Arc 12 is a 24.0 km trail race of Arc of Attrition by UTMB 2026 in Coverack, United Kingdom. The race starts on January 25, 2026. The course climbs 980 m+ and descends 561 m−, between a low point of 6 m and a high point of 104 m. By gradient, 29% of the distance is uphill, 31% downhill and 39% flat. The longest climb runs 1.4 km at an average 5.6% grade (77 m of vertical). The longest descent runs 1.2 km at 4.4% (52 m of vertical). Surface: 47% trail, 35% smooth, and 18% road. Flat-equivalent effort: 29.6 FlatKM.
This page has the interactive elevation profile, gradient matrix, pacing and nutrition planner and weather climatology for Arc 12.
Other distances of Arc of Attrition by UTMB 2026Arc 100 (160 km)·Arc 50 (80.0 km)·Arc 25 (40.0 km)
Official websitearcofattrition.utmb.world
