2009 NFL Forecast

19 Jan 2009: Average model rankings (NFL) (average rank over entire season)

19 Jan 2009: Current model rankings (NFL) (rank at final week in the season)

2009 Model Performance:

All games                     forecast probabilities
                 50-59%  60-69%  70-79%  80-89%  90-99%    100%     all
total games:        101     127      32       6       0       0     266
number right:        58      84      23       3       0       0     168
number expected:   56.0    80.4    23.8     4.9     0.0     0.0   165.1
right/expected:    1.04    1.04    0.97    0.61    0.00    0.00    1.02

Breakdown by Division and Conference:
Division games                forecast probabilities
                 50-59%  60-69%  70-79%  80-89%  90-99%    100%     all
total games:         43      37      15       3       0       0      98
number right:        27      30       9       2       0       0      68
number expected:   23.9    23.5    11.1     2.5     0.0     0.0    60.9
right/expected:    1.13    1.28    0.81    0.81    0.00    0.00    1.12

Non-Division games            forecast probabilities
                 50-59%  60-69%  70-79%  80-89%  90-99%    100%     all
total games:         35      59       9       1       0       0     104
number right:        16      36       7       1       0       0      60
number expected:   19.1    37.5     6.6     0.8     0.0     0.0    64.0
right/expected:    0.84    0.96    1.06    1.25    0.00    0.00    0.94

Non-Conference games          forecast probabilities
                 50-59%  60-69%  70-79%  80-89%  90-99%    100%     all
total games:         23      31       8       2       0       0      64
number right:        15      18       7       0       0       0      40
number expected:   12.9    19.5     6.0     1.6     0.0     0.0    40.1
right/expected:    1.16    0.92    1.16    0.00    0.00    0.00    1.00

actual/expected = 1 -- model right on
actual/expected > 1 -- model probabilities too low (more wins than expected)
actual/expected < 1 -- model probabilities too high (less wins than expected)

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