Jerry Koosman vs. Weldon West — Career Comparison

Jerry Koosman
Silent GenerationMinnesotaThrows LeftBats RightNorth AmericaNew York MetsNational LeagueStarting PitcherAll-Star
Weldon West
Greatest GenerationNorth CarolinaThrows LeftBats RightNorth AmericaSt. Louis BrownsAmerican LeagueRelief Pitcher

Jerry Koosman built a career as a starting pitcher and Weldon West as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jerry Koosman posted stronger surface numbers — ERA 3.36 and WHIP 1.290 compared to 4.29 and 1.571 for Weldon West. By the career numbers, Jerry Koosman had the better of this cross-role comparison — though era context would sharpen the verdict.

Pitching Stats for Jerry Koosman and Weldon West

Jerry Koosman
Careerverified
Per 9 Inningsverified
19
19
Weldon West
Career
Per 9 Innings
2
2
Jerry Koosman
Careerverified
Per 9 Innings
612
1.43
Weldon West
Career
Per 9 Inningsverified
35
3.19
Jerry Koosman
Careerverified
Per 9 Inningsverified
527
1.24
Weldon West
Career
Per 9 Innings
8
0.73
Jerry Koosman
Careerverified
Per 9 Inningsverified
222
0.52
Weldon West
Career
Per 9 Innings
3
0.27
Jerry Koosman
Career
Per 9 Innings
209
0.49
Weldon West
Careerverified
Per 9 Inningsverified
4
0.36
Jerry Koosman
Careerverified
Per 9 Inningsverified
51.51
51.51
Weldon West
Career
Per 9 Innings
42.86
42.86
Jerry Koosman
Careerverified
Per 9 Inningsverified
86.11
86.11
Weldon West
Career
Per 9 Innings
22.86
22.86
Jerry Koosman
Careerverified
Per 9 Inningsverified
140
0.33
Weldon West
Career
Per 9 Innings
1
0.09
Jerry Koosman
Careerverified
Per 9 Inningsverified
33
0.08
Weldon West
Career
Per 9 Innings
0
0
Jerry Koosman
Careerverified
Per 9 Inningsverified
17
0.04
Weldon West
Career
Per 9 Innings
0
0
Jerry Koosman
Career
Per 9 Inningsverified
1433
3.36
Weldon West
Careerverified
Per 9 Innings
47
4.29
Jerry Koosman
Careerverified
Per 9 Inningsverified
3.36
3.36
Weldon West
Career
Per 9 Innings
4.29
4.29
Jerry Koosman
Careerverified
Per 9 Inningsverified
3.33
3.33
Weldon West
Career
Per 9 Innings
4.35
4.35
Jerry Koosman
Careerverified
Per 9 Inningsverified
3.64
3.64
Weldon West
Career
Per 9 Innings
3.95
3.95
Jerry Koosman
Careerverified
Per 9 Inningsverified
0.252
0.252
Weldon West
Career
Per 9 Innings
0.267
0.267
Jerry Koosman
Careerverified
Per 9 Innings
11518
27
Weldon West
Career
Per 9 Innings
296
27
Jerry Koosman
Careerverified
Per 9 Innings
3839.1
9
Weldon West
Career
Per 9 Innings
98.2
9
Jerry Koosman
Career
Per 9 Inningsverified
3635
8.52
Weldon West
Careerverified
Per 9 Innings
105
9.58
Jerry Koosman
Careerverified
Per 9 Inningsverified
8.52
8.52
Weldon West
Career
Per 9 Innings
9.58
9.58
Jerry Koosman
Career
Per 9 Innings
290
0.68
Weldon West
Careerverified
Per 9 Inningsverified
3
0.27
Jerry Koosman
Career
Per 9 Innings
0.68
0.68
Weldon West
Careerverified
Per 9 Inningsverified
0.27
0.27
Jerry Koosman
Career
Per 9 Innings
0.47
0.47
Weldon West
Careerverified
Per 9 Inningsverified
0.09
0.09
Jerry Koosman
Career
Per 9 Inningsverified
1198
2.81
Weldon West
Careerverified
Per 9 Innings
50
4.56
Jerry Koosman
Career
Per 9 Innings
121
0.28
Weldon West
Careerverified
Per 9 Inningsverified
0
0
Jerry Koosman
Careerverified
Per 9 Inningsverified
2.81
2.81
Weldon West
Career
Per 9 Innings
4.56
4.56
Jerry Koosman
Careerverified
Per 9 Inningsverified
2556
5.99
Weldon West
Career
Per 9 Innings
49
4.47
Jerry Koosman
Careerverified
Per 9 Inningsverified
5.99
5.99
Weldon West
Career
Per 9 Innings
4.47
4.47
Jerry Koosman
Careerverified
Per 9 Inningsverified
4.18
4.18
Weldon West
Career
Per 9 Innings
1.4
1.4
Jerry Koosman
Career
Per 9 Innings
0.978
0.978
Weldon West
Careerverified
Per 9 Inningsverified
1.003
1.003
Jerry Koosman
Career
Per 9 Innings
89
0.21
Weldon West
Careerverified
Per 9 Inningsverified
0
0
Jerry Koosman
Career
Per 9 Innings
71
0.17
Weldon West
Careerverified
Per 9 Inningsverified
1
0.09
Jerry Koosman
Career
Per 9 Innings
29
0.07
Weldon West
Careerverified
Per 9 Inningsverified
0
0
Jerry Koosman
Careerverified
Per 9 Innings
15996
37.5
Weldon West
Career
Per 9 Inningsverified
444
40.5
Jerry Koosman
Careerverified
Per 9 Innings
43
0.1
Weldon West
Career
Per 9 Inningsverified
11
1
Jerry Koosman
Career
Per 9 Inningsverified
1608
3.77
Weldon West
Careerverified
Per 9 Innings
55
5.02
Jerry Koosman
Careerverified
Per 9 Inningsverified
3.77
3.77
Weldon West
Career
Per 9 Innings
5.02
5.02
Jerry Koosman
Career
Per 9 Innings
173
0.41
Weldon West
Careerverified
Per 9 Inningsverified
0
0
Jerry Koosman
Career
Per 9 Innings
98
0.23
Weldon West
Careerverified
Per 9 Inningsverified
0
0
Jerry Koosman
Careerverified
Per 9 Inningsverified
230
0.54
Weldon West
Career
Per 9 Innings
0
0
Jerry Koosman
Careerverified
Per 9 Inningsverified
1.259
1.259
Weldon West
Career
Per 9 Innings
1.571
1.571
Jerry Koosman
Careerverified
Per 9 Innings
14456
33.89
Weldon West
Career
Per 9 Inningsverified
393
35.85
Jerry Koosman
Career
Per 9 Innings
2.63
2.63
Weldon West
Careerverified
Per 9 Inningsverified
1.57
1.57
Jerry Koosman
Careerverified
Per 9 Inningsverified
0.288
0.288
Weldon West
Career
Per 9 Innings
0.299
0.299
Jerry Koosman
Career
Per 9 Innings
37.5
37.5
Weldon West
Careerverified
Per 9 Inningsverified
40.5
40.5

