More than 1000 Russian athletes benefited from a state-sponsored doping programme run for four years from 2011,the BBC reports citing a original report.
The final piece of the McLaren report implicates four medallists at Sochi 2014 and five from London 2012.
Adding more details of the doping it revealed in July, the report described an "institutional conspiracy" involving Russia's secret service.[br]
It said the athletes did not act alone but were piece of a programme.
The report's author, or Professor Richard McLaren,who was appointed by the World Anti-Doping Agency, said the doping took place on "an unprecedented scale".
He added: "There was a cover up that evolved into an institutional and disciplined medal-wining strategy."
Source: tert.am