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HOKA Kodiak Ultra Marathons by UTMB
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Kodiak 21K

20.0km·575m+
October 10
Big Bear Lake,
United States
itra·source

Race Pace Calculator · GPX Analyzer · Trail Finder

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Full calendar: United States

Kodiak 21K · Race profile

Distance
20.0km
Gain
575m+
FlatKM
26.9
Max
2491m
Min
2071m

About Kodiak 21K

Kodiak 21K is the 20.0km trail race at HOKA Kodiak Ultra Marathons by UTMB 2025 (Big Bear Lake, United States). The race starts on October 10, 2025.

Race strategy

Run the climb at race pace, build your speed on the downhill, and go all out at the finish.

  • Start easy and control your HR up to Snow Summit.
  • Hold your race pace up to 17.5km, but stay in control.
  • Ease into the early runnable section, then run your race pace, and go all out on the final descent from 17.5km.
  • Start · 0.0km–2.0km · Race-day nerves push your heart rate up: don't follow the crowd, find your own rhythm.
  • Settle in · 2.0km–8.3km · 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 · 8.3km–17.5km · 9.2km of runnable trail, high point 2491m. This is where the race is built: steady, solid effort. Running pays off here: run wherever you can.
  • Home · 17.5km–20.5km · Descent of 235m averaging 8%. Build to the finish: leave whatever you have left out on the course. Long descent: keep it even and let go only near the end.

Course

The course climbs 575m+. With 29m/km of climbing, this is a rolling, mostly runnable course. By gradient, 23% of the distance is uphill, 40% downhill and 37% flat. The longest climb runs 2.5km at an average 14.3% grade (363m of vertical). The longest descent runs 3.0km at an average 7.8% grade (235m of vertical). The steepest climb averages 23.0% over 0.4km. The steepest descent drops at 11.1% over 1.2km. Surface: 86% trail and 10% road. Flat-equivalent effort: 26.9 FlatKM.

Summits

The highest summit on the course is Snow Summit (2491m), 8.4km from the start.

Poles

Poles bring little benefit here: only about 1.7km of pole-friendly terrain.

Quad damage

Quad damage risk is low (index 8 of 100): a few descents worth noting, none of them decisive.

  • Ease into the early runnable section, then run your race pace, and go all out on the final descent from 17.5km.

Weather

On race day, start temperatures have historically ranged from 7°C to 20°C, with around 14°C at the highest point; the chance of precipitation is about 6%.

This page has a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for Kodiak 21K.

Other distances of HOKA Kodiak Ultra Marathons by UTMB 2025Kodiak 100M (162km)·Kodiak 100K (99.0km)·Kodiak 50K (48.0km)·Kodiak 10K (10.0km)

Other editions of Kodiak 21K2026

Official websitekodiak.utmb.world