Jerry Koosman vs. Matt Maysey — Career Comparison

Jerry Koosman
Silent GenerationMinnesotaThrows LeftBats RightNorth AmericaNew York MetsNational LeagueStarting PitcherAll-Star
Matt Maysey
Gen XCANThrows RightBats RightNorth AmericaMilwaukee BrewersAmerican LeagueRelief Pitcher

Jerry Koosman built a career as a starting pitcher and Matt Maysey 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 5.55 and 1.890 for Matt Maysey. 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 Matt Maysey

Jerry Koosman
Careerverified
Per 9 Inningsverified
19
19
Matt Maysey
Career
Per 9 Innings
2
2
Jerry Koosman
Careerverified
Per 9 Innings
612
1.43
Matt Maysey
Career
Per 9 Inningsverified
25
9.25
Jerry Koosman
Careerverified
Per 9 Inningsverified
527
1.24
Matt Maysey
Career
Per 9 Innings
0
0
Jerry Koosman
Careerverified
Per 9 Inningsverified
222
0.52
Matt Maysey
Career
Per 9 Innings
1
0.37
Jerry Koosman
Career
Per 9 Inningsverified
209
0.49
Matt Maysey
Careerverified
Per 9 Innings
2
0.74
Jerry Koosman
Careerverified
Per 9 Inningsverified
51.51
51.51
Matt Maysey
Career
Per 9 Innings
33.33
33.33
Jerry Koosman
Careerverified
Per 9 Inningsverified
86.11
86.11
Matt Maysey
Career
Per 9 Innings
0
0
Jerry Koosman
Careerverified
Per 9 Inningsverified
140
0.33
Matt Maysey
Career
Per 9 Innings
0
0
Jerry Koosman
Careerverified
Per 9 Inningsverified
33
0.08
Matt Maysey
Career
Per 9 Innings
0
0
Jerry Koosman
Careerverified
Per 9 Innings
17
0.04
Matt Maysey
Career
Per 9 Inningsverified
1
0.37
Jerry Koosman
Career
Per 9 Inningsverified
1433
3.36
Matt Maysey
Careerverified
Per 9 Innings
15
5.55
Jerry Koosman
Careerverified
Per 9 Inningsverified
3.36
3.36
Matt Maysey
Career
Per 9 Innings
5.55
5.55
Jerry Koosman
Careerverified
Per 9 Inningsverified
3.33
3.33
Matt Maysey
Career
Per 9 Innings
7.73
7.73
Jerry Koosman
Careerverified
Per 9 Inningsverified
3.64
3.64
Matt Maysey
Career
Per 9 Innings
6.62
6.62
Jerry Koosman
Careerverified
Per 9 Inningsverified
0.252
0.252
Matt Maysey
Career
Per 9 Innings
0.327
0.327
Jerry Koosman
Careerverified
Per 9 Innings
11518
27
Matt Maysey
Career
Per 9 Innings
73
27
Jerry Koosman
Careerverified
Per 9 Innings
3839.1
9
Matt Maysey
Career
Per 9 Innings
24.1
9
Jerry Koosman
Career
Per 9 Inningsverified
3635
8.52
Matt Maysey
Careerverified
Per 9 Innings
32
11.84
Jerry Koosman
Careerverified
Per 9 Inningsverified
8.52
8.52
Matt Maysey
Career
Per 9 Innings
11.84
11.84
Jerry Koosman
Career
Per 9 Inningsverified
290
0.68
Matt Maysey
Careerverified
