To follow up on the question about submiting race results to Disney for corral placement:
I sent my email to Disney on October 19th, listing my race results from the Komen Race for the Cure 10K that I ran on September 24th. I included the name of the race, distance, my chip time, my race pace, and the URL to the race results page.
I just received a "Data Change Confirmation" email from Disney this afternoon, which showed my original finish time of 3:30 and my new finish time of 2:30 based upon the race results from the Komen Race for the Cure 10K. Yay! It worked!
So now, my corral placement will be based upon a 2:30 anticipated finish time that they calculated based upon my submitted race result.