This event featured three title fights first a ONE Women's Atomweight Championship bout between the champion Angela Lee and top contender Mei Yamaguchi to serve as the event headliner,[3] secondly a bout for the inaugural ONE Muay Thai Flyweight Championship between Sam-A Kaiyanghadaogym and Sergio Wielzen as co-headliner and finally a bout for the ONE Featherweight Championship, Martin Nguyen makes the first defense of his title against top contender Christian Lee.

This event featured a two title fights first a ONE Flyweight Championship unification bout between two-time champion Adriano Moraes and interim champion Geje Eustaquio to serve as the event headliner, and a bout for the ONE Women's Strawweight Championship between Jingnan Xiong and Laura Balin as co-headliner.

ONE Warrior Series 2 was a mixed martial arts event held by ONE Championship on October 11, 2018 in Singapore.

The co-main event featured a Bantamweight bout between top contender Leandro Issa and Roman Alvarez.

This event featured a Superfight between top contender from Sweden Zebaztian Kadestam and Agilan Thani of Malaysia as ONE Championship: Pursuit of Power headliner.

The co-main event featured a Featherweight Muay Thai bout between top contender Jo Nattawut and Yohann Drai.

[6] The co-main event featured a Lightweight bout between top contender Shinya Aoki and Shannon Wiratchai.

This event featured a two title fights first a boxing match for the WBC Super Flyweight Boxing Championship between the champion Srisaket Sor Rungvisai and Iran Diaz to serve as the event headliner,[7] and a bout for the ONE Kickboxing Women's Atomweight Championship between Kai Ting Zhuang and Stamp Fairtex as co-headliner.

The co-main event featured the debut of former Glory Welterweight Champion Nieky Holzken in a catchweight bout against Cosmo Alexandre.

And a bout for the vacant ONE Lightweight Championship between the former champ Eduard Folayang and top contender Amir Khan as co-headliner.