ONE Friday Fights 121: Tengnueng vs. Bakhtin was a combat sports event produced by ONE Championship that took place on August 22, 2025, at Lumpinee Boxing Stadium in Bangkok, Thailand. A lightweight Muay Thai bout between Tengnueng Fairtex and Maksim Bakhtin was headlined the event.

ONE Friday Fights 146: Detchawalit vs. Dotsenko was a combat sports event produced by ONE Championship that took place on March 13, 2026, at Lumpinee Boxing Stadium in Bangkok, Thailand. A bantamweight Muay Thai bout between Detchawalit Silkmuaythai and Denis Dotsenko was headlined the event.