ONE Championship: Dawn Of Heroes was a Combat sport event held by ONE Championship on August 2, 2019 at the Mall of Asia Arena in Pasay, Philippines.
The Flyweight Grand-Prix Semi-Finals bout between Danny Kingad and Kairat Akhmetov was expected for the ONE Championship: Dawn Of Heroes main card. On July 8, however, Akhmetov was forced to withdraw due to an injury. Reece McLaren was pulled from a planned preliminary card bout with Yuya Wakamatsu and faced Kingad in the Grand-Prix Semi-Finals bout. Wakamatsu instead faced the former ONE Flyweight World Champion Geje Eustaquio, who stepped in on short notice for this encounter.
Mauro Cerilli has been forced to withdraw from his scheduled fight against Arjan Bhullar due to undisclosed reasons. That forced the fight to be cancelled.
Martin Nguyen def. Koyomi Matsushima via TKO (R2, 4:40)
Eddie Alvarez def. Eduard Folayang via submission (rear-naked choke) (R1, 2:16)
Demetrious Johnson def. Tatsumitsu Wada via unanimous decision
Danny Kingad def. Reece McLaren via split decision
Yuya Wakamatsu def. Geje Eustaquio via knockout (R1, 1:59)
Dae Sung Park def. Honorio Banario via unanimous decision
Daichi Takenaka def. Leandro Issa via TKO (R3, 1:40)
James Nakashima def. Yushin Okami via unanimous decision
Xie Bin def. Edward Kelly via technical decision
Miao Li Tao def. Pongsiri Mitsatit via unanimous decision
Ayaka Miura def. Samara Santos via submission (americana) (R2, 0:39)
Muhammad Aiman def. Sunoto Peringkat via unanimous decision