Steve Gromek vs. Dan Jennings — Career Comparison

Steve Gromek
Greatest GenerationMichiganThrows RightBats SwitchNorth AmericaCleveland GuardiansAmerican LeagueStarting PitcherAll-Star
Dan Jennings
MillenialCaliforniaThrows LeftBats LeftNorth AmericaChicago White SoxAmerican LeagueRelief Pitcher

Steve Gromek built a career as a starting pitcher and Dan Jennings as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Dan Jennings posted stronger surface numbers — ERA 3.1 and WHIP 1.486 compared to 3.41 and 1.252 for Steve Gromek. By the career numbers, Dan Jennings had the better of this cross-role comparison — though era context would sharpen the verdict.

Pitching Stats for Steve Gromek and Dan Jennings

Steve Gromek
Careerverified
Per 9 Inningsverified
17
17
Dan Jennings
Career
Per 9 Innings
8
8
Steve Gromek
Careerverified
Per 9 Innings
447
1.95
Dan Jennings
Career
Per 9 Inningsverified
390
10.07
Steve Gromek
Careerverified
Per 9 Inningsverified
225
0.98
Dan Jennings
Career
Per 9 Innings
1
0.03
Steve Gromek
Careerverified
Per 9 Inningsverified
123
0.54
Dan Jennings
Career
Per 9 Innings
17
0.44
Steve Gromek
Career
Per 9 Inningsverified
108
0.47
Dan Jennings
Careerverified
Per 9 Innings
20
0.52
Steve Gromek
Careerverified
Per 9 Inningsverified
53.25
53.25
Dan Jennings
Career
Per 9 Innings
45.95
45.95
Steve Gromek
Careerverified
Per 9 Inningsverified
50.34
50.34
Dan Jennings
Career
Per 9 Innings
0.26
0.26
Steve Gromek
Careerverified
Per 9 Inningsverified
92
0.4
Dan Jennings
Career
Per 9 Innings
0
0
Steve Gromek
Careerverified
Per 9 Inningsverified
17
0.07
Dan Jennings
Career
Per 9 Innings
0
0
Steve Gromek
Careerverified
Per 9 Inningsverified
23
0.1
Dan Jennings
Career
Per 9 Innings
2
0.05
Steve Gromek
Career
Per 9 Innings
782
3.41
Dan Jennings
Careerverified
Per 9 Inningsverified
120
3.1
Steve Gromek
Career
Per 9 Innings
3.41
3.41
Dan Jennings
Careerverified
Per 9 Inningsverified
3.1
3.1
Steve Gromek
Careerverified
Per 9 Inningsverified
3.42
3.42
Dan Jennings
Career
Per 9 Innings
3.96
3.96
Steve Gromek
Career
Per 9 Innings
4.31
4.31
Dan Jennings
Careerverified
Per 9 Inningsverified
3.74
3.74
Steve Gromek
Careerverified
Per 9 Inningsverified
0.243
0.243
Dan Jennings
Career
Per 9 Innings
0.259
0.259
Steve Gromek
Careerverified
Per 9 Innings
6194
27
Dan Jennings
Career
Per 9 Innings
1046
27
Steve Gromek
Careerverified
Per 9 Innings
2064.2
9
Dan Jennings
Career
Per 9 Innings
348.2
9
Steve Gromek
Career
Per 9 Inningsverified
1940
8.46
Dan Jennings
Careerverified
Per 9 Innings
341
8.8
Steve Gromek
Careerverified
Per 9 Inningsverified
8.46
8.46
Dan Jennings
