The 2026 American Heroes Run has concluded.
American Heroes Run
Race complete
Longmont, CO, USA · September 12, 2026
Race Day Weather
52°at start
73° high
Breezy
Dry
Cool start, warming trend ahead
Runners will face a temperature rise from 52°F at the start to a high of 71°F. Winds will be light from the ESE at 10 mph, posing minimal impact. With humidity at 57% and dew point at 45°F, hydration is key as temperatures increase; runners should adjust their pace conservatively to manage the warming conditions.
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Race weekend
Friday, September 11
10:10 AM6-Hour Open Start
10:11 AM100 Mile (100.0 mi)
4:11 PM24-Hour
Saturday, September 12
7:00 AM9 Hours & 11 Minutes
7:00 AMMarathon (26.2 mi)
8:46 AMHalf-Marathon (13.1 mi)
9:03 AM9.11-Mile (9.1 mi)
9:37 AM5K (3.1 mi)
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