Jack Armstrong vs. Jimmy Key — Career Comparison

Jack Armstrong
Gen XNew JerseyThrows RightBats RightNorth AmericaCincinnati RedsNational LeagueStarting PitcherAll-Star
Jimmy Key
Baby BoomersAlabamaThrows LeftBats RightNorth AmericaToronto Blue JaysAmerican LeagueStarting PitcherAll-Star

The numbers give Jimmy Key a clear advantage over Jack Armstrong across the core pitching metrics. Jimmy Key led in walk avoidance (BB%+ 151 vs 91), run prevention (ERA+ 121 vs 89), and skill-based run prevention (DICE+ 102 vs 89). Jack Armstrong held the edge in strikeout rate (K%+ 103 vs 90). Jimmy Key was the better starter — the numbers make that case clearly.

Pitching Stats for Jack Armstrong and Jimmy Key

Jack Armstrong
Career
Per 9 Innings
7
7
Jimmy Key
Careerverified
Per 9 Inningsverified
15
15
Jack Armstrong
Career
Per 9 Inningsverified
152
1.74
Jimmy Key
Careerverified
Per 9 Innings
470
1.63
Jack Armstrong
Career
Per 9 Inningsverified
130
1.49
Jimmy Key
Careerverified
Per 9 Innings
389
1.35
Jack Armstrong
Career
Per 9 Innings
40
0.46
Jimmy Key
Careerverified
Per 9 Inningsverified
186
0.65
Jack Armstrong
Careerverified
Per 9 Innings
65
0.74
Jimmy Key
Career
Per 9 Inningsverified
117
0.41
Jack Armstrong
Career
Per 9 Innings
38.1
38.1
Jimmy Key
Careerverified
Per 9 Inningsverified
61.39
61.39
Jack Armstrong
Careerverified
Per 9 Inningsverified
85.53
85.53
Jimmy Key
Career
Per 9 Innings
82.77
82.77
Jack Armstrong
Career
Per 9 Innings
4
0.05
Jimmy Key
Careerverified
Per 9 Inningsverified
34
0.12
Jack Armstrong
Career
Per 9 Innings
1
0.01
Jimmy Key
Careerverified
Per 9 Inningsverified
13
0.05
Jack Armstrong
Career
Per 9 Innings
0
0
Jimmy Key
Careerverified
Per 9 Inningsverified
10
0.03
Jack Armstrong
Careerverified
Per 9 Innings
400
4.58
Jimmy Key
Career
Per 9 Inningsverified
1010
3.51
Jack Armstrong
Career
Per 9 Innings
4.58
4.58
Jimmy Key
Careerverified
Per 9 Inningsverified
3.51
3.51
Jack Armstrong
Career
Per 9 Innings
4.48
4.48
Jimmy Key
Careerverified
Per 9 Inningsverified
3.42
3.42
Jack Armstrong
Career
Per 9 Innings
4.67
4.67
Jimmy Key
Careerverified
Per 9 Inningsverified
3.9
3.9
Jack Armstrong
Career
Per 9 Innings
0.265
0.265
Jimmy Key
Careerverified
Per 9 Inningsverified
0.256
0.256
Jack Armstrong
Career
Per 9 Innings
2360
27
Jimmy Key
Careerverified
Per 9 Innings
7775
27
Jack Armstrong
Career
Per 9 Innings
786.2
9
Jimmy Key
Careerverified
Per 9 Innings
2591.2
9
Jack Armstrong
Careerverified
Per 9 Innings
807
9.23
Jimmy Key
Career
Per 9 Inningsverified
2518
8.74
Jack Armstrong
Career
Per 9 Innings
9.23
9.23
Jimmy Key
Careerverified
