Jeremy Affeldt vs. Brian Keyser — Career Comparison

Jeremy Affeldt
Gen XArizonaThrows LeftBats LeftNorth AmericaSan Francisco GiantsNational LeagueRelief Pitcher
Brian Keyser
Gen XCaliforniaThrows RightBats RightNorth AmericaChicago White SoxAmerican LeagueRelief Pitcher

When held to the same standard, Brian Keyser comes out ahead of Jeremy Affeldt in this reliever comparison. Brian Keyser led in home run suppression (HR9+ 187 vs 118), walk avoidance (BB%+ 132 vs 87), and skill-based run prevention (DICE+ 107 vs 89). Jeremy Affeldt held the edge in strikeout rate (K%+ 81 vs 56). The edge goes to Brian Keyser.

Pitching Stats for Jeremy Affeldt and Brian Keyser

Jeremy Affeldt
Careerverified
Per 9 Inningsverified
14
14
Brian Keyser
Career
Per 9 Innings
2
2
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
774
7.52
Brian Keyser
Career
Per 9 Innings
51
3.02
Jeremy Affeldt
Careerverified
Per 9 Innings
42
0.41
Brian Keyser
Career
Per 9 Inningsverified
10
0.59
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
43
0.42
Brian Keyser
Career
Per 9 Innings
6
0.36
Jeremy Affeldt
Career
Per 9 Inningsverified
46
0.45
Brian Keyser
Careerverified
Per 9 Innings
8
0.47
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
48.31
48.31
Brian Keyser
Career
Per 9 Innings
42.86
42.86
Jeremy Affeldt
Career
Per 9 Innings
5.43
5.43
Brian Keyser
Careerverified
Per 9 Inningsverified
19.61
19.61
Jeremy Affeldt
Career
Per 9 Innings
0
0
Brian Keyser
Career
Per 9 Innings
0
0
Jeremy Affeldt
Career
Per 9 Innings
0
0
Brian Keyser
Career
Per 9 Innings
0
0
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
28
0.27
Brian Keyser
Career
Per 9 Innings
1
0.06
Jeremy Affeldt
Career
Per 9 Inningsverified
408
3.97
Brian Keyser
Careerverified
Per 9 Innings
84
4.97
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
3.97
3.97
Brian Keyser
Career
Per 9 Innings
4.97
4.97
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
4.02
4.02
Brian Keyser
Career
Per 9 Innings
5.37
5.37
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
3.93
3.93
Brian Keyser
Career
Per 9 Innings
4.36
4.36
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
0.256
0.256
Brian Keyser
Career
Per 9 Innings
0.314
0.314
Jeremy Affeldt
Careerverified
Per 9 Innings
2778
27
Brian Keyser
Career
Per 9 Innings
456
27
Jeremy Affeldt
Careerverified
Per 9 Innings
926
9
Brian Keyser
Career
Per 9 Innings
152
9
Jeremy Affeldt
Career
Per 9 Inningsverified
904
8.79
Brian Keyser
Careerverified
Per 9 Innings
192
11.37
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
8.79
8.79
Brian Keyser
Career
Per 9 Innings
11.37
11.37
Jeremy Affeldt
Career
Per 9 Inningsverified
76
0.74
Brian Keyser
Careerverified
Per 9 Innings
13
0.77
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
0.74
0.74
Brian Keyser
Career
Per 9 Innings
0.77
0.77
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
0.1
0.1
Brian Keyser
Career
Per 9 Innings
0.25
0.25
Jeremy Affeldt
Career
Per 9 Innings
396
3.85
Brian Keyser
Careerverified
Per 9 Inningsverified
55
3.26
Jeremy Affeldt
Career
Per 9 Inningsverified
41
0.4
Brian Keyser
Careerverified
Per 9 Innings
9
0.53
Jeremy Affeldt
Career
Per 9 Innings
3.85
3.85
Brian Keyser
Careerverified
Per 9 Inningsverified
3.26
3.26
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
720
7
Brian Keyser
Career
Per 9 Innings
67
3.97
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
7
7
Brian Keyser
Career
Per 9 Innings
3.97
3.97
Jeremy Affeldt
Career
Per 9 Innings
0.93
0.93
Brian Keyser
Careerverified
Per 9 Inningsverified
1.31
1.31
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
1.205
1.205
Brian Keyser
Career
Per 9 Innings
0.803
0.803
Jeremy Affeldt
Career
Per 9 Innings
55
0.53
Brian Keyser
Careerverified
Per 9 Inningsverified
3
0.18
Jeremy Affeldt
Career
Per 9 Innings
42
0.41
Brian Keyser
Careerverified
Per 9 Inningsverified
2
0.12
Jeremy Affeldt
Career
Per 9 Innings
9
0.09
Brian Keyser
Careerverified
Per 9 Inningsverified
1
0.06
Jeremy Affeldt
Careerverified
Per 9 Innings
4034
39.21
Brian Keyser
Career
Per 9 Inningsverified
679
40.2
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
162
1.57
Brian Keyser
Career
Per 9 Innings
10
0.59
Jeremy Affeldt
Career
Per 9 Inningsverified
455
4.42
Brian Keyser
Careerverified
Per 9 Innings
88
5.21
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
4.42
4.42
Brian Keyser
Career
Per 9 Innings
5.21
5.21
Jeremy Affeldt
Career
Per 9 Innings
42
0.41
Brian Keyser
Careerverified
Per 9 Inningsverified
6
0.36
Jeremy Affeldt
Career
Per 9 Inningsverified
25
0.24
Brian Keyser
Careerverified
Per 9 Innings
5
0.3
Jeremy Affeldt
Careerverified
Per 9 Innings
102
0.99
Brian Keyser
Career
Per 9 Inningsverified
20
1.18
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
1.404
1.404
Brian Keyser
Career
Per 9 Innings
1.625
1.625
Jeremy Affeldt
Careerverified
Per 9 Innings
3529
34.3
Brian Keyser
Career
Per 9 Inningsverified
611
36.18
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
0.59
0.59
Brian Keyser
Career
Per 9 Innings
1.73
1.73
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
0.303
0.303
Brian Keyser
Career
Per 9 Innings
0.337
0.337
Jeremy Affeldt
Career
Per 9 Innings
39.21
39.21
Brian Keyser
Careerverified
Per 9 Inningsverified
40.2
40.2

