Skip to content
Endurance AnalyticsEndurance Analytics
  • Calendar
  • Trail Finder
  • Geo Quiz
  • Blog
  • AI Buddy
  • Contact
For organizers
Trail runningBiathlonSkiingSkimoOlympicsCalendarTrail FinderGPX AnalyzerRace Pace CalculatorAI BuddyComparePricingConnect AIBlog
For organizersRace website assistantFind my racePricingDocumentation

Know the course before you run it

© 2026 Endurance Analytics. All rights reserved.

Privacy policyTerms of serviceRefundsContact
  1. Home
  2. Trail running
  3. 2027
  4. Restonica Trail by UTMB
Restonica Trail by UTMB
110km11069km6952km5233km3317km17

RT 100K

UTMB World Series
69.0km·3950m+
July 10, 02:00 AM
Corte,
France
utmb·source

Race Pace Calculator · GPX Analyzer · Trail Finder

Other races: France

  • Festival HOKA Les Templiers · L'Intégrale des CaussesOctober 21, 2027 · 60.1km · 2628m+
  • Festival HOKA Les Templiers · Le Grand Trail des TempliersOctober 24, 2027 · 80.0km · 3497m+
  • Trail du Saint Jacques by UTMB · Monistrail - 50KJune 20, 2027 · 55.0km · 2100m+
  • Oisans Trail Tour · Ultra TourJuly 17, 2027 · 84.0km · 4500m+
  • Grand Raid Ventoux by UTMB · Grande Epopée Ventoux - GEVApril 24, 2027 · 87.0km · 4200m+
  • Grand Raid Ventoux by UTMB · Mistral Marathon Trail - MMTApril 25, 2027 · 51.0km · 2500m+

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: France

RT 100K · Race profile

Distance
69.0km
Gain
3950m+
Max
2200m
Min
424m

About RT 100K

RT 100K is the 69.0km trail race at Restonica Trail by UTMB 2027 (Corte, France). The race starts on July 10, 2027 at 02:00 AM. The time limit is 19 h.

Race strategy

Hold a steady pace and save energy for every section.

  • Big early climb with 1430m gain. Hold your pace, save your legs for later.
  • 1230m descent. Go easy, save your quads.
  • Final 1362m descent. Save your legs to go all out on it.
  • Long race. Control your HR and effort. Early mistakes cost the most.
  • Control your HR on the first climb, save your quads on the descents until 49.0km, then run your race pace, and start the final descent from 52.9km under control, then go all out near the bottom.
  • Start · 0.0km–1.6km · Race-day nerves push your heart rate up: don't follow the crowd, find your own rhythm.
  • Settle in · 1.6km–8.2km · Climb of 1429m. Ease in: hold back more than feels necessary. The race is still ahead. Climb by heart rate or breathing, not pace. Hike the steepest pitches.
  • Work · 8.2km–34.4km · Descent of 331m averaging 21%, climb of 575m. 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. Hike the steepest pitches.
  • Fade · 34.4km–52.9km · Climb of 668m, high point 2211m, descent of 1230m averaging 12%, climb of 640m. 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. Hike the steepest pitches. Your heart rate drifts down on its own: don't chase your early-race numbers, go by feel.
  • Home · 52.9km–66.2km · Descent of 1362m 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 3950m+. With 57m/km of climbing, this is a true mountain course with sustained climbs and descents. By gradient, 32% of the distance is uphill, 38% downhill and 30% flat. The longest climb runs 8.2km at an average 17.4% grade (1429m of vertical). The longest descent runs 13.3km at an average 10.3% grade (1362m of vertical). The steepest climb averages 42.9% over 0.2km. The steepest descent drops at 36.1% over 0.3km. Surface: 63% trail and 28% technical.

Summits

The course also passes close to Punta Finosa (887m).

Poles

Trekking poles are strongly recommended: about 10.6km of the course is steep enough for them to pay off.

Quad damage

Quad damage risk is moderate (index 44 of 100), with 28% of the load in the first half: 2 descents deserve a plan and a couple of downhill sessions before race day.

  • Control your HR on the first climb, save your quads on the descents until 49.0km, then run your race pace, and start the final descent from 52.9km under control, then go all out near the bottom.
  • #2 · 14.4–16.0 km · 331 m D−, -20.6% · 50.1 km ahead → control
  • #1 · 38.5–49.0 km · 1230 m D−, -11.7% · 17.1 km ahead → control
  • 52.9–66.2 km · 1362 m D−, -10.3% · 0.0 km ahead → even, first half under control, let go at the end

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

Other distances of Restonica Trail by UTMB 2027UTC 100M (110km)·Pianu Maiò (52.0km)·Tavignanu Trail (33.0km)·Giru di Tumbone (17.0km)

Other editions of RT 100K2026·2025

Official websiterestonica.utmb.world