Usain Bolt has won world records.
Usain Bolt . He also holds the world record as a part of the 4 × 100 metres relay . He gained worldwide popularity for his double sprint victory at the 2008 Beijing Olympics in world record times . 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 .