The course will be marked with orange wire flags and spray chalk, at some key intersections you may also see arrow signs indicating the direction to take. You should not get lost if you pay attention and stay observant for these markers. There is always a risk that markers could be moved by other trail users, although this hasn’t been a problem in prior years.
If you stop seeing markers at regular intervals, stop and retrace your steps util you do. Never presume the person in front knows the way, they may be lost too. The responsibility to stay on course is yours, it is one of the challenges of trail running.