54
Days Away
OMR Ultra LLC is a race organization based in Mint Hill, NC that hosts ultra and running events including the Naked Mountain Ultra, Holiday Hundred, and Zelda 4 Hour, and also provides race timing services.
Race Day
Oct 30, 2026
Registration opens, price changes, race updates: straight to your inbox.
Build your aid station plan, organize your crew, and dial in your nutrition strategy. Everything you need to finish strong.
Make Race PlanAre you the race director for OMR Ultra 24 Hour Challenge?
Claim this race to manage registration, volunteers, and race-day ops on Endurance HQ.
