Arc 50 is a 80.0 km ultra trail of Arc of Attrition by UTMB 2026 in Coverack, United Kingdom. The race starts on January 22, 2026. The course climbs 2038 m+ and descends 1971 m−, between a low point of 2 m and a high point of 119 m. By gradient, 24% of the distance is uphill, 30% downhill and 46% flat. The longest climb runs 1.2 km at an average 5.4% grade (67 m of vertical). The longest descent runs 1.5 km at 3.0% (46 m of vertical). Surface: 55% trail, 19% smooth, 16% road, and 9% technical. Flat-equivalent effort: 99.4 FlatKM.
435 finishers completed the 2026 edition. Men's winner: Kristian Jones (Great Britain) in 7:09:41. Women's winner: Gemma Hillier Moses (Great Britain) in 8:12:56.
This page has the full results and splits, interactive elevation profile, gradient matrix, pacing and nutrition planner and weather climatology for Arc 50.
Other distances of Arc of Attrition by UTMB 2026Arc 100 (160 km)·Arc 25 (40.0 km)·Arc 12 (24.0 km)
Other editions of Arc 502025
Official websitearcofattrition.utmb.world
