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SATURDAY, FEBRUARY 20, 2027
05:30 AM

START

Plaza Penitentes

HOW TO GET THERE

FINISH LINE

Plaza Penitentes
HOW TO GET THERE

MAX ALTITUDE

3.450 MASL

COURSE

MAX TIME

12 HOURS AND A HALF

SEE CUT-OFFS

THE RACE

A high-altitude mountain marathon, and a next-level challenge. Connecting all the most iconic points of Aconcagua Ultra Trail, starting and finishing in Penitentes, and reaching the majestic Confluencia Base Camp inside Aconcagua Provincial Park.

Whether you’re preparing for your first Ultra or simply want to run a marathon at altitude, our 42K is an unforgettable experience.

RUNNER’S GUIDE

All the detailed and up-to-date information for the 42-kilometer distance can be found in the Runner’s Guide for this race.

DOWNLOAD 42K GUIDE

REGISTRATION OPEN

ARGENTINE REGISTRATION
INTERNATIONAL REGISTRATION
WHAT’S INCLUDED IN YOUR REGISTRATION
  • Access to the selected race distance (6k, 15k, 25k, 42k or 60k)
  • Race t-shirt
  • Tyvek bib number
  • Timing and classification chip
  • Online technical briefing
  • Complimentary race photo
  • Finisher medal
  • Trophies or medals for winners
  • Hydration and snacks at Aid Stations
  • Aconcagua Ultra Trail Expo
  • Medical assistance
  • Runner insurance
  • Pre-race, race, and post-race services
  • Products from our Sponsors
NOT INCLUDED
  • Entrance fee to the Aconcagua Provincial Park
  • Transfer service

CURRENT FEES

ARGENTINE RUNNERS
Registration

1 INSTALLMENT

$548.900,00

3 INSTALLMENTS

$197.500,00

6 INSTALLMENTS

$110.000,00

INTERNATIONAL RUNNERS
Registration

1 INSTALLMENT

U$D 350

Total amount corresponds to: 20% registration – 80% services

Argentine Runners: Prices expressed in Argentine Pesos. Payment methods in Argentina: electronic payment methods only, enabled through the Mercado Pago platform. Bank transfers or cash payments at the office are not available. A 5.7% service fee will be added to the registration cost for the use of the payment platform.

SEE THE FREQUENTLY ASKED QUESTIONS SECTION FOR MORE INFORMATION.

42K SCHEDULE

Relevant dates and times for this distance.

Wednesday, February 17, 2027

Check-in and Kit Pickup
Schedule: 10:00hs to 14:00hs and from 15:00hs to 19:00hs
Location: To be confirmed – Mendoza City.

Friday, February 20, 2026

Check-in and Kit Pickup
Schedules:
10:00hs to 12:30hs and from 14:00 to 19:00
Location: Penitentes – Plaza Penitentes – Location to be confirmed

Saturday, February 20, 2027

Bag Drop: 42K | Penitentes Plaza

Start
Time: 05:30 AM
Location: Penitentes Plaza

Finish
Location: Penitentes Plaza

FAQ

DISCOUNTS

*Discounts are NOT cumulative with each other or with any other promotions.

Mendoza Resident Discount*
Receive a 30% discount on the current registration fee. Please send an email to info@aconcaguaultratrail.com before registering.
Valid until October 31, 2026.
This discount cannot be applied after registration has been completed.

RUNNING TEAMS Discount*

If you are the coordinator of a Running Team – minimum of 10 members – contact us at info@aconcaguaultratrail.com to request the requirements and Running Team registration process, and to obtain the Discount Codes to be used during registration.

  • Running Teams: 15% discount.

  • Running Teams from Mendoza: 25% discount.

(!) Participants must request the code from their coach BEFORE completing the registration form.

This discount cannot be applied after registration has been completed.

I’M ALREADY REGISTERED — DO I HAVE TO PAY ANYTHING ELSE?

Remember that your race entry does not include the Aconcagua Provincial Park entrance fee, which must be paid separately.

Argentine runners: the park fee will automatically be added as an extra payment, including the payment platform fee.

International runners: the park fee is paid in cash during accreditation, in the currency required by the Aconcagua Provincial Park.

CAN I CHANGE MY DISTANCE?

Yes, you can change distances as long as there are available spots and your registration is fully paid.

  • If switching to a shorter distance, the price difference is not refunded.
  • If switching to a longer distance, the runner must pay the fee difference.

How do I request a distance change?

All distance changes must be requested exclusively by email at info@aconcaguaultratrail.com

CAN MY FAMILY / FRIENDS COME WATCH THE RACE?

Yes, absolutely. Just keep in mind that if the start line is in Horcones (inside the Aconcagua Provincial Park), they must pay the day-pass to enter the start area. The day-pass is purchased directly at Horcones, at the entrance to the Aconcagua Provincial Park.

Otherwise, they can see you from other points along the course outside the park. Check your course map here.