Fielding Stats for Jerry Koosman and Weldon West

Jerry Koosman
Careerverified
Per 9 Inningsverified
19
19
Weldon West
Career
Per 9 Innings
2
Jerry Koosman
Careerverified
Per 9 Inningsverified
612
1.43
Weldon West
Career
Per 9 Innings
35
Jerry Koosman
Careerverified
Per 9 Inningsverified
527
1.24
Weldon West
Career
Per 9 Innings
0
Jerry Koosman
Careerverified
Per 9 Inningsverified
11519
27
Weldon West
Career
Per 9 Innings
0
Jerry Koosman
Careerverified
Per 9 Inningsverified
3839.2
9
Weldon West
Career
Per 9 Innings
0
Jerry Koosman
Careerverified
Per 9 Inningsverified
116
0.27
Weldon West
Career
Per 9 Innings
2
Jerry Koosman
Careerverified
Per 9 Inningsverified
582
1.36
Weldon West
Career
Per 9 Innings
10
Jerry Koosman
Career
Per 9 Innings
42
0.1
Weldon West
Careerverified
Per 9 Inningsverified
0
Jerry Koosman
Careerverified
Per 9 Inningsverified
740
1.73
Weldon West
Career
Per 9 Innings
12
Jerry Koosman
Careerverified
Per 9 Inningsverified
698
1.64
Weldon West
Career
Per 9 Innings
12
Jerry Koosman
Career
Per 9 Inningsverified
94.32
94.32
Weldon West
Careerverified
Per 9 Innings
100
Jerry Koosman
Careerverified
Per 9 Inningsverified
1.141
1.141
Weldon West
Career
Per 9 Innings
0.343
Jerry Koosman
Careerverified
Per 9 Inningsverified
86.11
86.11
Weldon West
Career
Per 9 Innings
0
Jerry Koosman
Careerverified
Per 9 Inningsverified
36
0.08
Weldon West
Career
Per 9 Innings
0
Jerry Koosman
Career
Per 9 Innings
0
0
Weldon West
Career
Per 9 Innings
0
Jerry Koosman
Career
Per 9 Innings
0
0
Weldon West
Career
Per 9 Innings
0
Jerry Koosman
Career
Per 9 Innings
0
0
Weldon West
Career
Per 9 Innings
0
Jerry Koosman
Career
Per 9 Innings
0
0
Weldon West
Career
Per 9 Innings
0

