A total of nine athletes, all of them women and seven of them Russian, have had their 800 m results annulled at the World Championships due to doping infractions. The first was
Delisa Floyd of the United States (1991 semi-finalist) was among the first few women to be disqualified from the championships for doping. The 1993 finalist
Liliya Nurutdinova was the only woman disqualified at the 1993 championships. Another Russian,
Lyubov Tsyoma, had her semi-final run in 1997 annulled. Ten years passed without incident until a third Russian,
Svetlana Cherkasova was struck from the heats for doping in 2007. Two women semi-finalists were disqualified for doping in 2009: a fourth Russian,
Svetlana Klyuka, and
Tetiana Petlyuk of Ukraine. Petlyuk was retrospectively banned through a
biological passport anomaly and this also took in her run at the 2011 World Championships. That same year two more Russians were disqualified, both of them finalists:
Yuliya Rusanova and
Yekaterina Kostetskaya. In 2017, the third Russian finalist, gold medalist
Mariya Savinova was banned for life, retroactive to 2010, making it a clean sweep of disqualified Russians in 2011, as well as taking Savinova's silver in 2013. Both times
Alysia Johnson Montaño advanced to take the bronze medal. ==Medalists==