RUN247 / Running News / Trail Running News / UTMB World Series announce TransJeju by UTMB in South Korea

UTMB World Series announce TransJeju by UTMB in South Korea

Patrick Ryan
Updated on
Endure 24
How Far Will You Go? UK's Biggest 24hr Trail Race

UTMB have announced that TransJeju by UTMB in South Korea will become the 32nd race on the UTMB World Series 2023 calendar

An island off the South coast of South Korea, Jeju sits in the Korean Strait and will now play host to the UTMB World Series event on October 7-8, 2023. 

There will be four races: 10km; 20km; 50km and 100km. There is no 100-mile race as with other UTMB World Series events. 

The announcement sees the established race Trail Jeju become the TransJeju by UTMB, with the city of Seogwipo hosting the start and finish of all races. 

Hallasan, a dormant volcano, is the highest peak in South Korea. Credit: UTMB.

“Very special” Jeju 

Jeju is a volcanic island, and runners will find themselves scaling the Hallasan Mountain, a dormant shield volcano and the highest peak in South Korea. It is also a UNESCO World Heritage Site. 

“One of the biggest draws of TransJeju by UTMB is that runners can reach the peak of the Hallasan Mountain, the highest mountain in South Korea,” race director Byeungsik Ahn said. 

“Runners in the 100km race climb the mountain when the sun sets, which is very special.

“Jeju is a very popular resort so we have great infrastructure, and it is easy to access, and we are sure participants and their families will enjoy the great local seafood and tourist attractions in Jeju before and after the race. 

“We are really happy and honored to be a part of UTMB World Series. I hope that more runners will come to enjoy TransJeju by UTMB on their way to the UTMB World Series Finals.  

“We would like that every trail runner’s dreams come true with TransJeju.” 

The new TransJeju by UTMB races 

With a cumulative elevation of 4020m, the flagship Trans100K will take runners through the routes of the Hallasan National Park to the top of Hallasan and the crater lake that lies at its peak. It offers three running stones for entry to the lottery for the UTMB finals at the Ultra-Trail Marathon du Mont-Blanc to all who complete it 

The Trans50K, which is 52km long, will take runners on a similar route to the peak and has a total of 2110m, offering two running stones, while the one running stone Trans20k offers a total elevation of 420m and takes runners to Gasiri village. The Trans10k does not offer any running stones. 

Details about entry to any of the races can be found here.

Patrick Ryan
Written by
Patrick Ryan
Patrick is a major contributor to TRI247 and RUN247. A keen hiker with wide experience in sports journalism, he has covered the Olympics and Commonwealth Games.


In episode 1 of our new SBRX Show we sit down with ultra runners and coaches Kim and Jayson Cavill to get their take on the Barkley Marathons and triathlon & trail running gear reviews, training tips and more

Latest Running News

Katie Schide wins Canyons Endurance Runs 2024 photo credit UTMB
Walmsley and Schide favourites as Western States line-ups are finalised
Gerda Steyn Comrades Marathon presentation 2024 photo credit Comrades Marathon
Record-breaker Gerda Steyn reveals ASTONISHING Comrades Marathon masterplan
Russ Cook completes his epic run across the entire length of Africa [Photo credit: The Snapshot People Ltd]
‘Hardest Geezer’ running to every England game at Euro 2024 – and calls it a “doddle”
Maude Mathys wins the Tenerife Bluetrail by UTMB 2024 photo credit UTMB
Maude Mathys surprises herself again with all-the-way win at Tenerife Bluetrail by UTMB
Comrades Marathon 2024 Piet Wiersma presentation photo credit Comrades Marathon
‘I’ve made a weakness into a strength’ says Comrades hero Piet Wiersma
trail running on your terms

Never miss out with our trail alerts & digest. Get a dose of adventure & inspiration with Boundless.

Invalid email address
The SBRX Group

Proudly elevating endurance sports through content, products & services

Share to...