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Thursday, 11 September 2014

Degeneracy Instructions for Bodog Lines

I have dim opinions of the abilities of various betting agencies and/or their customers to set prices on hockey; but it is also common to say that making money consistently betting on hockey is hard. Purely for I-told-you-so purposes, I record here how I would bet if I were a gambling man given the posted lines on 2015-09-11, a few days after the Bodog lines came out. Not one of the lines is close enough to my model predictions to not give some value. My scheme is as follows: bet some fixed multiple of the 'value' entry for all thirty teams. That is, bet, say, 47 dollars on the under for Anaheim, 47 dollars on the over for the Coyotes, 32 dollars on the over on Columbus, and so on.

My intuition about where the model is good and bad is detailed in the previous post, but I very strongly believe that if one is to bet based on models, one should not permit oneself to make adjustments based on perceived model weaknesses. Model weaknesses should be fixed by altering the models construction, not the model outputs, ad hoc.

The Bodog odds are 53.5% for both over and under, which is, in passing, a shameful robbery of the degenerate public.

TeamModel PointsModel Std. Dev.Bodog LineZ-score of LineProb. of overProb. of underValue in overValue in under
Anaheim Ducks94.78.3105.51.290.01.00.47
Arizona Coyotes91.78.380.5-1.351.00.00.47
Boston Bruins100.78.2109.51.070.01.00.47
Buffalo Sabres74.68.265.5-1.111.00.00.47
Calgary Flames87.58.372.5-1.81.00.00.47
Carolina Hurricanes88.58.381.5-0.840.990.010.46
Chicago Blackhawks105.48.1111.50.760.020.980.45
Colorado Avalanche85.58.395.51.190.01.00.47
Columbus Blue Jackets93.58.390.5-0.360.850.150.32
Dallas Stars94.28.393.5-0.090.60.40.07
Detroit Red Wings97.18.291.5-0.680.970.030.44
Edmonton Oilers79.28.380.50.160.320.680.15
Florida Panthers91.68.374.5-2.051.00.00.47
Los Angeles Kings106.88.0106.5-0.040.550.450.02
Minnesota Wild90.98.498.50.910.01.00.47
Montreal Canadiens89.08.393.50.540.060.940.41
Nashville Predators90.98.380.5-1.251.00.00.47
New Jersey Devils100.68.286.5-1.721.00.00.47
New York Islanders89.38.387.5-0.220.730.270.2
New York Rangers96.88.395.5-0.160.680.320.15
Ottawa Senators91.28.379.5-1.411.00.00.47
Philadelphia Flyers91.38.388.5-0.340.840.160.31
Pittsburgh Penguins92.28.3105.51.60.01.00.47
San Jose Sharks101.68.2102.50.110.380.620.09
St. Louis Blues101.38.2105.50.520.070.930.4
Tampa Bay Lightning95.98.395.5-0.050.560.440.03
Toronto Maple Leafs72.38.288.51.990.01.00.47
Vancouver Canucks95.58.388.5-0.850.990.010.46
Washington Capitals84.98.388.50.430.10.90.37
Winnipeg Jets92.78.380.5-1.471.00.00.47

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