Jack Aker vs. Roy Witherup — Career Comparison

Jack Aker
Silent GenerationCaliforniaThrows RightBats RightNorth AmericaKansas City AthleticsAmerican LeagueRelief Pitcher
Roy Witherup
Lost GenerationPennsylvaniaThrows RightBats RightNorth AmericaWashington SenatorsAmerican LeagueStarting Pitcher

Roy Witherup built a career as a starting pitcher and Jack Aker as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jack Aker posted stronger surface numbers — ERA 3.28 and WHIP 1.369 compared to 4.44 and 1.454 for Roy Witherup. By the career numbers, Jack Aker had the better of this cross-role comparison — though era context would sharpen the verdict.

Pitching Stats for Jack Aker and Roy Witherup

Jack Aker
Careerverified
Per 9 Inningsverified
11
11
Roy Witherup
Career
Per 9 Innings
3
3
Jack Aker
Careerverified
Per 9 Inningsverified
495
5.97
Roy Witherup
Career
Per 9 Innings
26
1.44
Jack Aker
Career
Per 9 Innings
0
0
Roy Witherup
Careerverified
Per 9 Inningsverified
17
0.94
Jack Aker
Careerverified
Per 9 Inningsverified
47
0.57
Roy Witherup
Career
Per 9 Innings
3
0.17
Jack Aker
Career
Per 9 Inningsverified
45
0.54
Roy Witherup
Careerverified
Per 9 Innings
12
0.67
Jack Aker
Careerverified
Per 9 Inningsverified
51.09
51.09
Roy Witherup
Career
Per 9 Innings
20
20
Jack Aker
Career
Per 9 Innings
0
0
Roy Witherup
Careerverified
Per 9 Inningsverified
65.38
65.38
Jack Aker
Career
Per 9 Innings
0
0
Roy Witherup
Careerverified
Per 9 Inningsverified
12
0.67
Jack Aker
Career
Per 9 Innings
0
0
Roy Witherup
Career
Per 9 Innings
0
0
Jack Aker
Careerverified
Per 9 Inningsverified
123
1.48
Roy Witherup
Career
Per 9 Innings
0
0
Jack Aker
Career
Per 9 Inningsverified
272
3.28
Roy Witherup
Careerverified
Per 9 Innings
80
4.44
Jack Aker
Careerverified
Per 9 Inningsverified
3.28
3.28
Roy Witherup
Career
Per 9 Innings
4.44
4.44
Jack Aker
Careerverified
Per 9 Inningsverified
3.45
3.45
Roy Witherup
Career
Per 9 Innings
4.19
4.19
Jack Aker
Career
Per 9 Innings
4.29
4.29
Roy Witherup
Careerverified
Per 9 Inningsverified
3.27
3.27
Jack Aker
Careerverified
Per 9 Inningsverified
0.244
0.244
Roy Witherup
Career
Per 9 Innings
0.298
0.298
Jack Aker
Careerverified
Per 9 Innings
2238
27
Roy Witherup
Career
Per 9 Innings
487
27
Jack Aker
Careerverified
Per 9 Innings
746
9
Roy Witherup
Career
Per 9 Innings
162.1
9
Jack Aker
Career
Per 9 Inningsverified
679
8.19
Roy Witherup
Careerverified
Per 9 Innings
189
10.48
Jack Aker
Careerverified
Per 9 Inningsverified
8.19
8.19
Roy Witherup
Career
Per 9 Innings
10.48
10.48
Jack Aker
Career
Per 9 Innings
64
0.77
Roy Witherup
Careerverified
Per 9 Inningsverified
3
0.17
Jack Aker
Career
Per 9 Innings
0.77
0.77
Roy Witherup
Careerverified
Per 9 Inningsverified
0.17
0.17
Jack Aker
Career
Per 9 Innings
0.13
0.13
Roy Witherup
Careerverified
Per 9 Inningsverified
0.12
0.12
Jack Aker
Career
Per 9 Innings
274
3.31
Roy Witherup
Careerverified
Per 9 Inningsverified
47
2.61
Jack Aker
Career
Per 9 Innings
68
0.82
Roy Witherup
Careerverified
Per 9 Inningsverified
0
0
Jack Aker
Career
Per 9 Innings
3.31
3.31
Roy Witherup
Careerverified
Per 9 Inningsverified
2.61
2.61
Jack Aker
Careerverified
Per 9 Inningsverified
404
4.87
Roy Witherup
Career
Per 9 Innings
71
3.94
Jack Aker
Careerverified
Per 9 Inningsverified
4.87
4.87
Roy Witherup
Career
Per 9 Innings
3.94
3.94
Jack Aker
Career
Per 9 Innings
0.82
0.82
Roy Witherup
Careerverified
Per 9 Inningsverified
2.73
2.73
Jack Aker
Careerverified
Per 9 Inningsverified
0.909
0.909
Roy Witherup
Career
Per 9 Innings
0.727
0.727
Jack Aker
Career
Per 9 Inningsverified
13
0.16
Roy Witherup
Careerverified
Per 9 Innings
3
0.17
Jack Aker
Career
Per 9 Innings
40
0.48
Roy Witherup
Careerverified
Per 9 Inningsverified
2
0.11
Jack Aker
Career
Per 9 Innings
0
0
Roy Witherup
Career
Per 9 Innings
0
0
Jack Aker
Careerverified
Per 9 Inningsverified
3144
37.93
Roy Witherup
Career
Per 9 Innings
683
37.87
Jack Aker
Careerverified
Per 9 Inningsverified
321
3.87
Roy Witherup
Career
Per 9 Innings
6
0.33
Jack Aker
Career
Per 9 Inningsverified
312
3.76
Roy Witherup
Careerverified
Per 9 Innings
99
5.49
Jack Aker
Careerverified
Per 9 Inningsverified
3.76
3.76
Roy Witherup
Career
Per 9 Innings
5.49
5.49
Jack Aker
Career
Per 9 Innings
32
0.39
Roy Witherup
Careerverified
Per 9 Inningsverified
0
0
Jack Aker
Career
Per 9 Innings
12
0.14
Roy Witherup
Careerverified
Per 9 Inningsverified
0
0
Jack Aker
Careerverified
Per 9 Inningsverified
19
0.23
Roy Witherup
Career
Per 9 Innings
0
0
Jack Aker
Careerverified
Per 9 Inningsverified
1.278
1.278
Roy Witherup
Career
Per 9 Innings
1.454
1.454
Jack Aker
Careerverified
Per 9 Innings
2786
33.61
Roy Witherup
Career
Per 9 Inningsverified
634
35.15
Jack Aker
Careerverified
Per 9 Inningsverified
0.63
0.63
Roy Witherup
Career
Per 9 Innings
3.81
3.81
Jack Aker
Careerverified
Per 9 Inningsverified
0.265
0.265
Roy Witherup
Career
Per 9 Innings
0.332
0.332
Jack Aker
Careerverified
Per 9 Inningsverified
37.93
37.93
Roy Witherup
Career
Per 9 Innings
37.87
37.87

