2018 was an anniversary year. You had numbers over 20,000 for both the half and full. Dopey had over 7,000 finishers. I don't believe the full or even goofy sold out same day. If they did it was hours later. Everything sold out in just over an hour. Demand was high no doubt but over 20,000 in an hour? I find it hard to believe. Also even Castaway Cay sold out in roughly 1.5 hours. That usually took months. You have to have the cruise booked in order to register for that. I truly believe they are keeping a cap on these races.