Russia at the Olympics the Unified Team in 1992, and finally returned once again as "Russia" at the 1994 Winter Olympics. The Russian Olympic Committee was created in 1991 and recognized in 1993. The Soviet Union hosted the 1980 Summer Olympics in Moscow, and the Russian Federation hosted the 2014 Winter Olympics in Sochi. In six appearances Russian athletes have won a total of 428 medals at the Summer Olympic Games and another 120 at the Winter Olympic Games. Over the most recent twelve Games (since 1994), Russia's 548 total medals, including 196 gold medals, are second only to the United States. All Summer
Olympic Games detect banned substances. Several athletes were barred from competition by their National Olympic Committees prior to the Games; only three athletes failed drug tests while in competition in Beijing. In London over 6,000 Olympic and Paralympic athletes were tested. Prior to the Games 107 athletes tested positive for banned substances and were not allowed to compete. During and after the Games eight athletes tested positive for a banned substance and were suspended, including shot putter Nadzeya Ostapchuk, who was stripped of her gold medal. Russia was partially banned from the 2016 Summer Olympics and completely banned from the 2018 Winter