Do I need to be a serious runner or logging a lot of miles to participate in the relay?

Not at all. The relay event of the mOUnTaiNBACK is designed to accommodate a wide range of training levels. The more people you have on your team, the lower will be the mileage per person. (See the team rotation and mileage tables.) On a team of 8, for example, since the course has 12 legs, four of the runners will each run just one leg of the course. Runners 5 and 8 will run one leg of 3.4 and 2.8 miles, respectively, and in terms of level of difficulty both of these legs are classified as "easy." Conversely, runners on smaller teams can expect to take on a greater challenge.