Jeremy Affeldt vs. Glenn Spencer — Career Comparison

Jeremy Affeldt
Gen XArizonaThrows LeftBats LeftNorth AmericaSan Francisco GiantsNational LeagueRelief Pitcher
Glenn Spencer
Greatest GenerationNew YorkThrows RightBats RightNorth AmericaPittsburgh PiratesNational LeagueStarting Pitcher

Glenn Spencer 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. Jeremy Affeldt posted stronger surface numbers — ERA 3.97 and WHIP 1.448 compared to 4.53 and 1.478 for Glenn Spencer. By the career numbers, Jeremy Affeldt had the better of this cross-role comparison — though era context would sharpen the verdict.

Pitching Stats for Jeremy Affeldt and Glenn Spencer

Jeremy Affeldt
Careerverified
Per 9 Inningsverified
14
14
Glenn Spencer
Career
Per 9 Innings
5
5
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
774
7.52
Glenn Spencer
Career
Per 9 Innings
139
2.34
Jeremy Affeldt
Career
Per 9 Innings
42
0.41
Glenn Spencer
Careerverified
Per 9 Inningsverified
44
0.74
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
43
0.42
Glenn Spencer
Career
Per 9 Innings
23
0.39
Jeremy Affeldt
Career
Per 9 Inningsverified
46
0.45
Glenn Spencer
Careerverified
Per 9 Innings
31
0.52
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
48.31
48.31
Glenn Spencer
Career
Per 9 Innings
42.59
42.59
Jeremy Affeldt
Career
Per 9 Innings
5.43
5.43
Glenn Spencer
Careerverified
Per 9 Inningsverified
31.65
31.65
Jeremy Affeldt
Career
Per 9 Innings
0
0
Glenn Spencer
Careerverified
Per 9 Inningsverified
22
0.37
Jeremy Affeldt
Career
Per 9 Innings
0
0
Glenn Spencer
Careerverified
Per 9 Inningsverified
2
0.03
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
28
0.27
Glenn Spencer
Career
Per 9 Innings
8
0.13
Jeremy Affeldt
Career
Per 9 Inningsverified
408
3.97
Glenn Spencer
Careerverified
Per 9 Innings
269
4.53
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
3.97
3.97
Glenn Spencer
Career
Per 9 Innings
4.53
4.53
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
4.02
4.02
Glenn Spencer
Career
Per 9 Innings
4.39
4.39
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
3.93
3.93
Glenn Spencer
Career
Per 9 Innings
4.49
4.49
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
0.256
0.256
Glenn Spencer
Career
Per 9 Innings
0.274
0.274
Jeremy Affeldt
Careerverified
Per 9 Innings
2778
27
Glenn Spencer
Career
Per 9 Innings
1602
27
Jeremy Affeldt
Careerverified
Per 9 Innings
926
9
Glenn Spencer
Career
Per 9 Innings
534
9
Jeremy Affeldt
Career
Per 9 Inningsverified
904
8.79
Glenn Spencer
Careerverified
Per 9 Innings
588
9.91
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
8.79
8.79
Glenn Spencer
Career
Per 9 Innings
9.91
9.91
Jeremy Affeldt
Career
Per 9 Innings
76
0.74
Glenn Spencer
Careerverified
Per 9 Inningsverified
37
0.62
Jeremy Affeldt
Career
Per 9 Innings
0.74
0.74
Glenn Spencer
Careerverified
Per 9 Inningsverified
0.62
0.62
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
0.1
0.1
Glenn Spencer
Career
Per 9 Innings
0.27
0.27
Jeremy Affeldt
Career
Per 9 Innings
396
3.85
Glenn Spencer
Careerverified
Per 9 Inningsverified
201
3.39
Jeremy Affeldt
Career
Per 9 Innings
41
0.4
Glenn Spencer
Careerverified
Per 9 Inningsverified
0
0
Jeremy Affeldt
Career
Per 9 Innings
3.85
3.85
Glenn Spencer
Careerverified
Per 9 Inningsverified
3.39
3.39
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
720
7
Glenn Spencer
Career
Per 9 Innings
162
2.73
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
7
7
Glenn Spencer
Career
Per 9 Innings
2.73
2.73
Jeremy Affeldt
Career
Per 9 Innings
0.93
0.93
Glenn Spencer
Careerverified
Per 9 Inningsverified
1.17
1.17
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
1.205
1.205
Glenn Spencer
Career
Per 9 Innings
0.68
0.68
Jeremy Affeldt
Career
Per 9 Innings
55
0.53
Glenn Spencer
Careerverified
Per 9 Inningsverified
21
0.35
Jeremy Affeldt
Career
Per 9 Innings
42
0.41
Glenn Spencer
Careerverified
Per 9 Inningsverified
11
0.19
Jeremy Affeldt
Career
Per 9 Innings
9
0.09
Glenn Spencer
Careerverified
Per 9 Inningsverified
2
0.03
Jeremy Affeldt
Careerverified
Per 9 Innings
4034
39.21
Glenn Spencer
Career
Per 9 Inningsverified
2358
39.74
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
162
1.57
Glenn Spencer
Career
Per 9 Innings
55
0.93
Jeremy Affeldt
Career
Per 9 Inningsverified
455
4.42
Glenn Spencer
Careerverified
Per 9 Innings
333
5.61
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
4.42
4.42
Glenn Spencer
Career
Per 9 Innings
5.61
5.61
Jeremy Affeldt
Career
Per 9 Innings
42
0.41
Glenn Spencer
Careerverified
Per 9 Inningsverified
0
0
Jeremy Affeldt
Career
Per 9 Innings
25
0.24
Glenn Spencer
Careerverified
Per 9 Inningsverified
0
0
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
102
0.99
Glenn Spencer
Career
Per 9 Innings
0
0
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
1.404
1.404
Glenn Spencer
Career
Per 9 Innings
1.478
1.478
Jeremy Affeldt
Careerverified
Per 9 Innings
3529
34.3
Glenn Spencer
Career
Per 9 Inningsverified
2146
36.17
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
0.59
0.59
Glenn Spencer
Career
Per 9 Innings
2.4
2.4
Jeremy Affeldt
Career
Per 9 Innings
0.303
0.303
Glenn Spencer
Careerverified
Per 9 Inningsverified
0.283
0.283
Jeremy Affeldt
Career
Per 9 Innings
39.21
39.21
Glenn Spencer
Careerverified
Per 9 Inningsverified
39.74
39.74

