Mike Marshall vs. Bob O'Brien — Career Comparison

Mike Marshall
Silent GenerationMichiganThrows RightBats RightNorth AmericaMontreal ExposNational LeagueRelief PitcherCy Young AwardAll-Star
Bob O'Brien
Baby BoomersPennsylvaniaThrows LeftBats LeftNorth AmericaLos Angeles DodgersNational LeagueStarting Pitcher

Bob O'Brien 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. Bob O'Brien posted stronger surface numbers — ERA 3 and WHIP 1.333 compared to 3.14 and 1.332 for Mike Marshall. By the career numbers, Bob O'Brien had the better of this cross-role comparison — though era context would sharpen the verdict.

Pitching Stats for Mike Marshall and Bob O'Brien

Mike Marshall
Careerverified
Per 9 Inningsverified
14
14
Bob O'Brien
Career
Per 9 Innings
1
1
Mike Marshall
Careerverified
Per 9 Inningsverified
724
4.7
Bob O'Brien
Career
Per 9 Innings
14
3
Mike Marshall
Careerverified
Per 9 Innings
24
0.16
Bob O'Brien
Career
Per 9 Inningsverified
4
0.86
Mike Marshall
Careerverified
Per 9 Inningsverified
97
0.63
Bob O'Brien
Career
Per 9 Innings
2
0.43
Mike Marshall
Career
Per 9 Innings
112
0.73
Bob O'Brien
Careerverified
Per 9 Inningsverified
2
0.43
Mike Marshall
Career
Per 9 Innings
46.41
46.41
Bob O'Brien
Careerverified
Per 9 Inningsverified
50
50
Mike Marshall
Career
Per 9 Innings
3.31
3.31
Bob O'Brien
Careerverified
Per 9 Inningsverified
28.57
28.57
Mike Marshall
Careerverified
Per 9 Innings
3
0.02
Bob O'Brien
Career
Per 9 Inningsverified
1
0.21
Mike Marshall
Career
Per 9 Innings
1
0.01
Bob O'Brien
Career
Per 9 Inningsverified
1
0.21
Mike Marshall
Careerverified
Per 9 Inningsverified
188
1.22
Bob O'Brien
Career
Per 9 Innings
0
0
Mike Marshall
Career
Per 9 Innings
484
3.14
Bob O'Brien
Careerverified
Per 9 Inningsverified
14
3
Mike Marshall
Career
Per 9 Innings
3.14
3.14
Bob O'Brien
Careerverified
Per 9 Inningsverified
3
3
Mike Marshall
Careerverified
Per 9 Inningsverified
3.29
3.29
Bob O'Brien
Career
Per 9 Innings
3.78
3.78
Mike Marshall
Careerverified
Per 9 Inningsverified
3.65
3.65
Bob O'Brien
Career
Per 9 Innings
4.52
4.52
Mike Marshall
Careerverified
Per 9 Inningsverified
0.249
0.249
Bob O'Brien
Career
Per 9 Innings
0.263
0.263
Mike Marshall
Careerverified
Per 9 Innings
4160
27
Bob O'Brien
Career
Per 9 Innings
126
27
Mike Marshall
Careerverified
Per 9 Innings
1386.2
9
Bob O'Brien
Career
Per 9 Innings
42
9
Mike Marshall
Career
Per 9 Inningsverified
1281
8.31
Bob O'Brien
Careerverified
Per 9 Innings
42
9
Mike Marshall
Careerverified
Per 9 Inningsverified
8.31
8.31
Bob O'Brien
Career
Per 9 Innings
9
9
Mike Marshall