Hitting Stats for Jerry Koosman and Weldon West

Jerry Koosman
Careerverified
Per 600 PAverified
19
19
Weldon West
Career
Per 600 PA
2
2
Jerry Koosman
Careerverified
Per 600 PA
612
349.05
Weldon West
Career
Per 600 PAverified
35
600
Jerry Koosman
Careerverified
Per 600 PA
1052
600
Weldon West
Career
Per 600 PA
35
600
Jerry Koosman
Careerverified
Per 600 PA
915
521.86
Weldon West
Career
Per 600 PAverified
34
582.86
Jerry Koosman
Careerverified
Per 600 PAverified
0.119
0.119
Weldon West
Career
Per 600 PA
0.088
0.088
Jerry Koosman
Careerverified
Per 600 PAverified
0.374
0.374
Weldon West
Career
Per 600 PA
0.2
0.2
Jerry Koosman
Careerverified
Per 600 PAverified
109
62.17
Weldon West
Career
Per 600 PA
3
51.43
Jerry Koosman
Careerverified
Per 600 PAverified
94
53.61
Weldon West
Career
Per 600 PA
3
51.43
Jerry Koosman
Careerverified
Per 600 PAverified
12
6.84
Weldon West
Career
Per 600 PA
0
0
Jerry Koosman
Careerverified
Per 600 PAverified
1
0.57
Weldon West
Career
Per 600 PA
0
0
Jerry Koosman
Careerverified
Per 600 PAverified
2
1.14
Weldon West
Career
Per 600 PA
0
0
Jerry Koosman
Careerverified
Per 600 PAverified
15
8.56
Weldon West
Career
Per 600 PA
0
0
Jerry Koosman
Careerverified
Per 600 PAverified
0.138
0.138
Weldon West
Career
Per 600 PA
0
0
Jerry Koosman
Careerverified
Per 600 PAverified
0.002
0.002
Weldon West
Career
Per 600 PA
0
0
Jerry Koosman
Careerverified
Per 600 PAverified
0.018
0.018
Weldon West
Career
Per 600 PA
0
0
Jerry Koosman
Careerverified
Per 600 PAverified
18.19
10.37
Weldon West
Career
Per 600 PA
0.15
2.52
Jerry Koosman
Careerverified
Per 600 PAverified
129
73.57
Weldon West
Career
Per 600 PA
3
51.43
Jerry Koosman
Careerverified
Per 600 PAverified
144
82.13
Weldon West
Career
Per 600 PA
3
51.43
Jerry Koosman
Careerverified
Per 600 PAverified
0.151
0.151
Weldon West
Career
Per 600 PA
0.088
0.088
Jerry Koosman
Careerverified
Per 600 PAverified
0.141
0.141
Weldon West
Career
Per 600 PA
0.088
0.088
Jerry Koosman
Careerverified
Per 600 PAverified
0.292
0.292
Weldon West
Career
Per 600 PA
0.176
0.176
Jerry Koosman
Careerverified
Per 600 PAverified
0.022
0.022
Weldon West
Career
Per 600 PA
0
0
Jerry Koosman
Careerverified
Per 600 PAverified
0.103
0.103
Weldon West
Career
Per 600 PA
0.062
0.062
Jerry Koosman
Careerverified
Per 600 PAverified
0.2
0.2
Weldon West
Career
Per 600 PA
0.094
0.094
Jerry Koosman
Careerverified
Per 600 PAverified
0.215
0.215
Weldon West
Career
Per 600 PA
0.143
0.143
Jerry Koosman
Careerverified
Per 600 PAverified
36
20.53
Weldon West
Career
Per 600 PA
0
0
Jerry Koosman
Careerverified
Per 600 PAverified
46
26.24
Weldon West
Career
Per 600 PA
1
17.14
Jerry Koosman
Careerverified
Per 600 PAverified
80
45.63
Weldon West
Career
Per 600 PA
1
17.14
Jerry Koosman
Career
Per 600 PAverified
-9.7
-5.53
Weldon West
Careerverified
Per 600 PA
-1.82
-31.15
Jerry Koosman
Careerverified
Per 600 PAverified
2
1.14
Weldon West
Career
Per 600 PA
0
0
Jerry Koosman
Careerverified
Per 600 PAverified
33
18.82
Weldon West
Career
Per 600 PA
0
0
Jerry Koosman
Career
Per 600 PA
0
0
Weldon West
Career
Per 600 PA
0
0
Jerry Koosman
Career
Per 600 PA
418
238.4
Weldon West
Careerverified
Per 600 PAverified
13
222.86
Jerry Koosman
Career
Per 600 PA
2.52
2.52
Weldon West
Careerverified
Per 600 PAverified
2.69
2.69
Jerry Koosman
Careerverified
Per 600 PAverified
0.08
0.08
Weldon West
Career
Per 600 PA
0
0
Jerry Koosman
Careerverified
Per 600 PAverified
100
57.03
Weldon West
Career
Per 600 PA
1
17.14
Jerry Koosman
Careerverified
Per 600 PAverified
2
1.14
Weldon West
Career
Per 600 PA
0
0
Jerry Koosman
Career
Per 600 PAverified
19
10.84
Weldon West
Careerverified
Per 600 PA
1
17.14
Jerry Koosman
Careerverified
Per 600 PAverified
1
0.57
Weldon West
Career
Per 600 PA
0
0
Jerry Koosman
Career
Per 600 PA
0
0
Weldon West
Career
Per 600 PA
0
0
Jerry Koosman
Careerverified
Per 600 PAverified
1
0.57
Weldon West
Career
Per 600 PA
0
0
Jerry Koosman
Careerverified
Per 600 PAverified
100
100
Weldon West
Career
Per 600 PA