[1] Anuwat Kaewsamrit was born as Apisak Rongpichai in Nakhon Sri Thammarat province in the south of Thailand on November 17, 1981.

[2] On October 31, 1998, when he was 17 years old, he had his first foreign bout against Hinari Fukatsu who was the current Japanese national champion of SNKA at flyweight in Japan.

On November 18, 1998, Anuwat knocked out Klangsuan Sasiprapa Gym in the 4th round and he won the Rajadamnern Stadium title at Mini flyweight (105 lb, 47.727 kg).

On May 6, 2005, Anuwat fought against Nopparat Keatkhamtorn who was the current champion of Lumpinee Stadium at Featherweight to unify the titles.

[4] In 2005, World Boxing Council (WBC) established new championships of Muay Thai and Anuwat was offered for its title.

[5] On June 26, in Montego Bay, Jamaica, Anuwat challenged Liam Harrison's WMC World Lightweight title, and won by TKO of the third round with right low kicks.

On July 11, 2010, in Ariake, Tokyo, Anuwat was scheduled to defend his WPMF Featherweight title against Shin Saenchigym from Japan.