Mike Marshall vs. Mike O'Connor — Career Comparison

Mike Marshall
Silent GenerationMichiganThrows RightBats RightNorth AmericaMontreal ExposNational LeagueRelief PitcherCy Young AwardAll-Star
Mike O'Connor
Gen XTexasThrows LeftBats LeftNorth AmericaWashington NationalsNational LeagueStarting Pitcher

Mike O'Connor built a career as a starting pitcher and Mike Marshall as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Mike Marshall posted stronger surface numbers — ERA 3.14 and WHIP 1.332 compared to 5.3 and 1.459 for Mike O'Connor. By the career numbers, Mike Marshall had the better of this cross-role comparison — though era context would sharpen the verdict.

Pitching Stats for Mike Marshall and Mike O'Connor

Mike Marshall
Careerverified
Per 9 Inningsverified
14
14
Mike O'Connor
Career
Per 9 Innings
3
3
Mike Marshall
Careerverified
Per 9 Inningsverified
724
4.7
Mike O'Connor
Career
Per 9 Innings
35
2.61
Mike Marshall
Careerverified
Per 9 Innings
24
0.16
Mike O'Connor
Career
Per 9 Inningsverified
21
1.57
Mike Marshall
Careerverified
Per 9 Inningsverified
97
0.63
Mike O'Connor
Career
Per 9 Innings
4
0.3
Mike Marshall
Career
Per 9 Inningsverified
112
0.73
Mike O'Connor
Careerverified
Per 9 Innings
10
0.75
Mike Marshall
Careerverified
Per 9 Inningsverified
46.41
46.41
Mike O'Connor
Career
Per 9 Innings
28.57
28.57
Mike Marshall
Career
Per 9 Innings
3.31
3.31
Mike O'Connor
Careerverified
Per 9 Inningsverified
60
60
Mike Marshall
Careerverified
Per 9 Inningsverified
3
0.02
Mike O'Connor
Career
Per 9 Innings
0
0
Mike Marshall
Careerverified
Per 9 Inningsverified
1
0.01
Mike O'Connor
Career
Per 9 Innings
0
0
Mike Marshall
Careerverified
Per 9 Inningsverified
188
1.22
Mike O'Connor
Career
Per 9 Innings
0
0
Mike Marshall
Career
Per 9 Inningsverified
484
3.14
Mike O'Connor
Careerverified
Per 9 Innings
71
5.3
Mike Marshall
Careerverified
Per 9 Inningsverified
3.14
3.14
Mike O'Connor
Career
Per 9 Innings
5.3
5.3
Mike Marshall
Careerverified
Per 9 Inningsverified
3.29
3.29
Mike O'Connor
Career
Per 9 Innings
4.55
4.55
Mike Marshall
Careerverified
Per 9 Inningsverified
3.65
3.65
Mike O'Connor
Career
Per 9 Innings
5.43
5.43
Mike Marshall
Career
Per 9 Innings
0.249
0.249
Mike O'Connor
Careerverified
Per 9 Inningsverified
0.248
0.248
Mike Marshall
Careerverified
Per 9 Innings
4160
27
Mike O'Connor
Career
Per 9 Innings
362
27
Mike Marshall
Careerverified
Per 9 Innings
1386.2
9
Mike O'Connor
Career
Per 9 Innings
120.2
9
Mike Marshall
Career
Per 9 Inningsverified
1281
8.31
Mike O'Connor
Careerverified
Per 9 Innings
112
8.35
Mike Marshall
Careerverified
Per 9 Inningsverified
8.31
8.31
Mike O'Connor
