Borneo TMBT Ultra opens for registration
The 14th edition of Borneo TMBT Ultra Trail Marathon in Sabah is now open for registration. The 2026 edition keeps its end of August slot on the calendar, and once again features 100km and 50km qualifier races for the ATM Championship. Obviously, the 100km is also valid for the Grandmaster Quest.
TMBT is Malaysia's oldest long ultra in Malaysia 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 course is considered one of the most beautiful of the season and has plenty of incredible views on Kinabalu and the surrounding areas. A true trail classic, and also the host venue of an incredible Championship Final back in 2024.
While a few changes are expected for this year’s edition, the event takes runners from the native villages at the foothills on the western side of Mount Kinabalu towards the southern side of the mountain with 50k category finishing at the viewpoint to Mt. Kinabalu at the township of Pekan Nabalu. The 109k category continues around the base of Mount Kinabalu and to the South-Eastern ridges of the mountain to finish in the village of Kundasang.
While TMBT may not be the hardest trail race of our series, it is also very often underestimated. The race has a combination of runable bits, 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. In other words, come prepared and pay attention to the mandatory gear list for this race.
Last year, Hisashi Kitamura finally got his victory at TMBT, after four consecutive second places. One would think the Japanese “Karate Kit” finally had enough of the race, but in fact he has added it again to his race schedule! Will home hero Milton Amat, or who knows Daved Simpat, take revenge this season?
TMBT is rather easy logistics-wise. Just fly into Kota KInabalu and take a rest at one of the many comfortable yet cheap hotels or guesthouses in the city, before the race shuttle bus at 3 am. All details can be found on the website below.
Hisashi Kitamura finally won TMBT last year, ahead of Milton Amat, in his fifth attempt
