He later trained at Dejrath gym under Surat Sianglor, former trainer of Payao Poontarat, a bronze medalist at the 1976 Summer Olympics and WBC super flyweight world champion.
Three of his favorite techniques were severe low kick to the opponent's ankle, cross punches and elbow strike at close range.
[2] He had an opportunity to try professional boxing in 1995, facing Nungubon Sitlerchai, a fellow Muay Thai practitioner.
[3] There are three Muay Thai kickboxers that he admires; Nongkhai Sor.Prapatsorn, Ghairung Lookchaomaesaitong and Saenchai Sor.
His eldest and second sons, Phetchartchai Chaorai-Oi and Yod Chartchai, are both former Muay Thai kickboxers.