Jack Aker vs. Roy Oswalt — Career Comparison

Jack Aker
Silent GenerationCaliforniaThrows RightBats RightNorth AmericaKansas City AthleticsAmerican LeagueRelief Pitcher
Roy Oswalt
Gen XMississippiThrows RightBats RightNorth AmericaHouston AstrosAmerican LeagueStarting PitcherAll-Star

Roy Oswalt 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. Roy Oswalt led in walk avoidance (BB%+ 143 vs 100), home run suppression (HR9+ 116 vs 76), and run prevention (ERA+ 125 vs 89). Role difference aside, Roy Oswalt holds a clear edge on every meaningful shared measure.

Pitching Stats for Jack Aker and Roy Oswalt

Jack Aker
Career
Per 9 Innings
11
11
Roy Oswalt
Careerverified
Per 9 Inningsverified
13
13
Jack Aker
Careerverified
Per 9 Inningsverified
495
5.97
Roy Oswalt
Career
Per 9 Innings
365
1.46
Jack Aker
Career
Per 9 Innings
0
0
Roy Oswalt
Careerverified
Per 9 Inningsverified
341
1.37
Jack Aker
Career
Per 9 Innings
47
0.57
Roy Oswalt
Careerverified
Per 9 Inningsverified
163
0.65
Jack Aker
Careerverified
Per 9 Innings
45
0.54
Roy Oswalt
Career
Per 9 Inningsverified
102
0.41
Jack Aker
Career
Per 9 Innings
51.09
51.09
Roy Oswalt
Careerverified
Per 9 Inningsverified
61.51
61.51
Jack Aker
Career
Per 9 Innings
0
0
Roy Oswalt
Careerverified
Per 9 Inningsverified
93.42
93.42
Jack Aker
Career
Per 9 Innings
0
0
Roy Oswalt
Careerverified
Per 9 Inningsverified
20
0.08
Jack Aker
Career
Per 9 Innings
0
0
Roy Oswalt
Careerverified
Per 9 Inningsverified
8
0.03
Jack Aker
Careerverified
Per 9 Inningsverified
123
1.48
Roy Oswalt
Career
Per 9 Innings
0
0
Jack Aker
Careerverified
Per 9 Inningsverified
272
3.28
Roy Oswalt
Career
Per 9 Innings
838
3.36
Jack Aker
Careerverified
Per 9 Inningsverified
3.28
3.28
Roy Oswalt
Career
Per 9 Innings
3.36
3.36
Jack Aker
Career
Per 9 Innings
3.45
3.45
Roy Oswalt
Careerverified
Per 9 Inningsverified
3.37
3.37
Jack Aker
Career
Per 9 Innings
4.29
4.29
Roy Oswalt
Careerverified
Per 9 Inningsverified
3.29
3.29
Jack Aker
Careerverified
Per 9 Inningsverified
0.244
0.244
Roy Oswalt
Career
Per 9 Innings
0.258
0.258
Jack Aker
Career
Per 9 Innings
2238
27
Roy Oswalt
Careerverified
Per 9 Innings
6736
27
Jack Aker
Career
Per 9 Innings
746
9
Roy Oswalt
Careerverified
Per 9 Innings
2245.1
9
Jack Aker
Careerverified
Per 9 Inningsverified
679
8.19
Roy Oswalt
Career
Per 9 Innings
2199
8.81
Jack Aker
Careerverified
Per 9 Inningsverified
8.19
8.19
Roy Oswalt
Career
Per 9 Innings
8.81
8.81
Jack Aker
Careerverified
Per 9 Inningsverified
64
0.77
Roy Oswalt
Career
Per 9 Innings
197
0.79
Jack Aker
Careerverified
Per 9 Inningsverified
0.77
0.77
Roy Oswalt
Career
Per 9 Innings
0.79
0.79
Jack Aker
Careerverified
Per 9 Inningsverified
0.13
0.13
Roy Oswalt
Career
Per 9 Innings
0.54
0.54
Jack Aker
Careerverified
Per 9 Innings
274
3.31
Roy Oswalt
Career
Per 9 Inningsverified
520
2.08
Jack Aker
Career
Per 9 Innings
68
0.82
Roy Oswalt
Careerverified
Per 9 Inningsverified
34
0.14
Jack Aker
Career
Per 9 Innings
3.31
3.31
Roy Oswalt
Careerverified
Per 9 Inningsverified
2.08
2.08
Jack Aker
Career
Per 9 Innings
404
4.87
Roy Oswalt
Careerverified
Per 9 Inningsverified
1852
7.42
Jack Aker
Career
Per 9 Innings
4.87
4.87
Roy Oswalt
Careerverified
Per 9 Inningsverified
7.42
7.42
Jack Aker
Career
Per 9 Innings
0.82
0.82
Roy Oswalt
Careerverified
Per 9 Inningsverified
5.07
5.07
Jack Aker
Career
Per 9 Innings
0.909
0.909
Roy Oswalt
Careerverified
Per 9 Inningsverified
1.056
1.056
Jack Aker
Careerverified
Per 9 Innings
13
0.16
Roy Oswalt
Career
Per 9 Inningsverified
30
0.12
Jack Aker
Careerverified
Per 9 Innings
40
0.48
Roy Oswalt
Career
Per 9 Inningsverified
80
0.32
Jack Aker
Careerverified
Per 9 Inningsverified
0
0
Roy Oswalt
Career
Per 9 Innings
7
0.03
Jack Aker
Career
Per 9 Inningsverified
3144
37.93
Roy Oswalt
Careerverified
Per 9 Innings
9301
37.28
Jack Aker
Careerverified
Per 9 Inningsverified
321
3.87
Roy Oswalt
Career
Per 9 Innings
7
0.03
Jack Aker
Careerverified
Per 9 Innings
312
3.76
Roy Oswalt
Career
Per 9 Inningsverified
897
3.6
Jack Aker
Career
Per 9 Innings
3.76
3.76
Roy Oswalt
Careerverified
Per 9 Inningsverified
3.6
3.6
Jack Aker
Careerverified
Per 9 Inningsverified
32
0.39
Roy Oswalt
Career
Per 9 Innings
105
0.42
Jack Aker
Careerverified
Per 9 Inningsverified
12
0.14
Roy Oswalt
Career
Per 9 Innings
57
0.23
Jack Aker
Career
Per 9 Innings
19
0.23
Roy Oswalt
Careerverified
Per 9 Inningsverified
201
0.81
Jack Aker
Career
Per 9 Innings
1.278
1.278
Roy Oswalt
Careerverified
Per 9 Inningsverified
1.211
1.211
Jack Aker
Career
Per 9 Innings
2786
33.61
Roy Oswalt
Careerverified
Per 9 Inningsverified
8539
34.23
Jack Aker
Careerverified
Per 9 Inningsverified
0.63
0.63
Roy Oswalt
Career
Per 9 Innings
2.46
2.46
Jack Aker
Careerverified
Per 9 Inningsverified
0.265
0.265
Roy Oswalt
Career
Per 9 Innings
0.309
0.309
Jack Aker
Careerverified
Per 9 Inningsverified
37.93
37.93
Roy Oswalt
Career
Per 9 Innings
37.28
37.28

