Roy Mahaffey - Decomposition of Value
Baseball Player Won-Loss Records
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Roy Mahaffey
- Decomposition of Value
*
Missing player games extrapolated
(Numbers in italics include some games for which Retrosheet is missing play-by-play data.)
Value decomposition with missing games excluded
Positional Average
(Weighted Avg of Options): 0.500
(1-Year)
(9-Year)
(Long-Run)
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)
Decomposition of pWORL
(Click
here
for decomposition of eWORL)
Wins over Average
Batting
Baserunning
Pitching
Fielding
Total
1926
PIT
-0.0
0.0
0.0
-0.0
-0.0
1927
PIT
-0.0
-0.0
-0.1
0.0
-0.1
1928
-
-
-
-
-
-
1929
-
-
-
-
-
-
1930
PHA
-0.5
-0.0
-0.5
0.0
-1.0
1931
PHA
-0.3
-0.0
1.5
0.0
1.2
1932
PHA
-0.8
0.0
-2.0
-0.3
-3.1
1933
PHA
-0.1
0.0
0.8
0.2
1.0
1934
PHA
-0.0
0.0
-0.6
-0.0
-0.6
1935
PHA
-0.4
-0.0
0.3
0.1
-0.0
1936
SLA
-0.3
-0.0
-1.6
-0.2
-2.1
------
------
------
------
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CAREER (reg. season)
-2.3
0.0
-2.2
-0.3
-4.8
Positional
Replacement
Adjustments
pWOPA
Value
pWORL
1926
PIT
0.0
-0.0
0.0
-0.0
1927
PIT
0.0
-0.1
0.0
-0.1
1928
-
-
-
-
-
1929
-
-
-
-
-
1930
PHA
0.3
-0.7
1.1
0.4
1931
PHA
0.5
1.7
1.3
3.0
1932
PHA
0.7
-2.4
1.7
-0.8
1933
PHA
0.5
1.4
1.2
2.6
1934
PHA
0.2
-0.4
1.0
0.6
1935
PHA
0.4
0.4
0.9
1.3
1936
SLA
0.2
-2.0
0.6
-1.4
------
------
------
------
CAREER (reg. season)
2.7
-2.1
7.8
5.7
Choose Weights for
Uber-Statistic
in Final Table
pWins
vs.
eWins
Wins
vs. Wins over Average
vs. Repl. Level
vs. Star
Zero out negative values (y/n):
WOPA:
WORL
:
WO*
:
By Position: C
1B
2B
3B
SS
LF
CF
RF
DH
PH
PR
P Off.
SP
RP
Weights for Postseason: Wins
WOPA
WORL
Normalize seasons to
games (enter 0 to use actual un-normalized totals)
Extrapolate missing player games? (y/n)
Uber-Statistic
Games
Wins
WORL
WOPA
Key Stat
1926
PIT
4
0.0
-
-
0.0
1927
PIT
2
0.3
-
-
0.0
1928
-
-
-
-
-
-
1929
-
-
-
-
-
-
1930
PHA
33
7.7
0.2
-
0.2
1931
PHA
30
10.9
1.9
0.9
3.3
1932
PHA
37
12.1
0.1
-
0.1
1933
PHA
33
11.0
2.5
1.3
4.4
1934
PHA
37
7.3
0.7
-
0.7
1935
PHA
27
7.4
1.1
0.2
1.4
1936
SLA
21
3.5
-
-
0.0
------
------
------
------
Career Totals
224
60.3
6.7
2.4
10.3
Totals include regular and postseason, negative numbers zeroed out. Weights on pWins, eWins are 0.5 and 0.5, respectively.
Season length adjusted to 162 games with missing games extrapolated.
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