The BLACK YARD Ultra by Mamali Festival begins and ends at Mamali Festival Base Camp, located in the mountains above Mamali. The race area is situated at approximately 1454 metres above sea level. This event features a Last Runner Standing ultra alongside a 12 km trail race and a 1 km kids' race. The main ultra is designed for experienced adult trail and ultra runners, not casual beginners. The 12 km loop ascends 514 metres, primarily on trail, with 10 km of path and 2 km of dirt road.
The ultra involves repeatedly running the same 12 km loop until only one runner remains. The initial lap has a 2-hour time limit, which decreases by 3 minutes each subsequent round, increasing the challenge even though the route stays the same. Failing to meet a cut-off time or missing the next start line results in elimination. Base Camp, at 1420 metres, offers free camping, showers, toilets, meals, power access, and a festival atmosphere. Initial aid includes electrolytes, bananas, water, Coca-Cola, and snacks, transitioning after 4 hours to include potatoes, pasta, and soup. Entry is limited to 100 participants, a medical certificate is required, and mandatory equipment includes a headlamp, phone, water bottles, rain jacket, and emergency blanket.