Sinister is the eighth and last race in the Insomniac Night Trail Run and Relay Series. This race will be held on the same day as the Pass Mountain Trail runs, part of the Aravaipa Trail Run Series.
All races are held on a 9 kilometer loop of the Noso, Blevins, Moon Rock, Levee, Spillway, Cat Peaks and Cat Peaks Pass Trails.
The 30K runners will complete 3 loops, passing through the start/finish line after each lap!
The course features a mix of smooth runnable trails with just a few rollers and rocks for fun.