A completely different take on the numbers (if they are indeed using the titles to relate to numbers) A race on 3/4 that is a 4 person 50 mile relay. 3/4/12 is a Sunday, possibly the same weekend as ESPN The Weekend next year, so maybe something to tie into the existing 5k? But that does put 2 larger endurance races right next to each other since they already announced the 2012 Princess dates.