Career
Per 9 Innings
8.35
8.35
Mike Marshall
Career
Per 9 Inningsverified
79
0.51
Mike O'Connor
Careerverified
Per 9 Innings
18
1.34
Mike Marshall
Careerverified
Per 9 Inningsverified
0.51
0.51
Mike O'Connor
Career
Per 9 Innings
1.34
1.34
Mike Marshall
Careerverified
Per 9 Inningsverified
0.11
0.11
Mike O'Connor
Career
Per 9 Innings
0.51
0.51
Mike Marshall
Career
Per 9 Inningsverified
514
3.34
Mike O'Connor
Careerverified
Per 9 Innings
59
4.4
Mike Marshall
Career
Per 9 Inningsverified
52
0.34
Mike O'Connor
Careerverified
Per 9 Innings
5
0.37
Mike Marshall
Careerverified
Per 9 Inningsverified
3.34
3.34
Mike O'Connor
Career
Per 9 Innings
4.4
4.4
Mike Marshall
Careerverified
Per 9 Inningsverified
880
5.71
Mike O'Connor
Career
Per 9 Innings
71
5.3
Mike Marshall
Careerverified
Per 9 Inningsverified
5.71
5.71
Mike O'Connor
Career
Per 9 Innings
5.3
5.3
Mike Marshall
Career
Per 9 Innings
1.22
1.22
Mike O'Connor
Careerverified
Per 9 Inningsverified
2.03
2.03
Mike Marshall
Career
Per 9 Innings
1.005
1.005
Mike O'Connor
Careerverified
Per 9 Inningsverified
1.077
1.077
Mike Marshall
Career
Per 9 Inningsverified
72
0.47
Mike O'Connor
Careerverified
Per 9 Innings
10
0.75
Mike Marshall
Career
Per 9 Inningsverified
31
0.2
Mike O'Connor
Careerverified
Per 9 Innings
8
0.6
Mike Marshall
Career
Per 9 Innings
7
0.05
Mike O'Connor
Careerverified
Per 9 Inningsverified
0
0
Mike Marshall
Careerverified
Per 9 Innings
5842
37.92
Mike O'Connor
Career
Per 9 Inningsverified
532
39.68
Mike Marshall
Careerverified
Per 9 Inningsverified
549
3.56
Mike O'Connor
Career
Per 9 Innings
2
0.15
Mike Marshall
Career
Per 9 Inningsverified
548
3.56
Mike O'Connor
Careerverified
Per 9 Innings
76
5.67
Mike Marshall
Careerverified
Per 9 Inningsverified
3.56
3.56
Mike O'Connor
Career
Per 9 Innings
5.67
5.67
Mike Marshall
Career
Per 9 Innings
115
0.75
Mike O'Connor
Careerverified
Per 9 Inningsverified
8
0.6
Mike Marshall
Career
Per 9 Inningsverified
37
0.24
Mike O'Connor
Careerverified
Per 9 Innings
5
0.37
Mike Marshall
Careerverified
Per 9 Innings
90
0.58
Mike O'Connor
Career
Per 9 Inningsverified
9
0.67
Mike Marshall
Careerverified
Per 9 Inningsverified
1.295
1.295
Mike O'Connor
Career
Per 9 Innings
1.417
1.417
Mike Marshall
Careerverified
Per 9 Innings
5145
33.39
Mike O'Connor
Career
Per 9 Inningsverified
452
33.71
Mike Marshall
Careerverified
Per 9 Inningsverified
0.76
0.76
Mike O'Connor
Career
Per 9 Innings
2.17
2.17
Mike Marshall
Career
Per 9 Innings
0.287
0.287
Mike O'Connor
Careerverified
Per 9 Inningsverified
0.259
0.259
Mike Marshall
Career
Per 9 Innings
37.92
37.92
Mike O'Connor
Careerverified
Per 9 Inningsverified
39.68
39.68

