The fastest electronically timed anchor leg run is 8.65 seconds by Usain Bolt at the 2015 IAAF World Relays, while Bob Hayes was hand-timed as running 8.7 seconds on a cinder track in the 1964 Tokyo Games Final. The Tokyo Games also had electronic timing; upon video review, Hayes ran 8.6 seconds in the final and an astonishing 8.5 seconds in the semi-final.