Cirque Series - Arapahoe Basin, CO
Keystone, CO
Sat, Sep 5, 2026
Tomorrow! · Sat, Sep 5, 2026
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When
Saturday, September 5th, 2026
Where
28194 US-6, Keystone CO
Distance
Typical weather
38–65°F · low rain risk
See last 10 years
On this date: rain 3 of the last 10 years
2025
37–56°F
dry
2024
36–57°F
rain
2023
38–63°F
dry
2022
43–74°F
dry
2021
35–67°F
dry
2020
41–73°F
dry
2019
42–69°F
rain
2018
39–58°F
rain
2017
41–67°F
dry
2016
39–66°F
dry
Best months to race in Colorado →
Race-day forecast · Saturday, Sep 5
Cloudy · 48–69°F
Saturday, Sep 5starts near 48°F · 32% chance of rain · wind up to 9 mph
About this race
Race Overview
- Event: Cirque Series - Arapahoe Basin
- Date: September 5, 2026
- Location: 28194 US-6, Keystone, CO
- Distance: 9.4 miles with 2,211' ft vert.
Registration Info
- Link: Register Here
- Cost: Check the registration link for pricing details.
- Deadline: Please confirm the registration deadline on the official website.
- Contact: Reach out via the website for any inquiries.
Race Experience
- Scenic Route: Enjoy breathtaking views of Arapahoe Basin.
- Challenging Terrain: Prepare for a thrilling elevation gain of 2,211' ft.
- Community Spirit: Experience a vibrant atmosphere with fellow runners.
- Post-Race Festivities: Join us for celebrations at the finish line!
Course map
Train with a club
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