Jack Armstrong vs. Robin Roberts — Career Comparison

Jack Armstrong
Gen XNew JerseyThrows RightBats RightNorth AmericaCincinnati RedsNational LeagueStarting PitcherAll-Star
Robin Roberts
Greatest GenerationIllinoisThrows RightBats SwitchNorth AmericaPhiladelphia PhilliesNational LeagueHall of FameStarting PitcherAll-Star

Jack Armstrong and Robin Roberts are about as close as two starters get — the gap between them is negligible across the key measures. Their run-prevention numbers were nearly identical — ERA+ of 89 for Jack Armstrong and 88 for Robin Roberts, with skill-based marks of DICE+ 89 and 93 respectively. If forced to pick, Jack Armstrong gets the slight nod, but this is a genuinely even pairing.

Pitching Stats for Jack Armstrong and Robin Roberts

Jack Armstrong
Career
Per 9 Innings
7
7
Robin Roberts
Careerverified
Per 9 Inningsverified
19
19
Jack Armstrong
Career
Per 9 Inningsverified
152
1.74
Robin Roberts
Careerverified
Per 9 Innings
676
1.3
Jack Armstrong
Career
Per 9 Inningsverified
130
1.49
Robin Roberts
Careerverified
Per 9 Innings
609
1.17
Jack Armstrong
Career
Per 9 Innings
40
0.46
Robin Roberts
Careerverified
Per 9 Inningsverified
286
0.55
Jack Armstrong
Careerverified
Per 9 Innings
65
0.74
Robin Roberts
Career
Per 9 Inningsverified
245
0.47
Jack Armstrong
Career
Per 9 Innings
38.1
38.1
Robin Roberts
Careerverified
Per 9 Inningsverified
53.86
53.86
Jack Armstrong
Career
Per 9 Innings
85.53
85.53
Robin Roberts
Careerverified
Per 9 Inningsverified
90.09
90.09
Jack Armstrong
Career
Per 9 Innings
4
0.05
Robin Roberts
Careerverified
Per 9 Inningsverified
305
0.59
Jack Armstrong
Career
Per 9 Innings
1
0.01
Robin Roberts
Careerverified
Per 9 Inningsverified
45
0.09
Jack Armstrong
Career
Per 9 Innings
0
0
Robin Roberts
Careerverified
Per 9 Inningsverified
25
0.05
Jack Armstrong
Careerverified
Per 9 Innings
400
4.58
Robin Roberts
Career
Per 9 Inningsverified
1774
3.41
Jack Armstrong
Career
Per 9 Innings
4.58
4.58
Robin Roberts
Careerverified
Per 9 Inningsverified
3.41
3.41
Jack Armstrong
Career
Per 9 Innings
4.48
4.48
Robin Roberts
Careerverified
Per 9 Inningsverified
3.24
3.24
Jack Armstrong
Career
Per 9 Innings
4.67
4.67
Robin Roberts
Careerverified
Per 9 Inningsverified
4.01
4.01
Jack Armstrong
Career
Per 9 Innings
0.265
0.265
Robin Roberts
Careerverified
Per 9 Inningsverified
0.252
0.252
Jack Armstrong
Career
Per 9 Innings
2360
27
Robin Roberts
Careerverified
Per 9 Innings
14066
27
Jack Armstrong
Career
Per 9 Innings
786.2
9
Robin Roberts
Careerverified
Per 9 Innings
4688.2
9
Jack Armstrong
Careerverified
Per 9 Innings
807
9.23
Robin Roberts
Career
Per 9 Inningsverified
4582
8.8
Jack Armstrong
Career
Per 9 Innings
9.23
9.23
