The North Face 100 Gangwon

About the Event

The TNF100 Korea is a premier international trail running event held in the coastal and mountainous regions of Gangneung. Scheduled for Saturday, May 16, 2026, the race is part of the global North Face 100 series. The event starts and finishes at the Gangneung Gyeongpo Lake Square, offering a rigorous test of endurance across several distances.

Race Categories and Schedule

The event offers four distinct distances. Registration for the 50K and 100K races takes place on May 15, the day before the event.

Category	Start Time	Eligibility
100K Ultra	5:30 AM	18+ (Must have finished a 50km+ race in the last 2 years)
50K Ultra	8:30 AM	18+
22K Trail	10:00 AM	18+
10K Trail	11:00 AM	18+ (Under 18 requires guardian consent)

Geography and Venue

The race is staged in Gangneung, located on the east coast of South Korea. The terrain transitions from scenic lakefront paths to technical mountain trails.

Course Characteristics: The routes utilize the rugged mountain terrain of the Gangwon province, featuring significant elevation changes for the ultra distances.
Start/Finish: All races begin and end at the Gyeongpo Lake Square, a central hub for the event's festivities.
Weather Support: Gangneung in May typically offers moderate temperatures, though mountain sections can vary significantly in climate.

Participant Amenities

The North Face provides specific gear and recognition for finishers across all distances:

Souvenirs: Participation items are sent to runners in advance of the competition date.
Medals: All finishers in the 10K, 22K, 50K, and 100K categories receive a finisher medal.
Exclusive Gear: Additional finisher souvenirs are provided specifically for the 22K, 50K, and 100K distances.

Key Deadlines and Policies

Record Submission: 100K runners were required to submit their qualifying race records by March 30, 2026.
Refund Policy: Full refunds were only available for requests made before March 31, 2026.
On-site Distribution: For registrations after March 31, souvenirs are collected on-site rather than mailed.

3.1 mm

ac_unit Avg snowfall

—

air Avg wind speed

8.9 km/h (Light breeze)

opacity Sweat loss rate

Moderate

terrain Course conditions

Firm and slightly soft

sunny Max UV Index

High (6.0)

humidity_mid Humidity

66.6%

wb_twilight Sunrise

05:14

nightlight Sunset

19:26

About Gangneung

Learn more about the host city, Gangneung.

Gangneung (강릉,江陵) is the largest coastal city in Gangwon Province, third largest overall. Gangneung is nestled at the east side of South Korea's longest mountain range, Taebaek. The Taebaek Mountains stretch along the eastern edge of Korean Peninsula and run along the Sea of Japan.