Runners competing in the 20th anniversary Walt Disney World Marathon â€“ registration opens today - will experience several unique features, including a special 20th anniversary medal, new entertainment elements and a new post-race party. To mark two decades of the Walt Disney World Marathon, the 2013 marathon, which anchors the Walt Disney World Marathon Weekend presented by Cigna, will have enhanced entertainment at Mile Marker 20 to celebrate the 20th anniversary. And the finishers will take home a specially-designed 20th anniversary Mickey Mouse medal, plus they can celebrate their achievement at a new post-race party at Downtown Disney. The marathon weekend, which is expected to draw a sellout field of more than 20,000 for the 26.2-mile marathon, is Jan. 10-13 and will again feature Kidsâ€™ Races throughout the weekend, including the Mickey Mile, a Family Fun Run 5K on Friday, the Half Marathon on Saturday and the Marathon on Sunday. There is also Goofyâ€™s Race and a Half Challenge which involves running the Half Marathon and the full Marathon â€“ 39.3 miles! The Health and Fitness Expo runs throughout the weekend at ESPN Wide World of Sports Complex and features the latest in running technology and fashion, as well as renowned running experts like Jeff Galloway, the official training consultant for runDIsney. Runners can register at here There is reduced pricing for early registrants. Below is pricing and the schedule of events for the 2013 Walt Disney World Marathon Weekend presented by Cigna.