Considered one of the best defenders in the Southeast Asia region in history, he is renowned for his versatility, technical skills and ability to contribute effectively in both defensive and offensive roles on the field which he frequently takes set pieces scoring from a free kick and corners.

Theerathon is a major part of Buriram United's success; his free kicks assisted and scored many goals for the club.

His free kick against FC Seoul in the 2013 AFC Champions League qualified Buriram to the knockout phase as groups runners-up drawing with Urawa Reds Diamonds at 10 points..

In the 2013 Thai Premier League Theerathon scored 3 goals against BEC Tero Sasana, Chonburi, and Ratchaburi Mitr Phol.

[17] Theerathon played against Saudi Arabia in the 2014 FIFA World Cup qualification and received a red card in the 90th minute.

His form in the 2012 AFF Suzuki Cup is very impressive combined with Anucha Kitpongsri who played on the left side of the field.

Although not known to have a fast pace, and his positioning has sometimes been questionable, he possesses a powerful left foot; in which besides his defensive prowess, he is noted for his offensive capabilities and ability to read the game, where he has gained a reputation carrying the ball upfront in attacking plays and supplies his team with passes.