Asia Trail Master (ATMs) is an annual series of trail running races, which are open for participation to the general public and take place on the Asian continent. The Asia Trail Master series has been designed and is managed by Kuai Sports Promotions Ltd in Hong Kong, which also owns the brand name.
Runners score points in each ATMs race that they finish and in so doing receive a place in the ATMs Ranking. After the final event on the annual ATMs calendar, the runner who has scored the most points will be crowned as that year's Asia Trail Master champion: overall, per gender and as of 2016 per age group. In addition, persistent endurance runners can aim to claim the honoury title of Grandmaster by finishing 6 long distance (+70km) races within 2 calendar years.