Amanda Serrano becomes the first boxer in the history of professional women's boxing, to win world titles in six weight classes.

Amanda Serrano becomes the first boxer in the history of professional women's boxing, to win world titles in six weight classes.

The Puerto Rican Amanda Serrano won by unanimous decision to Argentina Yamila Reynoso and is the new super lightweight monarch, World Boxing Organization (WBO) version, which was vacant.

The Puerto Rican, Amanda Serrano, won the super lightweight title of the WBO and incidentally enters a select group with Manny Pacquiao in 8 and Oscar de la Hoya in 6.

Serrano won world titles at 118, 122, 126, 130, 135 pounds and now adds to his record, the world title of 140 pounds of the WBO.