Extreme Challenge is a 45.4 km sky ultra of Absolute Biokovo Challenge 2025 in Makarska, Croatia. The race starts on May 10, 2025. The course climbs 4480 m+ and descends 3095 m−, between a low point of -1 m and a high point of 1732 m. By gradient, 47% of the distance is uphill, 41% downhill and 8% flat. The longest climb runs 4.8 km at an average 20.9% grade (996 m of vertical). The longest descent runs 5.0 km at 24.5% (1220 m of vertical). Surface: 72% trail, 12% smooth, 6% technical, and 6% road. Flat-equivalent effort: 92.7 FlatKM.
19 finishers completed the 2025 edition. Men's winner: Sanjin Vucan (Croatia) in 7:39:43. Women's winner: Katja Kegl Vencelj (Slovenia) in 9:17:49.
This page has the full results and splits, interactive elevation profile, gradient matrix, pacing and nutrition planner and weather climatology for Extreme Challenge.
Other distances of Absolute Biokovo Challenge 2025Sky Challenge (27.2 km)·High Challenge (14.0 km)·Vertical Challenge (5.0 km)
Other editions of Extreme Challenge2026
Official websiteabsolute-biokovo-challenge.com/o-utrci