Career
Per 9 Innings
8.8
8.8
Steve Gromek
Career
Per 9 Innings
186
0.81
Dan Jennings
Careerverified
Per 9 Inningsverified
25
0.65
Steve Gromek
Career
Per 9 Innings
0.81
0.81
Dan Jennings
Careerverified
Per 9 Inningsverified
0.65
0.65
Steve Gromek
Career
Per 9 Innings
0.42
0.42
Dan Jennings
Careerverified
Per 9 Inningsverified
0.06
0.06
Steve Gromek
Career
Per 9 Inningsverified
630
2.75
Dan Jennings
Careerverified
Per 9 Innings
157
4.05
Steve Gromek
Careerverified
Per 9 Inningsverified
15
0.07
Dan Jennings
Career
Per 9 Innings
20
0.52
Steve Gromek
Careerverified
Per 9 Inningsverified
2.75
2.75
Dan Jennings
Career
Per 9 Innings
4.05
4.05
Steve Gromek
Careerverified
Per 9 Innings
904
3.94
Dan Jennings
Career
Per 9 Inningsverified
281
7.25
Steve Gromek
Career
Per 9 Innings
3.94
3.94
Dan Jennings
Careerverified
Per 9 Inningsverified
7.25
7.25
Steve Gromek
Careerverified
Per 9 Inningsverified
2.02
2.02
Dan Jennings
Career
Per 9 Innings
0.72
0.72
Steve Gromek
Career
Per 9 Innings
0.743
0.743
Dan Jennings
Careerverified
Per 9 Inningsverified
1.256
1.256
Steve Gromek
Careerverified
Per 9 Inningsverified
18
0.08
Dan Jennings
Career
Per 9 Innings
19
0.49
Steve Gromek
Career
Per 9 Innings
68
0.3
Dan Jennings
Careerverified
Per 9 Inningsverified
8
0.21
Steve Gromek
Career
Per 9 Inningsverified
3
0.01
Dan Jennings
Careerverified
Per 9 Innings
1
0.03
Steve Gromek
Careerverified
Per 9 Innings
8676
37.82
Dan Jennings
Career
Per 9 Inningsverified
1512
39.03
Steve Gromek
Careerverified
Per 9 Innings
110
0.48
Dan Jennings
Career
Per 9 Inningsverified
77
1.99
Steve Gromek
Career
Per 9 Innings
893
3.89
Dan Jennings
Careerverified
Per 9 Inningsverified
141
3.64
Steve Gromek
Career
Per 9 Innings
3.89
3.89
Dan Jennings
Careerverified
Per 9 Inningsverified
3.64
3.64
Steve Gromek
Careerverified
Per 9 Inningsverified
0
0
Dan Jennings
Career
Per 9 Innings
12
0.31
Steve Gromek
Careerverified
Per 9 Inningsverified
0
0
Dan Jennings
Career
Per 9 Innings
16
0.41
Steve Gromek
Career
Per 9 Innings
0
0
Dan Jennings
Careerverified
Per 9 Inningsverified
46
1.19
Steve Gromek
Careerverified
Per 9 Inningsverified
1.245
1.245
Dan Jennings
Career
Per 9 Innings
1.428
1.428
Steve Gromek
Careerverified
Per 9 Inningsverified
7978
34.78
Dan Jennings
Career
Per 9 Innings
1319
34.05
Steve Gromek
Career
Per 9 Innings
2
2
Dan Jennings
Careerverified
Per 9 Inningsverified
0.36
0.36
Steve Gromek
Careerverified
Per 9 Inningsverified
0.255
0.255
Dan Jennings
Career
Per 9 Innings
0.312
0.312
Steve Gromek
Career
Per 9 Innings
37.82
37.82
Dan Jennings
Careerverified
Per 9 Inningsverified
39.03
39.03

