Tuesday June 11th at noon EST is when registration to the general public opens for all the Princess Half Marathon events. If the early registration for DVC, APs, and Visa cardholders is any indiction than the Glass Slipper Challenge will sell out VERY fast. All the spots that were allocated for early registration sold out within days. My next guess would be that the 10k will sell out pretty quickly as well. The other 10ks that runDisney has introduced have sold out very very fast, so I would imagine this one would be the same way.
If you are still on the fence about registering here are some reasons why you should:
Don’t wait to long before you register! That is my best advice.