ONE Fight Night 13: Allazov vs. Grigorian was a combat sport event produced by ONE Championship that took place on August 5, 2023, at Lumpinee Boxing Stadium in Bangkok, Thailand. A ONE Featherweight Kickboxing World Championship bout between current champion Chingiz Allazov and former Glory Lightweight champion Marat Grigorian headlined the event. The pair met for the first time at Glory 7: Milan in 2013, but the fight ended in a no-contest due to an illegal elbow. Their second meeting took place in Levallois-Perret, France in 2014, where Grigorian won by unanimous decision.
Chingiz Allazov
Marat Grigorian
Mikey Musumeci
Jarred Brooks
Tawanchai P.K. Saenchai
Davit Kiria
John Lineker
Kim Jae Woong
Supergirl Jaroonsak
Lara Fernandez
Oumar Kane
Marcus Almeida
Elias Mahmoudi
Edgar Tabares
Tye Ruotolo
Saygid Guseyn Arslanaliev
Rungrawee Sitsongpeenong
Nauzet Trujillo
Enkh-Orgil Baatarkhuu
Jhanlo Mark Sangiao