The Predictability of Game Margins

In a recent blog post I described how the results of games in 2013 have been more predictable than game results from previous seasons in the sense that the final victory margins have been, on average, closer to what you'd have expected them to be based on a reasonably constructed predictive model. In short, teams have this year won by margins closer to what an informed observer, like a Bookmaker, would have expected.

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The Predictability of 2013

Friend of MAFL, Michael, e-mailed me earlier to ask about my claim that 2013 was on track to be the most predictable MAFL season ever, pointing out, quite correctly, that bookmaker favourites have been winning at about the same rate - perhaps even at a slightly higher rate - as they had been at the same time last year.

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Is That A Good Probability Score?

Each week over on the Wagers & Tips blog, and occasionally here in the Statistical Analysis blog I use probability score as a measure of a probability predictor's performance.

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