Building on the success of its women-focused events, runDisney is broadening the Disney Princess Half Marathon Weekend at Walt Disney World Resort next year by adding a 10K and a new two-race challenge. The Princess 10K gives runners of various levels more opportunities to run through Disney theme parks and receive a specially-designed finisher medal. And runners looking for an even bigger challenge can sign up for the 10K on Saturday and the Half Marathon on Sunday (19.3 miles total) to earn the inaugural Disney Glass Slipper Challenge Medal to go along with medals from each individual race.