Michael Phelps' last race wasn't so much of a race as it was a formality—the end to the greatest
swimming career of all time.
Phelps' big finish was swimming his signature stroke—the butterfly—during the 4x100 meter relay. The men's team swam away with gold, and Phelps cinched his final prize. Michael Phelps now retires with twice as many gold medals as any other Olympian, and 22 medals total.
After swimming, he stepped out of the pool smiling, obviously at peace with his decision to retire on top. A fitting end to a truly incredible athelete.