ONE Fight Night 20: Todd vs. Phetjeeja was a combat sport event produced by ONE Championship that took place on March 9, 2024, at Lumpinee Boxing Stadium in Bangkok, Thailand.

This also the second all-female event fight card of this organization since ONE: Empower in September 2021.

[4] A ONE Women's Atomweight Muay Thai World Championship bout between current champion Allycia Rodrigues and Cristina Morales served as the co-main event.

[5] Multiple-time IBJJF World Champion Mayssa Bastos made her promotional debut against Kanae Yamada took place at the event.

Yu Yau Pui also missed hydration, with the bout continuing at a catchweight of 118.5 lbs.