One quick update....as to playing soccer in a kilt, I highly suggest an undergarment to keep the boys in check. All that turning, spinning and other such soccer-type movements are bound to pu the boys in a less-than-desireable position...I wore spandex shorts to ensure that I was never at any risk of injuring myself.

As to the road-race, as long as you are in such a manner where you are able to avoid getting the boiys "pinched" between your legs as you stride, I think bodyglide should be plenty...