Petchdam Petchyindee Academy made his ONE Super Series debut on July 18, 2018 at ONE Championship: Pursuit of Power, where he knocked out Australian Josh Tonna in the 2nd round.
[2] Petchdam would continue his run of dominance in ONE Super Series in 2019 when he faced Masahide Kudo at ONE Championship: Call to Greatness on February 22.
[4] In his first title defense at ONE Championship: Dreams of Gold on August 16, 2019, Petchdam Petchyindee Academy would face Dutch-Moroccan kickboxer Ilias Ennahachi.
In the third round, a left hook from Ennahachi sent him down for a second time and Petchdam ultimately lost the fight and the title via 3rd-round knockout.
In his first fight since losing the ONE Kickboxing Flyweight World Title, Petchdam will face Kohei "Momotaro" Kodera at ONE Championship: Fire & Fury on January 31, 2020.