Angeles Crest 100 2026

The Angeles Crest 100 has challenged trail runners since 1986 through the rugged San Gabriel Mountains of Southern California. What…

Presented by Team AC100

Tour de Big Bear 2026

The Tour de Big Bear unfolds across multiple challenging routes through the San Bernardino Mountains, reaching elevations up to 8,500…

Presented by Big Bear Cycling Association

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

Enchanted Circle 2026

The Enchanted Circle follows the entire 85-mile Enchanted Circle Scenic Byway through Northern New Mexico’s high country, taking riders counterclockwise…

Presented by The Ride Collective

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

Wasatch Front 100 2026

The Wasatch Front 100 stands as one of ultrarunning’s most formidable challenges, earning its reputation as “100 miles of heaven…

Presented by Grand Slam of Ultra-Running

Mammoth Gran Fondo 2026

Starting at 8,074 feet in the Sierra mountains, the Mammoth Gran Fondo delivers one of cycling’s most spectacular high-altitude experiences.…

Presented by Mammoth Mountain Community Foundation

LoToJa Classic 2026

Started in the 1980s by two Logan cyclists seeking to create an American equivalent to the grueling one-day European classics,…

Presented by Epic Events

Mogollon Monster 100 2026

The Mogollon Monster 100 traverses Arizona’s dramatic Mogollon Rim, a 200-mile geological formation that rises 2,000 feet from high Sonoran…

Presented by Aravaipa Running

Grizzly 100 & Big Bear MTB Gran Fondo 2026

This mountain bike event in Big Bear Lake, California combines what were once two separate races into a single day…

Presented by National Ultra Endurance Race Series (NUE)

Vacation Races – Bryce Canyon Ultras 2026

This high-altitude ultra runs around the northern half and western edge of the Paunsaugunt Plateau, delivering spectacular views above and…

Presented by UTMB World Series

Tour of the White Mountains 2026

Set at a challenging 7,000 feet in the pine forests of Pinetop-Lakeside, Arizona, the Tour of the White Mountains offers…

Presented by Epic Rides

Mt. Diablo Challenge 2026

The Valley Spokesmen Bicycling Club celebrates 42 years of the Mt. Diablo Challenge, an 11.2-mile climb up one of the…

Presented by Valley Spokesmen Bicycle Club

Heart of Gold Gravel 2026

Heart of Gold Gravel explores remote roads north and east of Nevada City, California, combining the challenges of gravel cycling…

Presented by Bike Monkey

Spirit World 100 2026

Founded by gravel cyclists Heidi Rentz and Zander Ault, the Spirit World 100 unfolds across the picturesque San Rafael Valley…

Phil’s Cookie Fondo 2026

Former pro cyclist Phil Gaimon created this unique fondo that combines challenging riding through Malibu’s Santa Monica Mountains with an…

Presented by US Cycling Events

Lake Sonoma MTB 2026

This challenging 27-mile single-track loop around Lake Sonoma delivers over 4,300 feet of elevation gain with no bailout points, making…

Presented by Hopper Adventures (Grasshopper)

The Bovine Classic 2026

This Paso Robles gravel event has earned rave reviews from participants, with many calling it one of the best gravel…

Presented by Bike Monkey

Canyonlands Ultra 2026

The Canyonlands Ultra showcases Moab’s spectacular red rock terrain across six distances ranging from 15K to 100K. Organized by Mad…

Presented by Mad Moose Events

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

Moab Trail Marathon 2026

The Moab Trail Marathon takes runners through some of the most spectacular canyon country on Earth, combining narrow single-track, rugged…

Presented by Moab Trail Marathon

25 Hours in Frog Hollow 2026

Set against the stunning backdrop of Gooseberry Mesa and Zion National Park, this 25-hour endurance challenge takes place on a…

Presented by Zia Rides

Dead Horse Ultra 2026

The Dead Horse Ultra takes full advantage of Moab’s legendary Magnificent Seven trail system, delivering one of Utah’s most challenging…

Presented by Mad Moose Events

El Tour de Tucson 2026

El Tour de Tucson stands as Arizona’s largest participative cycling event, drawing nearly 7,500 cyclists from around the globe to…

Presented by Perimeter Bicycling Association