“ONE Lumpinee” ONE Championship (ONE) , the world’s largest martial arts organization be the partnership open a new chapter of Muay Thai history with “ONE Lumpinee” weekly live events at the iconic Lumpinee Boxing Stadium in every Friday night. ONE Lumpinee will feature the best local and international martial artists competing in ONE’s Muay Thai, kickboxing, and mixed martial arts divisions under ONE’s Global Rule Sets. Chatri Sityodtong, Chairman and CEO of ONE Championship, stated: “ONE Lumpinee will be a landmark partnership between ONE Championship and the Royal Thai Army that will unite and ignite the Muay Thai and martial arts ecosystem in Thailand like never before.