Yuliya Andreyevna Yefimova is a Russian competitive swimmer. After making her Olympic debut in 2008, she went on to win the bronze medal in the 200 metres breaststroke in 2012, and silver medals in the 100 metres and 200 metres breaststroke in 2016. She is a six-time World Champion, winning the 50 metres breaststroke, the 100 metres breaststroke, and the 200 metres breaststroke. She is also a former world record holder in the 50 metres breaststroke. In January 2014, it was announced that Yefimova had failed an out of competition drug test in October 2013. Her positive test was for DHEA, an endogenoussteroid hormone banned in professional sports. On 13 May 2014, she was disqualified for 16 months, from 31 October 2013, until 28 February 2015.
In the 2017 New South Wales State Open Championships in March, Yefimova won the 200 m breaststroke event with a time of 2:28.80. and won the 100 m breaststroke with a time of 1:06.55. A month later, she won the 50 m breaststroke at the 2017 Russian Championships with a time of 29.88. In July 2017 at the World Championships in Budapest, Yefimova won the bronze medal in the 100 metres breaststroke in 1:05.04. Three days later, she won the 200 metres breaststroke in 2:19.64, to give her the fifth World Championship title of her career.
Doping scandals
In January 2014, it was announced that Yefimova had failed an out of competition drug test in October 2013. Her positive test was for DHEA, an endogenous steroid hormone banned in professional sports. On 13 May 2014, she was disqualified for 16 months, from 31 October 2013, until 28 February 2015. She was also stripped of her results and medals at the 2013 European Short Course Championships. Her four world short-course records were also invalidated. Between 15 February and 30 March 2016, Yefimova tested positive for meldonium six times in total. She was provisionally suspended from international competition by the International Swimming Federation on 14 March. With no research on how long the drug stayed in a person's system, she was not banned or given a suspension.
2016 Olympics controversy
Yefimova's participation in the 2016 Summer Olympics was controversial in light of an ongoing scandal of doping within the Russian Olympic Team. She was initially banned from participation due to her previous doping suspension, but this ban was overturned by the Court of Arbitration for Sport, allowing her to compete. During the Games, she was booed by spectators during each of her races. Yefimova was also criticized for taking performance-enhancing drugs by other swimmers, including Lilly King, who won the gold medal in the 100 m breaststroke. Yefimova won the silver, and during the news conference afterwards, she was "on the verge of tears from the opening question about the boos directed at her."