Complete Results From ONE 173
- Featherweight Kickboxing World Championship Unification: Superbon defeated Masaaki Noiri via unanimous decision
- Flyweight MMA World Championship: Yuya “Little Piranha” Wakamatsu defeated Joshua “The Passion” Pacio via TKO at 0:54 of round two
- Atomweight Muay Thai World Championship: Nadaka defeated Numsurin Chor Ketwina via unanimous decision
- Lightweight MMA World Championship: Christian “The Warrior” Lee defeated Alibeg Rasulov via TKO at 2:32 of round two
- Flyweight Kickboxing: Takeru “Natural Born Krusher” Segawa defeated Denis “The Bosnian Menace” Puric via TKO at 2:49 of round two
- Featherweight Kickboxing: Marat Grigorian defeated Rukiya “Demolition Man” Anpo via unanimous decision
- Bantamweight Kickboxing: Yuki Yoza defeated “The Kicking Machine” Superlek via unanimous decision
- Featherweight Kickboxing: Nabil Anane defeated Hiromi Wajima via unanimous decision
- Atomweight Kickboxing: Kana “Krusher Queen” Morimoto defeated Stamp Fairtex via unanimous decision
- Lightweight MMA: Tye Ruotolo defeated Shozo Isojima via submission (rear-naked choke) at 2:26 of round one
- Middleweight Submission Grappling: Rafael Lovato Jr. defeated Giancarlo Bodoni via unanimous decision
- Bantamweight Muay Thai: Suakim Sor Jor Tongprajin defeated Jake “The One” Peacock via TKO at 0:26 of round three
- Heavyweight MMA: Shamil Erdogan defeated Ryugo Takeuchi via TKO at 2:20 of round one
- Lightweight MMA: Hiroyuki “Japanese Beast” Tetsuka defeated Shinya “Tobikan Judan” Aoki via TKO at 0:28 of round two
- Atomweight MMA: Chihiro Sawada defeated Itsuki “Android 18” Hirata via unanimous decision
- Bantamweight Kickboxing: Hiroki Akimoto defeated Wei Rui via unanimous decision
