Jack Aker vs. Grant Jackson — Career Comparison

Jack Aker
Silent GenerationCaliforniaThrows RightBats RightNorth AmericaKansas City AthleticsAmerican LeagueRelief Pitcher
Grant Jackson
Silent GenerationOhioThrows LeftBats SwitchNorth AmericaPittsburgh PiratesNational LeagueRelief PitcherAll-Star

Jack Aker and Grant Jackson are about as close as two relievers get — the gap between them is negligible across the key measures. Their run-prevention numbers were nearly identical — ERA+ of 89 for Jack Aker and 92 for Grant Jackson, with skill-based marks of DICE+ 88 and 84 respectively. If forced to pick, Jack Aker gets the slight nod, but this is a genuinely even pairing.

Pitching Stats for Jack Aker and Grant Jackson

Jack Aker
Career
Per 9 Innings
11
11
Grant Jackson
Careerverified
Per 9 Inningsverified
18
18
Jack Aker
Career
Per 9 Inningsverified
495
5.97
Grant Jackson
Careerverified
Per 9 Innings
692
4.58
Jack Aker
Career
Per 9 Innings
0
0
Grant Jackson
Careerverified
Per 9 Inningsverified
83
0.55
Jack Aker
Career
Per 9 Innings
47
0.57
Grant Jackson
Careerverified
Per 9 Innings
86
0.57
Jack Aker
Careerverified
Per 9 Innings
45
0.54
Grant Jackson
Career
Per 9 Inningsverified
75
0.5
Jack Aker
Career
Per 9 Innings
51.09
51.09
Grant Jackson
Careerverified
Per 9 Inningsverified
53.42
53.42
Jack Aker
Career
Per 9 Innings
0
0
Grant Jackson
Careerverified
Per 9 Inningsverified
11.99
11.99
Jack Aker
Career
Per 9 Innings
0
0
Grant Jackson
Careerverified
Per 9 Inningsverified
16
0.11
Jack Aker
Career
Per 9 Innings
0
0
Grant Jackson
Careerverified
Per 9 Inningsverified
5
0.03
Jack Aker
Careerverified
Per 9 Inningsverified
123
1.48
Grant Jackson
Career
Per 9 Innings
79
0.52
Jack Aker
Careerverified
Per 9 Inningsverified
272
3.28
Grant Jackson
Career
Per 9 Innings
523
3.46
Jack Aker
Careerverified
Per 9 Inningsverified
3.28
3.28
Grant Jackson
Career
Per 9 Innings
3.46
3.46
Jack Aker
Careerverified
Per 9 Inningsverified
3.45
3.45
Grant Jackson
Career
Per 9 Innings
3.48
3.48
Jack Aker
Career
Per 9 Innings
4.29
4.29
Grant Jackson
Careerverified
Per 9 Inningsverified
3.91
3.91
Jack Aker
Careerverified
Per 9 Inningsverified
0.244
0.244
Grant Jackson
Career
Per 9 Innings
0.249
0.249
Jack Aker
Career
Per 9 Innings
2238
27
Grant Jackson
Careerverified
Per 9 Innings
4076
27
Jack Aker
Career
Per 9 Innings
746
9
Grant Jackson
Careerverified
Per 9 Innings
1358.2
9
Jack Aker
Careerverified
Per 9 Inningsverified
679
8.19
Grant Jackson
Career
Per 9 Innings
1272
8.43
Jack Aker
Careerverified
Per 9 Inningsverified
8.19
8.19
Grant Jackson
Career
Per 9 Innings
8.43
8.43
Jack Aker
Careerverified
Per 9 Innings
64
0.77
Grant Jackson
Career
Per 9 Inningsverified
109
0.72
Jack Aker
Career
Per 9 Innings
0.77
0.77
Grant Jackson
Careerverified
Per 9 Inningsverified
0.72
0.72
Jack Aker
Careerverified
Per 9 Inningsverified
0.13
0.13
Grant Jackson
Career
Per 9 Innings
0.16
0.16
Jack Aker
Careerverified
Per 9 Inningsverified
274
3.31
Grant Jackson
Career
Per 9 Innings
511
3.38
Jack Aker
Careerverified
Per 9 Innings
68
0.82
Grant Jackson
Career
Per 9 Inningsverified
71
0.47
Jack Aker
Careerverified
Per 9 Inningsverified
3.31
3.31
Grant Jackson
Career
Per 9 Innings
3.38
3.38
Jack Aker
Career
Per 9 Innings
404
4.87
Grant Jackson
Careerverified
Per 9 Inningsverified
889
5.89
Jack Aker
Career
Per 9 Innings
4.87
4.87
Grant Jackson
Careerverified
Per 9 Inningsverified
5.89
5.89
Jack Aker
Career
Per 9 Innings
0.82
0.82
Grant Jackson
Careerverified
Per 9 Inningsverified
1.28
1.28
Jack Aker
Career
Per 9 Innings
0.909
0.909
Grant Jackson
Careerverified
Per 9 Inningsverified
1.03
1.03
Jack Aker
Careerverified
Per 9 Inningsverified
13
0.16
Grant Jackson
Career
Per 9 Innings
44
0.29
Jack Aker
Career
Per 9 Innings
40
0.48
Grant Jackson
Careerverified
Per 9 Inningsverified
21
0.14
Jack Aker
Careerverified
Per 9 Inningsverified
0
0
Grant Jackson
Career
Per 9 Innings
9
0.06
Jack Aker
Career
Per 9 Innings
3144
37.93
Grant Jackson
Careerverified
Per 9 Inningsverified
5749
38.08
Jack Aker
Careerverified
Per 9 Inningsverified
321
3.87
Grant Jackson
Career
Per 9 Innings
291
1.93
Jack Aker
Careerverified
Per 9 Inningsverified
312
3.76
Grant Jackson
Career
Per 9 Innings
589
3.9
Jack Aker
Careerverified
Per 9 Inningsverified
3.76
3.76
Grant Jackson
Career
Per 9 Innings
3.9
3.9
Jack Aker
Careerverified
Per 9 Inningsverified
32
0.39
Grant Jackson
Career
Per 9 Innings
62
0.41
Jack Aker
Careerverified
Per 9 Inningsverified
12
0.14
Grant Jackson
Career
Per 9 Innings
43
0.28
Jack Aker
Career
Per 9 Innings
19
0.23
Grant Jackson
Careerverified
Per 9 Inningsverified
52
0.34
Jack Aker
Careerverified
Per 9 Inningsverified
1.278
1.278
Grant Jackson
Career
Per 9 Innings
1.312
1.312
Jack Aker
Career
Per 9 Innings
2786
33.61
Grant Jackson
Careerverified
Per 9 Inningsverified
5112
33.86
Jack Aker
Careerverified
Per 9 Inningsverified
0.63
0.63
Grant Jackson
Career
Per 9 Innings
0.85
0.85
Jack Aker
Careerverified
Per 9 Inningsverified
0.265
0.265
Grant Jackson
Career
Per 9 Innings
0.283
0.283
Jack Aker
Career
Per 9 Innings
37.93
37.93
Grant Jackson
Careerverified
Per 9 Inningsverified
38.08
38.08