Fielding Stats for Jack Aker and Roy Witherup

Jack Aker
Careerverified
Per 9 Inningsverified
11
11
Roy Witherup
Career
Per 9 Innings
3
3
Jack Aker
Careerverified
Per 9 Inningsverified
495
5.97
Roy Witherup
Career
Per 9 Innings
26
1.44
Jack Aker
Career
Per 9 Innings
0
0
Roy Witherup
Careerverified
Per 9 Inningsverified
17
0.94
Jack Aker
Careerverified
Per 9 Innings
2240
27
Roy Witherup
Career
Per 9 Innings
486
27
Jack Aker
Careerverified
Per 9 Innings
746.2
9
Roy Witherup
Career
Per 9 Innings
162
9
Jack Aker
Careerverified
Per 9 Inningsverified
65
0.78
Roy Witherup
Career
Per 9 Innings
1
0.06
Jack Aker
Careerverified
Per 9 Innings
167
2.01
Roy Witherup
Career
Per 9 Inningsverified
42
2.33
Jack Aker
Career
Per 9 Inningsverified
8
0.1
Roy Witherup
Careerverified
Per 9 Innings
4
0.22
Jack Aker
Careerverified
Per 9 Inningsverified
240
2.89
Roy Witherup
Career
Per 9 Innings
47
2.61
Jack Aker
Careerverified
Per 9 Inningsverified
232
2.8
Roy Witherup
Career
Per 9 Innings
43
2.39
Jack Aker
Careerverified
Per 9 Inningsverified
96.67
96.67
Roy Witherup
Career
Per 9 Innings
91.49
91.49
Jack Aker
Career
Per 9 Innings
0.469
0.469
Roy Witherup
Careerverified
Per 9 Inningsverified
1.654
1.654
Jack Aker
Career
Per 9 Innings
0
0
Roy Witherup
Careerverified
Per 9 Inningsverified
65.38
65.38
Jack Aker
Careerverified
Per 9 Inningsverified
20
0.24
Roy Witherup
Career
Per 9 Innings
1
0.06
Jack Aker
Career
Per 9 Innings
0
0
Roy Witherup
Career
Per 9 Innings
0
0
Jack Aker
Career
Per 9 Innings
0
0
Roy Witherup
Career
Per 9 Innings
0
0
Jack Aker
Career
Per 9 Innings
0
0
Roy Witherup
Career
Per 9 Innings
0
0
Jack Aker
Career
Per 9 Innings
0
0
Roy Witherup
Career
Per 9 Innings
0
0