Fielding Stats for Jack Aker and Roy Oswalt

Jack Aker
Career
Per 9 Innings
11
11
Roy Oswalt
Careerverified
Per 9 Inningsverified
13
13
Jack Aker
Careerverified
Per 9 Inningsverified
495
5.97
Roy Oswalt
Career
Per 9 Innings
366
1.47
Jack Aker
Career
Per 9 Innings
0
0
Roy Oswalt
Careerverified
Per 9 Inningsverified
342
1.37
Jack Aker
Career
Per 9 Innings
2240
27
Roy Oswalt
Careerverified
Per 9 Innings
6742
27
Jack Aker
Career
Per 9 Innings
746.2
9
Roy Oswalt
Careerverified
Per 9 Innings
2247.1
9
Jack Aker
Career
Per 9 Inningsverified
65
0.78
Roy Oswalt
Careerverified
Per 9 Innings
169
0.68
Jack Aker
Career
Per 9 Inningsverified
167
2.01
Roy Oswalt
Careerverified
Per 9 Innings
310
1.24
Jack Aker
Careerverified
Per 9 Innings
8
0.1
Roy Oswalt
Career
Per 9 Inningsverified
9
0.04
Jack Aker
Career
Per 9 Inningsverified
240
2.89
Roy Oswalt
Careerverified
Per 9 Innings
488
1.95
Jack Aker
Career
Per 9 Inningsverified
232
2.8
Roy Oswalt
Careerverified
Per 9 Innings
479
1.92
Jack Aker
Career
Per 9 Innings
96.67
96.67
Roy Oswalt
Careerverified
Per 9 Inningsverified
98.16
98.16
Jack Aker
Career
Per 9 Innings
0.469
0.469
Roy Oswalt
Careerverified
Per 9 Inningsverified
1.309
1.309
Jack Aker
Career
Per 9 Innings
0
0
Roy Oswalt
Careerverified
Per 9 Inningsverified
93.44
93.44
Jack Aker
Career
Per 9 Inningsverified
20
0.24
Roy Oswalt
Careerverified
Per 9 Innings
31
0.12
Jack Aker
Career
Per 9 Innings
0
0
Roy Oswalt
Career
Per 9 Innings
0
0
Jack Aker
Career
Per 9 Innings
0
0
Roy Oswalt
Career
Per 9 Innings
0
0
Jack Aker
Career
Per 9 Innings
0
0
Roy Oswalt
Career
Per 9 Innings
0
0
Jack Aker
Career
Per 9 Innings
0
0
Roy Oswalt
Career
Per 9 Innings
0
0