Per 9 Innings
5
1.85
Jerry Koosman
Careerverified
Per 9 Inningsverified
0.68
0.68
Matt Maysey
Career
Per 9 Innings
1.85
1.85
Jerry Koosman
Career
Per 9 Innings
0.47
0.47
Matt Maysey
Careerverified
Per 9 Inningsverified
0.2
0.2
Jerry Koosman
Career
Per 9 Inningsverified
1198
2.81
Matt Maysey
Careerverified
Per 9 Innings
13
4.81
Jerry Koosman
Career
Per 9 Inningsverified
121
0.28
Matt Maysey
Careerverified
Per 9 Innings
1
0.37
Jerry Koosman
Careerverified
Per 9 Inningsverified
2.81
2.81
Matt Maysey
Career
Per 9 Innings
4.81
4.81
Jerry Koosman
Careerverified
Per 9 Inningsverified
2556
5.99
Matt Maysey
Career
Per 9 Innings
11
4.07
Jerry Koosman
Careerverified
Per 9 Inningsverified
5.99
5.99
Matt Maysey
Career
Per 9 Innings
4.07
4.07
Jerry Koosman
Careerverified
Per 9 Inningsverified
4.18
4.18
Matt Maysey
Career
Per 9 Innings
0.44
0.44
Jerry Koosman
Career
Per 9 Innings
0.978
0.978
Matt Maysey
Careerverified
Per 9 Inningsverified
0.986
0.986
Jerry Koosman
Career
Per 9 Inningsverified
89
0.21
Matt Maysey
Careerverified
Per 9 Innings
4
1.48
Jerry Koosman
Career
Per 9 Inningsverified
71
0.17
Matt Maysey
Careerverified
Per 9 Innings
2
0.74
Jerry Koosman
Career
Per 9 Innings
29
0.07
Matt Maysey
Careerverified
Per 9 Inningsverified
0
0
Jerry Koosman
Careerverified
Per 9 Innings
15996
37.5
Matt Maysey
Career
Per 9 Inningsverified
117
43.27
Jerry Koosman
Careerverified
Per 9 Innings
43
0.1
Matt Maysey
Career
Per 9 Inningsverified
13
4.81
Jerry Koosman
Career
Per 9 Inningsverified
1608
3.77
Matt Maysey
Careerverified
Per 9 Innings
15
5.55
Jerry Koosman
Careerverified
Per 9 Inningsverified
3.77
3.77
Matt Maysey
Career
Per 9 Innings
5.55
5.55
Jerry Koosman
Career
Per 9 Inningsverified
173
0.41
Matt Maysey
Careerverified
Per 9 Innings
2
0.74
Jerry Koosman
Career
Per 9 Inningsverified
98
0.23
Matt Maysey
Careerverified
Per 9 Innings
2
0.74
Jerry Koosman
Careerverified
Per 9 Innings
230
0.54
Matt Maysey
Career
Per 9 Inningsverified
4
1.48
Jerry Koosman
Careerverified
Per 9 Inningsverified
1.259
1.259
Matt Maysey
Career
Per 9 Innings
1.849
1.849
Jerry Koosman
Careerverified
Per 9 Innings
14456
33.89
Matt Maysey
Career
Per 9 Inningsverified
98
36.25
Jerry Koosman
Career
Per 9 Innings
2.63
2.63
Matt Maysey
Careerverified
Per 9 Inningsverified
0.6
0.6
Jerry Koosman
Careerverified
Per 9 Inningsverified
0.288
0.288
Matt Maysey
Career
Per 9 Innings
0.329
0.329
Jerry Koosman
Career
Per 9 Innings
37.5
37.5
Matt Maysey
Careerverified
Per 9 Inningsverified
43.27
43.27