Robin Roberts
Careerverified
Per 9 Inningsverified
8.8
8.8
Jack Armstrong
Careerverified
Per 9 Innings
102
1.17
Robin Roberts
Career
Per 9 Inningsverified
505
0.97
Jack Armstrong
Career
Per 9 Innings
1.17
1.17
Robin Roberts
Careerverified
Per 9 Inningsverified
0.97
0.97
Jack Armstrong
Careerverified
Per 9 Inningsverified
0.67
0.67
Robin Roberts
Career
Per 9 Innings
0.75
0.75
Jack Armstrong
Careerverified
Per 9 Innings
319
3.65
Robin Roberts
Career
Per 9 Inningsverified
902
1.73
Jack Armstrong
Careerverified
Per 9 Innings
21
0.24
Robin Roberts
Career
Per 9 Inningsverified
69
0.13
Jack Armstrong
Career
Per 9 Innings
3.65
3.65
Robin Roberts
Careerverified
Per 9 Inningsverified
1.73
1.73
Jack Armstrong
Career
Per 9 Inningsverified
510
5.83
Robin Roberts
Careerverified
Per 9 Innings
2357
4.52
Jack Armstrong
Careerverified
Per 9 Inningsverified
5.83
5.83
Robin Roberts
Career
Per 9 Innings
4.52
4.52
Jack Armstrong
Career
Per 9 Innings
3.36
3.36
Robin Roberts
Careerverified
Per 9 Inningsverified
3.49
3.49
Jack Armstrong
Careerverified
Per 9 Inningsverified
1.054
1.054
Robin Roberts
Career
Per 9 Innings
0.695
0.695
Jack Armstrong
Careerverified
Per 9 Innings
26
0.3
Robin Roberts
Career
Per 9 Inningsverified
33
0.06
Jack Armstrong
Careerverified
Per 9 Innings
18
0.21
Robin Roberts
Career
Per 9 Inningsverified
54
0.1
Jack Armstrong
Career
Per 9 Innings
13
0.15
Robin Roberts
Careerverified
Per 9 Inningsverified
3
0.01
Jack Armstrong
Career
Per 9 Inningsverified
3450
39.47
Robin Roberts
Careerverified
Per 9 Innings
19174
36.8
Jack Armstrong
Career
Per 9 Inningsverified
10
0.11
Robin Roberts
Careerverified
Per 9 Innings
49
0.09
Jack Armstrong
Careerverified
Per 9 Innings
439
5.02
Robin Roberts
Career
Per 9 Inningsverified
1962
3.77
Jack Armstrong
Career
Per 9 Innings
5.02
5.02
Robin Roberts
Careerverified
Per 9 Inningsverified
3.77
3.77
Jack Armstrong
Career
Per 9 Innings
34
0.39
Robin Roberts
Careerverified
Per 9 Inningsverified
0
0
Jack Armstrong
Career
Per 9 Innings
35
0.4
Robin Roberts
Careerverified
Per 9 Inningsverified
0
0
Jack Armstrong
Careerverified
Per 9 Inningsverified
37
0.42
Robin Roberts
Career
Per 9 Innings
0
0
Jack Armstrong
Career
Per 9 Innings
1.431
1.431
Robin Roberts
Careerverified
Per 9 Inningsverified
1.17
1.17
Jack Armstrong
Career
Per 9 Innings
3044
34.83
Robin Roberts
Careerverified
Per 9 Inningsverified
18218
34.97
Jack Armstrong
Careerverified
Per 9 Inningsverified
2.89
2.89
Robin Roberts
Career
Per 9 Innings
2.9
2.9
Jack Armstrong
Career
Per 9 Innings
0.29
0.29
Robin Roberts
Careerverified
Per 9 Inningsverified
0.266
0.266
Jack Armstrong
Careerverified
Per 9 Inningsverified
39.47
39.47
Robin Roberts
Career
Per 9 Innings
36.8
36.8

