The 2026 Colorado Fall Equinox Marathon has concluded.Share your finish

Colorado Fall Equinox Marathon

Race complete
Fort Collins, CO, USA · September 20, 2026
partly-cloudy-day56°·63° high·Light·Dry
7
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Race Day Weather

partly-cloudy-day
56°at start
73° high
Breezy
Dry
Your goal
0:00:00

Mild start, warm finish

Runners will face a temperature rise from 56°F at the start to 71°F towards the end, with humidity averaging 67%. A light headwind will be present particularly from miles 13 to 27, making pacing adjustments essential during those stretches. Early on, a tailwind will aid runners, but they should start conservatively and hydrate frequently as temperatures increase.

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partly-cloudy-day7
partly-cloudy-day6
clear-day6
clear-day5
clear-day5
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Pace Calculator

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Race Plan

Get your personalized Colorado Fall Equinox Marathon race plan

A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.

Race Pace
Weather Splits
Nutrition
Gear & Packing
T-Minus
Carb Tracker
Spectator Guide
Race Band

Race Info

The Colorado Fall Equinox Marathon offers runners a breathtaking point-to-point course through the picturesque Poudre River Canyon, featuring a challenging initial ascent followed by a rewarding downhill stretch. Starting at Ohana Mountain Ranch, the marathon course winds through the Buckhorn and Poudre River Canyons, culminating in a scenic finish near Fort Collins. Runners are treated to stunning views of the Cache la Poudre River, Colorado's only designated Wild & Scenic River, and are celebrated with a festive post-race party complete with music, local brews, and food.

Race weekend

Sunday, September 20
6:30 AMMarathon (26.2 mi)
Half Marathon (13.1 mi)
5M (5.0 mi)

FAQ

When is the 2026 Colorado Fall Equinox Marathon?

The 2026 Colorado Fall Equinox Marathon will be held on Sunday September 20, 2026.

Is the Colorado Fall Equinox Marathon a Boston Marathon Qualifier?

Yes, the Colorado Fall Equinox Marathon is an official Boston Marathon qualifier.

What will the weather be like for the 2026 Colorado Fall Equinox Marathon?

The forecast calls for a high of 74°F and a low of 54°F with a 100% chance of rain.

Historical Weather

Based on 6 years of data
Avg Temp
56°F
L:52° H:62°
RunScore
8
Conditions
Rain Freq
33%
2 of 6 yrs
Wind5mph
Dew44°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2025
partly-cloudy-night
55°/60°Light
8
2024
cloudy
48°/49°Light
10
2023
clear-night
48°/65°-
8
2022
clear-night
52°/66°-
8
2021
clear-night
65°/77°-
6
2019
clear-night
42°/58°-
10