The countdown has begun to the 20th anniversary of the Walt Disney World Marathon on Jan. 13, 2013, and not surprisingly, our runDisney folks are hard at work putting their creative juices together to come up with some fun new twists for the race.

So far they have added some special entertainment along the 20th mile to commemorate the 20th anniversary and added a post-race party at Downtown Disney. They are also working on the creation of a special 20th anniversary medal, which I’ll reveal later.

But the latest development that I can share with you now involves some unique twists to the course. Here’s a hint: the 2013 Walt Disney World Marathon is going to have some “high-speed’’ elements that will knock this race “out of the ballpark.’’

Check out this video for all of the new details about the fun enhancements to the 26.2-mile course that will go through the four Walt Disney World Resort theme parks – and a few other places you probably never dreamed about.

If you want to get in on the fun, just sign up at runDisney.com for the marathon or any of the other family-oriented races taking place here during the Walt Disney World Marathon Weekend presented by Cigna, Jan. 10-13.