Mikaela Mayer

Mikaela Joslin Mayer is an American professional boxer who has held world championships in three weight classes. She has held the WBO female welterweight title since September 2024 and was previously unified female super-welterweight and super-featherweight champion. As an amateur, she won a bronze medal at the 2012 World Championships and competed for the U.S. at the 2016 Olympics.