Fielding Stats for Jeremy Affeldt and Brian Keyser

Jeremy Affeldt
Careerverified
Per 9 Inningsverified
14
14
Brian Keyser
Career
Per 9 Innings
2
2
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
774
7.52
Brian Keyser
Career
Per 9 Innings
51
3.02
Jeremy Affeldt
Careerverified
Per 9 Innings
42
0.41
Brian Keyser
Career
Per 9 Inningsverified
10
0.59
Jeremy Affeldt
Careerverified
Per 9 Innings
2778
27
Brian Keyser
Career
Per 9 Innings
456
27
Jeremy Affeldt
Careerverified
Per 9 Innings
926
9
Brian Keyser
Career
Per 9 Innings
152
9
Jeremy Affeldt
Careerverified
Per 9 Innings
45
0.44
Brian Keyser
Career
Per 9 Inningsverified
15
0.89
Jeremy Affeldt
Careerverified
Per 9 Innings
184
1.79
Brian Keyser
Career
Per 9 Inningsverified
33
1.95
Jeremy Affeldt
Career
Per 9 Innings
13
0.13
Brian Keyser
Careerverified
Per 9 Inningsverified
2
0.12
Jeremy Affeldt
Careerverified
Per 9 Innings
242
2.35
Brian Keyser
Career
Per 9 Inningsverified
50
2.96
Jeremy Affeldt
Careerverified
Per 9 Innings
229
2.23
Brian Keyser
Career
Per 9 Inningsverified
48
2.84
Jeremy Affeldt
Career
Per 9 Innings
94.63
94.63
Brian Keyser
Careerverified
Per 9 Inningsverified
96
96
Jeremy Affeldt
Career
Per 9 Innings
0.296
0.296
Brian Keyser
Careerverified
Per 9 Inningsverified
0.941
0.941
Jeremy Affeldt
Career
Per 9 Innings
5.43
5.43
Brian Keyser
Careerverified
Per 9 Inningsverified
19.61
19.61
Jeremy Affeldt
Careerverified
Per 9 Innings
13
0.13
Brian Keyser
Career
Per 9 Inningsverified
4
0.24
Jeremy Affeldt
Career
Per 9 Innings
0
0
Brian Keyser
Career
Per 9 Innings
0
0
Jeremy Affeldt
Career
Per 9 Innings
0
0
Brian Keyser
Career
Per 9 Innings
0
0
Jeremy Affeldt
Career
Per 9 Innings
0
0
Brian Keyser
Career
Per 9 Innings
0
0
Jeremy Affeldt
Career
Per 9 Innings
0
0
Brian Keyser
Career
Per 9 Innings
0
0

