Jeremy Affeldt vs. Brad Keller — Career Comparison

Jeremy Affeldt
Gen XArizonaThrows LeftBats LeftNorth AmericaSan Francisco GiantsNational LeagueRelief Pitcher
Brad Keller
MillenialGeorgiaThrows RightBats RightNorth AmericaChicago CubsNational LeagueStarting Pitcher

Brad Keller built a career as a starting pitcher and Jeremy Affeldt as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Brad Keller led in home run suppression (HR9+ 171 vs 118), skill-based run prevention (DICE+ 102 vs 89), and run prevention (ERA+ 102 vs 98). Jeremy Affeldt held the edge in walk avoidance (BB%+ 87 vs 80). Keeping the role difference in mind, the edge still goes to Brad Keller.

Pitching Stats for Jeremy Affeldt and Brad Keller

Jeremy Affeldt
Careerverified
Per 9 Inningsverified
14
14
Brad Keller
Career
Per 9 Innings
8
8
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
774
7.52
Brad Keller
Career
Per 9 Innings
234
2.67
Jeremy Affeldt
Career
Per 9 Innings
42
0.41
Brad Keller
Careerverified
Per 9 Inningsverified
117
1.33
Jeremy Affeldt
Careerverified
Per 9 Innings
43
0.42
Brad Keller
Career
Per 9 Inningsverified
42
0.48
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
46
0.45
Brad Keller
Career
Per 9 Innings
59
0.67
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
48.31
48.31
Brad Keller
Career
Per 9 Innings
41.58
41.58
Jeremy Affeldt
Career
Per 9 Innings
5.43
5.43
Brad Keller
Careerverified
Per 9 Inningsverified
50
50
Jeremy Affeldt
Career
Per 9 Innings
0
0
Brad Keller
Careerverified
Per 9 Inningsverified
2
0.02
Jeremy Affeldt
Career
Per 9 Innings
0
0
Brad Keller
Careerverified
Per 9 Inningsverified
1
0.01
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
28
0.27
Brad Keller
Career
Per 9 Innings
5
0.06
Jeremy Affeldt
Career
Per 9 Inningsverified
408
3.97
Brad Keller
Careerverified
Per 9 Innings
363
4.14
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
3.97
3.97
Brad Keller
Career
Per 9 Innings
4.14
4.14
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
4.02
4.02
Brad Keller
Career
Per 9 Innings
4.22
4.22
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
3.93
3.93
Brad Keller
Career
Per 9 Innings
4.1
4.1
Jeremy Affeldt
Career
Per 9 Innings
0.256
0.256
Brad Keller
Career
Per 9 Innings
0.256
0.256
Jeremy Affeldt
Careerverified
Per 9 Innings
2778
27
Brad Keller
Career
Per 9 Innings
2370
27
Jeremy Affeldt
Careerverified
Per 9 Innings
926
9
Brad Keller
Career
Per 9 Innings
790
9
Jeremy Affeldt
Career
Per 9 Innings
904
8.79
Brad Keller
Careerverified
Per 9 Innings
772
8.79
Jeremy Affeldt
Career
Per 9 Innings
8.79
8.79
Brad Keller
Career
Per 9 Innings
8.79
8.79
Jeremy Affeldt
Career
Per 9 Inningsverified
76
0.74
Brad Keller
Careerverified
Per 9 Innings
75
0.85
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
0.74
0.74
Brad Keller
Career
Per 9 Innings
0.85
0.85
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
0.1
0.1
Brad Keller
Career
Per 9 Innings
0.32
0.32
Jeremy Affeldt
Career
Per 9 Inningsverified
396
3.85
Brad Keller
Careerverified
Per 9 Innings
340
3.87
Jeremy Affeldt
Career
Per 9 Innings
41
0.4
Brad Keller
Careerverified
Per 9 Inningsverified
5
0.06
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
3.85
3.85
Brad Keller
Career
Per 9 Innings
3.87
3.87
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
720
7
Brad Keller
Career
Per 9 Innings
613
6.98
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
7
7
Brad Keller
Career
Per 9 Innings
6.98
6.98
Jeremy Affeldt
Career
Per 9 Innings
0.93
0.93
Brad Keller
Careerverified
Per 9 Inningsverified
2.62
2.62
Jeremy Affeldt
Career
Per 9 Innings
1.205
1.205
Brad Keller
Careerverified
Per 9 Inningsverified
1.206
1.206
Jeremy Affeldt
Career
Per 9 Innings
55
0.53
Brad Keller
Careerverified
Per 9 Inningsverified
45
0.51
Jeremy Affeldt
Career
Per 9 Innings
42
0.41
Brad Keller
Careerverified
Per 9 Inningsverified
33
0.38
Jeremy Affeldt
Career
Per 9 Innings
9
0.09
Brad Keller
Careerverified
Per 9 Inningsverified
1
0.01
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
4034
39.21
Brad Keller
Career
Per 9 Innings
3416
38.92
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
162
1.57
Brad Keller
Career
Per 9 Innings
28
0.32
Jeremy Affeldt
Career
Per 9 Inningsverified
455
4.42
Brad Keller
Careerverified
Per 9 Innings
393
4.48
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
4.42
4.42
Brad Keller
Career
Per 9 Innings
4.48
4.48
Jeremy Affeldt
Career
Per 9 Innings
42
0.41
Brad Keller
Careerverified
Per 9 Inningsverified
4
0.05
Jeremy Affeldt
Career
Per 9 Inningsverified
25
0.24
Brad Keller
Career
Per 9 Innings
25
0.28
Jeremy Affeldt
Careerverified
Per 9 Innings
102
0.99
Brad Keller
Career
Per 9 Inningsverified
98
1.12
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
1.404
1.404
Brad Keller
Career
Per 9 Innings
1.408
1.408
Jeremy Affeldt
Careerverified
Per 9 Innings
3529
34.3
Brad Keller
Career
Per 9 Inningsverified
3014
34.34
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
0.59
0.59
Brad Keller
Career
Per 9 Innings
1.68
1.68
Jeremy Affeldt
Career
Per 9 Innings
0.303
0.303
Brad Keller
Careerverified
Per 9 Inningsverified
0.3
0.3
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
39.21
39.21
Brad Keller
Career
Per 9 Innings
38.92
38.92