Fielding Stats for Mike Marshall and Mike O'Connor

Mike Marshall
Careerverified
Per 9 Inningsverified
14
14
Mike O'Connor
Career
Per 9 Innings
3
3
Mike Marshall
Careerverified
Per 9 Inningsverified
724
4.7
Mike O'Connor
Career
Per 9 Innings
35
2.61
Mike Marshall
Careerverified
Per 9 Innings
24
0.16
Mike O'Connor
Career
Per 9 Inningsverified
21
1.57
Mike Marshall
Careerverified
Per 9 Innings
4159
27
Mike O'Connor
Career
Per 9 Innings
362
27
Mike Marshall
Careerverified
Per 9 Innings
1386.1
9
Mike O'Connor
Career
Per 9 Innings
120.2
9
Mike Marshall
Careerverified
Per 9 Inningsverified
105
0.68
Mike O'Connor
Career
Per 9 Innings
4
0.3
Mike Marshall
Careerverified
Per 9 Inningsverified
283
1.84
Mike O'Connor
Career
Per 9 Innings
10
0.75
Mike Marshall
Career
Per 9 Innings
15
0.1
Mike O'Connor
Careerverified
Per 9 Inningsverified
1
0.07
Mike Marshall
Careerverified
Per 9 Inningsverified
403
2.62
Mike O'Connor
Career
Per 9 Innings
15
1.12
Mike Marshall
Careerverified
Per 9 Inningsverified
388
2.52
Mike O'Connor
Career
Per 9 Innings
14
1.04
Mike Marshall
Careerverified
Per 9 Inningsverified
96.28
96.28
Mike O'Connor
Career
Per 9 Innings
93.33
93.33
Mike Marshall
Careerverified
Per 9 Inningsverified
0.536
0.536
Mike O'Connor
Career
Per 9 Innings
0.4
0.4
Mike Marshall
Career
Per 9 Innings
3.31
3.31
Mike O'Connor
Careerverified
Per 9 Inningsverified
60
60
Mike Marshall
Careerverified
Per 9 Inningsverified
25
0.16
Mike O'Connor
Career
Per 9 Innings
0
0
Mike Marshall
Career
Per 9 Innings
0
0
Mike O'Connor
Career
Per 9 Innings
0
0
Mike Marshall
Career
Per 9 Innings
0
0
Mike O'Connor
Career
Per 9 Innings
0
0
Mike Marshall
Career
Per 9 Innings
0
0
Mike O'Connor
Career
Per 9 Innings
0
0
Mike Marshall
Career
Per 9 Innings
0
0
Mike O'Connor
Career
Per 9 Innings
0
0