Fielding Stats for Jerry Koosman and Matt Maysey

Jerry Koosman
Careerverified
Per 9 Inningsverified
19
19
Matt Maysey
Career
Per 9 Innings
2
2
Jerry Koosman
Careerverified
Per 9 Innings
612
1.43
Matt Maysey
Career
Per 9 Inningsverified
25
9.25
Jerry Koosman
Careerverified
Per 9 Inningsverified
527
1.24
Matt Maysey
Career
Per 9 Innings
0
0
Jerry Koosman
Careerverified
Per 9 Innings
11519
27
Matt Maysey
Career
Per 9 Innings
73
27
Jerry Koosman
Careerverified
Per 9 Innings
3839.2
9
Matt Maysey
Career
Per 9 Innings
24.1
9
Jerry Koosman
Careerverified
Per 9 Innings
116
0.27
Matt Maysey
Career
Per 9 Inningsverified
1
0.37
Jerry Koosman
Careerverified
Per 9 Inningsverified
582
1.36
Matt Maysey
Career
Per 9 Innings
2
0.74
Jerry Koosman
Career
Per 9 Inningsverified
42
0.1
Matt Maysey
Careerverified
Per 9 Innings
2
0.74
Jerry Koosman
Careerverified
Per 9 Innings
740
1.73
Matt Maysey
Career
Per 9 Inningsverified
5
1.85
Jerry Koosman
Careerverified
Per 9 Inningsverified
698
1.64
Matt Maysey
Career
Per 9 Innings
3
1.11
Jerry Koosman
Careerverified
Per 9 Inningsverified
94.32
94.32
Matt Maysey
Career
Per 9 Innings
60
60
Jerry Koosman
Careerverified
Per 9 Inningsverified
1.141
1.141
Matt Maysey
Career
Per 9 Innings
0.12
0.12
Jerry Koosman
Careerverified
Per 9 Inningsverified
86.11
86.11
Matt Maysey
Career
Per 9 Innings
0
0
Jerry Koosman
Careerverified
Per 9 Inningsverified
36
0.08
Matt Maysey
Career
Per 9 Innings
0
0
Jerry Koosman
Career
Per 9 Innings
0
0
Matt Maysey
Career
Per 9 Innings
0
0
Jerry Koosman
Career
Per 9 Innings
0
0
Matt Maysey
Career
Per 9 Innings
0
0
Jerry Koosman
Career
Per 9 Innings
0
0
Matt Maysey
Career
Per 9 Innings
0
0
Jerry Koosman
Career
Per 9 Innings
0
0
Matt Maysey
Career
Per 9 Innings
0
0

