Swoope, United States · September 18 – 21, 2025
Grindstone Trail Running Festival by UTMB 2025 is a trail running event in Swoope, United States, held on September 18 – 21, 2025, with 4 races: Grindstone 100M (169 km), Grindstone 100K (105 km), Grindstone 50K (52.0 km), and Grindstone 21K (21.0 km).
Official websitegrindstone.utmb.world
| Race | Distance | D+ / D− | Start | Status |
|---|---|---|---|---|
| 169 km | — | September 18 | ||
| 105 km | — | September 18 | ||
| 52.0 km | — | September 18 | ||
| 21.0 km | 518 m+ | September 19 | Scheduled |
Other editions of Grindstone Trail Running Festival by UTMB
