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Ultra Trail Chattanooga by UTMB
100km10050.5km50.520.6km20.6

Chattanooga 100K

UTMB World Series
100.0km·2437m+
June 5, 06:00 AM
Chattanooga, TN, Erlanger Park,
United States
source

Race Pace Calculator · GPX Analyzer · Trail Finder

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Read

  • How to Taper for a Marathon, Half Marathon or Ultra
  • Types of Runs and What Each Workout Actually Trains
  • Hill Training for Trail Runners: Train the Descents

Full calendar: United States100K trail race calendar

Chattanooga 100K · Race profile

Distance
100km
Gain
2437m+
FlatKM
123.8
Max
635m
Min
200m

About Chattanooga 100K

Chattanooga 100K is the 100km ultra trail at Ultra Trail Chattanooga by UTMB 2027 (Chattanooga, TN, Erlanger Park, United States). The race starts on June 5, 2027 at 06:00 AM. It starts in Chattanooga, TN, Erlanger Park and finishes in Cloudland Canyon State Park. The time limit is 18 h.

Race strategy

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

  • Start easy and control your HR up to 9.7km.
  • The finish is runnable. Save your legs to run it all the way.
  • Control your HR on the first climb, then run your race pace.
  • Start · 0.0km–1.9km · Race-day nerves push your heart rate up: don't follow the crowd, find your own rhythm.
  • Settle in · 1.9km–9.7km · 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.
  • Home · 9.7km–101km · 91.0km of runnable trail, high point 636m. No heroics: settle back into your own effort and hold it to the line. Running pays off here: run wherever you can.

Course

The course climbs 2437m+. With 24m/km of climbing, the course is predominantly runnable. By gradient, 30% of the distance is uphill, 27% downhill and 43% flat. The longest climb runs 9.7km at an average 4.0% grade (391m of vertical). The steepest climb averages 24.6% over 0.4km. Flat-equivalent effort: 123.8 FlatKM.

Poles

Poles bring little benefit here: only about 3.5km of pole-friendly terrain.

Quad damage

Quad damage risk is moderate (index 23 of 100), with 38% of the load in the first half: 0 descents deserve a plan and a couple of downhill sessions before race day.

Weather

On race day, start temperatures have historically ranged from 15°C to 21°C, with around 24°C at the highest point; the chance of precipitation is about 49%. Heavy rain of 10.0mm or more falls on about 13% of days around this date.

This page has a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for Chattanooga 100K.

Other distances of Ultra Trail Chattanooga by UTMB 2027

Chattanooga 50K (50.5km)
·Chattanooga 20K (20.6km)

Official websitechattanooga.utmb.world