Skip to content
Endurance AnalyticsEndurance Analytics
  • Calendar
  • Trail Finder
  • Geo Quiz
  • Blog
  • Trail Buddy
Trail runningBiathlonSkiingSkimoOlympicsCalendarTrail FinderGPX AnalyzerRace Pace CalculatorChallengesTrail BuddyComparePricingConnect AIBlog

Know the course before you run it

© 2026 Endurance Analytics. All rights reserved.

Privacy policyTerms of serviceRefundsContact
  1. Home
  2. Trail running
  3. 2025
  4. Red Feather Trail Jamboree
Red Feather Trail Jamboree
80km8050km5022km22

Red Feather Trail Jamboree Half Marathon

22.0km·520m+
September 26
Red Feather Lakes,
United States
itra

Race Pace Calculator · GPX Analyzer · Trail Finder

Other races: United States

  • Dead Horse Ultra · Dead Horse 30KNovember 14, 2026 · 30.0km · 527m+
  • Dead Horse Ultra · Dead Horse 15KNovember 14, 2026 · 15.0km · 284m+
  • Dead Horse Ultra · Dead Horse 50KNovember 14, 2026 · 50.0km · 855m+
  • Dead Horse Ultra · Dead Horse 50 MileNovember 14, 2026 · 80.5km · 1492m+
  • HOKA Pacific Trails California by UTMB · Pacific Trails 50KNovember 13, 2026 · 50.0km

Read

  • Types of Runs and What Each Workout Actually Trains
  • Hill Training for Trail Runners: Train the Descents
  • Downhill Running Muscle Damage: Why Descents Wreck Quads

Full calendar: United States

Red Feather Trail Jamboree Half Marathon · Race profile

Distance
22.0km
Gain
520m+
FlatKM
26.0
Max
2604m
Min
2291m

About Red Feather Trail Jamboree Half Marathon

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.

Race strategy

Start easy, build your effort, and go all out at the finish.

  • The finish is runnable. Save your legs to run it all the way.
  • High point at 2604m. Control your HR at altitude.
  • Control your HR on the first climb, then run your race pace.
  • Start · 0.0km–2.6km · Race-day nerves push your heart rate up: don't follow the crowd, find your own rhythm.
  • Settle in · 2.6km–9.0km · Plus 1 more climb. Ease in: hold back more than feels necessary. The race is still ahead. Climb by heart rate or breathing, not pace. At altitude your pace drops, and that's fine.
  • Home · 9.0km–22.9km · 14.0km of runnable trail, high point 2604m. Build to the finish: leave whatever you have left out on the course. Running pays off here: run wherever you can. At altitude your pace drops, and that's fine.

Course

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.

Poles

The course is runnable enough that trekking poles are not needed.

Quad damage

Quad damage risk is low (index 8 of 100): a few descents worth noting, none of them decisive.

Weather

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)