
3
.875
0
97
0
0
10
200
87
2
35
5
62
6
3.73
1.35
2.77
0.08
4.2
1.00
.281
3.35
7.69
3Howie Camnitz
H. Camnitz
0.65
305.2
89
26
12
.684
0
170
0
0
14
258
129
3
114
10
73
12
5.01
3.36
1.49
0.09
9.3
1.22
.275
3.80
7.60
4Ed Walsh
E. Walsh
0.68
343.1
116
22
13
.629
0
243
0
0
35
274
134
3
70
6
107
16
6.37
1.83
3.47
0.08
10.1
1.00
.728
3.51
7.18
5Joe Lake
J. Lake
0.79
239.1
60
15
9
.625
0
98
0
0
5
254
152
7
55
2
54
1,005
8
3.69
2.07
1.78
0.26
9.8
5.5
1.29
.293
5.72
9.55
6Tom Hughes
T. Hughes
0.85
244.0
86
16
11
.593
0
136
0
0
15
212
99
2
74
10
73
9
5.02
2.73
1.84
0.07
11.2
1.17
.476
3.65
7.82
7Eddie Cicotte
E. Cicotte
0.87
363.0
141
25
13
.658
0
156
0
0
24
297
128
3
106
9
105
6
3.87
2.63
1.47
0.07
7.7
1.11
.265
3.17
7.36
8George Mullin
G. Mullin
0.95
207.1
59
23
5
.821
0
82
0
0
8
175
84
2
79
7
51
2
3.56
3.43
1.04
0.09
23.7
1.23
1.055
3.65
7.60
9Mordecai Brown
M. Brown
0.97
426.2
149
39
20
.661
0
225
0
0
38
362
157
7
87
9
139
17
4.75
1.84
2.59
0.15
6.1
1.05
.325
3.31
7.64
10Buster Brown
B. Brown
0.98
220.1
69
4
7
.364
0
85
0
0
2
232
130
5
93
5
57
912
6
3.47
3.80
0.91
0.20
9.3
10.2
1.48
.314
5.31
9.48
11Hooks Wiltse
H. Wiltse
1.08
349.0
132
18
14
.563
0
178
0
0
30
333
152
8
90
7
108
9
4.59
2.32
1.98
0.21
6.8
1.21
.315
3.92
8.59
12Charley Hall
C. Hall
1.08
348.2
108
25
7
.781
0
164
0
0
12
293
166
7
159
11
89
1,450
6
4.23
4.10
1.03
0.18
11.3
11.0
1.30
.258
4.28
7.56
13Elwood Richie
E. Richie
1.14
323.2
104
14
10
.583
0
109
0
0
9
281
164
5
134
11
77
1,302
7
3.03
3.73
0.81
0.14
8.4
10.3
1.28
.265
4.56
7.81
14Frank Smith
F. Smith
1.20
277.1
99
17
11
.607
0
125
0
0
6
266
130
5
93
7
81
9
4.06
3.02
1.34
0.16
19.1
1.29
1.020
4.22
8.63
15Jack Warhop
J. Warhop
1.23
263.2
71
13
14
.481
0
103
0
0
7
220
103
4
68
17
62
1,054
2
3.52
2.32
1.51
0.14
9.8
6.5
1.09
.251
3.52
7.51
16Charlie Smith
C. Smith
1.26
243.1
64
13
10
.565
0
122
0
0
2
244
128
6
78
8
50
10
4.51
2.88
1.56
0.22
11.4
1.32
.506
4.73
9.02
17Christy Mathewson
C. Mathewson
1.30
214.1
79
30
8
.789
0
104
0
0
25
164
72
6
26
3
70
2
4.37
1.09
4.00
0.25
3.4
0.89
.252
3.02
6.89
18Tom Hughes
T. Hughes
1.35
206.1
75
17
3
.850
0
134
0
0
17
136
65
3
62
6
57
6
5.84
2.70
2.16
0.13
8.4
0.96
.250
2.84
5.93
19George McQuillan
G. McQuillan
1.45
260.1
100
8
12
.400
0
105
0
0
17
226
114
4
69
10
76
1,053
4
3.63
2.39
1.52
0.14
10.0
6.6
1.13
.257
3.94
7.81
20Lefty Leifield
L. Leifield
1.51
238.2
80
21
8
.724
0
106
0
0
7
232
100
3
72
13
58
992
3
4.00
2.72
1.47
0.11
10.7
7.3
1.27
.287
3.77
8.75
21Willie Mitchell
W. Mitchell
1.55
243.2
86
10
9
.526
0
155
0
0
4
200
116
2
87
25
66
988
13
5.73
3.21
1.78
0.07
15.7
8.8
1.18
.275
4.28
7.39
22Doc White
D. White
1.59
209.1
63
15
5
.750
0
96
0
0
4
193
88
2
45
9
53
6
4.13
1.93
2.13
0.09
9.1
1.14
.558
3.78
8.30
23Wilbur Cooper
W. Cooper
1.60
304.1
111
21
9
.700
0
145
0
0
14
262
54
87
4
88
11
81
1,241
9
4.29
2.60
1.65
0.12
11.7
7.1
1.15
.260
2.57
7.75
24Ray Fisher
R. Fisher
1.61
217.2
71
10
4
.714
0
117
0
0
7
211
101
3
56
3
48
886
9
4.84
2.32
2.09
0.12
13.2
6.3
1.23
.294
4.18
8.72
25Doc Crandall
D. Crandall
1.70
514.0
169
33
15
.688
0
231
0
0
25
474
223
16
129
15
147
2
4.04
2.26
1.79
0.28
7.4
1.17
.338
3.90
8.30
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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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