Asan Shinjeong Lake Ultra Marathon

3rd Asan Sinjeongho Trail Run 100k: A High-Endurance Challenge in Chungnam

The 3rd Asan Sinjeongho Trail Run 100k is scheduled for Saturday, April 18, 2026, at the Sinjeongho National Tourist Complex in Asan, South Korea. Organized by the Chungnam Branch of the Korea Ultramarathon Federation (KUMF), this event is a premier trail running experience that tests the limits of endurance through the rugged terrain of the Chungnam region. The race is a 100% trail course starting in the afternoon, requiring participants to navigate significant elevation and technical ridges under both daylight and nighttime conditions.

Course Highlights and Technical Demands

The route features iconic local peaks and landmarks, including Wolmungsan, Bonggoksa Temple, and Yaksuam. The 100 km distance presents a formidable challenge with nearly 3,900 meters of total vertical gain. Because the race starts at 2:00 PM, runners must be prepared for an overnight journey. Mandatory safety gear includes dual headlamps with spare batteries, a minimum hydration capacity of 1.5 liters, an emergency whistle, and a survival blanket. The organizers emphasize that participants should have their own navigation via GPX files, as the technical nature of the trail requires high self-sufficiency.

Registration and Communication

Official registration is open from January 5, 2026, to April 7, 2026, through the verified Korean race portal RoadRun. The official event hub is 아산신정호울트라.kr, where runners can find detailed race reports and announcements. It is important to note that the event does not maintain a dedicated Facebook page; instead, the Chungnam Ultra Marathon Federation uses the KUMF National Bulletin Board for all primary 2026 updates. Check-in begins at 11:00 AM on race day at the Yi Sun-sin Statue within the tourist complex.