The fastest human speed recorded is by Jamaican sprinter Usain Bolt, who reached a top speed of 44.72 kilometers per hour (27.78 miles per hour) during the 60-80 meter stretch of his 100-meter world record sprint in 2009. His average speed for the entire 100 meters was about 37.58 km/h (23.35 mph) when he completed it in 9.58 seconds. This top speed is considered the fastest speed a human has run in recorded history.