The findings intensified pressure on the International Olympic Committee to reassess Russia’s medals from the 2014 Winter Olympics in Sochi and penalize the nation ahead of the 2018 Winter Games. The evidence, published by the World Anti-Doping Agency, was the coda to a set of investigations led by the Canadian lawyer Richard McLaren, who issued a damning report in July that prompted more than 100 Russian athletes to be barred from the 2016 Summer Olympics in Rio de Janeiro. LONDON — International sports’ antidoping watchdog on Friday laid out mountainous evidence that for years Russian officials orchestrated a doping program at the Olympics and other competitions that involved or benefited 1,000 athletes in 30 sports. Most notably, he said more than 1,000 Russian Olympians and Paralympians – in summer and winter sports – were identified “as being involved in or benefiting from manipulation to conceal positive doping tests.” 
 
 Among the report’s other findings: 
 
 Urine swapping aided by the FSB during the Sochi Olympics began with two events in Russia, including the 2013 IAAF World Championships, serving as trial runs. Some samples were clearly fraudulent: Urine provided by two female hockey players at the Sochi Games contained male DNA.
– The Russian doping scandal just keeps getting bigger: A new report implicates 1,000 athletes in 30 sports over recent years, along with officials at various levels of government. The upshot is sure to be increased pressure to penalize Russia ahead of the 2018 Winter Games. In the report—which amplifies an earlier one in July—World Anti-Doping Agency investigator Richard McLaren lays out 1,166 "immutable facts" he says prove Russia to be guilty of an "institutional conspiracy" between 2011 and 2015, per the New York Times. This involved cheating "on an unprecedented scale" at the 2012 London Olympics, where athletes were given a "cocktail of steroids ... to beat the detection thresholds," McLaren says. The Russian Anti-Doping Agency says accusations of cheating haven't been proven, reports USA Today. Though his initial report helped ban 30% of Russia's delegation from the Rio Games, McLaren's investigation continued. American athletes, for example, have discussed boycotting the world championships in bobsled to be held in Sochi in February over lingering concerns about doping. "Coaches and athletes have been playing on an uneven field," McLaren says, per the AP. "It's time that this stops." New evidence presented in the report shows Russian officials swapped or tampered with urine samples, including those of 15 medalists at the 2014 Sochi Olympics. Samples from female athletes, for example, had male DNA. IOC's president has said he supports lifetime Olympic bans for athletes and officials involved.