Fielding Stats for Steve Gromek and Dan Jennings

Steve Gromek
Careerverified
Per 9 Inningsverified
17
17
Dan Jennings
Career
Per 9 Innings
8
8
Steve Gromek
Careerverified
Per 9 Innings
447
6.73
Dan Jennings
Career
Per 9 Inningsverified
390
10.07
Steve Gromek
Careerverified
Per 9 Inningsverified
71
1.07
Dan Jennings
Career
Per 9 Innings
1
0.03
Steve Gromek
Careerverified
Per 9 Innings
1794
27
Dan Jennings
Career
Per 9 Innings
1046
27
Steve Gromek
Careerverified
Per 9 Innings
598
9
Dan Jennings
Career
Per 9 Innings
348.2
9
Steve Gromek
Careerverified
Per 9 Inningsverified
126
1.9
Dan Jennings
Career
Per 9 Innings
18
0.46
Steve Gromek
Careerverified
Per 9 Inningsverified
248
3.73
Dan Jennings
Career
Per 9 Innings
54
1.39
Steve Gromek
Career
Per 9 Innings
13
0.2
Dan Jennings
Careerverified
Per 9 Inningsverified
4
0.1
Steve Gromek
Careerverified
Per 9 Inningsverified
387
5.82
Dan Jennings
Career
Per 9 Innings
76
1.96
Steve Gromek
Careerverified
Per 9 Inningsverified
374
5.63
Dan Jennings
Career
Per 9 Innings
72
1.86
Steve Gromek
Careerverified
Per 9 Inningsverified
96.64
96.64
Dan Jennings
Career
Per 9 Innings
94.74
94.74
Steve Gromek
Careerverified
Per 9 Inningsverified
0.837
0.837
Dan Jennings
Career
Per 9 Innings
0.185
0.185
Steve Gromek
Careerverified
Per 9 Inningsverified
15.88
15.88
Dan Jennings
Career
Per 9 Innings
0.26
0.26
Steve Gromek
Careerverified
Per 9 Inningsverified
20
0.3
Dan Jennings
Career
Per 9 Innings
2
0.05
Steve Gromek
Career
Per 9 Innings
0
0
Dan Jennings
Career
Per 9 Innings
0
0
Steve Gromek
Career
Per 9 Innings
0
0
Dan Jennings
Career
Per 9 Innings
0
0
Steve Gromek
Career
Per 9 Innings
0
0
Dan Jennings
Career
Per 9 Innings
0
0
Steve Gromek
Career
Per 9 Innings
0
0
Dan Jennings
Career
Per 9 Innings
0
0