Hitting Stats for Jeremy Affeldt and Brian Keyser

Jeremy Affeldt
Careerverified
Per 600 PAverified
14
14
Brian Keyser
Career
Per 600 PA
2
Jeremy Affeldt
Careerverified
Per 600 PAverified
774
24442.11
Brian Keyser
Career
Per 600 PA
51
Jeremy Affeldt
Careerverified
Per 600 PAverified
19
600
Brian Keyser
Career
Per 600 PA
0
Jeremy Affeldt
Careerverified
Per 600 PAverified
17
536.84
Brian Keyser
Career
Per 600 PA
0
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.177
0.177
Brian Keyser
Career
Per 600 PA
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.474
0.474
Brian Keyser
Career
Per 600 PA
Jeremy Affeldt
Careerverified
Per 600 PAverified
3
94.74
Brian Keyser
Career
Per 600 PA
0
Jeremy Affeldt
Careerverified
Per 600 PAverified
3
94.74
Brian Keyser
Career
Per 600 PA
0
Jeremy Affeldt
Career
Per 600 PA
0
0
Brian Keyser
Career
Per 600 PA
0
Jeremy Affeldt
Career
Per 600 PA
0
0
Brian Keyser
Career
Per 600 PA
0
Jeremy Affeldt
Career
Per 600 PA
0
0
Brian Keyser
Career
Per 600 PA
0
Jeremy Affeldt
Career
Per 600 PA
0
0
Brian Keyser
Career
Per 600 PA
0
Jeremy Affeldt
Career
Per 600 PA
0
0
Brian Keyser
Career
Per 600 PA
Jeremy Affeldt
Career
Per 600 PA
0
0
Brian Keyser
Career
Per 600 PA
Jeremy Affeldt
Career
Per 600 PA
0
0
Brian Keyser
Career
Per 600 PA
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.85
26.78
Brian Keyser
Career
Per 600 PA
Jeremy Affeldt
Careerverified
Per 600 PAverified
3
94.74
Brian Keyser
Career
Per 600 PA
0
Jeremy Affeldt
Careerverified
Per 600 PAverified
5
157.89
Brian Keyser
Career
Per 600 PA
0
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.263
0.263
Brian Keyser
Career
Per 600 PA
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.177
0.177
Brian Keyser
Career
Per 600 PA
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.44
0.44
Brian Keyser
Career
Per 600 PA
Jeremy Affeldt
Career
Per 600 PA
0
0
Brian Keyser
Career
Per 600 PA
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.163
0.163
Brian Keyser
Career
Per 600 PA
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.357
0.357
Brian Keyser
Career
Per 600 PA
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.273
0.273
Brian Keyser
Career
Per 600 PA
Jeremy Affeldt
Career
Per 600 PA
0
0
Brian Keyser
Career
Per 600 PA
0
Jeremy Affeldt
Careerverified
Per 600 PAverified
2
63.16
Brian Keyser
Career
Per 600 PA
0
Jeremy Affeldt
Careerverified
Per 600 PAverified
2
63.16
Brian Keyser
Career
Per 600 PA
0
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.98
30.85
Brian Keyser
Career
Per 600 PA
Jeremy Affeldt
Career
Per 600 PA
0
0
Brian Keyser
Career
Per 600 PA
0
Jeremy Affeldt
Careerverified
Per 600 PAverified
2
63.16
Brian Keyser
Career
Per 600 PA
0
Jeremy Affeldt
Career
Per 600 PA
0
0
Brian Keyser
Career
Per 600 PA
0
Jeremy Affeldt
Career
Per 600 PA
6
189.47
Brian Keyser
Careerverified
Per 600 PAverified
0
Jeremy Affeldt
Careerverified
Per 600 PAverified
3.17
3.17
Brian Keyser
Career
Per 600 PA
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.33
0.33
Brian Keyser
Career
Per 600 PA
Jeremy Affeldt
Career
Per 600 PA
0
0
Brian Keyser
Career
Per 600 PA
0
Jeremy Affeldt
Career
Per 600 PA
0
0
Brian Keyser
Career
Per 600 PA
0
Jeremy Affeldt
Career
Per 600 PA
0
0
Brian Keyser
Career
Per 600 PA
0
Jeremy Affeldt
Career
Per 600 PA
0
0
Brian Keyser
Career
Per 600 PA
0
Jeremy Affeldt
Career
Per 600 PA
0
0
Brian Keyser
Career
Per 600 PA
0
Jeremy Affeldt
Career
Per 600 PA
0
0
Brian Keyser
Career
Per 600 PA
0
Jeremy Affeldt
Career
Per 600 PA
Brian Keyser
Career
Per 600 PA