Patagonia Run

Next Race

April 8, 2026

0

days to go

The Patagonia Run is South America's premier 100-mile ultramarathon and a UTMB World Series event, circling the breathtaking wilderness around San Martin de los Andes in the Argentine Andes. Runners traverse ancient Araucaria forests, cross Patagonian steppe, ford glacial streams, and climb volcanic ridgelines with views of the snow-capped Lanin volcano. The race combines extreme remoteness with dramatic Andean scenery in one of the world's most stunning trail settings.

UTMB World Series EventITRA 6 Endurance Points

Est.

2012

Distance

161km / 100mi

Course

Loop

Surface

Mountain Trail

Elev. Gain

6500m

Elev. Loss

6500m

Field Size

~800

When

April

Time Limit

42h

THE COURSE

Gain

+6500m

Loss

-6500m

MI 0

KM 0

San Martin de los Andes Start

The race launches from the charming lakeside town of San Martin de los Andes at the foot of the Andes. Runners head into the Lanin National Park on forest trails alongside the crystalline waters of Lake Lacar.

ELEV: 640ft

MI 25

KM 40

Lanin Volcano Viewpoint

The course climbs to high ridgelines offering jaw-dropping panoramic views of the snow-capped Lanin volcano (3,776m). The exposed volcanic terrain and scree fields demand careful footing as runners navigate above the treeline.

ELEV: 1800ft

MI 45

KM 72

Araucaria Forest

Deep in the heart of the course, runners pass through ancient forests of Araucaria araucana (monkey puzzle trees) — prehistoric conifers that have survived since the dinosaur era. The gnarled silhouettes against the Andean sky are hauntingly beautiful.

ELEV: 1400ft

MI 65

KM 105

Patagonian Steppe Crossing

The course descends from the forested mountains onto the open Patagonian steppe. Runners face exposed grasslands where the infamous Patagonian winds can reach gale force, creating one of the race's most mentally challenging sections.

ELEV: 900ft

MI 98

KM 158

Lake Lacar & Town Finish

The final stretch follows the shoreline of glacial Lake Lacar back into San Martin de los Andes. Exhausted runners are greeted by thousands of spectators lining the streets of this passionate trail-running town for an emotional finish.

ELEV: 640ft