About Never Summer 100k Never Summer 100k
Never Summer 100k Never Summer 100k is the 103km ultra trail at Never Summer 100k 2025 (Gould, United States). The race starts on July 25, 2025.
Race strategy
Hold a steady pace and save energy for every section.
- Steep 36% wall. Control your pace and stay focused.
- 852m 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 climb, save your quads on the descents until 75.8km, then run your race pace.
- 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–18.3km · Climb of 737m. 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. At altitude your pace drops, and that's fine.
- Work · 18.3km–46.0km · Descent of 257m averaging 5%, climb of 713m, descent of 852m averaging 9%, high point 3612m. 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. At altitude your pace drops, and that's fine. Hike the steepest pitches.
- Fade · 46.0km–98.5km · Climb of 731m, descent of 596m averaging 9%, descent of 660m averaging 10%. Plus 2 more climbs. 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. At altitude your pace drops, and that's fine. Your heart rate drifts down on its own: don't chase your early-race numbers, go by feel.
- Home · 98.5km–105km · 7.0km of runnable trail. No heroics: settle back into your own effort and hold it to the line. Running pays off here: run wherever you can. At altitude your pace drops, and that's fine.
Course
The course climbs 3963m+. With 38m/km of climbing, this is a rolling, mostly runnable course. By gradient, 34% of the distance is uphill, 34% downhill and 32% flat. The longest climb runs 11.4km at an average 6.4% grade (731m of vertical). The longest descent runs 9.2km at an average 9.2% grade (852m of vertical). The steepest climb averages 42.3% over 0.5km. The steepest descent drops at 33.1% over 0.3km. Surface: 79% trail and 15% smooth. Flat-equivalent effort: 145.9 FlatKM.
Summits
The highest summit on the course is North Diamond Peak (3613m), 36.8km from the start. Other named summits along the route: Mr. Big (3477m). The course also passes close to Seven Utes Mountain (3477m).
Poles
Poles bring little benefit here: only about 12.9km of pole-friendly terrain.
Quad damage
Quad damage risk is moderate (index 48 of 100), with 50% of the load in the first half: 4 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 75.8km, then run your race pace.
- #3 · 20.6–25.9 km · 257 m D−, -4.9% · 79.6 km ahead → control
- #1 · 36.7–46.0 km · 852 m D−, -9.2% · 59.5 km ahead → control
- #2 · 57.3–64.0 km · 596 m D−, -9.0% · 41.5 km ahead → control
- #4 · 69.0–75.8 km · 660 m D−, -9.7% · 29.6 km ahead → control
Weather
On race day, start temperatures have historically ranged from 15°C to 23°C, with around 18°C at the highest point; the chance of precipitation is about 52%.
This page has a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for Never Summer 100k Never Summer 100k.
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