He won the WBA World Flyweight Title on April 5, 1970 against Bernabe Villacampo in a fifteen round split decision at Bangkok, Thailand.
[2] Chartvanchai became the third Thai in history to hold a version of the World Flyweight Title (The first one is Pone Kingpetch, the second is a Chartchai Chionoi).
[1] Chartvanchai was born in Thai Chinese family on October 25, 1944 in Phra Nakhon District near Memorial Bridge, Bangkok, Thailand.
[1] He began competitive professional boxing in early 1966, and in his first twenty-seven bouts through January 1970, he won twenty-four with the remaining three as draws.
Chartvanchai took the WBA World Flyweight Title on April 5, 1970 against Bernabe Villacampo in a fifteen round split decision at Charusathian Stadium,[1] Bangkok, Thailand.
He had trouble making the weight limit, even after doing light exercise and taking a steam bath, which may have weakened him for the bout.