Lakewood, CO, United States · Saturday, October 3, 2026

Fixed Distance 50 mi

The Bear Chase 50 Mile

17 days to go

80 km Distance

1,100 m Climbing

5.7 Grit · Challenging

39.7047° N, 105.0814° W© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 14 m / km Fast & Flat. This course is relatively flat and fast. Ideal for PB attempts.

Time limit 15 hours 11:15 min/km average. Generous. Walkable throughout for most of the field. About average for a 50 mi. Measured against 455 races of the same distance. Cut-off calculator →

Field size ~44 Small. Long stretches with nobody in sight.

DUV results for the 2025 edition (50mi) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, October

Daytime high 17°C

Night low 1°C

Rainfall Mostly dry

Daylight 11 h 44 m of light

Regional 2001-2020 average for October — NASA POWER, grid elevation 2095 m. Not a forecast.

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a fast & flat course. Expect fast, runnable sections where rhythm is key.

By UltraHub Expert

👟 gear

With trail terrain, choose a shoe with moderate cushioning for optimal performance.

By UltraHub Expert

Gear for this race

Chosen for 80 km of trail with 1,100 m of ascent.

Trail Running Shoes80 km of trail — cushioning that is still there in the last quarter.
Race Nutrition80 km of self-supported fuelling between aid stations.
Hydration VestsFlask capacity for 80 km, without the bounce.
HeadlampsA 15 h limit puts you out there after dark.
GPS WatchesBattery life first — a 80 km day outlasts most full-GPS modes.

Adidas