Bolt
The Jamaican Usain Bolt broke the 100 meter world record today in Berlin, running in an amazingly fast 9:58. It was the fastest race in history.
From the NY Times:
"All those curious to know just how fast Usain Bolt might have gone if he had not stopped sprinting near the end of his world-record run at the Olympics last year now have a clearer answer.
Jamaica's Usain Bolt won the men's 100m at IAAF Athletics World Championships, flanked by Tyson Gay, who came in second, left, and Daniel Bailey, right, on Sunday in Berlin.
Bolt pushed himself from start to finish Sunday night, and the result was a stunning time of 9.58 seconds in the men’s 100-meter final at the world track and field championships: eleven-hundredths of a second better than his game-changing mark of 9.69 in Beijing.
Tyson Gay, the understated American who was considered Bolt’s biggest threat here, ran the race of his life, setting a national record of 9.71. But Gay was beaten convincingly in the Olympic Stadium as Bolt took the biggest bite out of the men’s 100 record since electronic timing became mandatory for record ratification in 1977."