Fielding Stats for Jeremy Affeldt and Glenn Spencer

Jeremy Affeldt
Careerverified
Per 9 Inningsverified
14
14
Glenn Spencer
Career
Per 9 Innings
5
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
774
7.52
Glenn Spencer
Career
Per 9 Innings
139
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
42
0.41
Glenn Spencer
Career
Per 9 Innings
0
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
2778
27
Glenn Spencer
Career
Per 9 Innings
0
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
926
9
Glenn Spencer
Career
Per 9 Innings
0
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
45
0.44
Glenn Spencer
Career
Per 9 Innings
20
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
184
1.79
Glenn Spencer
Career
Per 9 Innings
99
Jeremy Affeldt
Career
Per 9 Innings
13
0.13
Glenn Spencer
Careerverified
Per 9 Inningsverified
9
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
242
2.35
Glenn Spencer
Career
Per 9 Innings
128
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
229
2.23
Glenn Spencer
Career
Per 9 Innings
119
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
94.63
94.63
Glenn Spencer
Career
Per 9 Innings
92.97
Jeremy Affeldt
Career
Per 9 Inningsverified
0.296
0.296
Glenn Spencer
Careerverified
Per 9 Innings
0.856
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
5.43
5.43
Glenn Spencer
Career
Per 9 Innings
0
Jeremy Affeldt
Careerverified
Per 9 Inningsverified
13
0.13
Glenn Spencer
Career
Per 9 Innings
7
Jeremy Affeldt
Career
Per 9 Innings
0
0
Glenn Spencer
Career
Per 9 Innings
0
Jeremy Affeldt
Career
Per 9 Innings
0
0
Glenn Spencer
Career
Per 9 Innings
0
Jeremy Affeldt
Career
Per 9 Innings
0
0
Glenn Spencer
Career
Per 9 Innings
0
Jeremy Affeldt
Career
Per 9 Innings
0
0
Glenn Spencer
Career
Per 9 Innings
0

