Seoul 100K

Seoul 100K

Sep 19, 2026Seoul, South Korea

External Event

Distance

62.1 mi

Pace

All paces (for 100K, advanced training recommended)

Terrain

Trail

Difficulty

Challenging

About this run

The Seoul 100K is an ultra-endurance event set to take place in Seoul, South Korea, on September 19, 2026. This challenging 100-kilometer race offers participants a significant test of their physical and mental fortitude. The event is designed for experienced runners seeking a substantial distance challenge. The 100K distance requires dedicated training and a strategic approach to racing. Further details regarding the specific course, start times, and any other event-specific information can be found on the official registration page.

Who it's for

This 100K event is suited for experienced ultra-marathoners and endurance athletes who are comfortable with long distances and have a proven training regimen for such challenges.

What to expect

  • Arrive at the start location well in advance of the official start time to allow for parking, gear checks, and any pre-race preparations.
  • The 100K distance is a significant undertaking; plan your nutrition and hydration strategy carefully throughout the race.
  • Pacing is crucial for a 100K. Consider a conservative start and adjust your pace as the race progresses.
  • The course is described as a trail event, so expect varied terrain that may include technical sections, ascents, and descents.
  • Given the date in September, check the weather forecast closer to the event and prepare for potentially warm or humid conditions, along with any rain.
  • Ensure you have appropriate trail running gear, including supportive shoes, hydration pack, and any safety equipment recommended for long-distance trail races.

Good to know

  • The event takes place in Seoul, South Korea.
  • Packet pickup details, if applicable, will be available on the official registration page.
  • Runners should consult the official registration page for the most up-to-date information on the course and event logistics.

Typical conditions

For events around September 2026 in Seoul, South Korea: Typical autumn conditions in this region — conditions can change quickly; confirm race-day guidance on the official page.

How to prepare

Trail events reward time on uneven surfaces and hills. Practice footing and bring the shoes and hydration the organizer recommends — details vary by race.

Find races near you

Getting there

This event is listed in Seoul, South Korea. Confirm the exact start venue, parking, and transit options on the official registration page.

Frequently asked questions

What is the distance of the Seoul 100K?+

The Seoul 100K is a 100-kilometer race.

Where does the Seoul 100K take place?+

The event is held in Seoul, South Korea.

When is the Seoul 100K?+

The race is scheduled for Saturday, September 19, 2026.

What type of course is the Seoul 100K?+

The event is a trail race.

How do I register for the Seoul 100K?+

Registration can be completed through the official registration page: https://worldsmarathons.com/marathon/seoul-100k/register?ref=Wo2X9tu

Are there other distances available?+

The event also offers 50K and 10K trail options.

Where can I find more detailed information about the course?+

Runners should check the official registration page for detailed course information and event specifics.

What are the start times for the event?+

Specific start times for each distance will be available on the official registration page.

External Event
Register

Registration is handled by the official event organizer

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