List of races

Grindstone Trail Running Festival

mozart 100 by UTMB

Trail 100 Andorra by UTMB

Trail du Saint Jacques by UTMB

Kaga Spa Trail Endurance 100 by UTMB

Torrencial Chile by UTMB

La Sportiva Lavaredo Ultra Trail by UTMB

Western States® 100-Mile Endurance Run

HOKA Val D'Aran by UTMB®

Restonica Trail

Trail Verbier St Bernard by UTMB

Eiger Ultra Trail by UTMB

Monte Rosa Walserwaeg by UTMB

Speedgoat Mountain Races

Quito Trail Ecuador by UTMB®

KAT100 by UTMB

HOKA UTMB Mont-Blanc

Wildstrubel by UTMB®

Paraty Brazil by UTMB

Julian Alps Trail Run by UTMB

Nice Côte d'Azur by UTMB®

Malaysia Ultra-Trail by UTMB 

Kaçkar by UTMB

Ultra Trail Whistler by UTMB

Chihuahua by UTMB®

Kodiak Ultra Marathons by UTMB

TransJeju by UTMB

Ultra-Trail® Ninghai by UTMB

Kullamannen by UTMB

Mallorca

Puglia by UTMB

Translantau™ by UTMB®

Patagonia BARILOCHE by UTMB

Ultra-Trail Kosciuszko by UTMB

HOKA Chiang Mai Thailand by UTMB®

Arc of Attrition by UTMB®

Tarawera Ultra-Trail by UTMB

Chianti Ultra Trail by UTMB

Valhöll Fin del Mundo by UTMB

Istria 100 by UTMB 

Desert RATS Trail Running Festival

The Canyons Endurance Runs™ by UTMB®

HOKA Ultra-Trail Australia by UTMB

Mountain Ultra Trail by UTMB

Puerto Vallarta by UTMB®

Quindio Trail Colombia by UTMB

Ultra-Trail Snowdonia by UTMB®

Ultra-Trail Great Wall by UTMB®

Trail Alsace Grand Est by UTMB

Amazean Jungle Thailand by UTMB

Grand Raid Ventoux by UTMB

Ultra-Trail Mount Yun by UTMB®

Tenerife Bluetrail by UTMB®

War Horse Ultra-Trail Xiamen by UTMB®

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64% Trail  |  30% Forest Road  |  6% Paved Road

With approximately 21,000’ of vertical gain that includes monster climbs and the solitude of single-track ridge running, the Grindstone 100-mile race is considered by many to be the most incredible ‘hundo’ east of the 100th meridian.

100M

Offering 11,000’ of vertical gain, adventure awaits as you experience some of the most scenic and challenging sections of the 100-mile course in this 100K version of Grindstone by UTMB.

100K

With just over 5000’ of climbing, the Grindstone 50k offers a challenging and scenic course combining gorgeous single track with some fire road running as you get a little taste of both 100k and 100-mile courses.

The Grindstone half marathon course throws a killer climb, a fun ridge run, and a bombing downhill at you, all while still offering a blazing fast start and finish for those interested in a little taste of everything!

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