All the H2H races are open to anyone, with the exception of Tymor. This year, the Wawayanda, Lewis Morris, Stewart, and Kittatiny races have all been on open trails. The remaining races at Ringwood, Jungle Habitat, and Blue Mountain are also open trails.
The only local race this doesn't apply to is the 24 Hours of Allamuchy race which is partly on the Boy Scout camp, which are closed to the public.