Hitting Stats for Mike Marshall and Mike O'Connor

Mike Marshall
Careerverified
Per 600 PAverified
14
14
Mike O'Connor
Career
Per 600 PA
3
3
Mike Marshall
Careerverified
Per 600 PAverified
725
2004.61
Mike O'Connor
Career
Per 600 PA
35
600
Mike Marshall
Careerverified
Per 600 PA
217
600
Mike O'Connor
Career
Per 600 PA
35
600
Mike Marshall
Careerverified
Per 600 PA
179
494.93
Mike O'Connor
Career
Per 600 PAverified
33
565.71
Mike Marshall
Careerverified
Per 600 PAverified
0.196
0.196
Mike O'Connor
Career
Per 600 PA
0.061
0.061
Mike Marshall
Careerverified
Per 600 PAverified
0.558
0.558
Mike O'Connor
Career
Per 600 PA
0.186
0.186
Mike Marshall
Careerverified
Per 600 PAverified
35
96.77
Mike O'Connor
Career
Per 600 PA
2
34.29
Mike Marshall
Careerverified
Per 600 PAverified
33
91.24
Mike O'Connor
Career
Per 600 PA
2
34.29
Mike Marshall
Careerverified
Per 600 PAverified
1
2.76
Mike O'Connor
Career
Per 600 PA
0
0
Mike Marshall
Career
Per 600 PA
0
0
Mike O'Connor
Career
Per 600 PA
0
0
Mike Marshall
Careerverified
Per 600 PAverified
1
2.76
Mike O'Connor
Career
Per 600 PA
0
0
Mike Marshall
Careerverified
Per 600 PAverified
2
5.53
Mike O'Connor
Career
Per 600 PA
0
0
Mike Marshall
Careerverified
Per 600 PAverified
0.057
0.057
Mike O'Connor
Career
Per 600 PA
0
0
Mike Marshall
Careerverified
Per 600 PAverified
0.006
0.006
Mike O'Connor
Career
Per 600 PA
0
0
Mike Marshall
Careerverified
Per 600 PAverified
0.029
0.029
Mike O'Connor
Career
Per 600 PA
0
0
Mike Marshall
Careerverified
Per 600 PAverified
10.74
29.7
Mike O'Connor
Career
Per 600 PA
0.17
2.93
Mike Marshall
Careerverified
Per 600 PAverified
39
107.83
Mike O'Connor
Career
Per 600 PA
2
34.29
Mike Marshall
Careerverified
Per 600 PAverified
53
146.54
Mike O'Connor
Career
Per 600 PA
3
51.43
Mike Marshall
Careerverified
Per 600 PAverified
0.266
0.266
Mike O'Connor
Career
Per 600 PA
0.088
0.088
Mike Marshall
Careerverified
Per 600 PAverified
0.218
0.218
Mike O'Connor
Career
Per 600 PA
0.061
0.061
Mike Marshall
Careerverified
Per 600 PAverified
0.484
0.484
Mike O'Connor
Career
Per 600 PA
0.149
0.149
Mike Marshall
Careerverified
Per 600 PAverified
0.022
0.022
Mike O'Connor
Career
Per 600 PA
0
0
Mike Marshall
Careerverified
Per 600 PAverified
0.174
0.174
Mike O'Connor
Career
Per 600 PA
0.055
0.055
Mike Marshall
Careerverified
Per 600 PAverified
0.39
0.39
Mike O'Connor
Career
Per 600 PA
0.097
0.097
Mike Marshall
Careerverified
Per 600 PAverified
0.231
0.231
Mike O'Connor
Career
Per 600 PA
0.143
0.143
Mike Marshall
Careerverified
Per 600 PA
11
30.41
Mike O'Connor
Career
Per 600 PAverified
2
34.29
Mike Marshall
Careerverified
Per 600 PAverified
16
44.24
Mike O'Connor
Career
Per 600 PA
1
17.14
Mike Marshall
Careerverified
Per 600 PAverified
26
71.89
Mike O'Connor
Career
Per 600 PA
3
51.43
Mike Marshall
Careerverified
Per 600 PAverified
12.99
35.91
Mike O'Connor
Career
Per 600 PA
-1.8
-30.92
Mike Marshall
Careerverified
Per 600 PAverified
1
2.76
Mike O'Connor
Career
Per 600 PA
0
0
Mike Marshall
Careerverified
Per 600 PAverified
17
47
Mike O'Connor
Career
Per 600 PA
1
17.14
Mike Marshall
Career
Per 600 PA
0
0
Mike O'Connor
Career
Per 600 PA
0
0
Mike Marshall
Career
Per 600 PAverified
33
91.24
Mike O'Connor
Careerverified
Per 600 PA
19
325.71
Mike Marshall
Careerverified
Per 600 PAverified
6.58
6.58
Mike O'Connor
Career
Per 600 PA
1.84
1.84
Mike Marshall
Careerverified
Per 600 PAverified
0.52
0.52
Mike O'Connor
Career
Per 600 PA
0.05
0.05
Mike Marshall
Careerverified
Per 600 PAverified
18
49.77
Mike O'Connor
Career
Per 600 PA
1
17.14
Mike Marshall
Careerverified
Per 600 PAverified
2
5.53
Mike O'Connor
Career
Per 600 PA
0
0
Mike Marshall
Career
Per 600 PA
2
5.53
Mike O'Connor
Careerverified
Per 600 PAverified
0
0
Mike Marshall
Career
Per 600 PA
0
0
Mike O'Connor
Career
Per 600 PA
0
0
Mike Marshall
Career
Per 600 PA
0
0
Mike O'Connor
Career
Per 600 PA
0
0
Mike Marshall
Career
Per 600 PA
0
0
Mike O'Connor
Career
Per 600 PA
0
0
Mike Marshall
Career
Per 600 PA
Mike O'Connor
Career
Per 600 PA