2,000 runners to tackle Seoul's mountains, streets in 2026 Seoul100K
Seoul will turn its mountains, fortress walls, riverfront and downtown streets into a single endurance course this weekend as 2,000 runners from Korea and abroad take part in the 2026 Seoul International Ultra Trail Running Race, known as Seoul100K. The seventh edition of Seoul 100K runs Saturday and Sunday, with 170 international participants from 36 countries joining professional athletes,…
In 2026, Seoul will host the Seoul100K, an endurance event that transforms the city's mountains, walls, riverfront, and downtown streets into a single trail running course. The seventh edition of the race, which will encompass 100K, 50K, and 20K events, will see 2,000 runners from Korea and around the world participate. International competitors will include 170 athletes from 36 countries who will join local residents and professional runners in the race.
The 100K and 50K races will commence at 5 a.m. on Saturday from Gwanghwamun Square, while the 20K race will begin at 7:30 a.m. on Saturday. The route will take runners through destinations such as Mount Inwang, Mount Bukhan, the Han River, and Cheonggye Stream. The organizers have promoted the event as an urban trail-running experience that merges Seoul's natural beauty with its historical and modern urban landscape.
The 100K course is designed to be completed within 31 hours, and notable participants from abroad include Sweden's Petter Engdahl, Switzerland's Jasmin Nunige, Germany's Marcel Höche, Norway's Nora Serres, Britain's Holly Page, and American Step.
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- 2,000 runners to tackle Seoul's mountains, streets in 2026 Seoul100K koreatimes.co.kr
