Muay Thai runs in Attachai's family and his cousin, Chaiya Sor Supawan, was also a champion in Lumpinee Boxing Stadium.

Attachai fought his way up to the highest levels in the Rajadamnern and Lumpinee stadiums and fought many of the greatest Muay Thai fighters of his era including Saen Chai Sor Kingstar aka Saenchai PKSaenchai Gym,[9] Samkor Kiatmontep,[10] Khunpinit Kiattawan,[11] Anuwat Kaewsamrit,[12] Namsaknoi Yudthagarngamtorn,[13] Lamnanoon Sor Sumalee,[14] Chalermpon,[15] Therdkiet,[16] Kongpipop, Nopparat, Sakedpetch and Petmunkonk.

[17] When Attachai was 26 years old, he was bought over by the world-famous Fairtex camp to make his return to fighting in Muay Thai.

Attachai represented Fairtex and won numerous fights in France,[19] United States of America[20] and Japan.

[1] In 2015, Attachai left joined Trifecta Mixed Martial Arts as their Muay Thai instructor[24] and led their competition team.