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The mother distance

100 MILES

It is considered by most ultratrail runners as the mother of all distances in this discipline. A unique challenge in Latin America, regarded as one of the most beautiful and demanding races in the world.

A challenge for experienced runners

START: FRIDAY, APRIL 9, 2027
Location: Regimiento de Caballería de Exploración de Montaña 4
Time: To be defined

The 100 miles require special preparation. Also, to participate in this distance at Patagonia Run, you must apply and meet certain requirements before you can register (You can see them in the “Frequently Asked Questions” section at the bottom of this page).

160.3 km
42 Hours
9221 m
High
100 Millas

ELEVATION PROFILE

COURSE BASED ON THE 2026 EDITION, MAY BE SUBJECT TO CHANGES FOR THE 2027 EDITION

DISCOVER THE DISTANCE

Fall in love with the race and get ready to experience it!

FREQUENTLY ASKED QUESTIONS

DISTANCE CHANGES

– Distance changes can be made after registration as long as there are available spots in the new selected distance and the registration has been fully paid.

– If the distance change is to a shorter distance, no refund will be issued for the difference between the original and the new distance.

– If the distance change is to a longer distance, the participant must pay the difference in registration fee between both distances, in addition to the applicable administrative fee based on the date of the request.

– Distance changes can be self-managed until March 28, 2027 through the runner profile.

– There is no administrative fee until January 31, 2027; from February 1 to March 28, 2027, an administrative fee will apply (amount to be determined).

WHAT DOES THE REGISTRATION INCLUDE?
  • Access to the chosen race: 10k, 21k, 42k, 70k, 110k, 100Mi
  • Technical race shirt
  • Race bib with Runner Number
  • Chip for time tracking and classification
  • Online technical briefing
  • Sponsor products
  • Complimentary photo
  • Ultra Trail Patagonia Run Expo
  • Food and hydration at aid stations
  • Medical assistance on course
  • Finisher medal for those who cross the finish line
  • Trophies for the winners
  • Pre-race, during, and post-race services
HOW DOES INSTALLMENT PAYMENT WORK?

ONLY FOR RUNNERS RESIDENT IN ARGENTINA.

Each MONTH the installment must be paid by accessing the runner’s profile.
✔️The system automatically creates installment due dates approximately every 30 days.
✔️ With the payment of the 1st installment, the registration fee value is frozen.
*Late fee interest of 1% per day. After 30 days of delay, the financing plan will be considered expired and payments made will be lost.
Payment methods in Argentina: only electronic means enabled on the Mercado Pago platform.
Payment by bank transfer or cash at the office is not available.
A 5.7% fee for the payment platform service will be added to the registration cost.

REQUIREMENTS TO PARTICIPATE IN THE 100 MILES

To participate in the 100Mi distance, one of the following three requirements must be certified. These will be evaluated by the Organizing Committee, which will determine the authorization for participation in this distance.

  1. Have at least 12 ITRA Points accumulated in a maximum of 3 races between 2024 and 2026, with at least 1 race being equal to or longer than 110 kilometers non-stop.

  2. Have finished any of the following races:
    1. 110k Patagonia Run 2024 or 2025 within the official classification time.
    2. 100Mi Patagonia Run 2024 or 2025

  3. Have finished between 2024 and 2026 another similar non-stop race to those mentioned in point 2), in distance and elevation, for which it will be necessary to provide proof of the times achieved by uploading the link to the race results in the pre-registration/application form for evaluation by the Organizing Committee.

QUALIFYING RACES

HARDROCK 100

Those who have been finishers of the Patagonia Run 100 Miles in 2025 or 2026 can enter their name in the drawing for the 2027 edition of Hardrock 100.

WESTERN STATES 100

Those who have been finishers of the Patagonia Run 100 Miles in 2026 can enter their name in the drawing for the 2027 edition of Western States 100.

ITRA INDEX

COMING SOON