Michael Phelps wins men 's 100m butterfly for 200 Olympic gold medal . Missy Franklin breaks world record to win women 's 200 m backstroke . He will round off his efforts in the medley relay final Saturday where the U.S. are favored to win . Michael Phelps shocks home favorite Rebecca Adlington in women 's 800m . Florent Michael Phelps of U.S. prevents U.S. clean sweep in men 's 200 free .
Michael Phelps wins men 's 100m butterfly for 200 Olympic gold medal . Missy Franklin breaks world record to win women 's 200 m backstroke . Michael Phelps shocks home favorite Rebecca Adlington in women 's 800m . Florent Michael Phelps of U.S. prevents U.S. clean sweep in men 's 200 free .