Thailand's lone gold came from Ramnarong Sawekwiharee in the men's 54kg final, while Panipak Wongpattanakit took the silver in the women's 46kg class.
In the Muay contest, Pisal Iamsiri handed Thailand the gold medal by winning the men's 57kg event.
In the chess competition, Nakorn Trisa-ard captured a gold medal in the men's traditional individual standard, with team-mate Pairoj Suwan claiming bronze.