Jul
11
Oregon 24/12 2026
This overnight mountain biking endurance test challenges riders to complete as many 11-mile loops as possible in either 12 or…
Presented by Mudslinger Events
United States Events
67 upcoming events
Jul
11
Carrabassett Backcountry Cycle Challenge 2026
As part of the National Ultra Endurance Series, the Carrabassett Backcountry Cycle Challenge tests riders across three distances: approximately 100K,…
Presented by National Ultra Endurance Race Series (NUE)
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
18
Tahoe Trail 2026
This Leadville Race Series mountain bike event takes place at Northstar California Resort in the Sierra Nevada mountains, offering riders…
Presented by Life Time Events
Jul
18
Sturdy Dirty 2026
The world’s largest women-specific enduro mountain bike race takes place in the rugged trails of Raging River State Forest, Washington.…
Presented by Sturdy B Racing
Jul
18
High Cascades 100 2026
The 100-mile course covers just under 10,000 feet of elevation gain through the mountains surrounding Bend, Oregon. The route was…
Presented by Mudslinger Events
Jul
18
24 Hours in the Enchanted Forest 2026
The 24-hour format challenges riders to complete as many laps as possible on a demanding 13.5-mile loop through the Santa…
Presented by Zia Rides
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
Laramie Range Epic 2026
The Laramie Range Epic winds through Wyoming’s Pole Mountain trail system on 32 miles of technical singletrack that climbs 3,190…
Presented by Team LRE
Jul
25
Wilderness 101 2026
This legendary Pennsylvania race helped establish ultra-endurance mountain biking on the East Coast in the early 1990s and remains a…
Presented by National Ultra Endurance Race Series (NUE)
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
Aug
1
Pierre’s Hole 100 2026
Set against the dramatic backdrop of the Tetons near Grand Targhee Resort, Pierre’s Hole 100 delivers one of the most…
Presented by National Ultra Endurance Race Series (NUE)
Aug
1
24 Hours of Great Glen 2026
Nestled at the base of Mt. Washington in Pinkham Notch, the 24 Hours of Great Glen combines serious endurance racing…
Presented by Great Glen Trails Outdoor Center
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
6
Downieville Classic 2026
The 26th iteration of this iconic mountain bike festival brings a unique dual-discipline challenge to California’s Sierra Nevada. The weekend…
Presented by Sierra Buttes Trail Stewardship
Aug
8
Oregon 6-Hour MTB 2026
This event represents the return of the beloved Oregon endurance MTB format after the popular Oregon 24/12 was cancelled due…
Presented by Mudslinger Events
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
8
Ore to Shore (O2S) 2026
Michigan’s largest mass-start, point-to-point mountain bike race transforms Marquette County’s stunning terrain into an epic adventure from iron country to…
Presented by Team O2S
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
Glori Days 50 2026
The Glori Days 50 delivers a punishing 50-mile test through Glorieta Adventure Camps’ extensive trail network in the foothills of…
Presented by Zia Rides
Aug
22
Big Sky Biggie 2026
This Rockies classic offers three distinct courses traversing Big Sky’s diverse terrain, from Town Center to the slopes of Big…
Presented by Big Sky Biggie
Aug
29
Shenandoah Mountain 100 2026
Set against the stunning backdrop of Virginia’s George Washington National Forest, the Shenandoah Mountain 100 stands as the most popular…
Presented by National Ultra Endurance Race Series (NUE)
Aug
29
Birken Cycle Norway 2026
Born from the legendary 1206 rescue of infant Norwegian King Haakon Haakonsson, Birkebeinerrittet has evolved from its cross-country skiing origins…
Presented by Birken AS
Aug
30
Dakota Five-O 2026
This 50-mile mountain bike race in early autumn delivers 90% singletrack through the Black Hills with over 6,500 feet of…
Presented by Ridge Rider Racing
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