Fielding Stats for Jeremy Affeldt and Brad Keller

Jeremy Affeldt
Careerverified
Per 9 Inningsverified
14
14
Brad Keller
Career
Per 9 Innings
8
8
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
774
7.52
Brad Keller
Career
Per 9 Innings
234
2.67
Jeremy Affeldt
Career
Per 9 Innings
42
0.41
Brad Keller
Careerverified
Per 9 Inningsverified
117
1.33
Jeremy Affeldt
Careerverified
Per 9 Innings
2778
27
Brad Keller
Career
Per 9 Innings
2370
27
Jeremy Affeldt
Careerverified
Per 9 Innings
926
9
Brad Keller
Career
Per 9 Innings
790
9
Jeremy Affeldt
Careerverified
Per 9 Innings
45
0.44
Brad Keller
Career
Per 9 Inningsverified
42
0.48
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
184
1.79
Brad Keller
Career
Per 9 Innings
73
0.83
Jeremy Affeldt
Career
Per 9 Innings
13
0.13
Brad Keller
Careerverified
Per 9 Inningsverified
4
0.05
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
242
2.35
Brad Keller
Career
Per 9 Innings
119
1.36
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
229
2.23
Brad Keller
Career
Per 9 Innings
115
1.31
Jeremy Affeldt
Career
Per 9 Innings
94.63
94.63
Brad Keller
Careerverified
Per 9 Inningsverified
96.64
96.64
Jeremy Affeldt
Career
Per 9 Innings
0.296
0.296
Brad Keller
Careerverified
Per 9 Inningsverified
0.492
0.492
Jeremy Affeldt
Career
Per 9 Innings
5.43
5.43
Brad Keller
Careerverified
Per 9 Inningsverified
50
50
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
13
0.13
Brad Keller
Career
Per 9 Innings
6
0.07
Jeremy Affeldt
Career
Per 9 Innings
0
0
Brad Keller
Career
Per 9 Innings
0
0
Jeremy Affeldt
Career
Per 9 Innings
0
0
Brad Keller
Career
Per 9 Innings
0
0
Jeremy Affeldt
Career
Per 9 Innings
0
0
Brad Keller
Career
Per 9 Innings
0
0
Jeremy Affeldt
Career
Per 9 Innings
0
0
Brad Keller
Career
Per 9 Innings
0
0

