He was born in Chonburi province, eastern Thailand and has a relative of Rambaa Somdet, a famous Thai mixed martial artist. They both trained Muay Thai together since childhood including another relative. Which later these three became prominent and successful Muay Thai kickboxers. For Yokthai, he became a famous Muay Thai kickboxer under Songchai Rattanasuban's stable. He has the strength of a strong fist, he often defeated the contender often by knocked out with a fist. He received the nickname from Muay Thai fans "ไอ้หมัดไซโคลนนรก" Because his fists were effective. He was backed by his promoter Songchai, to turn to professional boxing career in 1994 along with Pichit Chor Siriwat in junior flyweightdivision by Cuba's Ismael Salas is a trainer. He made four wins and was won vacant PABA super flyweight with a Russianboxer and defeated the title once, including five consecutive wins. On August 24, 1996 he challenge the WBA super flyweight world champion with Venezuelan title holder Alimi Goitia at Kamphaengphet Provincial Stadium, Kamphaeng Phet province, he won with TKO in the eighth round. He became the second Thai who capture WBA super flyweight world title after the legendary Khaosai Galaxy. He can defend his title at all four times by defeating the famous boxer, such as Aquiles Guzmán and Jesús Kiki Rojas, later he traveled to Japan he lost the title to Satoshi Iida a Japanese boxer who is the old rival has been draw in the past, by unanimous decision at Aichi Prefectural Gymnasium, Nagoya on December 23, 1997. He returned challenge world title again on April 23, 2000 with the new title holder Hideki Todaka at Rainbow Hall, Nagoya. The result was that he was defeated by TKO in 11th round. He continued to fight several times but not successful. He retired from professional boxing in mid-2004. After retired several years later. Yokthai has traveled to Japan as a Muay Thai trainer at Sendai, MiyagiPrefecture by having their own Muay Thai gym. He married with a Japanese woman who used to be a fighter in the MMA and he battled in MMA in 2010. He is defeated and never fight again until now.
