The Bad Dragon 100k is a new addition featuring a challenging 30-hour time limit, utilizing the same course as the 100-mile race, which kicks off alongside it. The course involves extensive traverses of the Duncan Ridge, requiring runners to complete four full laps and two half laps, testing their endurance over rugged terrain. Since there are no daily progress minimums, critical cutoff points are positioned at strategic locations to ensure safety and manage pace. The accompanying 40-mile race, aimed at giving participants a taste of the 100-mile experience, allows for a single lap of the course. With its own set of cutoff times, this race caters to various runner speeds, ensuring opportunities for both fast and slower participants to compete successfully. The course's difficulty can be exacerbated by changing weather conditions, impacting overall pace significantly.