Hitting Stats for Steve Gromek and Dan Jennings

Steve Gromek
Careerverified
Per 600 PAverified
17
17
Dan Jennings
Career
Per 600 PA
8
8
Steve Gromek
Careerverified
Per 600 PA
470
380.05
Dan Jennings
Career
Per 600 PAverified
390
58500
Steve Gromek
Careerverified
Per 600 PA
742
600
Dan Jennings
Career
Per 600 PA
4
600
Steve Gromek
Careerverified
Per 600 PA
630
509.43
Dan Jennings
Career
Per 600 PAverified
4
600
Steve Gromek
Career
Per 600 PA
0.197
0.197
Dan Jennings
Careerverified
Per 600 PAverified
0.5
0.5
Steve Gromek
Career
Per 600 PA
0.553
0.553
Dan Jennings
Careerverified
Per 600 PAverified
1.25
1.25
Steve Gromek
Careerverified
Per 600 PA
124
100.27
Dan Jennings
Career
Per 600 PAverified
2
300
Steve Gromek
Careerverified
Per 600 PA
113
91.37
Dan Jennings
Career
Per 600 PAverified
1
150
Steve Gromek
Careerverified
Per 600 PA
9
7.28
Dan Jennings
Career
Per 600 PAverified
1
150
Steve Gromek
Careerverified
Per 600 PAverified
2
1.62
Dan Jennings
Career
Per 600 PA
0
0
Steve Gromek
Career
Per 600 PA
0
0
Dan Jennings
Career
Per 600 PA
0
0
Steve Gromek
Careerverified
Per 600 PA
11
8.89
Dan Jennings
Career
Per 600 PAverified
1
150
Steve Gromek
Career
Per 600 PA
0.089
0.089
Dan Jennings
Careerverified
Per 600 PAverified
0.5
0.5
Steve Gromek
Career
Per 600 PA
0
0
Dan Jennings
Career
Per 600 PA
0
0
Steve Gromek
Career
Per 600 PA
0
0
Dan Jennings
Career
Per 600 PA
0
0
Steve Gromek
Careerverified
Per 600 PA
38.33
30.99
Dan Jennings
Career
Per 600 PAverified
1.25
186.79
Steve Gromek
Careerverified
Per 600 PA
137
110.78
Dan Jennings
Career
Per 600 PAverified
3
450
Steve Gromek
Careerverified
Per 600 PA
196
158.49
Dan Jennings
Career
Per 600 PAverified
2
300
Steve Gromek
Career
Per 600 PA
0.279
0.279
Dan Jennings
Careerverified
Per 600 PAverified
0.5
0.5
Steve Gromek
Career
Per 600 PA
0.218
0.218
Dan Jennings
Careerverified
Per 600 PAverified
0.75
0.75
Steve Gromek
Career
Per 600 PA
0.497
0.497
Dan Jennings
Careerverified
Per 600 PAverified
1.25
1.25
Steve Gromek
Career
Per 600 PA
0.021
0.021
Dan Jennings
Careerverified
Per 600 PAverified
0.25
0.25
Steve Gromek
Career
Per 600 PA
0.18
0.18
Dan Jennings
Careerverified
Per 600 PAverified
0.413
0.413
Steve Gromek
Career
Per 600 PA
0.407
0.407
Dan Jennings
Careerverified
Per 600 PAverified
1.5
1.5
Steve Gromek
Career
Per 600 PA
0.256
0.256
Dan Jennings
Careerverified
Per 600 PAverified
0.667
0.667
Steve Gromek
Careerverified
Per 600 PA
58
46.9
Dan Jennings
Career
Per 600 PAverified
1
150
Steve Gromek
Careerverified
Per 600 PAverified
40
32.35
Dan Jennings
Career
Per 600 PA
0
0
Steve Gromek
Careerverified
Per 600 PA
98
79.25
Dan Jennings
Career
Per 600 PAverified
1
150
Steve Gromek
Careerverified
Per 600 PA
45.09
36.46
Dan Jennings
Career
Per 600 PAverified
1.2
180.17
Steve Gromek
Careerverified
Per 600 PAverified
1
0.81
Dan Jennings
Career
Per 600 PA
0
0
Steve Gromek
Careerverified
Per 600 PAverified
71
57.41
Dan Jennings
Career
Per 600 PA
0
0
Steve Gromek
Career
Per 600 PA
0
0
Dan Jennings
Career
Per 600 PA
0
0
Steve Gromek
Career
Per 600 PAverified
146
118.06
Dan Jennings
Careerverified
Per 600 PA
1
150
Steve Gromek
Careerverified
Per 600 PAverified
5.08
5.08
Dan Jennings
Career
Per 600 PA
4
4
Steve Gromek
Careerverified
Per 600 PAverified
0.49
0.49
Dan Jennings
Career
Per 600 PA
0
0
Steve Gromek
Careerverified
Per 600 PAverified
40
32.35
Dan Jennings
Career
Per 600 PA
0
0
Steve Gromek
Career
Per 600 PA
0
0
Dan Jennings
Career
Per 600 PA
0
0
Steve Gromek
Career
Per 600 PA
13
10.51
Dan Jennings
Careerverified
Per 600 PAverified
0
0
Steve Gromek
Careerverified
Per 600 PAverified
2
1.62
Dan Jennings
Career
Per 600 PA
0
0
Steve Gromek
Career
Per 600 PA
0
0
Dan Jennings
Career
Per 600 PA
0
0
Steve Gromek
Careerverified
Per 600 PAverified
2
1.62
Dan Jennings
Career
Per 600 PA
0
0
Steve Gromek
Careerverified
Per 600 PAverified
100
100
Dan Jennings
Career
Per 600 PA