Strikeforce bantamweight champion Ronda Rousey has made quite a name for herself. She won the belt from Miesha Tate in March, and since then has appeared on "The Ultimate Fighter," in magazines and at UFC and Strikeforce shows.
Amanda Nunes has catapulted herself into the Number 1 position on our list with her devastating defeats of both Miesha Tate and Ronda Rousey. A feat she accomplished in a matter of six months. All it took for her to defeat both of them was a combined 2 rounds.