Per 9 Inningsverified
8.74
8.74
Jack Armstrong
Careerverified
Per 9 Innings
102
1.17
Jimmy Key
Career
Per 9 Inningsverified
254
0.88
Jack Armstrong
Career
Per 9 Innings
1.17
1.17
Jimmy Key
Careerverified
Per 9 Inningsverified
0.88
0.88
Jack Armstrong
Career
Per 9 Innings
0.67
0.67
Jimmy Key
Careerverified
Per 9 Inningsverified
0.54
0.54
Jack Armstrong
Careerverified
Per 9 Innings
319
3.65
Jimmy Key
Career
Per 9 Inningsverified
668
2.32
Jack Armstrong
Careerverified
Per 9 Innings
21
0.24
Jimmy Key
Career
Per 9 Inningsverified
29
0.1
Jack Armstrong
Career
Per 9 Innings
3.65
3.65
Jimmy Key
Careerverified
Per 9 Inningsverified
2.32
2.32
Jack Armstrong
Career
Per 9 Inningsverified
510
5.83
Jimmy Key
Careerverified
Per 9 Innings
1538
5.34
Jack Armstrong
Careerverified
Per 9 Inningsverified
5.83
5.83
Jimmy Key
Career
Per 9 Innings
5.34
5.34
Jack Armstrong
Careerverified
Per 9 Inningsverified
3.36
3.36
Jimmy Key
Career
Per 9 Innings
3.27
3.27
Jack Armstrong
Careerverified
Per 9 Inningsverified
1.054
1.054
Jimmy Key
Career
Per 9 Innings
0.851
0.851
Jack Armstrong
Careerverified
Per 9 Innings
26
0.3
Jimmy Key
Career
Per 9 Inningsverified
50
0.17
Jack Armstrong
Careerverified
Per 9 Innings
18
0.21
Jimmy Key
Career
Per 9 Inningsverified
38
0.13
Jack Armstrong
Career
Per 9 Innings
13
0.15
Jimmy Key
Careerverified
Per 9 Inningsverified
12
0.04
Jack Armstrong
Career
Per 9 Inningsverified
3450
39.47
Jimmy Key
Careerverified
Per 9 Innings
10719
37.22
Jack Armstrong
Career
Per 9 Inningsverified
10
0.11
Jimmy Key
Careerverified
Per 9 Innings
28
0.1
Jack Armstrong
Careerverified
Per 9 Innings
439
5.02
Jimmy Key
Career
Per 9 Inningsverified
1104
3.83
Jack Armstrong
Career
Per 9 Innings
5.02
5.02
Jimmy Key
Careerverified
Per 9 Inningsverified
3.83
3.83
Jack Armstrong
Careerverified
Per 9 Innings
34
0.39
Jimmy Key
Career
Per 9 Inningsverified
88
0.31
Jack Armstrong
Careerverified
Per 9 Innings
35
0.4
Jimmy Key
Career
Per 9 Inningsverified
69
0.24
Jack Armstrong
Career
Per 9 Innings
37
0.42
Jimmy Key
Careerverified
Per 9 Inningsverified
234
0.81
Jack Armstrong
Career
Per 9 Innings
1.431
1.431
Jimmy Key
Careerverified
Per 9 Inningsverified
1.229
1.229
Jack Armstrong
Career
Per 9 Inningsverified
3044
34.83
Jimmy Key
Careerverified
Per 9 Innings
9856
34.23
Jack Armstrong
Career
Per 9 Innings
2.89
2.89
Jimmy Key
Careerverified
Per 9 Inningsverified
2.35
2.35
Jack Armstrong
Career
Per 9 Innings
0.29
0.29
Jimmy Key
Careerverified
Per 9 Inningsverified
0.281
0.281
Jack Armstrong
Careerverified
Per 9 Inningsverified
39.47
39.47
Jimmy Key
Career
Per 9 Innings
37.22
37.22

