Hello how may I help you? Yes I have a question about the guiness world records. Of course. What is the question? Who ran the fastest 100m dash in world history? To confirm, you would like to find out who ran the fastest 100M dash in world history? Yes please. Usain Bolt ran the fastest 100M in the world in 2009. Did he win an olympic medal? Usain ran this in 9.28 seconds. However, I am unable to determine if he won an Olympic medal for this. Ok thanks. Thats all I needed. Thank you. Have a nice day.