List of races

Grindstone Trail Running Festival

Kullamannen by UTMB

Mallorca by UTMB® 

Ultra-Trail Shudao by UTMB®

Translantau™ by UTMB®

HOKA Pacific Trails California by UTMB

Patagonia BARILOCHE by UTMB

Ultra-Trail Kosciuszko by UTMB

HOKA Chiang Mai Thailand by UTMB®

Oman by UTMB®

Vietnam Highlands Trail by UTMB

Arc of Attrition by UTMB®

Tarawera Ultra-Trail by UTMB

Puerto Vallarta by UTMB®

Xtrail by UTMB®

Chianti Ultra Trail by UTMB

Jujuy Fuerza Sagrada by UTMB

Istria 100 by UTMB 

Desert RATS Trail Running Festival by UTMB

Tenerife Bluetrail by UTMB®

Hiroshima Ultra-Trail by UTMB®

The Canyons Endurance Runs™ by UTMB®

Grand Raid Ventoux by UTMB

Amazean Jungle Thailand by UTMB

Oh Meu Deus by UTMB

Trail Alsace by UTMB

HOKA Ultra-Trail Australia by UTMB

Eryri by UTMB®

Rothrock by UTMB

Mountain Ultra Trail by UTMB

Ultra Trail Chattanooga by UTMB

mozart 100 by UTMB

Trail 100 Andorra by UTMB

Trail of the Kings - Lake Toba by UTMB

Kagaspa Trail Endurance 100 by UTMB

Zugspitz Ultra Trail by UTMB

Trail du Saint Jacques by UTMB

La Sportiva Lavaredo Ultra Trail by UTMB

Torrencial Chile by UTMB

Ultra Trail Whistler by UTMB

Restonica Trail by UTMB

HOKA Val D'Aran by UTMB®

Trail Verbier St Bernard by UTMB

Eiger Ultra Trail by UTMB

Monte Rosa Walserwaeg by UTMB

Speedgoat Mountain Races by UTMB

Bucovina Ultra Rocks by UTMB

Quito Trail Ecuador by UTMB®

KAT100 by UTMB

Gauja Trail by UTMB

Malaysia Ultra-Trail by UTMB 

Wildstrubel by UTMB®

Kaçkar by UTMB

Snowbasin by UTMB

Julian Alps Trail Run by UTMB

Skyline Scotland by UTMB®

Paraty Brazil by UTMB

HOKA Kodiak Ultra Marathons by UTMB

Puglia by UTMB

Ultra-Trail Mount Yun by UTMB®

TransJeju by UTMB

Chihuahua by UTMB®

Nice Côte d'Azur by UTMB®

JD Ultra-Trail Great Wall by UTMB®

HOKA UTMB Mont-Blanc

Boréalys Mont-Tremblant by UTMB

Western States® 100-Mile Endurance Run

Ultra-Trail Mogan by UTMB®

2026 Warhorse Ultra-Trail Xiamen by UTMB®

Aonijie

Buff

Compressport

Rudy Project

Shokz

Vibram

Nirvana

Hoka

Naak

Suunto

Tudor

distance

elevationGain

startDate

categoryWorldSeries

runningStones

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!

global-NorthAmerica-1

global-NorthAmerica-2