Fielding Stats for Jack Armstrong and Jimmy Key

Jack Armstrong
Career
Per 9 Innings
7
7
Jimmy Key
Careerverified
Per 9 Inningsverified
15
15
Jack Armstrong
Career
Per 9 Inningsverified
152
1.74
Jimmy Key
Careerverified
Per 9 Innings
470
1.63
Jack Armstrong
Career
Per 9 Inningsverified
130
1.49
Jimmy Key
Careerverified
Per 9 Innings
389
1.35
Jack Armstrong
Career
Per 9 Innings
2360
27
Jimmy Key
Careerverified
Per 9 Innings
7775
27
Jack Armstrong
Career
Per 9 Innings
786.2
9
Jimmy Key
Careerverified
Per 9 Innings
2591.2
9
Jack Armstrong
Career
Per 9 Inningsverified
62
0.71
Jimmy Key
Careerverified
Per 9 Innings
172
0.6
Jack Armstrong
Career
Per 9 Innings
111
1.27
Jimmy Key
Careerverified
Per 9 Inningsverified
452
1.57
Jack Armstrong
Careerverified
Per 9 Innings
8
0.09
Jimmy Key
Career
Per 9 Inningsverified
22
0.08
Jack Armstrong
Career
Per 9 Innings
181
2.07
Jimmy Key
Careerverified
Per 9 Inningsverified
646
2.24
Jack Armstrong
Career
Per 9 Innings
173
1.98
Jimmy Key
Careerverified
Per 9 Inningsverified
624
2.17
Jack Armstrong
Career
Per 9 Innings
95.58
95.58
Jimmy Key
Careerverified
Per 9 Inningsverified
96.59
96.59
Jack Armstrong
Career
Per 9 Innings
1.138
1.138
Jimmy Key
Careerverified
Per 9 Inningsverified
1.328
1.328
Jack Armstrong
Careerverified
Per 9 Inningsverified
85.53
85.53
Jimmy Key
Career
Per 9 Innings
82.77
82.77
Jack Armstrong
Career
Per 9 Innings
5
0.06
Jimmy Key
Careerverified
Per 9 Inningsverified
35
0.12
Jack Armstrong
Career
Per 9 Innings
0
0
Jimmy Key
Career
Per 9 Innings
0
0
Jack Armstrong
Career
Per 9 Innings
0
0
Jimmy Key
Career
Per 9 Innings
0
0
Jack Armstrong
Career
Per 9 Innings
0
0
Jimmy Key
Career
Per 9 Innings
0
0
Jack Armstrong
Career
Per 9 Innings
0
0
Jimmy Key
Career
Per 9 Innings
0
0

