Jerry Koosman
Jerome Martin Koosman
 
 
Born: December 23, 1942 in Appleton, MN
70 years old
Bats: R Throws: L Ht: 6'2" Wt: 205
(legend)
Links:
Player Pages
  
Biographical
   Photos
Baseball-Reference Baseball-Almanac Wikipedia SABR Baseball Index Google Photos / +baseball Getty / Corbis
Retrosheet The Baseball Page BR Bullpen SABR BioProject Yahoo Photos / +baseball Alta Vista / Imagery
Notes:
- Signed by the New York Mets as an Amateur Free Agent in 1964
- Served in the Army during The Vietnam War
- High School: West Central School of Agriculture (Morris, MN)

Overall

Multi-Team Years
   
Wins Above Replacement
  
Win Shares
  
Win Shares Above Bench
Yr
Tm
Lg
NYN
NL
24.5
SP
3
22.3
 
-0.4
0.0
0.0
-0.5
0.0
0.0
0.0
0.0
0.0
-0.8
-0.0
0.0
-0.8
NYN
NL
25.5
SP
97
263.7
 
6.0
-0.3
0.0
6.3
0.0
22.7
0.0
0.0
22.7
13.9
-0.1
0.0
14.0
NYN
NL
26.5
SP
89
241.0
 
4.9
-1.0
0.0
5.9
0.0
26.0
0.0
0.0
26.0
17.8
-0.1
0.0
17.9
NYN
NL
27.5
SP
86
212.0
 
2.7
-0.3
0.0
3.0
0.0
15.1
0.0
0.0
15.1
8.0
-0.1
0.0
8.1
NYN
NL
28.5
SP
60
165.7
 
2.4
0.0
0.0
2.4
0.0
8.9
0.0
0.0
8.9
3.4
-0.1
0.0
3.5
NYN
NL
29.5
SP
56
163.0
 
-0.1
-0.5
0.0
0.4
0.0
6.1
0.0
0.0
6.1
0.3
-0.1
0.0
0.4
NYN
NL
30.5
SP
95
263.0
 
5.2
-0.5
0.0
5.8
0.0
18.8
0.0
0.0
18.8
10.0
-0.1
0.0
10.1
NYN
NL
31.5
SP
103
265.0
 
5.1
0.2
0.0
4.9
0.0
16.9
0.0
0.0
16.9
8.0
-0.3
0.0
8.3
NYN
NL
32.5
SP
89
239.7
 
2.3
0.2
0.0
2.1
0.0
12.8
0.0
0.0
12.8
5.0
-0.1
0.0
5.2
NYN
NL
33.5
SP
94
247.3
 
5.0
0.3
0.0
4.8
0.0
19.7
0.0
0.0
19.7
11.4
-0.1
0.0
11.6
NYN
NL
34.5
SP
79
226.7
 
2.5
-0.5
0.0
2.9
0.0
11.5
0.0
0.0
11.5
5.0
-0.1
0.0
5.1
NYN
NL
35.5
SP
75
235.3
 
1.2
-0.3
0.0
1.5
0.0
8.1
0.0
0.0
8.1
0.4
-0.1
0.0
0.5
MIN
AL
36.5
SP
-
263.7
 
7.2
0.0
0.0
7.2
0.0
22.8
0.0
0.0
22.8
14.3
0.0
0.0
14.3
MIN
AL
37.5
SP
-
243.3
 
3.0
0.0
0.0
3.0
0.0
15.9
0.0
0.0
15.9
8.2
0.0
0.0
8.2
MIN
AL
38.5
SP
-
94.3
 
0.8
0.0
0.0
0.8
0.0
4.7
0.0
0.0
4.7
1.5
0.0
0.0
1.5
CHA
AL
38.5
SP
-
27.0
 
0.4
0.0
0.0
0.4
0.0
1.3
0.0
0.0
1.3
0.2
0.0
0.0
0.2
CHA
AL
39.5
SP
-
173.3
 
2.7
0.0
0.0
2.7
0.0
10.6
0.0
0.0
10.6
4.3
0.0
0.0
4.3
CHA
AL
40.5
SP
-
169.7
 
0.0
0.0
0.0
-0.0
0.0
7.4
0.0
0.0
7.4
1.7
0.0
0.0
1.7
PHI
NL
41.5
SP
89
224.0
 
2.4
-0.5
0.0
3.0
0.0
12.9
0.0
0.0
12.9
5.9
-0.2
0.0
6.0
PHI
NL
42.5
SP
37
99.3
 
0.3
-0.2
0.0
0.5
0.0
3.0
0.0
0.0
3.0
-0.2
-0.0
0.0
-0.2
19
4
SP
1052
3839.3
  
53.9
-3.4
0.4
57.1
0.2
245.0
0.0
0.0
245.0
118.5
-1.5
0.0
119.9
162 Game Average
63
229.2
  
3.2
-0.2
0.0
3.4
0.0
  
14.6
0.0
0.0
14.6
  
7.1
-0.1
0.0
7.2
 
   
Wins Above Replacement
  
Win Shares
  
Win Shares Above Bench
Yr Tm    
12
P
926
2544.7
 
36.9
-2.8
0.2
39.5
0.0
166.6
0.0
0.0
166.6
82.6
-1.3
0.0
83.9
3
P
-
601.3
 
11.1
0.1
0.1
11.1
0.1
43.3
0.0
0.0
43.3
24.0
0.0
0.0
24.0
3
P
-
370.0
 
3.1
0.1
0.1
3.0
0.1
19.2
0.0
0.0
19.2
6.2
0.0
0.0
6.2
2
P
126
323.3
 
2.7
-0.8
0.0
3.5
0.0
15.9
0.0
0.0
15.9
5.6
-0.2
0.0
5.8
Wins Above Replacement data courtesy of Baseball-Reference.com
Any questions, comments, suggestions?? Please contact the webmaster at BaseballGauge@gmail.com

The statistics used were obtained free of charge from The Baseball Databank.

Wins Above Replacement data courtesy of Baseball-Reference.com.

Defensive Regression Analysis data used here was obtained with permission from Michael Humphreys, author of Wizardry.

The transaction and player splits data used here was obtained free of charge from and is copyrighted by Retrosheet.
Interested parties may contact Retrosheet at "www.retrosheet.org".

Uniform images used with permission from Marc Okkonen, author of Baseball Uniforms of the 20th Century.
Images can also be viewed at the Hall of Fame online exhibit Dressed to the Nines

Win Shares are calculated using the formula in the book Win Shares by Bill James