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Grindstone Trail Running Festival by UTMB 2025

Swoope, United States · September 18 – 21, 2025

Grindstone Trail Running Festival by UTMB 2025 (Swoope, United States) is a trail running event held on September 18 – 21, 2025, with 4 races: Grindstone 100M (169km), Grindstone 100K (105km), Grindstone 50K (52.0km), and Grindstone 21K (21.0km).

Official websitegrindstone.utmb.world

Races and distances

RaceDistanceD+ / D−StartStatus
Grindstone 100M169km—September 18Results
Grindstone 100K105km—September 18Results
Grindstone 50K52.0km—September 18Results
Grindstone 21K21.0km518m+September 19Scheduled

Other editions of Grindstone Trail Running Festival by UTMB2026