lowest era by a relief pitcher with at least 400 innings pitched in a career

Mordecai Brown has the best career ERA by a relief pitcher when pitching at least 400 innings, with an ERA of 0.97.

NAMEERAIPGWLW%GSSOCGSHOSVHERRHRBBHBPGFIBBTBFWPK/9BB/9K/BBHR/9K%BB%WHIPBABIPRAH/9
1Mordecai 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
2Doc 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
3Red Ames
R. Ames
1.87
424.0
162
23
16
.590
0
240
0
0
32
384
180
3
160
8
118
1,745
36
5.09
3.40
1.50
0.06
13.8
9.2
1.28
.286
3.82
8.15
4Mariano Rivera
M. Rivera
2.06
1233.2
1,105
79
57
.581
0
1,135
0
0
652
934
282
305
63
266
44
952
41
4,870
13
8.28
1.94
4.27
0.46
23.3
5.5
0.97
.259
2.23
6.81
5Billy Wagner
B. Wagner
2.31
903.0
853
47
40
.540
0
1,196
0
0
422
601
232
262
82
300
33
703
26
3,600
43
11.92
2.99
3.99
0.82
33.2
8.3
1.00
.261
2.61
5.99
6Slim Sallee
S. Sallee
2.40
454.2
170
29
21
.580
0
159
0
0
35
434
197
13
105
8
125
1,869
4
3.15
2.08
1.51
0.26
8.5
5.6
1.19
.266
3.90
8.59
7Mike Adams
M. Adams
2.41
407.1
408
21
20
.512
0
409
0
0
4
316
109
122
33
126
6
60
12
1,653
7
9.04
2.78
3.25
0.73
24.7
7.6
1.09
.262
2.70
6.98
8Koji Uehara
K. Uehara
2.43
414.0
424
20
22
.476
0
524
0
0
95
279
112
120
53
66
4
207
8
1,583
9
11.39
1.43
7.94
1.15
33.1
4.2
0.83
.241
2.61
6.07
9Jonathan Papelbon
J. Papelbon
2.45
709.2
686
41
36
.532
0
793
0
0
368
557
193
221
55
175
32
585
17
2,867
13
10.06
2.22
4.53
0.70
27.7
6.1
1.03
.277
2.80
7.06
10Hoyt Wilhelm
H. Wilhelm
2.49
1872.1
1,018
124
103
.546
0
1,363
0
0
228
1,436
518
636
125
661
51
651
58
7,619
83
6.55
3.18
2.06
0.60
17.9
8.7
1.12
.242
3.06
6.90
11Joe Nathan
J. Nathan
2.50
761.0
758
52
29
.642
0
881
0
0
377
540
211
222
60
248
18
587
27
3,048
41
10.42
2.93
3.55
0.71
28.9
8.1
1.04
.261
2.63
6.39
12Aroldis Chapman
A. Chapman
2.52
821.1
863
60
47
.561
0
1,331
0
0
367
475
230
255
54
408
33
563
7
3,341
87
14.58
4.47
3.26
0.59
39.8
12.2
1.08
.278
2.79
5.20
13Jack Quinn
J. Quinn
2.55
708.2
313
54
32
.628
0
272
0
0
56
769
333
17
184
16
218
18
3.45
2.34
1.48
0.22
6.6
1.34
.328
4.23
9.77
14Kenley Jansen
K. Jansen
2.57
927.1
934
54
40
.574
0
1,278
0
0
475
610
265
284
88
282
32
700
20
3,680
21
12.40
2.74
4.53
0.85
34.7
7.7
0.96
.261
2.76
5.92
15Craig Kimbrel
C. Kimbrel
2.58
821.2
851
56
48
.538
0
1,282
0
0
440
492
236
263
75
346
40
656
11
3,306
70
14.04
3.79
3.71
0.82
38.8
10.5
1.02
.267
2.88
5.39
16Darren O'Day
D. O'Day
2.59
609.0
644
42
21
.667
0
637
0
0
21
458
175
189
64
172
50
155
24
2,461
3
9.41
2.54
3.70
0.95
25.9
7.0
1.03
.256
2.79
6.77
17John Wetteland
J. Wetteland
2.62
683.0
601
46
36
.561
0
730
0
0
330
537
199
230
63
221
12
523
27
2,793
28
9.62
2.91
3.30
0.83
26.1
7.9
1.11
.268
3.03
7.08
18Josh Hader
J. Hader
2.64
512.1
468
34
31
.523
0
829
0
0
226
282
150
164
65
198
24
321
6
2,019
19
14.56
3.48
4.19
1.14
41.1
9.8
0.94
.240
2.88
4.95
19Dave Smith
D. Smith
2.64
807.1
608
53
53
.500
0
548
0
0
216
696
237
277
34
281
13
432
64
3,345
28
6.11
3.13
1.95
0.38
16.4
8.4
1.21
.268
3.09
7.76
20Tom Henke
T. Henke
2.67
789.2
642
41
42
.494
0
861
0
0
311
607
234
252
64
255
9
548
29
3,194
30
9.81
2.91
3.38
0.73
27.0
8.0
1.09
.271
2.87
6.92
21Bob Lee
B. Lee
2.67
457.2
262
23
22
.511
0
296
0
0
64
369
136
158
29
183
5
152
34
1,898
11
5.82
3.60
1.62
0.57
15.6
9.6
1.21
.245
3.11
7.26
22Scott Downs
S. Downs
2.68
504.0
569
26
26
.500
0
400
0
0
27
423
150
165
33
182
16
113
28
2,090
21
7.14
3.25
2.20
0.59
19.1
8.7
1.20
.267
2.95
7.55
23Wilbur Wood
W. Wood
2.71
565.0
354
33
36
.478
0
322
0
0
57
502
170
209
38
172
12
198
44
2,331
21
5.13
2.74
1.87
0.61
13.8
7.4
1.19
.260
3.33
8.00
24Billy O'Dell
B. O'Dell
2.71
498.1
280
32
26
.552
0
347
0
0
50
433
150
183
36
180
16
137
33
2,092
14
6.27
3.25
1.93
0.65
16.6
8.6
1.23
.262
3.31
7.82
25Rollie Fingers
R. Fingers
2.73
1505.2
907
107
101
.514
0
1,183
0
0
341
1,276
456
502
97
429
29
709
105
6,104
37
7.07
2.56
2.76
0.58
19.4
7.0
1.13
.270
3.00
7.63
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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AVG

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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
91
.438
26.0
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

2 - 3

1

Final

3

MIL Brewers

3 - 2

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