Greek swimmer Kristian Gkolomeev got a $1 million (€860,000) bonus at the inaugural Enhanced Games in Las Vegas on Sunday for going faster than the official 50 meters freestyle world record with a time of 20.81 seconds.

The 32-year-old, who failed to win a medal in four Olympics, set a faster time than Australian Cameron McEvoy's real world record of 20.88 seconds at the Chinese Swimming Open in March.

The Enhanced Games, as its name suggests, allows athletes to take performance-enhancing substances that are banned in mainstream competitions.

'Circus, built on short-cuts'

World sporting authorities have denounced the event as dangerous and say any new records will not be officially recognized.