Fielding Stats for Jack Armstrong and Robin Roberts

Jack Armstrong
Career
Per 9 Innings
7
7
Robin Roberts
Careerverified
Per 9 Inningsverified
19
19
Jack Armstrong
Career
Per 9 Innings
152
1.74
Robin Roberts
Careerverified
Per 9 Inningsverified
676
2.02
Jack Armstrong
Career
Per 9 Inningsverified
130
1.49
Robin Roberts
Careerverified
Per 9 Innings
402
1.2
Jack Armstrong
Career
Per 9 Innings
2360
27
Robin Roberts
Careerverified
Per 9 Innings
9058
27
Jack Armstrong
Career
Per 9 Innings
786.2
9
Robin Roberts
Careerverified
Per 9 Innings
3019.1
9
Jack Armstrong
Career
Per 9 Innings
62
0.71
Robin Roberts
Careerverified
Per 9 Inningsverified
316
0.94
Jack Armstrong
Career
Per 9 Innings
111
1.27
Robin Roberts
Careerverified
Per 9 Inningsverified
601
1.79
Jack Armstrong
Careerverified
Per 9 Innings
8
0.09
Robin Roberts
Career
Per 9 Innings
31
0.09
Jack Armstrong
Career
Per 9 Innings
181
2.07
Robin Roberts
Careerverified
Per 9 Inningsverified
948
2.83
Jack Armstrong
Career
Per 9 Innings
173
1.98
Robin Roberts
Careerverified
Per 9 Inningsverified
917
2.73
Jack Armstrong
Career
Per 9 Innings
95.58
95.58
Robin Roberts
Careerverified
Per 9 Inningsverified
96.73
96.73
Jack Armstrong
Career
Per 9 Innings
1.138
1.138
Robin Roberts
Careerverified
Per 9 Inningsverified
1.357
1.357
Jack Armstrong
Careerverified
Per 9 Inningsverified
85.53
85.53
Robin Roberts
Career
Per 9 Innings
59.47
59.47
Jack Armstrong
Career
Per 9 Innings
5
0.06
Robin Roberts
Careerverified
Per 9 Inningsverified
45
0.13
Jack Armstrong
Career
Per 9 Innings
0
0
Robin Roberts
Career
Per 9 Innings
0
0
Jack Armstrong
Career
Per 9 Innings
0
0
Robin Roberts
Career
Per 9 Innings
0
0
Jack Armstrong
Career
Per 9 Innings
0
0
Robin Roberts
Career
Per 9 Innings
0
0
Jack Armstrong
Career
Per 9 Innings
0
0
Robin Roberts
Career
Per 9 Innings
0
0

