Ronda Jean Rousey -- born February 1, 1987, is an American mixed martial artist, judoka (practitioner of judo) and actress. She is the f irst and current UFC Women's Bantamweight Champion, as well as the last Strikeforce Women's Bantamweight Champion. She is undefeated, having won nine of her eleven fights by armbar. Rousey became the first American woman to earn an Olympic medal in Judo at the Summer Olympics in Beijing in 2008.
Mark Spitz won seven gold medals at the 1972 Summer Olympics, an achievement only surpassed by Michael Phelps who won eight golds at the 2008 Olympics in Beijing. Spitz set new world records in all seven events in which he competed, a record that still stands. Since the year 1900, no other swimmer has ever gained so great a percentage of all the medals awarded for Olympic events held in a single Games.