This is what was in my registration confirmation
" If you did not provide proof of time at the point of registration or acquire it after you have registered, then email this information to
disneysports@trackshack.com before July 1, 2014 to have your start corral placement changed. If you listed a race result as proof of time when registering online, then you do not have to do anything further. No corral changes will be made after July 1, 2014. You will no longer be able to bring proof of your estimated finish time to the Runner Relations booth during the Expo and have your start corral placement changed."