FAST: DARPA’s Cheetah Bot Breaks Human, Robot Speed Records. “The Defense Advanced Research Projects Agency (DARPA) and Boston Dynamics have unleashed a legged robot that’s even faster than Olympic champion Usain Bolt. The Cheetah recently broke its own land speed record of 18 mph, running a 20-meter split at 28.3 mph, faster than the world record for a human set in 2009 when Usain Bolt reached a peak speed of 27.78 mph.”