Set against the stunning backdrop of the Rocky Mountains, the Colorado Skyline Run is an exhilarating journey through some of nature's most breathtaking landscapes. This year’s edition takes place on September 26, 2026, offering runners a unique opportunity to experience the region’s vibrant fall foliage and crisp mountain air. The course begins in downtown Boulder, where participants will run along picturesque streets lined with historic buildings and bustling cafes before heading into the foothills of the Rockies. As the race progresses, runners encounter challenging ascents through dense forests, crossing over scenic streams and scaling steep trails that wind their way up to higher elevations. The route features a mix of paved roads, rugged dirt paths, and rocky terrain, providing both seasoned athletes and casual enthusiasts with an unforgettable challenge. The highlight of the Colorado Skyline Run is its summit climb, where participants reach an elevation of 8,000 feet, offering panoramic views of the surrounding peaks. At this point in the race, runners are treated to a momentary pause as they take in the awe-inspiring vista before continuing their descent back towards Boulder. Alongside the challenging course, the event offers excellent support facilities with hydration stations and medical aid readily available at key points along the route. Post-race festivities include refreshments and live music, creating an atmosphere of camaraderie and celebration for all participants. The Colorado Skyline Run is not just a race; it's an adventure through one of America’s most iconic natural settings, blending athletic challenge with scenic beauty in perfect harmony. For those looking to push their limits while immersed in the splendor of nature, this event promises an unforgettable experience.
Races Offered
Huntsville Rocket City Riddle Run
Sep 26, 2026
straighten
Distance —
2 Hours
terrain
Type —
Running
timer
10:00
sell
$23.18
Weather History
These values represent the 3-year monthly averages for September in Huntsville.
thermostatTemperature
18.3° / 28.5°
wb_sunnyFeels like
18.6° / 29.1°
light_mode
Avg sunshine hours
10h 6m
water_drop
Avg rainfall
2.8 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
8.3 km/h (Light breeze)
opacity
Sweat loss rate
High
terrain
Course conditions
Hard and dry surface
sunny
Max UV Index
Moderate (5.0)
humidity_mid
Humidity
71.1%
wb_twilight
Sunrise
06:29
nightlight
Sunset
18:51
About Huntsville
Learn more about the host city, Huntsville.
Huntsville is the most populous city in the U.S. state of Alabama. The population was 215,006 at the 2020 census, making it the 100th-most populous city in the U.S., while the Huntsville metropolitan area has an estimated 542,000 residents and is the second-most populous metropolitan area in the state. As of July 1, 2025, the city's population was estimated to be 233,627 – a 8.7% increase since the 2020 Census. This makes it among the top 20 fastest growing cities in the US. Huntsville is the county seat of Madison County, with portions extending into Limestone County, Marshall County, and Morgan County.