Career
Per 9 Inningsverified
79
0.51
Bob O'Brien
Careerverified
Per 9 Innings
4
0.86
Mike Marshall
Careerverified
Per 9 Inningsverified
0.51
0.51
Bob O'Brien
Career
Per 9 Innings
0.86
0.86
Mike Marshall
Careerverified
Per 9 Inningsverified
0.11
0.11
Bob O'Brien
Career
Per 9 Innings
0.29
0.29
Mike Marshall
Career
Per 9 Innings
514
3.34
Bob O'Brien
Careerverified
Per 9 Inningsverified
13
2.79
Mike Marshall
Career
Per 9 Innings
52
0.34
Bob O'Brien
Careerverified
Per 9 Inningsverified
1
0.21
Mike Marshall
Career
Per 9 Innings
3.34
3.34
Bob O'Brien
Careerverified
Per 9 Inningsverified
2.79
2.79
Mike Marshall
Careerverified
Per 9 Inningsverified
880
5.71
Bob O'Brien
Career
Per 9 Innings
15
3.21
Mike Marshall
Careerverified
Per 9 Inningsverified
5.71
5.71
Bob O'Brien
Career
Per 9 Innings
3.21
3.21
Mike Marshall
Careerverified
Per 9 Inningsverified
1.22
1.22
Bob O'Brien
Career
Per 9 Innings
1.07
1.07
Mike Marshall
Careerverified
Per 9 Inningsverified
1.005
1.005
Bob O'Brien
Career
Per 9 Innings
0.667
0.667
Mike Marshall
Career
Per 9 Inningsverified
72
0.47
Bob O'Brien
Careerverified
Per 9 Innings
5
1.07
Mike Marshall
Career
Per 9 Inningsverified
31
0.2
Bob O'Brien
Careerverified
Per 9 Innings
1
0.21
Mike Marshall
Career
Per 9 Inningsverified
7
0.05
Bob O'Brien
Careerverified
Per 9 Innings
2
0.43
Mike Marshall
Careerverified
Per 9 Innings
5842
37.92
Bob O'Brien
Career
Per 9 Inningsverified
177
37.93
Mike Marshall
Careerverified
Per 9 Inningsverified
549
3.56
Bob O'Brien
Career
Per 9 Innings
5
1.07
Mike Marshall
Career
Per 9 Inningsverified
548
3.56
Bob O'Brien
Careerverified
Per 9 Innings
18
3.86
Mike Marshall
Careerverified
Per 9 Inningsverified
3.56
3.56
Bob O'Brien
Career
Per 9 Innings
3.86
3.86
Mike Marshall
Career
Per 9 Innings
115
0.75
Bob O'Brien
Careerverified
Per 9 Inningsverified
2
0.43
Mike Marshall
Career
Per 9 Innings
37
0.24
Bob O'Brien
Careerverified
Per 9 Inningsverified
1
0.21
Mike Marshall
Careerverified
Per 9 Inningsverified
90
0.58
Bob O'Brien
Career
Per 9 Innings
0
0
Mike Marshall
Careerverified
Per 9 Inningsverified
1.295
1.295
Bob O'Brien
Career
Per 9 Innings
1.31
1.31
Mike Marshall
Careerverified
Per 9 Innings
5145
33.39
Bob O'Brien
Career
Per 9 Inningsverified
160
34.29
Mike Marshall
Careerverified
Per 9 Inningsverified
0.76
0.76
Bob O'Brien
Career
Per 9 Innings
1.29
1.29
Mike Marshall
Career
Per 9 Innings
0.287
0.287
Bob O'Brien
Careerverified
Per 9 Inningsverified
0.27
0.27
Mike Marshall
Career
Per 9 Innings
37.92
37.92
Bob O'Brien
Careerverified
Per 9 Inningsverified
37.93
37.93

