Claim: On November 13, 2010, Pacquiao, who got his very first title WBC Flyweight on 12-04-1998 in his fight against Chatchai Sasakul of Thailand, won his eighth boxing championship by defeating David Díaz, who also holds a record of three welterweight world titles.
Evidence: Pacquiao captured the WBC and lineal flyweight titles (his first major boxing world title) over Chatchai Sasakul by way of knockout in the eighth round. On December 4, 1998, at the age of 19, he won his first major title, the World Boxing Council (WBC) flyweight title. Sasakul was an amateur boxing star in Thailand. On June 28, 2008, at the Mandalay Bay Resort and Casino in Las Vegas, Pacquiao moved to the lightweight division and claimed the WBC lightweight title, defeating David Díaz via knockout in round nine.