Click this URL link to register:

  • Once the race is full, how does the waiting list work?
  • 1) Any spots given up will go to racers on the waiting list on a first come/first serve basis -
  • For the 100 mile it will be the first on the Elite/Open group and then to age group participants.
  • 2) We assume that if you are on the waiting list you would like a spot and if by chance you change your mind remove yourself from the waitlist or you will be charged.
  • 3) For the years that we sold out enough spots opened up and 90% of those on the wait list had an opportunity to race if they wanted to, so don't hesitate to sign up, your chances are favorable.

Colorado Search & Rescue Card is REQUIRED for all race participants!

  • San Miguel County Search & Rescue has asked that all racers have a Colorado S&R card. It is $3 for one year OR $12 for 5 years and has great benefits. You can purchase yours online today by visiting this website:


  • 100 Mile Men & Women
  • *Elite/Open $3000 ($1500 split between womens & mens groups) – 10 places deep. Trophies 5 places deep.
  • *Age groups and Single Speed have Trophies 5 places deep.
  • We will have medals for all finishers and a special commemorative “Telluride 100″ specific miners coins for all racers that finish under 13 hours. All registrants and volunteers get a limited edition race t-shirt.

50 Mile Women & Men all age groups - trophies 5 deep.

MANDITORY Pre-Race Meeting Notes

A link to pre-race meeting notes will be emailed to all participants on June 1st, 15th and July 1st.

Packet/Number Plate Pickup

Location: Gondola Plaza at 300 W. San Juan Ave. Telluride, Co 81435

Refund Policy

Full refunds until June 15th 2023.

Race Proceeds will Benefit Awesome Non-Profit Groups

Donations on behalf of the race in previous years have been given to San Miguel County Search & Rescue and Telluride Mountain Club.

Race Rules

Please see NUE rules:

We also follow USAC rules of racing - USAC Rulebook: Please note that Chapters 1 & 5 are what are most relevant to Marathon Mtn. Biking: