The 4th annual WC-50 is a multi-lap ultramarathon spanning throughout the entire USNWC trail system featuring both a 50k and 50-mile option. For the first time ultra-competitor or those hoping to sharpen their skills at a distance beyond the standard marathon, the 50k offers three 10.35 mile loops with approximately 3,000 feet of total elevation change. The 50k course provides a mix of challenging single-track climbs and rolling lakeside trails, offering something for runners of all levels. For the more seasoned ultra-runner or those looking to challenge themselves on a world-class course, the 50 mile course focuses on increased elevation profile and increased technical difficulty. Flat trails have been replaced with hills where possible, resulting in four 12.5 mile loops with approximately 7,000 feet of total elevation change. The 50k race has a 12 hour cut-off, and the 50 mile race cuts off at 13 hours.