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Ultra Blue Island
101km10163km63

Whalers Great Route Ultra-Trail®

101.0km·4722m+/4722m−
May 1
Portugal
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: Portugal100K trail race calendar

Whalers Great Route Ultra-Trail® · Race profile

Distance
101km
Gain
4722m+
Loss
4722m−
FlatKM
143.3
Max
1007m
Min
-4m

About Whalers Great Route Ultra-Trail®

Whalers Great Route Ultra-Trail® is the 101km ultra trail at Ultra Blue Island 2027 (Portugal). The race starts on May 1, 2027.

Race strategy

Hold a steady pace and save energy for every section.

  • 1444m descent. Go easy, save your quads.
  • Long race. Control your HR and effort. Early mistakes cost the most.
  • Ease into the early runnable section, save your quads on the descents until 57.0km, then run your race pace, and go all out on the final descent from 92.2km.
  • Start · 0.0km–1.2km · Race-day nerves push your heart rate up: don't follow the crowd, find your own rhythm.
  • Settle in · 1.2km–13.5km · Climb of 919m. 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 · 13.5km–47.6km · Descent of 1444m averaging 7%, high point 1011m. 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. Running pays off here: run wherever you can.
  • Fade · 47.6km–92.2km · Descent of 395m averaging 6%, climb of 908m. Plus 2 more climbs and 2 descents. Your energy fades, and that's normal: hold a steady effort and stop counting the miles. 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. Running pays off here: run wherever you can. Your heart rate drifts down on its own: don't chase your early-race numbers, go by feel.
  • Home · 92.2km–101km · Descent of 446m averaging 5%. No heroics: settle back into your own effort and hold it to the line. Long descent: keep it even and let go only near the end.

Course

The course climbs 4722m+ and descends 4722m−. With 47m/km of climbing, this is a true mountain course with sustained climbs and descents. By gradient, 38% of the distance is uphill, 44% downhill and 18% flat. The longest climb runs 9.6km at an average 9.5% grade (908m of vertical). The longest descent runs 20.0km at an average 7.2% grade (1444m of vertical). The steepest climb averages 28.9% over 0.5km. The steepest descent drops at 28.9% over 0.5km. Surface: 52% smooth, 28% trail, and 16% road. Flat-equivalent effort: 143.3 FlatKM.

Poles

Poles bring little benefit here: only about 14.9km of pole-friendly terrain.

Quad damage

Quad damage risk is high (index 51 of 100), with 50% of the load in the first half: 2 critical descents, the last of them run on already damaged legs. Downhill-specific preparation and a controlled early pace pay off here.

  • Ease into the early runnable section, save your quads on the descents until 57.0km, then run your race pace, and go all out on the final descent from 92.2km.
  • #1 · 22.2–42.2 km · 1444 m D−, -7.2% · 58.5 km ahead → control
  • #2 · 50.4–57.0 km · 395 m D−, -6.0% · 43.7 km ahead → control
  • 66.6–70.7 km · 384 m D−, -9.4% · 30.0 km ahead → your pace
  • 92.2–100.7 km · 446 m D−, -5.2% · 0.0 km ahead → even, let go at the end

Weather

On race day, start temperatures have historically ranged from 15°C to 17°C, with around 10°C at the highest point; the chance of precipitation is about 33%. Heavy rain of 10.0mm or more falls on about 4% of days around this date.

This page has a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for Whalers Great Route Ultra-Trail®.

Other distances of Ultra Blue Island 2027Ultra Blue Island Trail (63.0km)

Other editions of Whalers Great Route Ultra-Trail®2026

Official websitewww.azorestrailrun.com