More than 1,000 Russian Olympic athletes were involved in concealment of doping test, an independent WADA report said on Friday. There was a systematic cover up at the 2012 London Olympic Games, 2013 world athletics championships and 2014 Sochi Winter Olympics, which includes more than 30 sports.
Russia won 24 gold, 26 silver and 32 bronze medals at the London games and no athlete tested positive. There was a report saying that urine sample-swapping was a regular practice at the Sochi games. There were also reports of DNA mismatches, where a second sample did not match the DNA of previous specimens.
Although some Russian athletes were banned from competing at Rio, the International Olympic Committee rejected a ban and instead, let international sports federations decide which athletes should be eligible to compete.
