Amanda Nunes

Amanda Nunes stands alone as the only female fighter to hold two UFC belts simultaneously, a feat she achieved by finishing Ronda Rousey in 48 seconds in 2016 and Cris Cyborg in 51 seconds in 2018. Her 13-fight winning streak from 2015 to 2021 includes victories over five former champions: Rousey, Cyborg, Holly Holm, Miesha Tate, and Valentina Shevchenko. Her ability to dismantle elite competition across two weight classes cements her as the greatest female fighter of all time, with a resume no other woman has matched.