Computer Rating System Prediction Results for Pro football (NFL)

2007 Retrodiction Results

Through
Rank System Pct. Correct Against Spread Absolute Error Bias Mean Square Error games suw sul atsw atsl
1TSR Slots0.895130.000008.5216-0.00060129.856002672392800
2TSR Pred0.782770.000008.08580.20450113.175002672095800
3CPA Retro0.782770.000009.7282-2.87710158.106002672095800
4LS - w/ team HFA0.771540.000008.2226-0.50500120.255002672066100
5CPA Rankings0.771540.000008.4791-0.07460120.542002672066100
6System Average0.752810.000009.0325-0.44440136.018002672016600
7System Median0.752810.000009.0912-0.30860137.612002672016600
8Brian Gabrielle0.752810.000009.29210.20490141.967002672016600
9Logistic Regression0.749060.000009.8278-2.10970163.717002672006700
10Jeff Self0.749060.000009.9949-0.04300165.593002672006700
11Ed Kambour0.745320.000008.6442-0.14280124.141002671996800
12Least Abs. Val Reg0.745320.000008.9498-0.37090145.146002671996800
13Sagarin0.745320.000009.1867-0.17640144.122002671996800
14Roger Johnson0.745320.000009.38510.02750143.725002671996800
15PerformanZ Ratings0.745320.000009.5384-0.53460146.201002671996800
16Sagarin Elo0.741570.000009.5422-0.20950155.236002671986900
17Sports Report Elo0.741570.000009.7132-0.05820156.226002671986900
18Sagarin Predictive0.737830.000009.0625-0.15200139.849002671977000
19JFM Power Ratings0.737830.000009.47200.01270149.092002671977000
20Least Squares0.734080.000009.4029-0.53480141.493002671967100
21The Sports Report0.730340.000009.2238-0.07230136.721002671957200
22Mike Greenfield0.730340.000009.3749-0.76090144.325002671957200
23Sonny Moore0.726590.000009.3967-0.69800148.700002671947300
24Pigskin Index0.726590.000009.7278-0.10290157.882002671947300
25Stephen Kerns0.726590.000009.75340.06290157.342002671947300
26Stat Fox0.719100.000009.7026-0.05780149.780002671927500
27Beck Elo0.715360.000009.5232-0.08980151.636002671917600
28Pythagorean Ratings0.707870.000009.71890.04690149.143002671897800
29NutShell Sports0.704120.000009.56280.01600144.924002671887900
30Covers.com0.704120.0000010.2906-0.00850171.208002671887900
31Nutsehll Retro0.696630.0000010.01820.07600156.513002671868100
32Scoring Effeciency0.696630.0000010.10340.00550161.246002671868100
33Ashby Accuratings0.689140.000009.65540.15410149.192002671848300
34Sport Trends0.575190.0000011.5925-6.51050215.3260026615311300
35Grid Iron Gold0.569290.0000012.0674-1.09400235.7420026715211500
pct correct = percent straight up picking winners
against spread =  percent against the midweek line
absolute error = average(prediction - actual result)
bias = absolute value(prediction - actual result)
mean square error = absolute error squared
games collected
suw = straight up wins
sul = straight up losses
atsw = against the spread wins
atsl = against the spread losses