Jack Aker vs. Andy O'Connor — Career Comparison

Jack Aker
Silent GenerationCaliforniaThrows RightBats RightNorth AmericaKansas City AthleticsAmerican LeagueRelief Pitcher
Andy O'Connor
Lost GenerationMassachusettsThrows RightBats RightNorth AmericaNew York YankeesAmerican LeagueStarting Pitcher

Andy O'Connor 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 10.13 and 2.750 for Andy O'Connor. 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 Andy O'Connor

Jack Aker
Careerverified
Per 9 Inningsverified
11
11
Andy O'Connor
Career
Per 9 Innings
1
1
Jack Aker
Careerverified
Per 9 Inningsverified
495
5.97
Andy O'Connor
Career
Per 9 Innings
1
1.13
Jack Aker
Career
Per 9 Innings
0
0
Andy O'Connor
Careerverified
Per 9 Inningsverified
1
1.13
Jack Aker
Careerverified
Per 9 Inningsverified
47
0.57
Andy O'Connor
Career
Per 9 Innings
0
0
Jack Aker
Career
Per 9 Inningsverified
45
0.54
Andy O'Connor
Careerverified
Per 9 Innings
1
1.13
Jack Aker
Careerverified
Per 9 Inningsverified
51.09
51.09
Andy O'Connor
Career
Per 9 Innings
0
0
Jack Aker
Career
Per 9 Innings
0
0
Andy O'Connor
Careerverified
Per 9 Inningsverified
100
100
Jack Aker
Career
Per 9 Innings
0
0
Andy O'Connor
Careerverified
Per 9 Inningsverified
1
1.13
Jack Aker
Career
Per 9 Innings
0
0
Andy O'Connor
Career
Per 9 Innings
0
0
Jack Aker
Careerverified
Per 9 Inningsverified
123
1.48
Andy O'Connor
Career
Per 9 Innings
0
0
Jack Aker
Career
Per 9 Inningsverified
272
3.28
Andy O'Connor
Careerverified
Per 9 Innings
9
10.13
Jack Aker
Careerverified
Per 9 Inningsverified
3.28
3.28
Andy O'Connor
Career
Per 9 Innings
10.13
10.13
Jack Aker
Careerverified
Per 9 Inningsverified
3.45
3.45
Andy O'Connor
Career
Per 9 Innings
13.41
13.41
Jack Aker
Careerverified
Per 9 Inningsverified
4.29
4.29
Andy O'Connor
Career
Per 9 Innings
5.5
5.5
Jack Aker
Careerverified
Per 9 Inningsverified
0.244
0.244
Andy O'Connor
Career
Per 9 Innings
0.429
0.429
Jack Aker
Careerverified
Per 9 Innings
2238
27
Andy O'Connor
Career
Per 9 Innings
24
27
Jack Aker
Careerverified
Per 9 Innings
746
9
Andy O'Connor
Career
Per 9 Innings
8
9
Jack Aker
Career
Per 9 Inningsverified
679
8.19
Andy O'Connor
Careerverified
Per 9 Innings
15
16.88
Jack Aker
Careerverified
Per 9 Inningsverified
8.19
8.19
Andy O'Connor
Career
Per 9 Innings
16.88
16.88
Jack Aker
Career
Per 9 Innings
64
0.77
Andy O'Connor
Careerverified
Per 9 Inningsverified
0
0
Jack Aker
Career
Per 9 Innings
0.77
0.77
Andy O'Connor
Careerverified
Per 9 Inningsverified
0
0
Jack Aker
Career
Per 9 Innings
0.13
0.13
Andy O'Connor
Careerverified
Per 9 Inningsverified
0
0
Jack Aker
Career
Per 9 Inningsverified
274
3.31
Andy O'Connor
Careerverified
Per 9 Innings
7
7.88
Jack Aker
Career
Per 9 Innings
68
0.82
Andy O'Connor
Careerverified
Per 9 Inningsverified
0
0
Jack Aker
Careerverified
Per 9 Inningsverified
3.31
3.31
Andy O'Connor
Career
Per 9 Innings
7.88
7.88
Jack Aker
Careerverified
Per 9 Innings
404
4.87
Andy O'Connor
Career
Per 9 Inningsverified
5
5.63
Jack Aker
Career
Per 9 Innings
4.87
4.87
Andy O'Connor
Careerverified
Per 9 Inningsverified
5.63
5.63
Jack Aker
Career
Per 9 Innings
0.82
0.82
Andy O'Connor
Careerverified
Per 9 Inningsverified
5
5
Jack Aker
Career
Per 9 Innings
0.909
0.909
Andy O'Connor
Careerverified
Per 9 Inningsverified
1.5
1.5
Jack Aker
Career
Per 9 Innings
13
0.16
Andy O'Connor
Careerverified
Per 9 Inningsverified
0
0
Jack Aker
Career
Per 9 Inningsverified
40
0.48
Andy O'Connor
Careerverified
Per 9 Innings
3
3.38
Jack Aker
Career
Per 9 Innings
0
0
Andy O'Connor
Career
Per 9 Innings
0
0
Jack Aker
Careerverified
Per 9 Innings
3144
37.93
Andy O'Connor
Career
Per 9 Inningsverified
45
50.63
Jack Aker
Careerverified
Per 9 Inningsverified
321
3.87
Andy O'Connor
Career
Per 9 Innings
0
0
Jack Aker
Career
Per 9 Inningsverified
312
3.76
Andy O'Connor
Careerverified
Per 9 Innings
11
12.38
Jack Aker
Careerverified
Per 9 Inningsverified
3.76
3.76
Andy O'Connor
Career
Per 9 Innings
12.38
12.38
Jack Aker
Career
Per 9 Innings
32
0.39
Andy O'Connor
Careerverified
Per 9 Inningsverified
0
0
Jack Aker
Career
Per 9 Innings
12
0.14
Andy O'Connor
Careerverified
Per 9 Inningsverified
0
0
Jack Aker
Careerverified
Per 9 Inningsverified
19
0.23
Andy O'Connor
Career
Per 9 Innings
0
0
Jack Aker
Careerverified
Per 9 Inningsverified
1.278
1.278
Andy O'Connor
Career
Per 9 Innings
2.75
2.75
Jack Aker
Careerverified
Per 9 Innings
2786
33.61
Andy O'Connor
Career
Per 9 Inningsverified
35
39.38
Jack Aker
Careerverified
Per 9 Inningsverified
0.63
0.63
Andy O'Connor
Career
Per 9 Innings
11
11
Jack Aker
Careerverified
Per 9 Inningsverified
0.265
0.265
Andy O'Connor
Career
Per 9 Innings
0.5
0.5
Jack Aker
Career
Per 9 Innings
37.93
37.93
Andy O'Connor
Careerverified
Per 9 Inningsverified
50.63
50.63

