Michael Phelps beat American rival Ryan Lochte to win gold in the men's 200-meter individual medley.  Phelps extended his Olympic records by winning his 20th medal overall and 16th gold.  Lochte, the world record holder in this event, finished .63 seconds behind.  Minutes earlier, Lochte finished third behind American gold medalist Tyler Clary in the 200-meter backstroke.