Jeff Pfeffer - Pitching
Baseball Player Won-Loss Records
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Jeff Pfeffer - Pitching

Missing player games extrapolated
(Numbers in italics include some games for which Retrosheet is missing play-by-play data.)

Pitching records with missing games excluded

Positional Averages for Pitchers (Wgted Avg of Options): 0.500 vs. Different Values for Starting vs. Relief Pitchers: (Empirical) (Based on Pitchers who Do Both)

Pitching Won-Lost Records
pWins over Positional Average
Season Team pWins pLoss Starter Relief Total
1911
-
-
-
--
-
1912
-
-
-
--
-
1913
-
-
-
--
-
1914
-
-
-
--
-
1915
-
-
-
--
-
191616.5
12.4
4.10.2
0.2
191712.2
11.6
0.6-
-
19180.6
0.4
0.3-
-
191912.5
10.9
1.6-
-
192011.7
8.8
2.9-0.0
-0.0
+ 1921
 
6.2
6.5
-0.60.2
-0.3
192215.0
12.2
2.70.1
0.1
19235.9
7.9
-2.10.1
0.1
+ 1924
 
6.6
7.2
-0.4-0.2
-0.6
------ ------ ------ ------ ------ ------ ------
CAREER (reg. season)
87.3
77.8
9.20.4
9.6


Pitching Won-Lost Records by Component
Component 1 Component 2
Season Team eWins eLoss Net Wins eWins eLoss Net Wins
1911
-
------
1912
-
------
1913
-
------
1914
-
------
1915
-
------
19160.50.6-0.00.20.20.1
19170.60.7-0.10.20.3-0.2
19180.00.0-0.00.00.00.0
19190.50.5-0.00.10.00.1
19200.30.5-0.20.10.3-0.1
+ 1921
 
0.20.10.00.10.00.1
19220.40.30.00.10.00.1
19230.10.3-0.10.10.10.0
+ 1924
 
0.20.2-0.10.10.10.0
------ ------ ------ ------ ------ ------ ------ ------
CAREER
2.73.2-0.51.10.90.1


Component 3 Component 4 Combined
Season Team eWins eLoss eWins eLoss eWins eLoss Net Wins
1911
-
------
-
1912
-
------
-
1913
-
------
-
1914
-
------
-
1915
-
------
-
19162.32.88.26.210.59.0
1.4
19172.32.96.75.29.08.1
0.8
19180.00.10.30.20.30.3
0.0
19191.82.46.86.28.68.6
-0.0
19201.61.75.94.27.45.9
1.5
+ 1921
 
0.71.53.63.64.25.1
-0.8
19221.72.48.66.110.38.5
1.8
19230.61.64.64.45.26.0
-0.8
+ 1924
 
0.81.54.14.04.85.5
-0.7
------ ------ ------ ------ ------ ------ ------ ------ ------
CAREER
11.616.948.640.160.257.1
3.2


Component 5 Component 6 Component 7
Season Team eWins eLoss Net Wins eWins eLoss Net Wins eWins eLoss Net Wins
1911
-
--
-
--
-
--
-
1912
-
--
-
--
-
--
-
1913
-
--
-
--
-
--
-
1914
-
--
-
--
-
--
-
1915
-
--
-
--
-
--
-
19162.82.5
0.4
0.20.3
-0.0
0.00.1
-0.1
19172.12.0
0.1
0.20.2
-0.0
0.00.0
-0.0
19180.10.0
0.1
0.0-0.0
0.0
0.00.0
-0.0
19191.92.3
-0.4
0.20.2
-0.1
0.30.1
0.2
19201.51.6
-0.1
0.10.1
0.0
0.00.0
-0.0
+ 1921
 
1.31.3
0.0
0.10.1
0.0
0.00.1
-0.1
19222.62.4
0.2
0.20.1
0.1
0.00.2
-0.2
19231.61.4
0.2
0.10.1
0.0
0.00.0
-0.0
+ 1924
 
1.21.4
-0.2
0.10.1
0.0
0.00.0
0.0
------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------
CAREER
15.114.8
0.2
1.31.2
0.1
0.30.5
-0.2


Contextual Adjustments
Context Multipliers Win Adjustments
Season Team Inter-Game Intra-Game Combined Inter-Game Intra-Game
1911
-
--
-
--
1912
-
--
-
--
1913
-
--
-
--
1914
-
--
-
--
1915
-
--
-
--
19160.931.16
1.07
0.0150.021
19171.060.95
1.01
-0.0180.017
19181.231.15
1.41
-0.0340.093
19191.020.99
1.01
0.0100.028
19201.091.05
1.15
0.0210.026
+ 1921
 
1.001.01
1.01
0.0100.009
19221.051.04
1.09
-0.0050.017
19231.080.84
0.91
-0.013-0.036
+ 1924
 
1.170.86
1.01
0.0020.010
------ ------ ------ ------ ------ ------ ------
CAREER
1.041.00
1.04
0.0020.017




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