Ekaterina Guliyev

In the 800 meters event at the 2012 Summer Olympics, Guliyeva placed second in her first-round heat with a time of 2:01.08.^[1] She then placed second in the semifinals with a time of 1:59.45.^[1] She won the bronze medal that day in the 800 m final with a time of 1:57.53^[1] behind fellow Russian Mariya Savinova (1:56.19) and Caster Semenya of South Africa (1:57.23).

In November 2015, after an investigation that completed that year, Guliyeva (along with four other Russian runners) was recommended by the World Anti-Doping Agency to receive a retroactive lifetime ban for doping during the 2012 Olympics.^[2][3] On 7 April 2017, CAS refused to backdate disqualification as far back as 2012, and disqualified Guliyeva from 2015 onward.^[4] Her 2012 Olympic bronze medal was upgraded to silver after countrywoman Mariya Savinova's lifetime ban from competition due to doping, which annulled all of Savinova's results backdating to July 2010 and stripped Savinova's 2012 Olympic gold medal.

On 28 March 2024, twelve years after the London Games, the Court of Arbitration for Sport announced that Guliyev herself had been stripped of her medal, and banned for two years for further doping violations. All the competitive results from 17 July 2012 until 20 October 2014 are disqualified.^[5][6]

In early 2024, the Russian Athletic Federation annulled her results from July 2012 to October 2014 and banned her from competition for four years. She has been stripped of her 2012 Olympic 800m silver medal, according to sources.^[7]

Zavyalova was born in Arzamas in the USSR. After marrying fellow middle-distance runner Stepan Poistogov, she adopted the feminine form of his surname, Poistogova.^[8] She returned to her birth name following their divorce. In 2019, Zavyalova married sprinter Ramil Guliyev, and she gave birth to their daughter the following year.^{[citation needed]}

• List of doping cases in athletics
• List of Olympic medalists in athletics (women)
• List of 2012 Summer Olympics medal winners
• Doping at the Olympic Games
• 800 metres at the Olympics