He also holds the distinction of being the only fighter to have defeated the legendary Saenchai in Muay Thai rules by knockout.

[1][2] Thongchai Pakthai was born on February 8, 1971 in Chakkarat, Nakhon Ratchasima, Thailand.

[4] In 1998, he received his first Fighter of the Year award from the Sports Authority of Thailand.

In 2001, Thongchai had gone 10-2, with notable wins over Bovy Sor.Udomson, Pornsanae Sitmonchai, Klairung Sor.Sasiprapa, and Sayannoi Kiatprapat.

Throughout the course of his long career, he has fought many great champions such as Saenchai, Anuwat Kaewsamrit, Samson Isaan, Amnat Ruenroeng, Bovy Sor.Udomson, Pornsanae Sitmonchai, Kaolan Kaovichit, Namsaknoi Yudthagarngamtorn, Panomrunglek Kiatmuu9, Orono Wor.Petchpun, Pakorn Sakyothin, Nungubon Sitlerchai, Wuttidet Lukprabat, Therdkiat Sitthepitak, Pairojnoi Sor Siamchai, Tukatatong Por.Pongsawang, Toto Por.Pongsawang, Kompayak Singmanee, Puja Sor.Suwanee, Nuengsiam Fairtex and more.