Seoul 100K

The Seoul 100K Ultra Trail Race is a one-of-a-kind international competition that highlights the captivating juxtaposition of nature and urban life within Seoul. This bustling metropolis, home to ten million people, hosts this unique event where runners can explore its diverse landscapes from towering mountains to lively city streets.
Starting in Bukhansan National Park, participants will immerse themselves in lush greenery and scenic trails that wind through the park's rugged terrain. The route then leads into Dobongsan Mountain, offering breathtaking vistas of Seoul’s skyline as you ascend towards the summit. As runners navigate back down from these elevated points, they enter a dynamic section around the city perimeter, where winding roads and bustling neighborhoods provide an energetic backdrop.
The course also includes stretches alongside the iconic Han River, allowing participants to run along its banks while enjoying panoramic views of both natural beauty and urban development. Throughout the race, competitors will pass by numerous historical landmarks that tell the story of Seoul’s rich cultural heritage, blending past with present in a seamless journey through time.
With an elevation gain totaling over 4000 meters, the Seoul 100K challenges even the most seasoned ultramarathon runners while rewarding them with unparalleled views and experiences. This race is not just about covering distance; it's about discovering how nature and city life can coexist in perfect harmony within one of Asia’s largest cities.
The event promises an unforgettable adventure for trail running enthusiasts, combining physical endurance with the cultural richness of Seoul.