Nesta Carter
Seven days later, Powell finally got his first Olympic medal as he anchored the Jamaican 4 × 100 m relay team to victory, helping establish a new world record in the process. His split time was recorded at 8.70 s (USATF High Performance Registered Split Analysis), bettering his previous record of 8.84 s set in Osaka, 2007. This is the fastest electronically timed anchor run in history, as Bob Hayes was hand timed as running between 8.6 and 8.9 seconds in the 1964 Olympics. The gold medal was later vacated by the IOC in 2017 when a retest of teammate Nesta Carter found the presence of the prohibited substance methylhexaneamine.