This is interesting graph - why the spike for the sub 3 zone? Other than it being a popular objective perhaps?
Take into account people training, the Strava population,the runs that get published etc. That selection looks like it's skewing what is almost a normal distribution.
Lognormal, surely?
Those big data sets from strava must be quite useful for callibrating some of the pace predictor models - mcmillan etc...
@Chalfie started
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This is interesting graph - why the spike for the sub 3 zone? Other than it being a popular objective perhaps?