Yuliya Andreyevna Yefimova is a Russian competitive swimmer. She is the Russian national record holder in the 200 metre individual medley, 50 metre breaststroke, 100 metre breaststroke, and 200 metre breaststroke. After making her Olympic debut in 2008, she went on to win the bronze medal in the 200 metre breaststroke in 2012, and silver medals in the 100 metre and 200 metre breaststroke in 2016. She is a six-time World Champion, winning the 50 metre breaststroke in 2009 and 2013, the 100 metre breaststroke in 2015, and the 200 metre breaststroke in 2013, 2017, and 2019. She is also a former world record holder in the 50 metre breaststroke.
The women's 200 metre individual medley competition of the swimming events at the 2011 World Aquatics Championships took place July 24 and 25. The heats and semifinals took place July 24 and the final was held July 25.
The men's 200 metre individual medley competition of the swimming events at the 2011 World Aquatics Championships took place July 27 and 28. The heats and semifinals took place July 27 and the final was held July 28.
The women's 400 metre individual medley competition of the swimming events at the 2012 European Aquatics Championships took place May 21. The heats and final took place on May 21.
The women's 200 metre backstroke competition of the swimming events at the 2012 European Aquatics Championships took place May 21 and 22. The heats and semifinals took place on May 21, the final on May 22.
The men's 100 metre backstroke competition of the swimming events at the 2012 European Aquatics Championships took place May 22 and 23. The heats and semifinals took place on May 22, the final on May 23.
The women's 100 metre breaststroke competition of the swimming events at the 2012 European Aquatics Championships took place May 22 and 23. The heats and semifinals took place on May 22, the final on May 23.
The men's 200 metre individual medley competition of the swimming events at the 2012 European Aquatics Championships took place May 22 and 23. The heats and semifinals took place on May 22, the final on May 23.
The men's 200 metre butterfly competition of the swimming events at the 2012 European Aquatics Championships took place May 23 and 24. The heats and semifinals took place on May 23, the final on May 24.
The men's 200 metre breaststroke competition of the swimming events at the 2012 European Aquatics Championships took place May 23 and 24. The heats and semifinals took place on May 23, the final on May 24.
The women's 100 metre backstroke competition of the swimming events at the 2012 European Aquatics Championships took place May 23 and 24. The heats and semifinals took place on May 23, the final on May 24.
The men's 50 metre backstroke competition of the swimming events at the 2012 European Aquatics Championships took place May 23 and 24. The heats and semifinals took place on May 23, the final on May 24.
The women's 200 metre breaststroke competition of the swimming events at the 2012 European Aquatics Championships took place May 24 and 25. The heats and semifinals took place on May 24, the final on May 25.
The women's 100 metre butterfly competition of the swimming events at the 2012 European Aquatics Championships took place May 24 and 25. The heats and semifinals took place on May 24, the final on May 25.
The men's 200 metre backstroke competition of the swimming events at the 2012 European Aquatics Championships took place May 25 and 26. The heats and semifinals took place on May 25, the final on May 26.
The women's 200 metre freestyle competition of the swimming events at the 2012 European Aquatics Championships took place May 25 and 26. The heats and semifinals took place on May 25, the final on May 26.
The women's 50 metre breaststroke competition of the swimming events at the 2012 European Aquatics Championships took place May 26 and 27. The heats and semifinals took place on May 26, the final on May 27.
The women's 200 metre butterfly competition of the swimming events at the 2012 European Aquatics Championships took place May 26 and 27. The heats and semifinals took place on May 26, the final on May 27.
The women's 50 metre freestyle competition of the swimming events at the 2012 European Aquatics Championships took place May 26 and 27. The heats and semifinals took place on May 26, the final on May 27.
The men's 400 metre individual medley competition of the swimming events at the 2012 European Aquatics Championships took place May 27. The heats and final took place on May 27.
