Silly question - but it seems like someone with longer legs and therefore a longer stride would automatically have an advantage over someone with short legs and a short stride - like I have to take 2 steps for each one my husband takes so of course he can out run me.......

btw - for cycling its supposedly the opposite, a long femur gives a biomechanical advantage (though a long foot is supposed to counterbalance any advantage a long thigh gives?? - its all about levers on a bike)