-Boundless Event Calendar-

Join us at these exciting affiliate events, and stay tuned for updates!


Boundless Arizona Running Camp ~ March 2nd-5th 2023

Join us in the desert and get your summer training started right! Perfect prep for the Leadville Race Series or Desert Rats by UTMB.

Our trail and ultra-running coaches on a 4 day and 3 night adventure as we guide you through specialized clinics and beautiful runs.

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Desert Rats Race Series Running Festival in Fruita, Colorado ~ April 14th-16th 2023

Join UTMB in celebrating 20 years running the beautiful trails of Fruita, Colorado in 2023. For two decades this race has brought the whole community together for an epic weekend adventure. Whether you're new to trail or an ultra veteran, you will not want to miss the celebration this April.


The Canyons Endurance Run by UTMB in Auburn California ~ April 28th-29th 2023

The Canyons Endurance Runs by UTMB®, the second event in the 2023 UTMB World Series the world’s leading trail running circuit, is a dual qualifier for the iconic UTMB® World Series Finals taking place in Chamonix, France and the Western States 100.

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UNBOUND Gravel~June 3rd 2023

It’s the spirit that 4,000 riders bring with them to the Flint Hills of Kansas for one weekend each spring; the spirit of an event that began with 34 participants in 2006 and now stands as the “World’s Premier Gravel Event.” And so it is fitting that the event and its organization, the one embodied by a limitless ethos that calls Emporia home, now has a name to match its ferocious spirit.” -Emporia Gazette


Leadville Trail Marathon and Heavy Half presented by La Sportiva ~ June 17th 2023

Run through the historic mining district’s challenging old mining roads and trails, and hit a high of 13,185 feet at Mosquito Pass during the Life Time Leadville Trail Marathon and Heavy Half presented by La Sportiva.


Silver Rush 50 RUN presented by La Sportiva ~ July 8th, 2023

Take on 50 miles of extreme territory that starts at 10,200 feet and reaches 12,000 feet on four separate occasions at the Life Time Silver Rush 50 Run presented by La Sportiva. It will leave your lungs burning, heart pounding and eyes completely amazed — while also preparing you for the pinnacle Leadville Trail 100 Run presented by La Sportiva.


Stages Cycling Leadville Silver Rush 50 MTB ~ July 9th 2023

Take on 50 miles that will put your skills and endurance to the test. Technical climbs and descents are met with the glorious mountain views of Leadville. 8,000 feet of elevation gain over these 50 miles presents an excellent test for the Stages Cycling Leadville Trail 100 MTB in August. Test your limits with the Silver Rush 50 MTB.

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Speedgoat Mountain Races by UTMB in Snowbird, Utah ~ July 21-22nd 2023

Embark on the adventure of a lifetime at the Speedgoat Mountain Races by UTMB®. Snowbird, one of the top ski resorts in the country, located in Sandy Utah sets the stage for this iconic mountain race.


Leadville Trail 100 MTB Presented by Stages Cycling ~ August 12th, 2023

This is it, the race of all races. One hundred miles across the high-altitude, extreme terrain of the Colorado Rockies, this event was created for only the most determined athletes. Starting at 10,152 feet and climbing to 12,424 feet, you’ll be challenged to catch your breath — while the views try to take it away.


Leadville Trail 100 RUN Presented by La Sportiva ~ August 19th 2023

The legendary “Race Across The Sky” 100-mile run is where it all started back in 1983. This is it. The race where legends are created and limits are tested. One hundred miles of extreme Colorado Rockies terrain — from elevations of 9,200 to 12,600 feet. You will give the mountain respect, and earn respect from all.


Grindstone Trail Running Festival by UTMB in Shenandoah Valley ~ September 22nd-24th 2023

Feed your sense of adventure and join us for the Grindstone Running Festival by UTMB. This one-of-a-kind event takes you through acres of national forest in the Shenandoah Valley on an iconic running adventure complete with stunning fall foliage, mountain views, and demanding terrain. With a 100M, 100K, and 21K, there's a new challenge for every runner.