Logo

American Heroes Run

Longmont, United States • 5-6 Sep 2025

The American Heroes Run, held in Longmont, Colorado, is a patriotic running event commemorating the events of 9/11. It features a variety of distances including a 100-mile ultra, marathon, half-marathon, 9.11-mile run, 5K, and timed runs such as 24-hour and 6-hour options. The race takes place on a flat, fast 1.05-mile loop course, ideal for all levels of runners.

Participants receive high-quality race shirts, finishers earn unique event coins, and 100-mile finishers get a special belt buckle. Aid stations offer hot food during overnight races, and virtual participants receive shirts and awards. The event emphasizes patriotism and remembrance. Visit the organization's website for the most recent information.

United States Colorado Longmont

Race information

Registration Facebook
24 hr
24 Hrs
100 mi
100 Miler
6 hr
6 Hour Open Start
26 mi
Marathon
13 mi
1/2 Marathon
9 mi
9.11 Miler
5 km
9 Hrs & 11 Min
Virtual - Any Distance
Visit the organization's website for the most recent information.
Trail runs nearby

Boulder Rez Marathon

Boulder - 13 mi from Longmont

The Boulder Rez Marathon, held at Boulder Reservoir in Boulder, Colorado, offers a scenic and mostly flat course with only 200 feet of elevation gain. Runners enjoy trails and dirt roads alongside the reservoir, with stunning views of the water and the Rocky Mountains. The event features multiple di..

Holy Cow Trail Stampede

Westminster - 23 mi from Longmont

The Holy COW Trail Stampede is a trail running event held in Westminster, Colorado, featuring distances including a 5K and a 10-mile race. Participants enjoy a fun, community-focused atmosphere with a western theme, running through scenic trails near the Westminster Promenade Terrace. All runners re..

Dirt Circus - Boulder

Table Mesa - 15 mi from Longmont

Dirt Circus - Boulder is a free community running event held in Boulder, Colorado, celebrating local trail running culture. Organized by UltraSignup, this one-day festival features a social group run with options of a casual 4.5-mile or 10K route through local trails. The event fosters camaraderie a..

Westminster Night Trail

Westminster - 23 mi from Longmont

...

The Westminster Night Trail is an annual night running event held at Standley Lake in Westminster, Colorado. Celebrating its 12th year, it offers a festive atmosphere with music and lights, showcasing Colorado’s natural beauty under the stars. The course features 100% packed dirt trails, including s..

Front Range Ultra Dayze

Loveland - 15 mi from Longmont

...

Front Range Ultra Dayze is an ultra-running festival held in Loveland, Colorado, featuring a variety of ultra-distance events including 50k, 100-mile, 200-mile, and timed races from 12 to 100 hours. The course is a flat, fast 2-mile loop with 80% dirt trail and 20% pavement, set in Centennial Park a..

Calarat Challenge Trail Running Festival

Jamestown - 15 mi from Longmont

The Calarat Challenge Trail Running Festival takes place in Jamestown, Colorado, at the scenic Cal-Wood Education Center and Balarat Outdoor Education Center. Held over Labor Day weekend, the event features multiple trail races including a half marathon, 10K, 5K, Kids 1K, and combination races like..