Olympics spoiler alert - Usain Bolt has been outrun! How do we know this before the world's fastest man has even run the finals of his signature 100-meter dash? Because, while Usain hopes to complete the distance in 9.4 seconds, Sarah has already done it in a blistering 5.95 seconds. However, in all fairness to the Jamaican sprinter, she does have a slight advantage, because Sarah is not a two-legged human, but a four-legged cheetah!