← All races
Trail

The Bear 100 Endurance Run

📅 September 24, 2027 (estimated date)📍 Logan · United States

⚠️ 2027 edition: provisional information

The date is estimated from the 2026 edition (September 25, 2026), on the same day of the week. Courses, start times, fees and description are carried over from the previous edition: check them on the official website. This page will be updated as soon as the organizer publishes them.

Available distances

100 mi

About

The Bear 100 Endurance Run starts in Logan, Utah, on September 25, 2026, at 6:00 a.m. It is a single-format trail race: a 100-mile (160.9 km) trail run in northern Utah at the end of September. There are no shorter distances, so everyone on the line is committing to a full day and night of running.

This event is for runners who already have 50-mile or 100K finishes and want a 100-miler on trails. If that describes you, plan a 20-week build with back-to-back long weekends, plenty of vertical gain, hiking practice on steep climbs, and at least one long night run to get comfortable moving by headlamp. Test your layering system for the overnight hours and set up a crew and pacers if the rules allow. Pacing conservatively through the first half matters more here than anywhere else.

D-341

Prepare for The Bear 100 Endurance Run with RunRun

An AI-generated training plan, adjusted every week based on your real sessions. Built around your goal, current level and race date.

  • Personalized plan based on your VO2max, history and weekly availability
  • Strava and Garmin sync: your sessions are analyzed and the plan adapts
  • Target paces, long runs, key sessions: everything is calculated for race day
Create my free plan No credit card. Sign up in 30 seconds.

Races nearby

Other upcoming races around Logan.