Jack Aker vs. Lefty Leifield — Career Comparison

Jack Aker
Silent GenerationCaliforniaThrows RightBats RightNorth AmericaKansas City AthleticsAmerican LeagueRelief Pitcher
Lefty Leifield
Lost GenerationIllinoisThrows LeftBats LeftNorth AmericaPittsburgh PiratesNational LeagueStarting Pitcher

Lefty Leifield 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. Lefty Leifield posted stronger surface numbers — ERA 2.47 and WHIP 1.212 compared to 3.28 and 1.369 for Jack Aker. By the career numbers, Lefty Leifield had the better of this cross-role comparison — though era context would sharpen the verdict.

Pitching Stats for Jack Aker and Lefty Leifield

Jack Aker
Career
Per 9 Innings
11
11
Lefty Leifield
Careerverified
Per 9 Inningsverified
12
12
Jack Aker
Careerverified
Per 9 Inningsverified
495
5.97
Lefty Leifield
Career
Per 9 Innings
296
1.45
Jack Aker
Career
Per 9 Innings
0
0
Lefty Leifield
Careerverified
Per 9 Inningsverified
216
1.06
Jack Aker
Career
Per 9 Innings
47
0.57
Lefty Leifield
Careerverified
Per 9 Inningsverified
124
0.61
Jack Aker
Careerverified
Per 9 Innings
45
0.54
Lefty Leifield
Career
Per 9 Inningsverified
97
0.47
Jack Aker
Career
Per 9 Innings
51.09
51.09
Lefty Leifield
Careerverified
Per 9 Inningsverified
56.11
56.11
Jack Aker
Career
Per 9 Innings
0
0
Lefty Leifield
Careerverified
Per 9 Inningsverified
72.97
72.97
Jack Aker
Career
Per 9 Innings
0
0
Lefty Leifield
Careerverified
Per 9 Inningsverified
138
0.68
Jack Aker
Career
Per 9 Innings
0
0
Lefty Leifield
Careerverified
Per 9 Inningsverified
33
0.16
Jack Aker
Careerverified
Per 9 Inningsverified
123
1.48
Lefty Leifield
Career
Per 9 Innings
7
0.03
Jack Aker
Careerverified
Per 9 Innings
272
3.28
Lefty Leifield
Career
Per 9 Inningsverified
505
2.47
Jack Aker
Career
Per 9 Innings
3.28
3.28
Lefty Leifield
Careerverified
Per 9 Inningsverified
2.47
2.47
Jack Aker
Career
Per 9 Innings
3.45
3.45
Lefty Leifield
Careerverified
Per 9 Inningsverified
2.94
2.94
Jack Aker
Career
Per 9 Innings
4.29
4.29
Lefty Leifield
Careerverified
Per 9 Inningsverified
3.56
3.56
Jack Aker
Careerverified
Per 9 Inningsverified
0.244
0.244
Lefty Leifield
Career
Per 9 Innings
0.247
0.247
Jack Aker
Career
Per 9 Innings
2238
27
Lefty Leifield
Careerverified
Per 9 Innings
5514
27
Jack Aker
Career
Per 9 Innings
746
9
Lefty Leifield
Careerverified
Per 9 Innings
1838
9
Jack Aker
Careerverified
Per 9 Innings
679
8.19
Lefty Leifield
Career
Per 9 Innings
1673
8.19
Jack Aker
Career
Per 9 Innings
8.19
8.19
Lefty Leifield
Career
Per 9 Innings
8.19
8.19
Jack Aker
Career
Per 9 Innings
64
0.77
Lefty Leifield
Careerverified
Per 9 Inningsverified
27
0.13
Jack Aker
Career
Per 9 Innings
0.77
0.77
Lefty Leifield
Careerverified
Per 9 Inningsverified
0.13
0.13
Jack Aker
Career
Per 9 Innings
0.13
0.13
Lefty Leifield
Careerverified
Per 9 Inningsverified
0.09
0.09
Jack Aker
Careerverified
Per 9 Innings
274
3.31
Lefty Leifield
Career
Per 9 Inningsverified
554
2.71
Jack Aker
Career
Per 9 Innings
68
0.82
Lefty Leifield
Careerverified
Per 9 Inningsverified
0
0
Jack Aker
Career
Per 9 Innings
3.31
3.31
Lefty Leifield
Careerverified
Per 9 Inningsverified
2.71
2.71
Jack Aker
Career
Per 9 Inningsverified
404
4.87
Lefty Leifield
Careerverified
Per 9 Innings
616
3.02
Jack Aker
Careerverified
Per 9 Inningsverified
4.87
4.87
Lefty Leifield
Career
Per 9 Innings
3.02
3.02
Jack Aker
Career
Per 9 Innings
0.82
0.82
Lefty Leifield
Careerverified
Per 9 Inningsverified
2.08
2.08
Jack Aker
Careerverified
Per 9 Inningsverified
0.909
0.909
Lefty Leifield
Career
Per 9 Innings
0.637
0.637
Jack Aker
Careerverified
Per 9 Innings
13
0.16
Lefty Leifield
Career
Per 9 Inningsverified
17
0.08
Jack Aker
Careerverified
Per 9 Innings
40
0.48
Lefty Leifield
Career
Per 9 Inningsverified
85
0.42
Jack Aker
Careerverified
Per 9 Inningsverified
0
0
Lefty Leifield
Career
Per 9 Innings
2
0.01
Jack Aker
Career
Per 9 Inningsverified
3144
37.93
Lefty Leifield
Careerverified
Per 9 Innings
7411
36.29
Jack Aker
Careerverified
Per 9 Inningsverified
321
3.87
Lefty Leifield
Career
Per 9 Innings
57
0.28
Jack Aker
Careerverified
Per 9 Innings
312
3.76
Lefty Leifield
Career
Per 9 Inningsverified
694
3.4
Jack Aker
Career
Per 9 Innings
3.76
3.76
Lefty Leifield
Careerverified
Per 9 Inningsverified
3.4
3.4
Jack Aker
Career
Per 9 Innings
32
0.39
Lefty Leifield
Careerverified
Per 9 Inningsverified
0
0
Jack Aker
Career
Per 9 Innings
12
0.14
Lefty Leifield
Careerverified
Per 9 Inningsverified
0
0
Jack Aker
Careerverified
Per 9 Inningsverified
19
0.23
Lefty Leifield
Career
Per 9 Innings
0
0
Jack Aker
Career
Per 9 Innings
1.278
1.278
Lefty Leifield
Careerverified
Per 9 Inningsverified
1.212
1.212
Jack Aker
Career
Per 9 Inningsverified
2786
33.61
Lefty Leifield
Careerverified
Per 9 Innings
6772
33.16
Jack Aker
Careerverified
Per 9 Inningsverified
0.63
0.63
Lefty Leifield
Career
Per 9 Innings
2.34
2.34
Jack Aker
Careerverified
Per 9 Inningsverified
0.265
0.265
Lefty Leifield
Career
Per 9 Innings
0.269
0.269
Jack Aker
Careerverified
Per 9 Inningsverified
37.93
37.93
Lefty Leifield
Career
Per 9 Innings
36.29
36.29

