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Puerto Vallarta by UTMB
81km8153km5337km3720km20

Ereno 20K

UTMB World Series
20.0km·1050m+
March 6, 06:45 AM
Canopy River Park,
Mexico
utmb·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

Ereno 20K · Race profile

Distance
20.0km
Gain
1050m+
FlatKM
29.9
Max
848m
Min
4m

About Ereno 20K

Ereno 20K is the 20.0km trail race at Puerto Vallarta by UTMB 2027 (Canopy River Park, Mexico). The race starts on March 6, 2027 at 06:45 AM. It starts in Canopy River Park. The time limit is 5 h 30 min.

Race strategy

Run hard on the first mountain, but save energy for the second.

  • Steep 37% wall. Control your pace and stay focused.
  • Final 963m descent. Save your legs to go all out on it.
  • Control your HR on the first mountain, then run your race pace, and start the final descent from 10.2km under control, then go all out near the bottom.
  • Start · 0.0km–1.7km · Race-day nerves push your heart rate up: don't follow the crowd, find your own rhythm.
  • Settle in · 1.7km–8.5km · Climb of 529m. Plus 1 more descent. Ease in: hold back more than feels necessary. The race is still ahead. Climb by heart rate or breathing, not pace.
  • Work · 8.5km–10.2km · Climb of 373m, high point 848m. This is where the race is built: steady, solid effort. Climb by heart rate or breathing, not pace. Hike the steepest pitches.
  • Home · 10.2km–19.8km · Descent of 963m averaging 10%. Build to the finish: leave whatever you have left out on the course. Very long descent: first half under control, then even, let go only near the end.

Course

The course climbs 1050m+. With 53m/km of climbing, this is a true mountain course with sustained climbs and descents. By gradient, 41% of the distance is uphill, 46% downhill and 13% flat. The longest climb runs 7.2km at an average 7.4% grade (529m of vertical). The longest descent runs 9.6km at an average 10.0% grade (963m of vertical). The steepest climb averages 36.8% over 0.7km. The steepest descent drops at 25.2% over 0.3km. Surface: 35% smooth, 21% road, and 8% trail. Flat-equivalent effort: 29.9 FlatKM.

Summits

The highest summit on the course is The Cross (118m), 17.9km from the start.

Poles

Poles bring little benefit here: only about 1.0km of pole-friendly terrain.

Quad damage

Quad damage risk is low (index 19 of 100): a few descents worth noting, none of them decisive.

  • Control your HR on the first mountain, then run your race pace, and start the final descent from 10.2km under control, then go all out near the bottom.
  • 10.2–19.8 km · 963 m D−, -10.0% · 0.0 km ahead → even, first half under control, let go at the end

Weather

On race day, start temperatures have historically ranged from 18°C to 22°C, with around 21°C at the highest point; the chance of precipitation is about 3%.

This page has a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for Ereno 20K.

Other distances of Puerto Vallarta by UTMB 2027Hikuri 81K (81.0km)·Nakawé 53K (53.0km)·Haramara 37K (37.0km)

Other editions of Ereno 20K2026

Official websitepuerto-vallarta.utmb.world