Hitting Stats for Jack Aker and Roy Witherup

Jack Aker
Careerverified
Per 600 PAverified
11
11
Roy Witherup
Career
Per 600 PA
3
3
Jack Aker
Careerverified
Per 600 PAverified
496
2861.54
Roy Witherup
Career
Per 600 PA
26
294.34
Jack Aker
Careerverified
Per 600 PA
104
600
Roy Witherup
Career
Per 600 PA
53
600
Jack Aker
Careerverified
Per 600 PA
92
530.77
Roy Witherup
Career
Per 600 PAverified
52
588.68
Jack Aker
Career
Per 600 PA
0.076
0.076
Roy Witherup
Careerverified
Per 600 PAverified
0.115
0.115
Jack Aker
Careerverified
Per 600 PAverified
0.279
0.279
Roy Witherup
Career
Per 600 PA
0.245
0.245
Jack Aker
Careerverified
Per 600 PA
7
40.38
Roy Witherup
Career
Per 600 PAverified
6
67.92
Jack Aker
Career
Per 600 PA
5
28.85
Roy Witherup
Careerverified
Per 600 PAverified
6
67.92
Jack Aker
Careerverified
Per 600 PAverified
2
11.54
Roy Witherup
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
0
0
Roy Witherup
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
0
0
Roy Witherup
Career
Per 600 PA
0
0
Jack Aker
Careerverified
Per 600 PAverified
2
11.54
Roy Witherup
Career
Per 600 PA
0
0
Jack Aker
Careerverified
Per 600 PAverified
0.286
0.286
Roy Witherup
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
0
0
Roy Witherup
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
0
0
Roy Witherup
Career
Per 600 PA
0
0
Jack Aker
Careerverified
Per 600 PA
0.81
4.66
Roy Witherup
Career
Per 600 PAverified
0.62
6.99
Jack Aker
Careerverified
Per 600 PA
9
51.92
Roy Witherup
Career
Per 600 PAverified
6
67.92
Jack Aker
Careerverified
Per 600 PA
9
51.92
Roy Witherup
Career
Per 600 PAverified
6
67.92
Jack Aker
Career
Per 600 PA
0.096
0.096
Roy Witherup
Careerverified
Per 600 PAverified
0.115
0.115
Jack Aker
Career
Per 600 PA
0.098
0.098
Roy Witherup
Careerverified
Per 600 PAverified
0.115
0.115
Jack Aker
Career
Per 600 PA
0.194
0.194
Roy Witherup
Careerverified
Per 600 PAverified
0.231
0.231
Jack Aker
Careerverified
Per 600 PAverified
0.022
0.022
Roy Witherup
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
0.068
0.068
Roy Witherup
Careerverified
Per 600 PAverified
0.081
0.081
Jack Aker
Career
Per 600 PA
0.128
0.128
Roy Witherup
Careerverified
Per 600 PAverified
0.13
0.13
Jack Aker
Careerverified
Per 600 PAverified
0.171
0.171
Roy Witherup
Career
Per 600 PA
0.154
0.154
Jack Aker
Careerverified
Per 600 PAverified
3
17.31
Roy Witherup
Career
Per 600 PA
1
11.32
Jack Aker
Careerverified
Per 600 PAverified
4
23.08
Roy Witherup
Career
Per 600 PA
2
22.64
Jack Aker
Careerverified
Per 600 PAverified
7
40.38
Roy Witherup
Career
Per 600 PA
3
33.96
Jack Aker
Career
Per 600 PA
-4.13
-23.83
Roy Witherup
Careerverified
Per 600 PAverified
-1.21
-13.74
Jack Aker
Careerverified
Per 600 PAverified
1
5.77
Roy Witherup
Career
Per 600 PA
0
0
Jack Aker
Careerverified
Per 600 PAverified
1
5.77
Roy Witherup
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
0
0
Roy Witherup
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
51
294.23
Roy Witherup
Careerverified
Per 600 PAverified
13
147.17
Jack Aker
Career
Per 600 PA
2.04
2.04
Roy Witherup
Careerverified
Per 600 PAverified
4.08
4.08
Jack Aker
Careerverified
Per 600 PAverified
0.02
0.02
Roy Witherup
Career
Per 600 PA
0
0
Jack Aker
Careerverified
Per 600 PAverified
10
57.69
Roy Witherup
Career
Per 600 PA
1
11.32
Jack Aker
Career
Per 600 PA
0
0
Roy Witherup
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
1
5.77
Roy Witherup
Careerverified
Per 600 PAverified
0
0
Jack Aker
Career
Per 600 PA
0
0
Roy Witherup
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
0
0
Roy Witherup
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
0
0
Roy Witherup
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
Roy Witherup
Career
Per 600 PA