He was a two-time Lumpinee Stadium Super Bantamweight Champion, as well as the 1993 Sports Authority of Thailand Fighter of the Year, who was famous during the 1990s.

Chatchai was an orthodox Muay Femur stylist meaning that he would move backwards in order to make his opponents come forward into his unpredictable strikes or so he could defend and counter.

While Chatchai had a well-rounded skillset,[3] he was specifically renowned for his ability to throw head kicks from both legs resulting in KO victories or knockdowns against elite fighters like Mathee Jadeepitak or Hansek Prasanthinpanomrung.

At 19-years-old, Chatchai reached the peak of his Muay Thai career in 1993 after he finished the year with a record of 7 wins in 10 bouts including the aforementioned title fights.

[3] Chatchai would KO Mathee Jadeepitak with his signature head kick at 123 lbs, which also marked the last time in his career that he would fight in or near junior featherweight.