TransJeju by UTMBJeju World Cup Stadium, South Korea🇰🇷
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- Date
- Oct 2 - 4, Fri - Sun · 21:00
- City
- Jeju World Cup Stadium, South Korea
TransJeju by UTMB is the largest ultra-distance trail event on Jeju, South Korea's volcanic island. Participants will run in Hallasan National Park (UNESCO World Heritage Site); the park is extremely diverse: at various altitudes, over 1,800 subtropical, temperate and subarctic plant species develop on top of Halla volcano (South Korea's highest mountain), it changes distinctly with the four seasons and offers runners continuously changing landscapes. Around the summit of the mountain…
Courses
| Course | Distance | Elevation Gain | Km-effort |
|---|---|---|---|
| 148K | 148 km | 5000 m D+ | 198 · XL |
| 104K | 104 km | 4000 m D+ | 144 · L |
| 60K | 60 km | 1400 m D+ | 74 · S |
| 20K | 20 km | 508 m D+ | 25 · XS |
Calculators for this race
Registration
- StandardWed, Mar 18, 2026Registration open
Data sources: UTMB World Series, official site (transjeju.utmb.world) · Last checked:
Data is compiled automatically and may change; check the official source before entering.
Tune-up races
Prep races you can run in the weeks before this one, ahead of your taper.
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Frequently asked questions
(6)
What is TransJeju by UTMB?
TransJeju by UTMB is the largest ultra-distance trail event on Jeju, South Korea's volcanic island. Participants will run in Hallasan National Park (UNESCO World Heritage Site); the park is extremely diverse: at various altitudes, over 1,800 subtropical, temperate and subarctic plant species develop on top of Halla volcano (South Korea's highest mountain), it changes distinctly with the four seasons and offers runners continuously changing landscapes. Around the summit of the mountain…
When is TransJeju by UTMB 2026?
TransJeju by UTMB takes place on Fri, Oct 2, 2026 - Sun, Oct 4, 2026. Start time: 21:00.
Where does TransJeju by UTMB take place?
TransJeju by UTMB takes place in Jeju World Cup Stadium, South Korea.
What are the courses and distances of TransJeju by UTMB 2026?
TransJeju by UTMB offers 4 courses: 148K (148 km, 5000 m D+); 104K (104 km, 4000 m D+); 60K (60 km, 1400 m D+); 20K (20 km, 508 m D+).
How hard is TransJeju by UTMB 2026?
Difficulty is measured in km-effort: distance plus ascent divided by 100. The 148K course covers 148 km with 5000 m of climbing, which is 198 km-effort and falls in ITRA category XL. All courses: 148K 198 km-effort (XL), 104K 144 km-effort (L), 60K 74 km-effort (S), 20K 25 km-effort (XS).
What is the official website of TransJeju by UTMB?
Official website: https://transjeju.utmb.world/