Ultra Running Hub Longmont, CO, United States · Friday, September 11, 2026
Fixed Distance 50K
American Heroes Races - 9 hour 11 minute Run
Race completed
50 km Distance
not publishedn/a Climbing
2.5 est Grit · Entry level
Calculated from 50 km alone — the organiser has not published an elevation profile. Read 2.5 as a floor, not a verdict.
What the course asks
Field size ~4 Tiny. You will run alone for most of it.
DUV results for the 2025 edition (9:11h) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, September
Daytime high 26°C
Night low 10°C
Rainfall Mostly dry
Daylight 12 h 42 m of light
Regional 2001-2020 average for September — NASA POWER, grid elevation 1801 m. Not a forecast.
The Aid Station
Course-specific beta from the community
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 50 km of trail.
- Trail Running Shoes50 km of trail — cushioning that is still there in the last quarter.
- Race Nutrition50 km of self-supported fuelling between aid stations.
- Hydration VestsFlask capacity for 50 km, without the bounce.
- GPS WatchesBattery life first — a 50 km day outlasts most full-GPS modes.
Course Notes
The course is a flat but beautifully scenic 1 mile loop around the lake and park at Rogers Grove in Longmont.
Similar races
Other 50K trail ultras, closest in distance first.