I didn't run. I was up there to take pics of my friends that were running in it. Everyone ran the 1/2 marathon on Saturday. Two in that group also ran the full marathon on Sunday. That is called the Goofy race and a half. To you have to FN Goofy to it but they did. Donald is the Saturday and Mickey is the Sunday race. You get very nice medals for completing each race. I was there for this event last year. Plans in the works for next year too.
My DD is going to do the Princess 5K in February. The course looks like it starts outside of Mexico, runs thru and then finishes up outside of Epcot. I will be up there for that with camera in hand.