Fielding Stats for Mike Marshall and Bob O'Brien

Mike Marshall
Careerverified
Per 9 Inningsverified
14
14
Bob O'Brien
Career
Per 9 Innings
1
1
Mike Marshall
Careerverified
Per 9 Inningsverified
724
4.7
Bob O'Brien
Career
Per 9 Innings
14
3
Mike Marshall
Careerverified
Per 9 Innings
24
0.16
Bob O'Brien
Career
Per 9 Inningsverified
4
0.86
Mike Marshall
Careerverified
Per 9 Innings
4159
27
Bob O'Brien
Career
Per 9 Innings
126
27
Mike Marshall
Careerverified
Per 9 Innings
1386.1
9
Bob O'Brien
Career
Per 9 Innings
42
9
Mike Marshall
Careerverified
Per 9 Inningsverified
105
0.68
Bob O'Brien
Career
Per 9 Innings
1
0.21
Mike Marshall
Careerverified
Per 9 Inningsverified
283
1.84
Bob O'Brien
Career
Per 9 Innings
3
0.64
Mike Marshall
Career
Per 9 Innings
15
0.1
Bob O'Brien
Careerverified
Per 9 Inningsverified
0
0
Mike Marshall
Careerverified
Per 9 Inningsverified
403
2.62
Bob O'Brien
Career
Per 9 Innings
4
0.86
Mike Marshall
Careerverified
Per 9 Inningsverified
388
2.52
Bob O'Brien
Career
Per 9 Innings
4
0.86
Mike Marshall
Career
Per 9 Innings
96.28
96.28
Bob O'Brien
Careerverified
Per 9 Inningsverified
100
100
Mike Marshall
Careerverified
Per 9 Inningsverified
0.536
0.536
Bob O'Brien
Career
Per 9 Innings
0.286
0.286
Mike Marshall
Career
Per 9 Innings
3.31
3.31
Bob O'Brien
Careerverified
Per 9 Inningsverified
28.57
28.57
Mike Marshall
Careerverified
Per 9 Inningsverified
25
0.16
Bob O'Brien
Career
Per 9 Innings
0
0
Mike Marshall
Career
Per 9 Innings
0
0
Bob O'Brien
Career
Per 9 Innings
0
0
Mike Marshall
Career
Per 9 Innings
0
0
Bob O'Brien
Career
Per 9 Innings
0
0
Mike Marshall
Career
Per 9 Innings
0
0
Bob O'Brien
Career
Per 9 Innings
0
0
Mike Marshall
Career
Per 9 Innings
0
0
Bob O'Brien
Career
Per 9 Innings
0
0

