Alex--with regard to the Belmead Trail Fest, you are welcome to sign up for any distance. It is not a limited field. However, the course is changing somewhat due to all of the rain we had this spring. Certain sections of the trail can become very difficult to traverse on foot when that happens and we want to make it a fun race, not a miserable one. Please revisit the website later this summer for an updated link to a course map when it is finalized and tell your friends! It is a beautiful piece of property.