Petchtanong Petchfergus (; born November 6, 1985) is a Thai Muay Thai kickboxer fighting out of Bangkok. He is currently signed to ONE Championship, where he is the reigning ONE Bantamweight Kickboxing World Champion. As of February 2021, he is the #7 ranked super featherweight according to Combat Press. He was ranked a top ten featherweight in the world by Combat Press between February 2019 and September 2020. He was dropped from the rankings in October 2020. Biography Petchtanong started training in Muay Thai at 7 years old in a small camp close to his home. He quickly went to the live at the camp full time to escape an abusive familial situation. At 12, he moved to Bangkok following his mom. There he joined the Sit.Or gym through his uncle which took him to a level high enough to headline shows at Rajadamnern and Lumpinee stadiums at the age of 14. After changing gyms multiple times, Petchtanong was later sponsored by the Banchamek gym and went living, teaching and fighting in Australia for 2 years. He came back to Thailand in 2015 and went on a winning streak in the Super Muay Thai promotion. He received calls to participate in various kickboxing world tournaments in China, prominently Kunlun Fight and Wu Lin Feng. On January 19, 2019, he won the Wu Lin Feng World Cup final, defeating Jomthong Chuwattana. Petchtanong participated in the 2020 Wu Lin Feng 67 tournament. He won the semifinal bout against Liu Yaning by KO, but lost a unanimous decision to Jia Aoqi in the finals. ONE Championship On August 18, 2020, Petchtanong signed with ONE Championship. In his debut at ONE Championship: A New Breed 3 on September 18, 2020, Petchtanong lost by knockout to Capitan Petchyindee Academy just 6 seconds into the first round, setting a new record for fastest knockout in ONE Super Series history. Petchtanong made his sophomore appearance in the promotion against Zhang Chenglong at ONE Championship: Revolution on September 24, 2021. He won the bout via unanimous decision. Petchtanong was scheduled to face Hiroki Akimoto for the ONE Bantamweight Kickboxing World Championship at ONE 163 on November 18, 2022. He won the fight by split decision. Championship and achievements ONE Championship ONE Bantamweight Kickboxing World Championship (One time, current) Wu Lin Feng (WLF) 2019 Wu Lin Feng World Cup -67 kg Runner-up 2018 Wu Lin Feng World Cup -67