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

Chattanooga 50K

UTMB World Series
50.5km·1164m+
June 5, 07:00 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 States50K trail race calendar

Chattanooga 50K · Race profile

Distance
50.5km
Gain
1164m+
FlatKM
62.2
Max
635m
Min
196m

About Chattanooga 50K

Chattanooga 50K is the 50.5km trail race at Ultra Trail Chattanooga by UTMB 2027 (Chattanooga, TN, Erlanger Park, United States). The race starts on June 5, 2027 at 07:00 AM. It starts in Chattanooga, TN, Erlanger Park. The time limit is 10 h.

Race strategy

Run easy on the first mountain, then go all out on the second.

  • 566m descent. Go easy, save your quads.
  • All downhill to the finish: go all out!
  • Control your HR on the first climb, save your quads on the descents until 33.5km, then run your race pace, and start the final descent from 40.0km under control, then go all out near the bottom.
  • Start · 0.0km–2.2km · Race-day nerves push your heart rate up: don't follow the crowd, find your own rhythm.
  • Settle in · 2.2km–23.5km · 14.1km of runnable trail, high point 636m. 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. Running pays off here: run wherever you can.
  • Work · 23.5km–40.0km · Descent of 566m averaging 6%. Plus 1 more climb. This is where the race is built: steady, solid effort. Climb by heart rate or breathing, not pace. This descent is hard on the legs: short steps, stay in control, poles if you have them.
  • Home · 40.0km–50.3km · Descent of 379m averaging 4%. No heroics: settle back into your own effort and hold it to the line. Very long descent: first half under control, then even, let go only near the end.

Course

The course climbs 1164m+. With 23m/km of climbing, the course is predominantly runnable. By gradient, 33% of the distance is uphill, 31% downhill and 36% flat. The longest climb runs 9.3km at an average 4.3% grade (397m of vertical). The longest descent runs 10.4km at an average 3.7% grade (379m of vertical). The steepest climb averages 20.2% over 0.6km. The steepest descent drops at 18.1% over 0.3km. Flat-equivalent effort: 62.2 FlatKM.

Poles

Poles bring little benefit here: only about 1.7km of pole-friendly terrain.

Quad damage

Quad damage risk is low (index 16 of 100): a few descents worth noting, none of them decisive.

  • Control your HR on the first climb, save your quads on the descents until 33.5km, then run your race pace, and start the final descent from 40.0km under control, then go all out near the bottom.
  • #1 · 23.5–33.5 km · 566 m D−, -5.6% · 16.8 km ahead → control
  • 40.0–50.3 km · 379 m D−, -3.7% · 0.0 km ahead → even, first half under control, let go at the end
  • Weather

    On race day, start temperatures have historically ranged from 16°C to 22°C, with around 22°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 50K.

    Other distances of Ultra Trail Chattanooga by UTMB 2027Chattanooga 100K (100km)·Chattanooga 20K (20.6km)

    Official websitechattanooga.utmb.world