Nadaka Yoshinari (吉成 名高, Yoshinari Nadaka; born January 8, 2001) is a Japanese professional Muay Thai fighter and kickboxer and the current inaugural ONE Championship Atomweight Muay Thai world champion. He is a five division champion and has formerly held Lumpinee, Rajadamnern, Thailand (PAT), WMC, WPMF, WBC, and IBF titles. Known in Thailand as Nadaka Eiwa Sports Gym (Thai: นาดากะ เอวะสปอร์ตยิม) he made his professional debut aged 14 at Lumpinee Stadium. Nadaka is the only foreign fighter in history to become a three division Rajadamnern champion and just the second foreigner after Youssef Boughanem to win a title at both Lumpinee Stadium and Rajadamnern Stadium.
Source: “Nadaka Yoshinari”, English Wikipedia (CC BY-SA 4.0), excerpt