The Joe English Twilight Challenge is an evening/nightime trail run hosted at Freestyle Farm in Amherst, NH. This event consists of a marathon, a half-marathon and a 6-hour ultra-marathon. The 6-hour ultra may be run individually or by 2- or 5 member teams. Shorter distance runners compete in the two-lap run which covers 5.24 miles. After dusk, much of the race is run in the moonlight on equestrian trails through woods, over fields and around a 50-acre pond. The course is marked with fluorescent light sticks, ground flags and occasional signal fires. Headlamps are essential.