Fielding Stats for Jack Aker and Lefty Leifield

Jack Aker
Career
Per 9 Innings
11
11
Lefty Leifield
Careerverified
Per 9 Inningsverified
12
12
Jack Aker
Careerverified
Per 9 Inningsverified
495
5.97
Lefty Leifield
Career
Per 9 Innings
297
2.16
Jack Aker
Career
Per 9 Innings
0
0
Lefty Leifield
Careerverified
Per 9 Inningsverified
153
1.11
Jack Aker
Career
Per 9 Innings
2240
27
Lefty Leifield
Careerverified
Per 9 Innings
3711
27
Jack Aker
Career
Per 9 Innings
746.2
9
Lefty Leifield
Careerverified
Per 9 Innings
1237
9
Jack Aker
Career
Per 9 Inningsverified
65
0.78
Lefty Leifield
Careerverified
Per 9 Innings
85
0.62
Jack Aker
Career
Per 9 Innings
167
2.01
Lefty Leifield
Careerverified
Per 9 Inningsverified
558
4.06
Jack Aker
Careerverified
Per 9 Inningsverified
8
0.1
Lefty Leifield
Career
Per 9 Innings
27
0.2
Jack Aker
Career
Per 9 Innings
240
2.89
Lefty Leifield
Careerverified
Per 9 Inningsverified
670
4.87
Jack Aker
Career
Per 9 Innings
232
2.8
Lefty Leifield
Careerverified
Per 9 Inningsverified
643
4.68
Jack Aker
Careerverified
Per 9 Inningsverified
96.67
96.67
Lefty Leifield
Career
Per 9 Innings
95.97
95.97
Jack Aker
Career
Per 9 Innings
0.469
0.469
Lefty Leifield
Careerverified
Per 9 Inningsverified
2.165
2.165
Jack Aker
Career
Per 9 Innings
0
0
Lefty Leifield
Careerverified
Per 9 Inningsverified
51.52
51.52
Jack Aker
Career
Per 9 Inningsverified
20
0.24
Lefty Leifield
Careerverified
Per 9 Innings
23
0.17
Jack Aker
Career
Per 9 Innings
0
0
Lefty Leifield
Career
Per 9 Innings
0
0
Jack Aker
Career
Per 9 Innings
0
0
Lefty Leifield
Career
Per 9 Innings
0
0
Jack Aker
Career
Per 9 Innings
0
0
Lefty Leifield
Career
Per 9 Innings
0
0
Jack Aker
Career
Per 9 Innings
0
0
Lefty Leifield
Career
Per 9 Innings
0
0

