Arc 50 is the 80.0km ultra trail at Arc of Attrition by UTMB 2026 (Coverack, United Kingdom). The race starts on January 22, 2026.
By gradient, 24% of the distance is uphill, 30% downhill and 46% flat. Surface: 55% trail, 19% smooth, 16% road, and 9% technical. Flat-equivalent effort: 99.4 FlatKM.
The course is runnable enough that trekking poles are not needed.
Quad damage risk is low (index 19 of 100): a few descents worth noting, none of them decisive.
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, a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for Arc 50.
Other distances of Arc of Attrition by UTMB 2026Arc 100 (160km)·Arc 25 (40.0km)·Arc 12 (24.0km)
Other editions of Arc 502025
Official websitearcofattrition.utmb.world