Fielding Stats for Jack Aker and Andy O'Connor

Jack Aker
Careerverified
Per 9 Inningsverified
11
11
Andy O'Connor
Career
Per 9 Innings
1
1
Jack Aker
Careerverified
Per 9 Inningsverified
495
5.97
Andy O'Connor
Career
Per 9 Innings
1
1.13
Jack Aker
Career
Per 9 Innings
0
0
Andy O'Connor
Careerverified
Per 9 Inningsverified
1
1.13
Jack Aker
Careerverified
Per 9 Innings
2240
27
Andy O'Connor
Career
Per 9 Innings
24
27
Jack Aker
Careerverified
Per 9 Innings
746.2
9
Andy O'Connor
Career
Per 9 Innings
8
9
Jack Aker
Careerverified
Per 9 Inningsverified
65
0.78
Andy O'Connor
Career
Per 9 Innings
0
0
Jack Aker
Careerverified
Per 9 Innings
167
2.01
Andy O'Connor
Career
Per 9 Inningsverified
2
2.25
Jack Aker
Career
Per 9 Inningsverified
8
0.1
Andy O'Connor
Careerverified
Per 9 Innings
1
1.13
Jack Aker
Careerverified
Per 9 Innings
240
2.89
Andy O'Connor
Career
Per 9 Inningsverified
3
3.38
Jack Aker
Careerverified
Per 9 Inningsverified
232
2.8
Andy O'Connor
Career
Per 9 Innings
2
2.25
Jack Aker
Careerverified
Per 9 Inningsverified
96.67
96.67
Andy O'Connor
Career
Per 9 Innings
66.67
66.67
Jack Aker
Career
Per 9 Innings
0.469
0.469
Andy O'Connor
Careerverified
Per 9 Inningsverified
2
2
Jack Aker
Career
Per 9 Innings
0
0
Andy O'Connor
Careerverified
Per 9 Inningsverified
100
100
Jack Aker
Careerverified
Per 9 Inningsverified
20
0.24
Andy O'Connor
Career
Per 9 Innings
0
0
Jack Aker
Career
Per 9 Innings
0
0
Andy O'Connor
Career
Per 9 Innings
0
0
Jack Aker
Career
Per 9 Innings
0
0
Andy O'Connor
Career
Per 9 Innings
0
0
Jack Aker
Career
Per 9 Innings
0
0
Andy O'Connor
Career
Per 9 Innings
0
0
Jack Aker
Career
Per 9 Innings
0
0
Andy O'Connor
Career
Per 9 Innings
0
0

