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Puerto Vallarta by UTMB
81km8153km5337km3720km20

Haramara 37K

UTMB World Series
37.0km·1600m+
March 6, 05:00 AM
Malecón Puerto Vallarta,
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

Haramara 37K · Race profile

Distance
37.0km
Gain
1600m+
FlatKM
52.6
Max
848m
Min
4m

About Haramara 37K

Haramara 37K is the 37.0km trail race at Puerto Vallarta by UTMB 2027 (Malecón Puerto Vallarta, Mexico). The race starts on March 6, 2027 at 05:00 AM. It starts in Malecón Puerto Vallarta. The time limit is 9 h.

Race strategy

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

  • Steep 37% wall. Control your pace and stay focused.
  • Final 951m descent. Save your legs to go all out on it.
  • Ease into the early runnable section, then run your race pace, and start the final descent from 26.6km under control, then go all out near the bottom.
  • Start · 0.0km–1.5km · Race-day nerves push your heart rate up: don't follow the crowd, find your own rhythm.
  • Settle in · 1.5km–20.2km · 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 · 20.2km–26.6km · Climb of 373m, high point 848m. Plus 1 more descent. This is where the race is built: steady, solid effort. Climb by heart rate or breathing, not pace. Hike the steepest pitches.
  • Home · 26.6km–36.3km · Descent of 951m averaging 10%. 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 1600m+. With 43m/km of climbing, this is a rolling, mostly runnable course. By gradient, 36% of the distance is uphill, 36% downhill and 28% flat. The longest climb runs 6.7km at an average 6.7% grade (450m of vertical). The longest descent runs 9.7km at an average 9.9% grade (951m of vertical). The steepest climb averages 36.7% over 0.7km. The steepest descent drops at 25.7% over 0.2km. Surface: 41% smooth, 27% road, and 6% trail. Flat-equivalent effort: 52.6 FlatKM.

Summits

The highest summit on the course is The Cross (118m), 34.4km from the start.

Poles

Poles bring little benefit here: only about 1.4km of pole-friendly terrain.

Quad damage

Quad damage risk is moderate (index 23 of 100), with 12% of the load in the first half: 0 descents deserve a plan and a couple of downhill sessions before race day.

  • Ease into the early runnable section, then run your race pace, and start the final descent from 26.6km under control, then go all out near the bottom.
  • 20.2–25.0 km · 339 m D−, -7.1% · 11.3 km ahead → your pace
  • 26.6–36.3 km · 951 m D−, -9.9% · 0.0 km ahead → even, first half under control, let go at the end
  • Weather

    On race day, start temperatures have historically ranged from 19°C to 23°C, with around 24°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 Haramara 37K.

    Other distances of Puerto Vallarta by UTMB 2027Hikuri 81K (81.0km)·Nakawé 53K (53.0km)·Ereno 20K (20.0km)

    Other editions of Haramara 37K2026

    Official websitepuerto-vallarta.utmb.world