Trail · Marathon · Already run
American Heroes Run
Longmont, CO
American Heroes Run is a trail race of 26.2 miles (42 km) in Longmont, Colorado. It was last run on Friday, September 11, 2026. Registration is open to all.
There are 25 other upcoming marathons in Colorado.
26.2miDistance
81°Flow 52°FTypical race day
Questions about American Heroes Run
When is American Heroes Run 2026?
American Heroes Run 2026 was on Friday, September 11, 2026.
Where is American Heroes Run?
American Heroes Run is held in Longmont, Colorado.
How long is American Heroes Run?
American Heroes Run is 26.2 miles (42 km).
How do you get into American Heroes Run?
American Heroes Run has open registration.
What is the weather usually like at American Heroes Run?
Around American Heroes Run's date, the day's high is typically about 81°F (27°C) and the low about 52°F (11°C), averaged over recent years.
What other marathons are there in Colorado?
Other upcoming marathons in Colorado include Crested Butte Ultra (September 26, 2026), Deep Creek Trail Half Marathon (September 26, 2026) and Colorado Springs Marathon (October 3, 2026).
Other races in Colorado
- Crested Butte Ultra 35K · Sep 26, 2026
- Deep Creek Trail Half Marathon Marathon · Sep 26, 2026
- Colorado Springs Marathon Marathon · Oct 3, 2026
- Sage Burner Trail Race 28K · Oct 3, 2026
- Long View Marathon Marathon · Oct 10, 2026
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