[1] The race takes place over 24 hours in 17 stages and features up to 70 teams and 1,200 runners.
In 2010 ultramarathoner Mark Campbell attempted to run the entire relay solo, but fell ill and could not complete it.
Another 25 teams are selected by members of the tech crew and organizing committee.
A list of accepted teams is posted in January of the year of the race.
The Cabot Trail Relay is run on public roads that are subject to periodic maintenance, closure, and detours.