Hitting Stats for Jeremy Affeldt and Brad Keller

Jeremy Affeldt
Careerverified
Per 600 PAverified
14
14
Brad Keller
Career
Per 600 PA
8
8
Jeremy Affeldt
Careerverified
Per 600 PAverified
774
24442.11
Brad Keller
Career
Per 600 PA
234
7020
Jeremy Affeldt
Career
Per 600 PA
19
600
Brad Keller
Careerverified
Per 600 PA
20
600
Jeremy Affeldt
Careerverified
Per 600 PAverified
17
536.84
Brad Keller
Career
Per 600 PA
16
480
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.177
0.177
Brad Keller
Career
Per 600 PA
0.125
0.125
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.474
0.474
Brad Keller
Career
Per 600 PA
0.425
0.425
Jeremy Affeldt
Careerverified
Per 600 PAverified
3
94.74
Brad Keller
Career
Per 600 PA
2
60
Jeremy Affeldt
Careerverified
Per 600 PAverified
3
94.74
Brad Keller
Career
Per 600 PA
2
60
Jeremy Affeldt
Career
Per 600 PA
0
0
Brad Keller
Career
Per 600 PA
0
0
Jeremy Affeldt
Career
Per 600 PA
0
0
Brad Keller
Career
Per 600 PA
0
0
Jeremy Affeldt
Career
Per 600 PA
0
0
Brad Keller
Career
Per 600 PA
0
0
Jeremy Affeldt
Career
Per 600 PA
0
0
Brad Keller
Career
Per 600 PA
0
0
Jeremy Affeldt
Career
Per 600 PA
0
0
Brad Keller
Career
Per 600 PA
0
0
Jeremy Affeldt
Career
Per 600 PA
0
0
Brad Keller
Career
Per 600 PA
0
0
Jeremy Affeldt
Career
Per 600 PA
0
0
Brad Keller
Career
Per 600 PA
0
0
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.85
26.78
Brad Keller
Career
Per 600 PA
0.35
10.6
Jeremy Affeldt
Careerverified
Per 600 PAverified
3
94.74
Brad Keller
Career
Per 600 PA
2
60
Jeremy Affeldt
Careerverified
Per 600 PAverified
5
157.89
Brad Keller
Career
Per 600 PA
3
90
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.263
0.263
Brad Keller
Career
Per 600 PA
0.177
0.177
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.177
0.177
Brad Keller
Career
Per 600 PA
0.125
0.125
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.44
0.44
Brad Keller
Career
Per 600 PA
0.302
0.302
Jeremy Affeldt
Career
Per 600 PA
0
0
Brad Keller
Career
Per 600 PA
0
0
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.163
0.163
Brad Keller
Career
Per 600 PA
0.111
0.111
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.357
0.357
Brad Keller
Career
Per 600 PA
0.214
0.214
Jeremy Affeldt
Career
Per 600 PA
0.273
0.273
Brad Keller
Careerverified
Per 600 PAverified
0.286
0.286
Jeremy Affeldt
Career
Per 600 PA
0
0
Brad Keller
Careerverified
Per 600 PAverified
1
30
Jeremy Affeldt
Careerverified
Per 600 PAverified
2
63.16
Brad Keller
Career
Per 600 PA
1
30
Jeremy Affeldt
Career
Per 600 PAverified
2
63.16
Brad Keller
Career
Per 600 PA
2
60
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.98
30.85
Brad Keller
Career
Per 600 PA
0.11
3.2
Jeremy Affeldt
Career
Per 600 PA
0
0
Brad Keller
Career
Per 600 PA
0
0
Jeremy Affeldt
Careerverified
Per 600 PAverified
2
63.16
Brad Keller
Career
Per 600 PA
1
30
Jeremy Affeldt
Career
Per 600 PA
0
0
Brad Keller
Career
Per 600 PA
0
0
Jeremy Affeldt
Careerverified
Per 600 PAverified
6
189.47
Brad Keller
Career
Per 600 PA
9
270
Jeremy Affeldt
Careerverified
Per 600 PAverified
3.17
3.17
Brad Keller
Career
Per 600 PA
2.22
2.22
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.33
0.33
Brad Keller
Career
Per 600 PA
0.11
0.11
Jeremy Affeldt
Career
Per 600 PA
0
0
Brad Keller
Careerverified
Per 600 PAverified
3
90
Jeremy Affeldt
Career
Per 600 PA
0
0
Brad Keller
Career
Per 600 PA
0
0
Jeremy Affeldt
Career
Per 600 PA
0
0
Brad Keller
Career
Per 600 PA
0
0
Jeremy Affeldt
Career
Per 600 PA
0
0
Brad Keller
Career
Per 600 PA
0
0
Jeremy Affeldt
Career
Per 600 PA
0
0
Brad Keller
Career
Per 600 PA
0
0
Jeremy Affeldt
Career
Per 600 PA
0
0
Brad Keller
Career
Per 600 PA
0
0
Jeremy Affeldt
Career
Per 600 PA
Brad Keller
Career
Per 600 PA