I have thought about and discussed some of Towpath's in depth analysis of Ryan Hall's merits to be our greatest runner at the distance of marathon. The conclusion is to simply have a race in DC staging local running legend in the making "Towpath" vs. Hall. Towpath, you will not be able to hide behind overly complicated mounds of never heard of vocabulary and so on. This will be a race where sheer force and power generated via the legs, heart and lungs will win. It will be a race at any distance over 5k. The location is your choice.