Jul
25
Grand Mesa Ultras 2026
Set against Grand Mesa, one of the world’s largest flat-top mountains, this trail running event combines technical high-altitude terrain with…
Presented by Best Slope Events
Colorado Events
49 upcoming events
Aug
1
Emerald Mountain Epic Trail 2026
The Emerald Mountain Epic Trail runs on Sunday as part of a two-day mountain bike and trail running festival that…
Presented by Emerald Mountain Epic
Aug
1
Crooked Gravel 2026
The Ride Collective’s high alpine gravel challenge winds through Grand County’s pristine backcountry, combining technical climbing with sweeping descents through…
Presented by Outside Events
Aug
1
Copper Triangle 2026
This 79-mile loop delivers three legendary climbs through Colorado’s high country, each summiting above 10,000 feet. Starting from Copper Mountain…
Presented by The Ride Collective
Aug
1
Emerald Mountain Epic MTB 2026
The event for 2026 has not been confirmed yet… The Emerald Mountain Epic MTB 2026 is one of the most well-attended…
Presented by Emerald Mountain Epic
Aug
3
TransRockies Run 2026
This six-day stage race traverses 120 miles of Colorado’s most rugged backcountry with over 20,000 feet of elevation gain, running…
Presented by TransRockies Race Series
Aug
8
Cycle to the Summit Pikes Peak 2026
For road cycling enthusiasts seeking the ultimate test of endurance, this event presents a thrilling opportunity to pedal up one…
Presented by Colorado Springs Sports Corp
Aug
8
Leadville Trail 100 MTB 2026
One hundred miles and 12,000 feet of elevation gain at altitude reaching 12,600 feet makes this the ultimate test of…
Presented by Leadville Race Series
Aug
9
Leadville 10K Run 2026
The Leadville 10K offers trail runners a taste of the legendary “Race Across the Sky” course without committing to the…
Presented by Leadville Race Series
Aug
9
Breck Epic 2026
America’s premiere six-day mountain bike stage race delivers 220-240 miles of backcountry singletrack with roughly 40,000 feet of vertical gain…
Presented by Greenspeed Project
Aug
15
Leadville Trail 100 Run 2026
The Leadville Trail 100 Run stands as one of ultrarunning’s most storied challenges, born from a 1983 effort to revitalize…
Presented by Leadville Race Series
Aug
17
Colorado’s Ride 2026
This five-day stage ride through Colorado’s San Juan region connects Durango and Pagosa Springs via some of the state’s most…
Presented by Summit Cycle Solutions
Sep
12
Tour of the Moon 2026
Made famous in the 1980s Coors Classic and later featured in the cycling movie American Flyers, this event has evolved…
Presented by The Ride Collective
Sep
12
Ned Ned Trail Fest 2026
The Ned Ned Trail Fest celebrates over 40 years of trail running legacy in Nederland, Colorado, making it one of…
Presented by Peak to Peak Endurance
Sep
13
Salida 76 2026
Set against the backdrop of Salida, this September gravel event offers two distinct distance options that showcase Colorado’s high plains…
Presented by Shift Events
Sep
18
Roam Fest 2026
This three-day women-only mountain biking festival creates an intentionally inclusive space for femme, transgender, women, and non-binary riders across all…
Presented by The Roam Collective
Sep
19
Tour de Vineyards 2026
The Tour de Vineyards weaves through Colorado’s Grand Valley wine country during peak fall color season, offering riders a unique…
Presented by The Ride Collective
Sep
26
Crested Butte Ultra 2026
Mad Moose Events brings runners to Crested Butte each fall for a challenging high-altitude experience across some of Colorado’s most…
Presented by Mad Moose Events
Sep
26
The Rad Dirt Fest 2026
Produced by Life Time Events, the team behind the Leadville Race Series and Unbound Gravel, The Rad Dirt Fest showcases…
Presented by Life Time Events
Sep
26
Golden Leaf Half Marathon 2026
Recognized by Trail Runner Magazine as one of “America’s 14 Most Scenic Races,” this intimate half marathon caps at 750…
Presented by Aspen Parks & Recreation
Oct
3
Longmont Gravel 2026
Longmont Gravel offers three distinct course options across the scenic Front Range, each designed to challenge different skill levels while…
Presented by Peak to Peak Endurance
Oct
12
Beti Bike Bash 2026
The Beti Bike Bash stands out as a women-only mountain bike event that creates genuine community among female riders of…
Presented by Shift Events
Oct
31
Rexy Co2uT 2026
This point-to-point desert gravel adventure connects two iconic cycling destinations across 200 miles of remote Southwestern terrain. The full course…
Presented by Desert Gravel
Jan
23
Stagecoach Classic Ski Tour 2027
The event for 2027 has not been confirmed yet… For any Nordic Skier, the allure of Stagecoach Classic Ski Tour…
Presented by Devils Thumb Ranch
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