Hitting Stats for Mike Marshall and Bob O'Brien

Mike Marshall
Careerverified
Per 600 PAverified
14
14
Bob O'Brien
Career
Per 600 PA
1
1
Mike Marshall
Careerverified
Per 600 PAverified
725
2004.61
Bob O'Brien
Career
Per 600 PA
14
763.64
Mike Marshall
Careerverified
Per 600 PA
217
600
Bob O'Brien
Career
Per 600 PA
11
600
Mike Marshall
Careerverified
Per 600 PAverified
179
494.93
Bob O'Brien
Career
Per 600 PA
9
490.91
Mike Marshall
Careerverified
Per 600 PAverified
0.196
0.196
Bob O'Brien
Career
Per 600 PA
0.111
0.111
Mike Marshall
Careerverified
Per 600 PAverified
0.558
0.558
Bob O'Brien
Career
Per 600 PA
0.364
0.364
Mike Marshall
Careerverified
Per 600 PAverified
35
96.77
Bob O'Brien
Career
Per 600 PA
1
54.55
Mike Marshall
Careerverified
Per 600 PAverified
33
91.24
Bob O'Brien
Career
Per 600 PA
1
54.55
Mike Marshall
Careerverified
Per 600 PAverified
1
2.76
Bob O'Brien
Career
Per 600 PA
0
0
Mike Marshall
Career
Per 600 PA
0
0
Bob O'Brien
Career
Per 600 PA
0
0
Mike Marshall
Careerverified
Per 600 PAverified
1
2.76
Bob O'Brien
Career
Per 600 PA
0
0
Mike Marshall
Careerverified
Per 600 PAverified
2
5.53
Bob O'Brien
Career
Per 600 PA
0
0
Mike Marshall
Careerverified
Per 600 PAverified
0.057
0.057
Bob O'Brien
Career
Per 600 PA
0
0
Mike Marshall
Careerverified
Per 600 PAverified
0.006
0.006
Bob O'Brien
Career
Per 600 PA
0
0
Mike Marshall
Careerverified
Per 600 PAverified
0.029
0.029
Bob O'Brien
Career
Per 600 PA
0
0
Mike Marshall
Careerverified
Per 600 PAverified
10.74
29.7
Bob O'Brien
Career
Per 600 PA
0.1
5.41
Mike Marshall
Careerverified
Per 600 PAverified
39
107.83
Bob O'Brien
Career
Per 600 PA
1
54.55
Mike Marshall
Careerverified
Per 600 PAverified
53
146.54
Bob O'Brien
Career
Per 600 PA
1
54.55
Mike Marshall
Careerverified
Per 600 PAverified
0.266
0.266
Bob O'Brien
Career
Per 600 PA
0.111
0.111
Mike Marshall
Careerverified
Per 600 PAverified
0.218
0.218
Bob O'Brien
Career
Per 600 PA
0.111
0.111
Mike Marshall
Careerverified
Per 600 PAverified
0.484
0.484
Bob O'Brien
Career
Per 600 PA
0.222
0.222
Mike Marshall
Careerverified
Per 600 PAverified
0.022
0.022
Bob O'Brien
Career
Per 600 PA
0
0
Mike Marshall
Careerverified
Per 600 PAverified
0.174
0.174
Bob O'Brien
Career
Per 600 PA
0.078
0.078
Mike Marshall
Careerverified
Per 600 PAverified
0.39
0.39
Bob O'Brien
Career
Per 600 PA
0.125
0.125
Mike Marshall
Careerverified
Per 600 PAverified
0.231
0.231
Bob O'Brien
Career
Per 600 PA
0.111
0.111
Mike Marshall
Careerverified
Per 600 PAverified
11
30.41
Bob O'Brien
Career
Per 600 PA
0
0
Mike Marshall
Careerverified
Per 600 PAverified
16
44.24
Bob O'Brien
Career
Per 600 PA
0
0
Mike Marshall
Careerverified
Per 600 PAverified
26
71.89
Bob O'Brien
Career
Per 600 PA
0
0
Mike Marshall
Careerverified
Per 600 PAverified
12.99
35.91
Bob O'Brien
Career
Per 600 PA
-0.15
-8.09
Mike Marshall
Careerverified
Per 600 PAverified
1
2.76
Bob O'Brien
Career
Per 600 PA
0
0
Mike Marshall
Careerverified
Per 600 PAverified
17
47
Bob O'Brien
Career
Per 600 PA
0
0
Mike Marshall
Career
Per 600 PA
0
0
Bob O'Brien
Career
Per 600 PA
0
0
Mike Marshall
Career
Per 600 PA
33
91.24
Bob O'Brien
Careerverified
Per 600 PAverified
0
0
Mike Marshall
Careerverified
Per 600 PAverified
6.58
6.58
Bob O'Brien
Career
Per 600 PA
Mike Marshall
Careerverified
Per 600 PAverified
0.52
0.52
Bob O'Brien
Career
Per 600 PA
Mike Marshall
Careerverified
Per 600 PA
18
49.77
Bob O'Brien
Career
Per 600 PAverified
2
109.09
Mike Marshall
Careerverified
Per 600 PAverified
2
5.53
Bob O'Brien
Career
Per 600 PA
0
0
Mike Marshall
Career
Per 600 PA
2
5.53
Bob O'Brien
Careerverified
Per 600 PAverified
0
0
Mike Marshall
Career
Per 600 PA
0
0
Bob O'Brien
Career
Per 600 PA
0
0
Mike Marshall
Career
Per 600 PA
0
0
Bob O'Brien
Career
Per 600 PA
0
0
Mike Marshall
Career
Per 600 PA
0
0
Bob O'Brien
Career
Per 600 PA
0
0
Mike Marshall
Career
Per 600 PA
Bob O'Brien
Career
Per 600 PA