Mild 60°F temps at gun time mean comfortable early miles without overheating risk. Temps will climb significantly to 76°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing.

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Distance: 9.1mi

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Race Info

The 9.11-Mile run takes its distance from the date of the September 11 remembrance that the weekend honors. It is run on the Saturday of race weekend as laps of a flat 1.05-mile loop at Rogers Grove park in Longmont, Colorado, a flat, fast course that suits runners stepping up from the 5K or easing back from the half marathon.

Website

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)

Course Map

FAQ

When is the 2026 American Heroes Run 9.11-Mile?

The 2026 American Heroes Run 9.11-Mile will be held on Saturday September 12, 2026.

What will the weather be like for the 2026 American Heroes Run 9.11-Mile?

The forecast calls for a high of 76°F and a low of 52°F with a 0% chance of rain.

Historical Weather

Based on 8 years of data

Avg Temp

69°F

L:65° H:73°

RunScore

Conditions

Rain Freq

13%

1 of 8 yrs

Wind3mph

Dew43°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2026 American Heroes Run 9.11-Mile Clear conditions throughout the day. 2026	60°/64°	-	45°
2025 American Heroes Run 9.11-Mile Clear conditions throughout the day. 2025	58°/67°	-	43°
2024 American Heroes Run 9.11-Mile Clear conditions throughout the day. 2024	68°/76°	-	41°
2023 American Heroes Run 9.11-Mile Clear conditions throughout the day. 2023	73°/79°	-	36°
2022 American Heroes Run 9.11-Mile Cloudy skies throughout the day with rain. 2022	50°/51°	Light	48°
2021 American Heroes Run 9.11-Mile Clear conditions throughout the day. 2021	73°/87°	-	39°
2020 American Heroes Run 9.11-Mile Clear conditions throughout the day. 2020	66°/77°	-	42°
2019 American Heroes Run 9.11-Mile Clear conditions throughout the day. 2019	74°/85°	-	53°

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