I'm still curious on how much this is an artefact of less participants that run >150km marathons. The link in the other comment compiles data over lots of runne

I'm still curious on how much this is an artefact of less participants that run >150km marathons. The link in the other comment compiles data over lots of runners from lots of marathons, but I still haven't found data about how much actually runs the >150km marathons.