The figures in the blog posting were after backing every runner in every race in 2013.
Most tracks operate WPS takeouts higher than 16% which throw the numbers off to start with. The query he provided looked to use all starters which may treat members of a coupling as separate betting interests.
I'm sure the figures were meant to be a simple investigation only but those adjustments would get losses to around 23% on an 18% takeout. That's all ball parked but a truer representation beyond the headline.
|