When was your last 100-meter dash? For Japan’s Hidekichi Miyazaki, it was last week. At 105 years young, this Japanese sprinter has been dubbed “Golden Bolt” after Olympic gold medalist Usain Bolt. Last week, Miyazaki attempted to beat his personal... If being a competitive sprinter at the age of 105 isn’t amazing enough, Miyazaki did not even begin his running career until the ripe old age of 90.