Usain Bolt, whose 9.58 seconds world record for the 100 metres is now 16 years old, says he could have run 9.42 in the carbon-plated “super-spikes” that today’s sprinters are racing in.
The Jamaican set his mark at the 2009 world championships in Berlin, breaking his own 9.69 record from the previous year’s Beijing Olympics, and it has now stood for longer than the 14 years of Jim Hines’s 9.95
