what is a fast 100m time uk sprint fastest 100m sprinters 1970 2020 fastest men s 100m record in olympics 100m world record 9 27 seconds the sprinting 30m 50m 100m close to fastest 100 meter dash a human can run best all time adjusted 100 meter 100m sprint performance how fast lamont marcell jacobs ran to fastest 100 meter dash a human can run fastest high 100m dash ever how fast the jamaican sprinters ran to every country s fastest man in one race