Hitting Stats for Jack Armstrong and Robin Roberts

Jack Armstrong
Career
Per 600 PA
7
7
Robin Roberts
Careerverified
Per 600 PAverified
19
19
Jack Armstrong
Career
Per 600 PAverified
153
426.98
Robin Roberts
Careerverified
Per 600 PA
688
231.65
Jack Armstrong
Career
Per 600 PA
215
600
Robin Roberts
Careerverified
Per 600 PA
1782
600
Jack Armstrong
Career
Per 600 PAverified
185
516.28
Robin Roberts
Careerverified
Per 600 PA
1525
513.47
Jack Armstrong
Career
Per 600 PA
0.114
0.114
Robin Roberts
Careerverified
Per 600 PAverified
0.167
0.167
Jack Armstrong
Career
Per 600 PA
0.354
0.354
Robin Roberts
Careerverified
Per 600 PAverified
0.522
0.522
Jack Armstrong
Career
Per 600 PA
21
58.6
Robin Roberts
Careerverified
Per 600 PAverified
255
85.86
Jack Armstrong
Career
Per 600 PA
19
53.02
Robin Roberts
Careerverified
Per 600 PAverified
185
62.29
Jack Armstrong
Career
Per 600 PA
2
5.58
Robin Roberts
Careerverified
Per 600 PAverified
55
18.52
Jack Armstrong
Career
Per 600 PA
0
0
Robin Roberts
Careerverified
Per 600 PAverified
10
3.37
Jack Armstrong
Career
Per 600 PA
0
0
Robin Roberts
Careerverified
Per 600 PAverified
5
1.68
Jack Armstrong
Career
Per 600 PA
2
5.58
Robin Roberts
Careerverified
Per 600 PAverified
70
23.57
Jack Armstrong
Career
Per 600 PA
0.095
0.095
Robin Roberts
Careerverified
Per 600 PAverified
0.275
0.275
Jack Armstrong
Career
Per 600 PA
0
0
Robin Roberts
Careerverified
Per 600 PAverified
0.003
0.003
Jack Armstrong
Career
Per 600 PA
0
0
Robin Roberts
Careerverified
Per 600 PAverified
0.02
0.02
Jack Armstrong
Career
Per 600 PA
2.16
6.02
Robin Roberts
Careerverified
Per 600 PAverified
83.71
28.19
Jack Armstrong
Career
Per 600 PA
23
64.19
Robin Roberts
Careerverified
Per 600 PAverified
345
116.16
Jack Armstrong
Career
Per 600 PA
25
69.77
Robin Roberts
Careerverified
Per 600 PAverified
398
134.01
Jack Armstrong
Career
Per 600 PA
0.132
0.132
Robin Roberts
Careerverified
Per 600 PAverified
0.238
0.238
Jack Armstrong
Career
Per 600 PA
0.124
0.124
Robin Roberts
Careerverified
Per 600 PAverified
0.226
0.226
Jack Armstrong
Career
Per 600 PA
0.257
0.257
Robin Roberts
Careerverified
Per 600 PAverified
0.464
0.464
Jack Armstrong
Career
Per 600 PA
0.011
0.011
Robin Roberts
Careerverified
Per 600 PAverified
0.059
0.059
Jack Armstrong
Career
Per 600 PA
0.091
0.091
Robin Roberts
Careerverified
Per 600 PAverified
0.164
0.164
Jack Armstrong
Career
Per 600 PA
0.159
0.159
Robin Roberts
Careerverified
Per 600 PAverified
0.375
0.375
Jack Armstrong
Career
Per 600 PA
0.206
0.206
Robin Roberts
Careerverified
Per 600 PAverified
0.217
0.217
Jack Armstrong
Career
Per 600 PA
8
22.33
Robin Roberts
Careerverified
Per 600 PAverified
107
36.03
Jack Armstrong
Career
Per 600 PA
8
22.33
Robin Roberts
Careerverified
Per 600 PAverified
103
34.68
Jack Armstrong
Career
Per 600 PA
16
44.65
Robin Roberts
Careerverified
Per 600 PAverified
205
69.02
Jack Armstrong
Career
Per 600 PA
-4.73
-13.19
Robin Roberts
Careerverified
Per 600 PAverified
73.98
24.91
Jack Armstrong
Career
Per 600 PAverified
2
5.58
Robin Roberts
Careerverified
Per 600 PA
8
2.69
Jack Armstrong
Career
Per 600 PA
2
5.58
Robin Roberts
Careerverified
Per 600 PAverified
135
45.45
Jack Armstrong
Career
Per 600 PA
0
0
Robin Roberts
Career
Per 600 PA
0
0
Jack Armstrong
Careerverified
Per 600 PA
83
231.63
Robin Roberts
Career
Per 600 PAverified
372
125.25
Jack Armstrong
Career
Per 600 PA
2.59
2.59
Robin Roberts
Careerverified
Per 600 PAverified
4.79
4.79
Jack Armstrong
Career
Per 600 PA
0.02
0.02
Robin Roberts
Careerverified
Per 600 PAverified
0.36
0.36
Jack Armstrong
Career
Per 600 PAverified
26
72.56
Robin Roberts
Careerverified
Per 600 PA
108
36.36
Jack Armstrong
Career
Per 600 PA
0
0
Robin Roberts
Careerverified
Per 600 PAverified
6
2.02
Jack Armstrong
Careerverified
Per 600 PA
6
16.74
Robin Roberts
Career
Per 600 PAverified
37
12.46
Jack Armstrong
Career
Per 600 PA
0
0
Robin Roberts
Careerverified
Per 600 PAverified
3
1.01
Jack Armstrong
Career
Per 600 PA
0
0
Robin Roberts
Careerverified
Per 600 PAverified
1
0.34
Jack Armstrong
Career
Per 600 PA
0
0
Robin Roberts
Careerverified
Per 600 PAverified
4
1.35
Jack Armstrong
Career
Per 600 PA
Robin Roberts
Careerverified
Per 600 PAverified
75
75