Eiger Ultra Trail by UTMB 2026 2026-07-15 16km/35km/51km/101km/250km Grindelwald / Switzerland Visit Event Website → About This Event Location Grindelwald Country Switzerland Date 2026-07-15 Distances 16km/35km/51km/101km/250km Why This Event UTMB World Series event in Grindelwald offering five distances from Pleasure Trail to 250km UNESCO Trail through Swiss Alps More Runs in Switzerland View all runs in Switzerland