> Why have you locked off the easy complimentary answers: "women generally are smart enough to know running 100 miles at once isn't that useful" or "women on average have more important things to do".

I think you've not understood the argument; the difference between women and men narrows as distance increases. Women might even have an advantage on the longest comps if they participated at a greater rate-- that's the topic that started the subthread we're in.