Hitting Stats for Jack Aker and Andy O'Connor

Jack Aker
Careerverified
Per 600 PAverified
11
11
Andy O'Connor
Career
Per 600 PA
1
1
Jack Aker
Careerverified
Per 600 PAverified
496
2861.54
Andy O'Connor
Career
Per 600 PA
1
200
Jack Aker
Careerverified
Per 600 PA
104
600
Andy O'Connor
Career
Per 600 PA
3
600
Jack Aker
Careerverified
Per 600 PA
92
530.77
Andy O'Connor
Career
Per 600 PAverified
3
600
Jack Aker
Careerverified
Per 600 PAverified
0.076
0.076
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Careerverified
Per 600 PAverified
0.279
0.279
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Careerverified
Per 600 PAverified
7
40.38
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Careerverified
Per 600 PAverified
5
28.85
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Careerverified
Per 600 PAverified
2
11.54
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
0
0
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
0
0
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Careerverified
Per 600 PAverified
2
11.54
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Careerverified
Per 600 PAverified
0.286
0.286
Andy O'Connor
Career
Per 600 PA
Jack Aker
Career
Per 600 PA
0
0
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
0
0
Andy O'Connor
Career
Per 600 PA
Jack Aker
Careerverified
Per 600 PAverified
0.81
4.66
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Careerverified
Per 600 PAverified
9
51.92
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Careerverified
Per 600 PAverified
9
51.92
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Careerverified
Per 600 PAverified
0.096
0.096
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Careerverified
Per 600 PAverified
0.098
0.098
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Careerverified
Per 600 PAverified
0.194
0.194
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Careerverified
Per 600 PAverified
0.022
0.022
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Careerverified
Per 600 PAverified
0.068
0.068
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Careerverified
Per 600 PAverified
0.128
0.128
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Careerverified
Per 600 PAverified
0.171
0.171
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Careerverified
Per 600 PAverified
3
17.31
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Careerverified
Per 600 PAverified
4
23.08
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Careerverified
Per 600 PAverified
7
40.38
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PAverified
-4.13
-23.83
Andy O'Connor
Careerverified
Per 600 PA
-0.3
-60
Jack Aker
Careerverified
Per 600 PAverified
1
5.77
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Careerverified
Per 600 PAverified
1
5.77
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
0
0
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
51
294.23
Andy O'Connor
Careerverified
Per 600 PAverified
0
0
Jack Aker
Careerverified
Per 600 PAverified
2.04
2.04
Andy O'Connor
Career
Per 600 PA
Jack Aker
Careerverified
Per 600 PAverified
0.02
0.02
Andy O'Connor
Career
Per 600 PA
Jack Aker
Careerverified
Per 600 PAverified
10
57.69
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
0
0
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
1
5.77
Andy O'Connor
Careerverified
Per 600 PAverified
0
0
Jack Aker
Career
Per 600 PA
0
0
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
0
0
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
0
0
Andy O'Connor
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
Andy O'Connor
Career
Per 600 PA