List of races

Grindstone Trail Running Festival

Istria 100 by UTMB

Desert Rats Trail Running Festival

Ultra Trail Ninghai by UTMB

Canyons Endurance Runs by UTMB

Transvulcania by UTMB®

Ultra Trail Australia by UTMB®

Ultra-Trail Snowdonia by UTMB®

Valhöll Argentina by UTMB

Trail Alsace Grand Est by UTMB

Mountain Ultra Trail by UTMB

Trail du Saint Jacques by UTMB

mozart 100 by UTMB

Sportiva Lavaredo Ultra Trail by UTMB

Trail 100 Andorra by UTMB

Western States® 100-Mile Endurance Run

Val D'Aran by UTMB®

Restonica Trail by UTMB®

Trail Verbier St Bernard by UTMB

Eiger Ultra Trail by UTMB

Speedgoat Mountain Races

KAT100 by UTMB

UTMB Mont-Blanc

Julian Alps Trail Run by UTMB®

Wildstrubel by UTMB®

Paraty Brazil by UTMB

Nice Côte d'Azur by UTMB®

TransJeju by UTMB

Puerto Vallarta by UTMB®

Kullamannen by UTMB®

Translantau by UTMB®

Doi Inthanon Thailand by UTMB®

Amazean Jungle Thailand by UTMB

Tarawera™ Ultramarathon by UTMB®

Ultra-Trail Kosciuszko by UTMB®

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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

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!