Hitting Stats for Jerry Koosman and Matt Maysey

Jerry Koosman
Careerverified
Per 600 PAverified
19
19
Matt Maysey
Career
Per 600 PA
2
2
Jerry Koosman
Careerverified
Per 600 PA
612
349.05
Matt Maysey
Career
Per 600 PAverified
25
15000
Jerry Koosman
Careerverified
Per 600 PA
1052
600
Matt Maysey
Career
Per 600 PA
1
600
Jerry Koosman
Careerverified
Per 600 PA
915
521.86
Matt Maysey
Career
Per 600 PAverified
1
600
Jerry Koosman
Career
Per 600 PA
0.119
0.119
Matt Maysey
Careerverified
Per 600 PAverified
1
1
Jerry Koosman
Career
Per 600 PA
0.374
0.374
Matt Maysey
Careerverified
Per 600 PAverified
2
2
Jerry Koosman
Careerverified
Per 600 PA
109
62.17
Matt Maysey
Career
Per 600 PAverified
1
600
Jerry Koosman
Careerverified
Per 600 PA
94
53.61
Matt Maysey
Career
Per 600 PAverified
1
600
Jerry Koosman
Careerverified
Per 600 PAverified
12
6.84
Matt Maysey
Career
Per 600 PA
0
0
Jerry Koosman
Careerverified
Per 600 PAverified
1
0.57
Matt Maysey
Career
Per 600 PA
0
0
Jerry Koosman
Careerverified
Per 600 PAverified
2
1.14
Matt Maysey
Career
Per 600 PA
0
0
Jerry Koosman
Careerverified
Per 600 PAverified
15
8.56
Matt Maysey
Career
Per 600 PA
0
0
Jerry Koosman
Careerverified
Per 600 PAverified
0.138
0.138
Matt Maysey
Career
Per 600 PA
0
0
Jerry Koosman
Careerverified
Per 600 PAverified
0.002
0.002
Matt Maysey
Career
Per 600 PA
0
0
Jerry Koosman
Careerverified
Per 600 PAverified
0.018
0.018
Matt Maysey
Career
Per 600 PA
0
0
Jerry Koosman
Careerverified
Per 600 PA
18.19
10.37
Matt Maysey
Career
Per 600 PAverified
1
600
Jerry Koosman
Careerverified
Per 600 PA
129
73.57
Matt Maysey
Career
Per 600 PAverified
1
600
Jerry Koosman
Careerverified
Per 600 PA
144
82.13
Matt Maysey
Career
Per 600 PAverified
1
600
Jerry Koosman
Career
Per 600 PA
0.151
0.151
Matt Maysey
Careerverified
Per 600 PAverified
1
1
Jerry Koosman
Career
Per 600 PA
0.141
0.141
Matt Maysey
Careerverified
Per 600 PAverified
1
1
Jerry Koosman
Career
Per 600 PA
0.292
0.292
Matt Maysey
Careerverified
Per 600 PAverified
2
2
Jerry Koosman
Careerverified
Per 600 PAverified
0.022
0.022
Matt Maysey
Career
Per 600 PA
0
0
Jerry Koosman
Career
Per 600 PA
0.103
0.103
Matt Maysey
Careerverified
Per 600 PAverified
0.7
0.7
Jerry Koosman
Careerverified
Per 600 PAverified
0.2
0.2
Matt Maysey
Career
Per 600 PA
Jerry Koosman
Career
Per 600 PA
0.215
0.215
Matt Maysey
Careerverified
Per 600 PAverified
1
1
Jerry Koosman
Careerverified
Per 600 PAverified
36
20.53
Matt Maysey
Career
Per 600 PA
0
0
Jerry Koosman
Careerverified
Per 600 PAverified
46
26.24
Matt Maysey
Career
Per 600 PA
0
0
Jerry Koosman
Careerverified
Per 600 PAverified
80
45.63
Matt Maysey
Career
Per 600 PA
0
0
Jerry Koosman
Career
Per 600 PA
-9.7
-5.53
Matt Maysey
Careerverified
Per 600 PAverified
0.71
423.33
Jerry Koosman
Careerverified
Per 600 PAverified
2
1.14
Matt Maysey
Career
Per 600 PA
0
0
Jerry Koosman
Careerverified
Per 600 PAverified
33
18.82
Matt Maysey
Career
Per 600 PA
0
0
Jerry Koosman
Career
Per 600 PA
0
0
Matt Maysey
Career
Per 600 PA
0
0
Jerry Koosman
Career
Per 600 PA
418
238.4
Matt Maysey
Careerverified
Per 600 PAverified
0
0
Jerry Koosman
Careerverified
Per 600 PAverified
2.52
2.52
Matt Maysey
Career
Per 600 PA
Jerry Koosman
Careerverified
Per 600 PAverified
0.08
0.08
Matt Maysey
Career
Per 600 PA
Jerry Koosman
Careerverified
Per 600 PAverified
100
57.03
Matt Maysey
Career
Per 600 PA
0
0
Jerry Koosman
Careerverified
Per 600 PAverified
2
1.14
Matt Maysey
Career
Per 600 PA
0
0
Jerry Koosman
Career
Per 600 PA
19
10.84
Matt Maysey
Careerverified
Per 600 PAverified
0
0
Jerry Koosman
Careerverified
Per 600 PAverified
1
0.57
Matt Maysey
Career
Per 600 PA
0
0
Jerry Koosman
Career
Per 600 PA
0
0
Matt Maysey
Career
Per 600 PA
0
0
Jerry Koosman
Careerverified
Per 600 PAverified
1
0.57
Matt Maysey
Career
Per 600 PA
0
0
Jerry Koosman
Careerverified
Per 600 PAverified
100
100
Matt Maysey
Career
Per 600 PA