Fielding Stats for Jack Aker and Grant Jackson

Jack Aker
Career
Per 9 Innings
11
11
Grant Jackson
Careerverified
Per 9 Inningsverified
18
18
Jack Aker
Career
Per 9 Inningsverified
495
5.97
Grant Jackson
Careerverified
Per 9 Innings
692
4.58
Jack Aker
Career
Per 9 Innings
0
0
Grant Jackson
Careerverified
Per 9 Inningsverified
83
0.55
Jack Aker
Career
Per 9 Innings
2240
27
Grant Jackson
Careerverified
Per 9 Innings
4078
27
Jack Aker
Career
Per 9 Innings
746.2
9
Grant Jackson
Careerverified
Per 9 Innings
1359.1
9
Jack Aker
Careerverified
Per 9 Inningsverified
65
0.78
Grant Jackson
Career
Per 9 Innings
55
0.36
Jack Aker
Career
Per 9 Inningsverified
167
2.01
Grant Jackson
Careerverified
Per 9 Innings
170
1.13
Jack Aker
Careerverified
Per 9 Inningsverified
8
0.1
Grant Jackson
Career
Per 9 Innings
16
0.11
Jack Aker
Career
Per 9 Inningsverified
240
2.89
Grant Jackson
Careerverified
Per 9 Innings
241
1.6
Jack Aker
Careerverified
Per 9 Inningsverified
232
2.8
Grant Jackson
Career
Per 9 Innings
225
1.49
Jack Aker
Careerverified
Per 9 Inningsverified
96.67
96.67
Grant Jackson
Career
Per 9 Innings
93.36
93.36
Jack Aker
Careerverified
Per 9 Inningsverified
0.469
0.469
Grant Jackson
Career
Per 9 Innings
0.325
0.325
Jack Aker
Career
Per 9 Innings
0
0
Grant Jackson
Careerverified
Per 9 Inningsverified
11.99
11.99
Jack Aker
Careerverified
Per 9 Inningsverified
20
0.24
Grant Jackson
Career
Per 9 Innings
12
0.08
Jack Aker
Career
Per 9 Innings
0
0
Grant Jackson
Career
Per 9 Innings
0
0
Jack Aker
Career
Per 9 Innings
0
0
Grant Jackson
Career
Per 9 Innings
0
0
Jack Aker
Career
Per 9 Innings
0
0
Grant Jackson
Career
Per 9 Innings
0
0
Jack Aker
Career
Per 9 Innings
0
0
Grant Jackson
Career
Per 9 Innings
0
0

