Ronda Jean Rousey is an American mixed martial artist, judoka and actress. She is the first and current UFC Women's Bantamweight Champion, as well as the last Strikeforce Women's Bantamweight Champion. She is undefeated in mixed martial arts, having won eleven of her twelve fights in the first round and nine by armbar. Rousey was the first U.S. woman to earn an Olympic medal in Judo at the Summer Olympics in Beijing in 2008. In 2015, Rousey was ranked number one of fifty Most Dominant Athletes Alive.