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.
