Raramuri 100M

Race strategy

Hold a steady pace and save energy for every section.

• 471m descent. Go easy, save your quads.
• The finish is runnable. Save your legs to run it all the way.
• Long race. Control your HR and effort. Early mistakes cost the most.
• Control your HR on the first mountain, save your quads on the descents until 85.2km, then run your race pace.
• 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–13.4km · Climb of 855m. Ease in: hold back more than feels necessary. The race is still ahead. Climb by heart rate or breathing, not pace.
• Work · 13.4km–62.5km · Descent of 471m averaging 8%, descent of 364m averaging 7%, descent of 420m averaging 5%. Plus 3 more climbs. 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 · 62.5km–91.2km · Descent of 426m averaging 11%, climb of 679m, descent of 763m averaging 8%. Plus 1 more climb. 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. Your heart rate drifts down on its own: don't chase your early-race numbers, go by feel.
• Home · 91.2km–115km · 24.2km of runnable trail, high point 2487m. No heroics: settle back into your own effort and hold it to the line. Running pays off here: run wherever you can.

Course

The course climbs 5600m+. With 47m/km of climbing, this is a true mountain course with sustained climbs and descents. By gradient, 39% of the distance is uphill, 36% downhill and 25% flat. The longest climb runs 13.4km at an average 6.4% grade (855m of vertical). The longest descent runs 9.7km at an average 7.9% grade (763m of vertical). The steepest climb averages 32.9% over 0.3km. The steepest descent drops at 26.4% over 0.2km. Surface: 42% smooth, 17% trail, and 6% road. Flat-equivalent effort: 166.6 FlatKM.

Poles

Poles bring little benefit here: only about 17.0km of pole-friendly terrain.

Quad damage

Quad damage risk is high (index 50 of 100), with 48% of the load in the first half: 5 critical descents, the last of them run on already damaged legs. Downhill-specific preparation and a controlled early pace pay off here.

• Control your HR on the first mountain, save your quads on the descents until 85.2km, then run your race pace.
• #1 · 13.4–19.1 km · 471 m D−, -8.2% · 96.3 km ahead → control
• #2 · 21.4–26.3 km · 364 m D−, -7.4% · 89.1 km ahead → control
• #3 · 45.5–53.6 km · 420 m D−, -5.2% · 61.8 km ahead → control
• #5 · 62.5–66.4 km · 426 m D−, -10.9% · 49.0 km ahead → control
• #4 · 75.5–85.2 km · 763 m D−, -7.9% · 30.2 km ahead → control

Weather

On race day, start temperatures have historically ranged from 11°C to 16°C, with around 10°C at the highest point; the chance of precipitation is about 30%. Heavy rain of 10.0mm or more falls on about 4% of days around this date.

Results

51 finishers completed the 2026 edition. Men's winner: Cristofer Clemente Mora (Spain) in 13:58:51. Women's winner: Alexa Romano (United States) in 18:11:43.