Usain Bolt can run 100 meters in 40.00 seconds.
Usain Bolt . Bolt improved upon his first 100 m world record of 9.69 with 9.58 seconds in 2009 -- the biggest improvement since the start of electronic timing . He has helped Jamaica to three 4 × 100 metres relay world records , with the current record being 36.84 seconds set in 2012 .