Amanda Serrano and other female boxers want the choice to be able to contest title fights over 12 rounds like their male counterparts.
Undisputed featherweight world champion Serrano, along with more than 20 current and former female boxers, said in a statement they also want to be able to fight three-minute rounds.
Women’s title fights are usually for no more than 10 two-minute rounds.
Britain’s two-weight world champion Natasha Jonas and retired fighter Laila Ali, daughter of the legendary Muhammad Ali, also gave their name to the statement.
Serrano’s unified title bout against Danila Ramos this month in Orlando is set to be fought across 12 rounds of three minutes each.
Most Valuable Promotions (MVP) said the move was supported by the WBO, WBA, and IBF.