Hitting Stats for Jack Aker and Lefty Leifield

Jack Aker
Career
Per 600 PA
11
11
Lefty Leifield
Careerverified
Per 600 PAverified
12
12
Jack Aker
Careerverified
Per 600 PAverified
496
2861.54
Lefty Leifield
Career
Per 600 PA
298
260.26
Jack Aker
Career
Per 600 PA
104
600
Lefty Leifield
Careerverified
Per 600 PA
687
600
Jack Aker
Career
Per 600 PA
92
530.77
Lefty Leifield
Careerverified
Per 600 PAverified
611
533.62
Jack Aker
Career
Per 600 PA
0.076
0.076
Lefty Leifield
Careerverified
Per 600 PAverified
0.175
0.175
Jack Aker
Career
Per 600 PA
0.279
0.279
Lefty Leifield
Careerverified
Per 600 PAverified
0.507
0.507
Jack Aker
Career
Per 600 PA
7
40.38
Lefty Leifield
Careerverified
Per 600 PAverified
107
93.45
Jack Aker
Career
Per 600 PA
5
28.85
Lefty Leifield
Careerverified
Per 600 PAverified
87
75.98
Jack Aker
Career
Per 600 PAverified
2
11.54
Lefty Leifield
Careerverified
Per 600 PA
11
9.61
Jack Aker
Career
Per 600 PA
0
0
Lefty Leifield
Careerverified
Per 600 PAverified
9
7.86
Jack Aker
Career
Per 600 PA
0
0
Lefty Leifield
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
2
11.54
Lefty Leifield
Careerverified
Per 600 PAverified
20
17.47
Jack Aker
Careerverified
Per 600 PAverified
0.286
0.286
Lefty Leifield
Career
Per 600 PA
0.187
0.187
Jack Aker
Career
Per 600 PA
0
0
Lefty Leifield
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
0
0
Lefty Leifield
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
0.81
4.66
Lefty Leifield
Careerverified
Per 600 PAverified
35.87
31.33
Jack Aker
Career
Per 600 PA
9
51.92
Lefty Leifield
Careerverified
Per 600 PAverified
136
118.78
Jack Aker
Career
Per 600 PA
9
51.92
Lefty Leifield
Careerverified
Per 600 PAverified
157
137.12
Jack Aker
Career
Per 600 PA
0.096
0.096
Lefty Leifield
Careerverified
Per 600 PAverified
0.238
0.238
Jack Aker
Career
Per 600 PA
0.098
0.098
Lefty Leifield
Careerverified
Per 600 PAverified
0.223
0.223
Jack Aker
Career
Per 600 PA
0.194
0.194
Lefty Leifield
Careerverified
Per 600 PAverified
0.46
0.46
Jack Aker
Career
Per 600 PA
0.022
0.022
Lefty Leifield
Careerverified
Per 600 PAverified
0.048
0.048
Jack Aker
Career
Per 600 PA
0.068
0.068
Lefty Leifield
Careerverified
Per 600 PAverified
0.163
0.163
Jack Aker
Career
Per 600 PA
0.128
0.128
Lefty Leifield
Careerverified
Per 600 PAverified
0.379
0.379
Jack Aker
Career
Per 600 PA
0.171
0.171
Lefty Leifield
Careerverified
Per 600 PAverified
0.226
0.226
Jack Aker
Career
Per 600 PA
3
17.31
Lefty Leifield
Careerverified
Per 600 PAverified
46
40.17
Jack Aker
Career
Per 600 PA
4
23.08
Lefty Leifield
Careerverified
Per 600 PAverified
30
26.2
Jack Aker
Career
Per 600 PA
7
40.38
Lefty Leifield
Careerverified
Per 600 PAverified
76
66.38
Jack Aker
Career
Per 600 PA
-4.13
-23.83
Lefty Leifield
Careerverified
Per 600 PAverified
35.84
31.3
Jack Aker
Career
Per 600 PAverified
1
5.77
Lefty Leifield
Careerverified
Per 600 PA
2
1.75
Jack Aker
Career
Per 600 PA
1
5.77
Lefty Leifield
Careerverified
Per 600 PAverified
48
41.92
Jack Aker
Career
Per 600 PA
0
0
Lefty Leifield
Career
Per 600 PA
0
0
Jack Aker
Careerverified
Per 600 PA
51
294.23
Lefty Leifield
Career
Per 600 PAverified
138
120.52
Jack Aker
Career
Per 600 PA
2.04
2.04
Lefty Leifield
Careerverified
Per 600 PAverified
4.98
4.98
Jack Aker
Career
Per 600 PA
0.02
0.02
Lefty Leifield
Careerverified
Per 600 PAverified
0.35
0.35
Jack Aker
Career
Per 600 PAverified
10
57.69
Lefty Leifield
Careerverified
Per 600 PA
26
22.71
Jack Aker
Career
Per 600 PA
0
0
Lefty Leifield
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
1
5.77
Lefty Leifield
Careerverified
Per 600 PAverified
0
0
Jack Aker
Career
Per 600 PA
0
0
Lefty Leifield
Careerverified
Per 600 PAverified
5
4.37
Jack Aker
Career
Per 600 PA
0
0
Lefty Leifield
Career
Per 600 PA
0
0
Jack Aker
Career
Per 600 PA
0
0
Lefty Leifield
Careerverified
Per 600 PAverified
5
4.37
Jack Aker
Career
Per 600 PA
Lefty Leifield
Careerverified
Per 600 PAverified
100
100