Usain Bolt's 9.58 World Record (2009)

Usain Bolt's 9.58-second 100m sprint at the 2009 Berlin World Championships remains the most dominant track record ever set. He improved his own world record by 0.11 seconds. Bolt's reaction time of 0.146 seconds was slower than the average finalist, yet he still averaged 37.58 km/h, a speed faster than the typical Olympic sprinter's peak. No other runner has come within 0.09 seconds of this time, making it a benchmark of human speed.