Hitting Stats for Jeremy Affeldt and Glenn Spencer

Jeremy Affeldt
Careerverified
Per 600 PAverified
14
14
Glenn Spencer
Career
Per 600 PA
5
5
Jeremy Affeldt
Careerverified
Per 600 PAverified
774
24442.11
Glenn Spencer
Career
Per 600 PA
139
473.86
Jeremy Affeldt
Career
Per 600 PA
19
600
Glenn Spencer
Careerverified
Per 600 PA
176
600
Jeremy Affeldt
Career
Per 600 PAverified
17
536.84
Glenn Spencer
Careerverified
Per 600 PA
155
528.41
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.177
0.177
Glenn Spencer
Career
Per 600 PA
0.123
0.123
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.474
0.474
Glenn Spencer
Career
Per 600 PA
0.372
0.372
Jeremy Affeldt
Career
Per 600 PAverified
3
94.74
Glenn Spencer
Careerverified
Per 600 PA
19
64.77
Jeremy Affeldt
Career
Per 600 PAverified
3
94.74
Glenn Spencer
Careerverified
Per 600 PA
17
57.95
Jeremy Affeldt
Career
Per 600 PA
0
0
Glenn Spencer
Careerverified
Per 600 PAverified
1
3.41
Jeremy Affeldt
Career
Per 600 PA
0
0
Glenn Spencer
Careerverified
Per 600 PAverified
1
3.41
Jeremy Affeldt
Career
Per 600 PA
0
0
Glenn Spencer
Career
Per 600 PA
0
0
Jeremy Affeldt
Career
Per 600 PA
0
0
Glenn Spencer
Careerverified
Per 600 PAverified
2
6.82
Jeremy Affeldt
Career
Per 600 PA
0
0
Glenn Spencer
Careerverified
Per 600 PAverified
0.105
0.105
Jeremy Affeldt
Career
Per 600 PA
0
0
Glenn Spencer
Career
Per 600 PA
0
0
Jeremy Affeldt
Career
Per 600 PA
0
0
Glenn Spencer
Career
Per 600 PA
0
0
Jeremy Affeldt
Career
Per 600 PAverified
0.85
26.78
Glenn Spencer
Careerverified
Per 600 PA
3.31
11.28
Jeremy Affeldt
Career
Per 600 PAverified
3
94.74
Glenn Spencer
Careerverified
Per 600 PA
22
75
Jeremy Affeldt
Career
Per 600 PAverified
5
157.89
Glenn Spencer
Careerverified
Per 600 PA
26
88.64
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.263
0.263
Glenn Spencer
Career
Per 600 PA
0.161
0.161
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.177
0.177
Glenn Spencer
Career
Per 600 PA
0.142
0.142
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.44
0.44
Glenn Spencer
Career
Per 600 PA
0.302
0.302
Jeremy Affeldt
Career
Per 600 PA
0
0
Glenn Spencer
Careerverified
Per 600 PAverified
0.019
0.019
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.163
0.163
Glenn Spencer
Career
Per 600 PA
0.108
0.108
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.357
0.357
Glenn Spencer
Career
Per 600 PA
0.21
0.21
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.273
0.273
Glenn Spencer
Career
Per 600 PA
0.179
0.179
Jeremy Affeldt
Career
Per 600 PA
0
0
Glenn Spencer
Careerverified
Per 600 PAverified
6
20.45
Jeremy Affeldt
Career
Per 600 PAverified
2
63.16
Glenn Spencer
Careerverified
Per 600 PA
5
17.05
Jeremy Affeldt
Career
Per 600 PAverified
2
63.16
Glenn Spencer
Careerverified
Per 600 PA
11
37.5
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.98
30.85
Glenn Spencer
Career
Per 600 PA
-0.32
-1.1
Jeremy Affeldt
Career
Per 600 PA
0
0
Glenn Spencer
Career
Per 600 PA
0
0
Jeremy Affeldt
Career
Per 600 PAverified
2
63.16
Glenn Spencer
Careerverified
Per 600 PA
7
23.86
Jeremy Affeldt
Career
Per 600 PA
0
0
Glenn Spencer
Career
Per 600 PA
0
0
Jeremy Affeldt
Careerverified
Per 600 PA
6
189.47
Glenn Spencer
Career
Per 600 PAverified
49
167.05
Jeremy Affeldt
Career
Per 600 PA
3.17
3.17
Glenn Spencer
Careerverified
Per 600 PAverified
3.59
3.59
Jeremy Affeldt
Careerverified
Per 600 PAverified
0.33
0.33
Glenn Spencer
Career
Per 600 PA
0.14
0.14
Jeremy Affeldt
Career
Per 600 PA
0
0
Glenn Spencer
Careerverified
Per 600 PAverified
14
47.73
Jeremy Affeldt
Career
Per 600 PA
0
0
Glenn Spencer
Career
Per 600 PA
0
0
Jeremy Affeldt
Careerverified
Per 600 PAverified
0
0
Glenn Spencer
Career
Per 600 PA
2
6.82
Jeremy Affeldt
Career
Per 600 PA
0
0
Glenn Spencer
Career
Per 600 PA
0
0
Jeremy Affeldt
Career
Per 600 PA
0
0
Glenn Spencer
Career
Per 600 PA
0
0
Jeremy Affeldt
Career
Per 600 PA
0
0
Glenn Spencer
Career
Per 600 PA
0
0
Jeremy Affeldt
Career
Per 600 PA
Glenn Spencer
Career
Per 600 PA