Fred Koster vs. Jack O'Brien — Career Comparison

Fred Koster
Greatest GenerationKentuckyThrows LeftBats LeftNorth AmericaPhiladelphia PhilliesNational LeagueUnknown
Jack O'Brien
Pre-GenerationalPennsylvaniaThrows RightBats RightNorth AmericaPhiladelphia AthleticsAmerican AssociationCatcher

On the career numbers, Jack O'Brien posted the stronger offensive profile against Fred Koster. Jack O'Brien posted stronger numbers in OPS (.700 vs .556) and on-base percentage (.331 vs .291). By the career numbers, Jack O'Brien had the stronger overall case — though those totals don't account for the eras and run environments each player worked in.

Hitting Stats for Fred Koster and Jack O'Brien

Fred Koster
Career
Per 600 PA
1
1
Jack O'Brien
Careerverified
Per 600 PAverified
8
8
Fred Koster
Career
Per 600 PAverified
76
268.24
Jack O'Brien
Careerverified
Per 600 PA
555
139.92
Fred Koster
Career
Per 600 PA
170
600
Jack O'Brien
Careerverified
Per 600 PA
2380
600
Fred Koster
Career
Per 600 PA
151
532.94
Jack O'Brien
Careerverified
Per 600 PAverified
2169
546.81
Fred Koster
Career
Per 600 PA
0.225
0.225
Jack O'Brien
Careerverified
Per 600 PAverified
0.266
0.266
Fred Koster
Career
Per 600 PA
0.607
0.607
Jack O'Brien
Careerverified
Per 600 PAverified
0.736
0.736
Fred Koster
Career
Per 600 PA
34
120
Jack O'Brien
Careerverified
Per 600 PAverified
577
145.46
Fred Koster
Career
Per 600 PAverified
30
105.88
Jack O'Brien
Careerverified
Per 600 PA
418
105.38
Fred Koster
Career
Per 600 PA
2
7.06
Jack O'Brien
Careerverified
Per 600 PAverified
106
26.72
Fred Koster
Career
Per 600 PA
2
7.06
Jack O'Brien
Careerverified
Per 600 PAverified
42
10.59
Fred Koster
Career
Per 600 PA
0
0
Jack O'Brien
Careerverified
Per 600 PAverified
11
2.77
Fred Koster
Career
Per 600 PA
4
14.12
Jack O'Brien
Careerverified
Per 600 PAverified
159
40.08
Fred Koster
Career
Per 600 PA
0.118
0.118
Jack O'Brien
Careerverified
Per 600 PAverified
0.276
0.276
Fred Koster
Career
Per 600 PA
0
0
Jack O'Brien
Careerverified
Per 600 PAverified
0.005
0.005
Fred Koster
Career
Per 600 PA
0
0
Jack O'Brien
Careerverified
Per 600 PAverified
0.019
0.019
Fred Koster
Career
Per 600 PA
13.26
46.8
Jack O'Brien
Careerverified
Per 600 PAverified
294.26
74.18
Fred Koster
Career
Per 600 PA
40
141.18
Jack O'Brien
Careerverified
Per 600 PAverified
800
201.68
Fred Koster
Career
Per 600 PA
48
169.41
Jack O'Brien
Careerverified
Per 600 PAverified
788
198.66
Fred Koster
Career
Per 600 PA
0.291
0.291
Jack O'Brien
Careerverified
Per 600 PAverified
0.331
0.331
Fred Koster
Career
Per 600 PA
0.265
0.265
Jack O'Brien
Careerverified
Per 600 PAverified
0.369
0.369
Fred Koster
Career
Per 600 PA
0.556
0.556
Jack O'Brien
Careerverified
Per 600 PAverified
0.7
0.7
Fred Koster
Career
Per 600 PA
0.04
0.04
Jack O'Brien
Careerverified
Per 600 PAverified
0.103
0.103
Fred Koster
Career
Per 600 PA
0.197
0.197
Jack O'Brien
Careerverified
Per 600 PAverified
0.241
0.241
Fred Koster
Career
Per 600 PA
0.496
0.496
Jack O'Brien
Careerverified
Per 600 PAverified
0.683
0.683
Fred Koster
Career
Per 600 PA
0.262
0.262
Jack O'Brien
Careerverified
Per 600 PAverified
0.266
0.266
Fred Koster
Career
Per 600 PA
21
74.12
Jack O'Brien
Careerverified
Per 600 PAverified
366
92.27
Fred Koster
Career
Per 600 PA
8
28.24
Jack O'Brien
Careerverified
Per 600 PAverified
308
77.65
Fred Koster
Career
Per 600 PA
29
102.35
Jack O'Brien
Careerverified
Per 600 PAverified
663
167.14
Fred Koster
Career
Per 600 PA
15.26
53.87
Jack O'Brien
Careerverified
Per 600 PAverified
318.06
80.18
Fred Koster
Career
Per 600 PA
0
0
Jack O'Brien
Careerverified
Per 600 PAverified
31
7.82
Fred Koster
Career
Per 600 PAverified
14
49.41
Jack O'Brien
Careerverified
Per 600 PA
180
45.38
Fred Koster
Career
Per 600 PA
0
0
Jack O'Brien
Career
Per 600 PA
0
0
Fred Koster
Careerverified
Per 600 PA
21
74.12
Jack O'Brien
Career
Per 600 PAverified
31
7.82
Fred Koster
Career
Per 600 PA
8.1
8.1
Jack O'Brien
Careerverified
Per 600 PAverified
76.77
76.77
Fred Koster
Career
Per 600 PA
0.67
0.67
Jack O'Brien
Careerverified
Per 600 PAverified
5.81
5.81
Fred Koster
Careerverified
Per 600 PAverified
5
17.65
Jack O'Brien
Career
Per 600 PA
0
0
Fred Koster
Career
Per 600 PA
0
0
Jack O'Brien
Career
Per 600 PA
0
0
Fred Koster
Career
Per 600 PA
0
0
Jack O'Brien
Career
Per 600 PA
0
0
Fred Koster
Career
Per 600 PA
4
14.12
Jack O'Brien
Careerverified
Per 600 PAverified
76
19.16
Fred Koster
Career
Per 600 PA
0
0
Jack O'Brien
Career
Per 600 PA
0
0
Fred Koster
Career
Per 600 PA
4
14.12
Jack O'Brien
Careerverified
Per 600 PAverified
76
19.16
Fred Koster
Career
Per 600 PA
100
100
Jack O'Brien
Career
Per 600 PA
100
100

