Olympic champion Usain Bolt (picture) said he felt shocked and let down by the scandal-hit IAAF, but the Jamaican sprinter was against resetting records as the sport attempts to move on from the doping crisis.

Thursday’s second instalment of a WADA report slammed the IAAF, accusing its former head, Lamine Diack, of running a clique that covered up organised doping and blackmailed athletes as senior officials looked the other way.

Jamaican sprint king Bolt, the biggest name in athletics with a plethora of titles, records and commercial deals, said the IAAF had failed their athletes.

“When I heard it was quite shocking for me to hear that because as far as I was concerned I think they were doing a good job to clean up the sport,” Bolt told Reuters.

“It’s kind of a letdown, so hopefully there’s no such thing, but we’ll see what happen (with the investigations).”

Last week, UK Athletics (UKA) released “A Manifesto for Clean Athletics”, calling for world records to be wiped clean in radical proposals aimed at heralding in a new era for the sport.

The 29-year-old Bolt, who set the 100 metre and 200m world records of 9.58 and 19.19 seconds in 2009 and shared in the 4x100m mark of 36.84secs in 2012, was against the proposal.

“As far as I’m concerned it’s really pointless,” he said.

“What’s done is done, you have to just move forward and try to make the upcoming championships and the next (world) records as best as we can and just look forward to the future,” added the 11-times World Championship gold medallist.

“You can’t worry about the past, but build on the future.”