The Order of Merit was based on prize money won during the season, calculated in U.S. dollars.[2] The top seven players on the Order of Merit earned status to play on the 2019 Asian Tour.[3][4]
^The number in brackets after each winner's name is the number of Asian Development Tour events they had won up to and including that tournament. It is rare for someone to accumulate many wins on the Asian Development Tour as success at this level usually leads to promotion to the Asian Tour.
^"Order of Merit boost for 2018 Asian Development Tour season". Asian Tour. 9 July 2018. Retrieved 28 August 2023. The Asian Development Tour (ADT) is set to enter an exciting development in the second half of the 2018 season as it will now reward the top seven players on the final Order of Merit with playing rights on the Asian Tour in 2019.
^"Mizuno Declared Winner of PGM Maybank ADT Championship". GolfRPM. 1 December 2018. Retrieved 28 August 2023. The race to finish inside the top-seven place on the money list also concluded with Carballo, Nitithorn Thippong, Varanyu Rattanaphiboonkij, Han Lee, Janne Kaske, Mathiam Keyser and Mizuno earning their Asian Tour cards for next season.