Red Feather Trail Jamboree Half Marathon is the 22.0km trail race at Red Feather Trail Jamboree 2025 (Red Feather Lakes, United States). The race starts on September 26, 2025.
Start easy, build your effort, and go all out at the finish.
The course climbs 520m+. With 24m/km of climbing, the course is predominantly runnable. By gradient, 44% of the distance is uphill, 42% downhill and 14% flat. The longest climb runs 9.0km at an average 4.1% grade (368m of vertical). The steepest climb averages 10.5% over 0.5km. Surface: 86% trail and 9% smooth. Flat-equivalent effort: 26.0 FlatKM.
The course is runnable enough that trekking poles are not needed.
Quad damage risk is low (index 8 of 100): a few descents worth noting, none of them decisive.
On race day, start temperatures have historically ranged from 7°C to 18°C, with around 16°C at the highest point; the chance of precipitation is about 26%.
This page has a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for Red Feather Trail Jamboree Half Marathon.
Other distances of Red Feather Trail Jamboree 2025Red Feather Trail Jamboree 50mi (80.0km)·Red Feather Trail Jamboree 50K (50.0km)