Hitting Stats for Jack Armstrong and Jimmy Key

Jack Armstrong
Career
Per 600 PA
7
7
Jimmy Key
Careerverified
Per 600 PAverified
15
15
Jack Armstrong
Career
Per 600 PA
153
426.98
Jimmy Key
Careerverified
Per 600 PAverified
471
94200
Jack Armstrong
Careerverified
Per 600 PA
215
600
Jimmy Key
Career
Per 600 PA
3
600
Jack Armstrong
Careerverified
Per 600 PAverified
185
516.28
Jimmy Key
Career
Per 600 PA
2
400
Jack Armstrong
Careerverified
Per 600 PAverified
0.114
0.114
Jimmy Key
Career
Per 600 PA
0
0
Jack Armstrong
Careerverified
Per 600 PAverified
0.354
0.354
Jimmy Key
Career
Per 600 PA
0.333
0.333
Jack Armstrong
Careerverified
Per 600 PAverified
21
58.6
Jimmy Key
Career
Per 600 PA
0
0
Jack Armstrong
Careerverified
Per 600 PAverified
19
53.02
Jimmy Key
Career
Per 600 PA
0
0
Jack Armstrong
Careerverified
Per 600 PAverified
2
5.58
Jimmy Key
Career
Per 600 PA
0
0
Jack Armstrong
Career
Per 600 PA
0
0
Jimmy Key
Career
Per 600 PA
0
0
Jack Armstrong
Career
Per 600 PA
0
0
Jimmy Key
Career
Per 600 PA
0
0
Jack Armstrong
Careerverified
Per 600 PAverified
2
5.58
Jimmy Key
Career
Per 600 PA
0
0
Jack Armstrong
Careerverified
Per 600 PAverified
0.095
0.095
Jimmy Key
Career
Per 600 PA
Jack Armstrong
Career
Per 600 PA
0
0
Jimmy Key
Career
Per 600 PA
0
0
Jack Armstrong
Career
Per 600 PA
0
0
Jimmy Key
Career
Per 600 PA
Jack Armstrong
Careerverified
Per 600 PAverified
2.16
6.02
Jimmy Key
Career
Per 600 PA
0
0
Jack Armstrong
Careerverified
Per 600 PAverified
23
64.19
Jimmy Key
Career
Per 600 PA
0
0
Jack Armstrong
Careerverified
Per 600 PAverified
25
69.77
Jimmy Key
Career
Per 600 PA
0
0
Jack Armstrong
Careerverified
Per 600 PAverified
0.132
0.132
Jimmy Key
Career
Per 600 PA
0
0
Jack Armstrong
Careerverified
Per 600 PAverified
0.124
0.124
Jimmy Key
Career
Per 600 PA
0
0
Jack Armstrong
Careerverified
Per 600 PAverified
0.257
0.257
Jimmy Key
Career
Per 600 PA
0
0
Jack Armstrong
Careerverified
Per 600 PAverified
0.011
0.011
Jimmy Key
Career
Per 600 PA
0
0
Jack Armstrong
Careerverified
Per 600 PAverified
0.091
0.091
Jimmy Key
Career
Per 600 PA
0
0
Jack Armstrong
Careerverified
Per 600 PAverified
0.159
0.159
Jimmy Key
Career
Per 600 PA
0
0
Jack Armstrong
Careerverified
Per 600 PAverified
0.206
0.206
Jimmy Key
Career
Per 600 PA
Jack Armstrong
Careerverified
Per 600 PAverified
8
22.33
Jimmy Key
Career
Per 600 PA
0
0
Jack Armstrong
Careerverified
Per 600 PAverified
8
22.33
Jimmy Key
Career
Per 600 PA
0
0
Jack Armstrong
Careerverified
Per 600 PAverified
16
44.65
Jimmy Key
Career
Per 600 PA
0
0
Jack Armstrong
Career
Per 600 PAverified
-4.73
-13.19
Jimmy Key
Careerverified
Per 600 PA
-0.19
-38.03
Jack Armstrong
Careerverified
Per 600 PAverified
2
5.58
Jimmy Key
Career
Per 600 PA
0
0
Jack Armstrong
Careerverified
Per 600 PAverified
2
5.58
Jimmy Key
Career
Per 600 PA
0
0
Jack Armstrong
Career
Per 600 PA
0
0
Jimmy Key
Career
Per 600 PA
0
0
Jack Armstrong
Career
Per 600 PAverified
83
231.63
Jimmy Key
Careerverified
Per 600 PA
2
400
Jack Armstrong
Careerverified
Per 600 PAverified
2.59
2.59
Jimmy Key
Career
Per 600 PA
1.5
1.5
Jack Armstrong
Careerverified
Per 600 PAverified
0.02
0.02
Jimmy Key
Career
Per 600 PA
0
0
Jack Armstrong
Careerverified
Per 600 PA
26
72.56
Jimmy Key
Career
Per 600 PAverified
1
200
Jack Armstrong
Career
Per 600 PA
0
0
Jimmy Key
Career
Per 600 PA
0
0
Jack Armstrong
Career
Per 600 PA
6
16.74
Jimmy Key
Careerverified
Per 600 PAverified
0
0
Jack Armstrong
Career
Per 600 PA
0
0
Jimmy Key
Career
Per 600 PA
0
0
Jack Armstrong
Career
Per 600 PA
0
0
Jimmy Key
Career
Per 600 PA
0
0
Jack Armstrong
Career
Per 600 PA
0
0
Jimmy Key
Career
Per 600 PA
0
0
Jack Armstrong
Career
Per 600 PA
Jimmy Key
Career
Per 600 PA