Hitting Stats for Jack Aker and Grant Jackson

Jack Aker
Career
Per 600 PA
11
11
Grant Jackson
Careerverified
Per 600 PAverified
18
18
Jack Aker
Career
Per 600 PAverified
496
2861.54
Grant Jackson
Careerverified
Per 600 PA
718
1709.52
Jack Aker
Career
Per 600 PA
104
600
Grant Jackson
Careerverified
Per 600 PA
252
600
Jack Aker
Career
Per 600 PA
92
530.77
Grant Jackson
Careerverified
Per 600 PAverified
236
561.9
Jack Aker
Career
Per 600 PA
0.076
0.076
Grant Jackson
Careerverified
Per 600 PAverified
0.136
0.136
Jack Aker
Career
Per 600 PA
0.279
0.279
Grant Jackson
Careerverified
Per 600 PAverified
0.373
0.373
Jack Aker
Career
Per 600 PA
7
40.38
Grant Jackson
Careerverified
Per 600 PAverified
32
76.19
Jack Aker
Career
Per 600 PA
5
28.85
Grant Jackson
Careerverified
Per 600 PAverified
27
64.29
Jack Aker
Career
Per 600 PAverified
2
11.54
Grant Jackson
Career
Per 600 PA
2
4.76
Jack Aker
Career
Per 600 PA
0
0
Grant Jackson
Careerverified
Per 600 PAverified
1
2.38
Jack Aker
Career
Per 600 PA
0
0
Grant Jackson
Careerverified
Per 600 PAverified
2
4.76
Jack Aker
Career
Per 600 PA
2
11.54
Grant Jackson
Careerverified
Per 600 PAverified
5
11.9
Jack Aker
Careerverified
Per 600 PAverified
0.286
0.286
Grant Jackson
Career
Per 600 PA
0.156
0.156
Jack Aker
Career
Per 600 PA
0
0
Grant Jackson
Careerverified
Per 600 PAverified
0.009
0.009
Jack Aker
Career
Per 600 PA
0
0
Grant Jackson
Careerverified
Per 600 PAverified
0.063
0.063
Jack Aker
Career
Per 600 PA
0.81
4.66
Grant Jackson
Careerverified
Per 600 PAverified
7.48
17.81
Jack Aker
Career
Per 600 PA
9
51.92
Grant Jackson
Careerverified
Per 600 PAverified
42
100
Jack Aker
Career
Per 600 PA
9
51.92
Grant Jackson
Careerverified
Per 600 PAverified
40
95.24
Jack Aker
Career
Per 600 PA
0.096
0.096
Grant Jackson
Careerverified
Per 600 PAverified
0.164
0.164
Jack Aker
Career
Per 600 PA
0.098
0.098
Grant Jackson
Careerverified
Per 600 PAverified
0.178
0.178
Jack Aker
Career
Per 600 PA
0.194
0.194
Grant Jackson
Careerverified
Per 600 PAverified
0.342
0.342
Jack Aker
Career
Per 600 PA
0.022
0.022
Grant Jackson
Careerverified
Per 600 PAverified
0.042
0.042
Jack Aker
Career
Per 600 PA
0.068
0.068
Grant Jackson
Careerverified
Per 600 PAverified
0.118
0.118
Jack Aker
Career
Per 600 PA
0.128
0.128
Grant Jackson
Careerverified
Per 600 PAverified
0.242
0.242
Jack Aker
Career
Per 600 PA
0.171
0.171
Grant Jackson
Careerverified
Per 600 PAverified
0.208
0.208
Jack Aker
Career
Per 600 PA
3
17.31
Grant Jackson
Careerverified
Per 600 PAverified
20
47.62
Jack Aker
Career
Per 600 PA
4
23.08
Grant Jackson
Careerverified
Per 600 PAverified
17
40.48
Jack Aker
Career
Per 600 PA
7
40.38
Grant Jackson
Careerverified
Per 600 PAverified
35
83.33
Jack Aker
Career
Per 600 PA
-4.13
-23.83
Grant Jackson
Careerverified
Per 600 PAverified
1.36
3.23
Jack Aker
Career
Per 600 PAverified
1
5.77
Grant Jackson
Career
Per 600 PA
1
2.38
Jack Aker
Career
Per 600 PA
1
5.77
Grant Jackson
Careerverified
Per 600 PAverified
7
16.67
Jack Aker
Career
Per 600 PA
0
0
Grant Jackson
Career
Per 600 PA
0
0
Jack Aker
Careerverified
Per 600 PA
51
294.23
Grant Jackson
Career
Per 600 PAverified
90
214.29
Jack Aker
Career
Per 600 PA
2.04
2.04
Grant Jackson
Careerverified
Per 600 PAverified
2.8
2.8
Jack Aker
Career
Per 600 PA
0.02
0.02
Grant Jackson
Careerverified
Per 600 PAverified
0.08
0.08
Jack Aker
Careerverified
Per 600 PAverified
10
57.69
Grant Jackson
Career
Per 600 PA
8
19.05
Jack Aker
Career
Per 600 PA
0
0
Grant Jackson
Career
Per 600 PA
0
0
Jack Aker
Careerverified
Per 600 PAverified
1
5.77
Grant Jackson
Career
Per 600 PA
3
7.14
Jack Aker
Career
Per 600 PA
0
0
Grant Jackson
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
0
0
Grant Jackson
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
0
0
Grant Jackson
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
Grant Jackson
Career
Per 600 PA