High Lonesome 100

Mount Princeton (Buena Vista/Nathrop), CO · 100 mi

Lottery window

Dates TBD

Requires a qualifying finish; applications open for roughly one week in late December/early January, with a live, randomized (dice-seeded) drawing streamed publicly in mid-January, tickets weighted by past unsuccessful applications, finish history, and trail-work hours

Verified July 2026: official runsignup/highlonesome100.com pages confirm a genuine randomized drawing (dice-seeded random number generator, live-streamed) with weighted tickets. The 2026 cycle ran Dec 26-Jan 2 application window with a Jan 10 draw; exact 2027 dates not yet published, so timing is estimated from the recurring annual pattern.

Estimated — verify before relying on it

Key info

Official website

100 miles

Lottery with qualifier

A rugged 100-mile trail race through Colorado's Sawatch and Mosquito ranges near Buena Vista, with over 25,000 feet of elevation gain.

My status

Must have finished a 50-mile/100K trail race (prior calendar year) or a 100+ mile trail race within the prior ~3 years, or reached a specified checkpoint at a prior High Lonesome 100, or finished the Sawatch 50/50.

Go to official application page

Race Agent is an independent, unofficial tracker and is not affiliated with High Lonesome 100 or its organizers. Lottery dates change without notice — always verify on the official race site before relying on this information.