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.
Melissa Franklin Johnson is an American former competition swimmer and five-time Olympic gold medalist. She formerly held the world record in the 200-meter backstroke. As a member of the U.S. national swim team, she also held the world records in the 4×100-meter medley relay.
The swimming portion of the 2011 FINA World Championships was held July 24–31 at the Shanghai Oriental Sports Center in Shanghai, China. Swimming is one of five aquatic disciplines at the championships.
The American team competed at the 2011 World Aquatics Championships in Shanghai, China from July 16 to July 31. The United States topped the gold medal count in the competition with 17 golds and finished the competition with 32 total medals, behind China's 36. 16 of the 17 gold medals came from the swimming competition and one came from the open water swimming competition. Individually, Michael Phelps won the most overall medals in the competition with seven. Ryan Lochte won the most gold medals among the male competitors with five and finished the competition with six medals total.
The women's 100 metre butterfly competition of the swimming events at the 2011 World Aquatics Championships took place on 24 and 25 July. The heats and semifinals took place on 24 July and the final was held on 25 July.
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 women's 4×100 metre freestyle relay competition of the swimming events at the 2011 World Aquatics Championships took place July 24. The heats and final took place July 24.
The women's 100 metre backstroke competition of the swimming events at the 2011 World Aquatics Championships were held on July 25 with the preliminary round and the semifinals and July 26 with the final.
The women's 100 metre breaststroke competition of the swimming events at the 2011 World Aquatics Championships was held on July 25 with the preliminary round and the semifinals and July 26 with the final.
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 4×200 metre freestyle relay competition of the swimming events at the 2011 World Aquatics Championships took place July 28. The heats and final were held on July 28.
The men's 4×200 metre freestyle relay competition of the swimming events at the 2011 World Aquatics Championships was held on July 29 with the heats and final.
The women's 200 metre backstroke competition of the swimming events at the 2011 World Aquatics Championships was held on July 29 with the heats and the semifinals and July 30 with the final.
The men's 4×100 metre medley relay competition of the swimming events at the 2011 World Aquatics Championships took place July 31. The heats and final took place July 31.
James Roberts is an Australian swimmer. He is a two-time medalist at the World Championships, and represented Australia at the 2012 Summer Olympics.
Daynara Lopes Ferreira de Paula is a Brazilian butterfly swimmer.
The women's 4 × 100 metre medley relay competition of the swimming events at the 2012 European Aquatics Championships took place May 27. The heats and final took place on May 27.
The men's 4 × 100 metre medley relay competition of the swimming events at the 2012 European Aquatics Championships took place May 27. The heats and final took place on May 27.
