May
16
Wild Horse Gravel 2026
Wild Horse Gravel provides rare access to the exclusive High Lonesome Ranch’s backcountry terrain that remains off-limits most of the…
Presented by Outside Events
Colorado Events
48 upcoming events
Jun
13
The Hundo 2026
Set in the Rocky Mountains near Bailey, Colorado, The Hundo combines challenging mountain biking with meaningful community impact. Proceeds support…
Presented by Shift Events
Jun
13
Pikes Peak APEX 2026
This three-day mountain bike stage race attracts professionals and amateurs from around the world, competing for a $25,000 prize purse.…
Presented by Colorado Springs Sports Corp
Jun
19
Leadville Trail 100 Run Camp 2026
This intensive three-day training camp prepares runners for the legendary Leadville Trail 100, offering guided exploration of key course sections…
Presented by Leadville Race Series
Jun
25
SBT GRVL 2026
SBT GRVL has evolved into a full weekend of gravel cycling with two distinct formats. Saturday features a non-competitive ride…
Presented by SBT GRVL
Jun
27
Leadville Trail Marathon and Heavy Half 2026
The Leadville Trail Marathon and Heavy Half put you through arguably the nation’s toughest and highest-altitude marathon experience. The route…
Presented by Leadville Race Series
Jul
10
Hardrock 100 Endurance Run 2026
The Hardrock 100 Endurance Run covers 102.5 miles with 33,197 feet of climbing and descent through Colorado’s San Juan Range…
Presented by Rocky Mountain Slam Series
Jul
11
Triple Bypass Gran Fondo 2026
Established in 1988, the Triple Bypass Gran Fondo covers 118 miles with over 10,800 feet of elevation gain across three…
Presented by Shift Events
Jul
11
Ned Gravel 2026
Held annually in July in Nederland, Colorado, Ned Gravel stands out for its unwavering commitment to diversity and inclusion in…
Presented by Peak to Peak Endurance
Jul
11
Silver Rush 50 Run 2026
The Silver Rush 50 Run covers 50 miles and 7,942 feet of elevation gain through Colorado’s high Rocky Mountain mining…
Presented by Life Time Events
Jul
12
Silver Rush 50 MTB 2026
This 50-mile mountain bike race delivers one of the most challenging altitude tests in endurance sports, starting at 10,200 feet…
Presented by Leadville Race Series
Jul
17
FoCo Fondo 2026
The FoCo Fondo combines challenging gravel cycling with a festival atmosphere that sets it apart from typical racing events. Founded…
Presented by Bike Sports
Jul
18
Power of Four Trail Run 2026
This challenging mountain trail run connects the four peaks of the Aspen Snowmass area—Aspen Mountain, Aspen Highlands, Buttermilk, and Snowmass—across…
Presented by Aspen Snowmass Events & Experiences
Jul
18
719 Ride 2026
This homegrown Colorado Springs cycling event distinguishes itself with a unique multi-lap format on a challenging 14-mile loop featuring 1,800…
Presented by Gran Fondo National Series
Jul
24
Leadville Stage Race 2026
The Leadville Stage Race transforms the legendary Leadville Trail 100 MTB course into a three-day adventure through the Colorado Rockies.…
Presented by Leadville Race Series
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
Jul
25
Snowmass 50 2026
The Snowmass 50 presents a 25-mile single-track loop with 5,000 feet of climbing through some of the finest mountain biking…
Presented by Aspen Snowmass Events & Experiences
Jul
25
Blue Sky Hill Climb 2026
This storied race traces its lineage back to 1962, originally known as the Mt. Evans Hill Climb before being renamed…
Presented by Shift Events
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 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
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
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