Hitting Stats for Jack Aker and Roy Oswalt

Jack Aker
Career
Per 600 PA
11
11
Roy Oswalt
Careerverified
Per 600 PAverified
13
13
Jack Aker
Careerverified
Per 600 PAverified
496
2861.54
Roy Oswalt
Career
Per 600 PA
370
278.89
Jack Aker
Career
Per 600 PA
104
600
Roy Oswalt
Careerverified
Per 600 PA
796
600
Jack Aker
Career
Per 600 PAverified
92
530.77
Roy Oswalt
Careerverified
Per 600 PA
657
495.23
Jack Aker
Career
Per 600 PA
0.076
0.076
Roy Oswalt
Careerverified
Per 600 PAverified
0.154
0.154
Jack Aker
Career
Per 600 PA
0.279
0.279
Roy Oswalt
Careerverified
Per 600 PAverified
0.461
0.461
Jack Aker
Career
Per 600 PA
7
40.38
Roy Oswalt
Careerverified
Per 600 PAverified
101
76.13
Jack Aker
Career
Per 600 PA
5
28.85
Roy Oswalt
Careerverified
Per 600 PAverified
93
70.1
Jack Aker
Career
Per 600 PAverified
2
11.54
Roy Oswalt
Careerverified
Per 600 PA
7
5.28
Jack Aker
Career
Per 600 PA
0
0
Roy Oswalt
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
0
0
Roy Oswalt
Careerverified
Per 600 PAverified
1
0.75
Jack Aker
Career
Per 600 PAverified
2
11.54
Roy Oswalt
Careerverified
Per 600 PA
8
6.03
Jack Aker
Careerverified
Per 600 PAverified
0.286
0.286
Roy Oswalt
Career
Per 600 PA
0.079
0.079
Jack Aker
Career
Per 600 PA
0
0
Roy Oswalt
Careerverified
Per 600 PAverified
0.002
0.002
Jack Aker
Career
Per 600 PA
0
0
Roy Oswalt
Careerverified
Per 600 PAverified
0.01
0.01
Jack Aker
Career
Per 600 PA
0.81
4.66
Roy Oswalt
Careerverified
Per 600 PAverified
20.7
15.6
Jack Aker
Career
Per 600 PA
9
51.92
Roy Oswalt
Careerverified
Per 600 PAverified
111
83.67
Jack Aker
Career
Per 600 PA
9
51.92
Roy Oswalt
Careerverified
Per 600 PAverified
133
100.25
Jack Aker
Career
Per 600 PA
0.096
0.096
Roy Oswalt
Careerverified
Per 600 PAverified
0.193
0.193
Jack Aker
Career
Per 600 PA
0.098
0.098
Roy Oswalt
Careerverified
Per 600 PAverified
0.169
0.169
Jack Aker
Career
Per 600 PA
0.194
0.194
Roy Oswalt
Careerverified
Per 600 PAverified
0.362
0.362
Jack Aker
Careerverified
Per 600 PAverified
0.022
0.022
Roy Oswalt
Career
Per 600 PA
0.015
0.015
Jack Aker
Career
Per 600 PA
0.068
0.068
Roy Oswalt
Careerverified
Per 600 PAverified
0.129
0.129
Jack Aker
Career
Per 600 PA
0.128
0.128
Roy Oswalt
Careerverified
Per 600 PAverified
0.254
0.254
Jack Aker
Career
Per 600 PA
0.171
0.171
Roy Oswalt
Careerverified
Per 600 PAverified
0.21
0.21
Jack Aker
Career
Per 600 PA
3
17.31
Roy Oswalt
Careerverified
Per 600 PAverified
30
22.61
Jack Aker
Career
Per 600 PA
4
23.08
Roy Oswalt
Careerverified
Per 600 PAverified
36
27.14
Jack Aker
Career
Per 600 PA
7
40.38
Roy Oswalt
Careerverified
Per 600 PAverified
65
48.99
Jack Aker
Career
Per 600 PA
-4.13
-23.83
Roy Oswalt
Careerverified
Per 600 PAverified
15.77
11.89
Jack Aker
Career
Per 600 PAverified
1
5.77
Roy Oswalt
Careerverified
Per 600 PA
5
3.77
Jack Aker
Career
Per 600 PA
1
5.77
Roy Oswalt
Careerverified
Per 600 PAverified
27
20.35
Jack Aker
Career
Per 600 PA
0
0
Roy Oswalt
Career
Per 600 PA
0
0
Jack Aker
Careerverified
Per 600 PA
51
294.23
Roy Oswalt
Career
Per 600 PAverified
181
136.43
Jack Aker
Career
Per 600 PA
2.04
2.04
Roy Oswalt
Careerverified
Per 600 PAverified
4.4
4.4
Jack Aker
Career
Per 600 PA
0.02
0.02
Roy Oswalt
Careerverified
Per 600 PAverified
0.15
0.15
Jack Aker
Career
Per 600 PA
10
57.69
Roy Oswalt
Careerverified
Per 600 PAverified
106
79.9
Jack Aker
Career
Per 600 PA
0
0
Roy Oswalt
Careerverified
Per 600 PAverified
1
0.75
Jack Aker
Careerverified
Per 600 PA
1
5.77
Roy Oswalt
Career
Per 600 PAverified
6
4.52
Jack Aker
Career
Per 600 PA
0
0
Roy Oswalt
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
0
0
Roy Oswalt
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
0
0
Roy Oswalt
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
Roy Oswalt
Career
Per 600 PA