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Introduction

Borneo TMBT Ultra Trail is one of Asia’s true classics and stays loyal to its traditional courses of 100K and 50K and is a genuine test of physical and mental strength through the mountainous rainforest of Sabah on Borneo. 

The TMBT is Malaysia's oldest Ultra-Trail® Marathon with the inaugural race held in 2011. The acronym stands for "The Most Beautiful Thing", and makes reference to the iconic Mount Kinabalu, which at 4,100 m is one of Southeast Asia's highest peaks and a world heritage site. The TMBT course is set over the ridges and in the river valleys around the base of Mt. Kinabalu, with the highest elevation on the race course just under 2000m.

The event takes runners from the quaint native villages at the foothills on the western side of Mount Kinabalu towards the southern side of the mountain. The 100k category continues around the base of Mount Kinabalu and to the South-Eastern ridges of the mountain to finish in the village of Kundasang.

The routes are challenging but beautiful and give runners an opportunity to experience remote villages and follow village trails through a varied landscape of forest and cultivated areas. Trails pass paddy fields and climb steep ridges clad in pineapples with amazing views to Mt. Kinabalu and over the surrounding ridges and valleys which are often shrouded in clouds. The routes cross numerous streams with refreshing water on a hot day, while most larger rivers are crossed via hanging, bamboo or log bridges. Part of the trails follow the old heritage trails that used to be a part of the old buffalo trading routes linking villagers from Kota Belud to Bundu Tuhan.

The race has a reputation for being challenging to complete with a combination of steep terrain and technical trail sections, and the weather, usually hot in the first part of the day and with a good chance of tropical showers in the afternoon, often add to the challenge. 

Event website

Check the official event website for details and fine print

International gateway

Kota Kinabalu is the city where most runners will stay and also the capital city of Sabah. There’s a few international connections, but most will need to transit in Kuala Lumpur.

Accommodation options are plenty in the city, and an event shuttle bus will pick you up to get to the race start venue.

100K course map and profile

The final 2019 course is still to be confirmed but is planned to be very similar to the 2018 edition. Minor modifications include a return to the "iconic" trail sections such as the Pineapple Ridge and Bukit Dallas, however. The total distance and elevation gains are expected to remain largely unchanged. 

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2017 video summary

MAP