Fielding Stats for Fred Koster and Jack O'Brien

Fred Koster
Career
Per 9 Innings
1
Jack O'Brien
Careerverified
Per 9 Inningsverified
8
8
Fred Koster
Career
Per 9 Innings
41
Jack O'Brien
Careerverified
Per 9 Inningsverified
573
1.1
Fred Koster
Career
Per 9 Innings
0
Jack O'Brien
Career
Per 9 Innings
0
0
Fred Koster
Career
Per 9 Innings
0
Jack O'Brien
Careerverified
Per 9 Inningsverified
14076
27
Fred Koster
Career
Per 9 Innings
0
Jack O'Brien
Careerverified
Per 9 Inningsverified
4692
9
Fred Koster
Career
Per 9 Innings
80
Jack O'Brien
Careerverified
Per 9 Inningsverified
2908
5.58
Fred Koster
Career
Per 9 Innings
4
Jack O'Brien
Careerverified
Per 9 Inningsverified
619
1.19
Fred Koster
Careerverified
Per 9 Inningsverified
7
Jack O'Brien
Career
Per 9 Innings
311
0.6
Fred Koster
Career
Per 9 Innings
91
Jack O'Brien
Careerverified
Per 9 Inningsverified
3838
7.36
Fred Koster
Career
Per 9 Innings
84
Jack O'Brien
Careerverified
Per 9 Inningsverified
3527
6.77
Fred Koster
Careerverified
Per 9 Innings
92.31
Jack O'Brien
Career
Per 9 Inningsverified
91.9
91.9
Fred Koster
Career
Per 9 Innings
2.049
Jack O'Brien
Careerverified
Per 9 Inningsverified
6.155
6.155
Fred Koster
Career
Per 9 Innings
0
Jack O'Brien
Career
Per 9 Innings
0
0
Fred Koster
Career
Per 9 Innings
1
Jack O'Brien
Careerverified
Per 9 Inningsverified
128
0.25
Fred Koster
Careerverified
Per 9 Inningsverified
0
Jack O'Brien
Career
Per 9 Innings
279
0.54
Fred Koster
Career
Per 9 Innings
0
Jack O'Brien
Career
Per 9 Innings
0
0
Fred Koster
Careerverified
Per 9 Innings
0
Jack O'Brien
Career
Per 9 Innings
2
0
Fred Koster
Career
Per 9 Innings
0
Jack O'Brien
Careerverified
Per 9 Innings
2
0