Transjeju by UTMB
· starts 7:00 AM
Seogwipo, Jeju, South Korea
Transjeju by UTMB is a trail race of 66 miles (107 km) in Seogwipo, Jeju, South Korea. The next edition is in October 2027; its day hasn't been announced. The race gives its climbing as 13,123 ft (4,000 m); measured from its course file, it's 13,944 ft (4,250 m). It starts at 263 ft (80 m) above sea level. Its high point is 6,295 ft (1,919 m). The course finishes where it starts. It's a UTMB World Series Event, whose top three men and women go straight to the UTMB Finals and a Western States 100 qualifier. Finishers earn 3 UTMB Running Stones toward the UTMB lottery. Registration is open to all; registration opened on March 3, 2026. The field is about 400 runners.
No other upcoming 50-mile and 100K races in South Korea are listed. Transjeju by UTMB climbs about 197 ft a mile (37 m per km), flatter than 65% of the 119 50-mile and 100K races listed with their climbing.
The course
Questions about Transjeju by UTMB
When is Transjeju by UTMB 2027?
Transjeju by UTMB 2027 is in October 2027; its day hasn't been announced yet.
Where is Transjeju by UTMB?
Transjeju by UTMB is held in Seogwipo, Jeju, South Korea.
How long is Transjeju by UTMB?
Transjeju by UTMB is 66 miles (107 km); its course file measures 64 miles.
How much elevation gain does Transjeju by UTMB have?
Transjeju by UTMB has 13,123 ft (4,000 m) of elevation gain, as the race states it.
Is Transjeju by UTMB a Western States qualifier?
Yes. Transjeju by UTMB is on the Western States 100's list of qualifying races. Check wser.org for the qualifying standard and years.
How do you get into Transjeju by UTMB?
Transjeju by UTMB has open registration. Registration opened on March 3, 2026.
What is the weather usually like at Transjeju by UTMB?
Around Transjeju by UTMB's date, the day's high is typically about 77°F (25°C) and the low about 65°F (18°C), averaged over recent years.
Where can I see the Transjeju by UTMB elevation profile and aid station cutoffs?
runfarwhere has Transjeju by UTMB's course file. The outline, distance and climbing are free on its page; the elevation profile, aid stations with cutoffs and the GPX file are part of runfarwhere Premium.
How hilly is Transjeju by UTMB?
Transjeju by UTMB climbs about 197 ft a mile (37 m per km), flatter than 65% of the 119 50-mile and 100K races listed with their climbing.
Other races in South Korea
- Seoul Marathon Marathon · Mar 21, 2027
- Transjeju by UTMB - Jeju100M 148K · Oct 2027, TBD
- Transjeju by UTMB - Jeju20K 20K · Oct 2027, TBD
- Transjeju by UTMB - Jeju60K 60K · Oct 2027, TBD
- Ulju Trail Nine Peaks 128K · Oct 2027, TBD
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