Dana Whitney Vollmer is a former American competition swimmer, five-time Olympic gold medalist, and former world record-holder. At the 2004 Summer Olympics, she won a gold medal as a member of the winning United States team in the 4×200-meter freestyle relay that set the world record in the event. Eight years later at the 2012 Summer Olympics, Vollmer set the world record on her way to the gold medal in the 100-meter butterfly, and also won golds in the 4×100-meter medley relay and 4×200-meter freestyle relay. She won three medals including a gold at the 2016 Summer Olympics in Rio de Janeiro.
Sarah Fredrika Sjöström is a Swedish competitive swimmer specialising in the sprint freestyle and butterfly events. Sjöström is one of the most decorated swimmers in the history of swimming.
Kathleen Genevieve Ledecky is an American competitive swimmer. She has won eight Olympic gold medals and 21 world championship gold medals, the most in history for a female swimmer. With 13 medals, she is also the most decorated female American Olympian in history. She has won a world record 16 individual gold medals at the World Aquatics Championships. Ledecky's 7 individual gold medals at the Olympics and 26 overall medals at the World Aquatics Championships are records in women's swimming. Ledecky is the world record holder in the women's 800- and 1500-meter freestyle as well as the former world record holder in the women's 400-meter freestyle. She also holds the fastest-ever times in the women's 500-, 1000-, and 1650-yard freestyle events. She is widely regarded as the greatest female swimmer of all time and one of the greatest Olympians of all time.
Olivia Smoliga is a 2X Olympian and American competitive swimmer who specializes in backstroke and freestyle events. She won a record eight gold medals at the 2018 World Championships, becoming the first swimmer, male or female, to win eight or more gold medals in a single FINA World Swimming Championships or FINA World Aquatics Championships. Smoliga is the current American record-holder in the 50-meter backstroke. She is also the current Guinness World Record holder for "most gold medals won at a single FINA World Championships" by an individual swimmer. At the 2016 Summer Olympics held in Rio de Janeiro, she won a gold medal for swimming the backstroke leg in the preliminary heat of the 4x100-meter medley relay.
Simone Ashley Manuel is an American professional swimmer specializing in freestyle events. At the 2016 Rio Olympics, she won two gold and two silver medals: gold in the 100-meter freestyle and the 4×100-meter medley, and silver in the 50-meter freestyle and the 4×100-meter freestyle relay. In winning the 100-meter freestyle, a tie with Penny Oleksiak of Canada, Manuel became the first Black American woman to win an individual Olympic gold in swimming and set an Olympic record and an American record. At the 2020 Tokyo Olympics, she won a bronze medal as the anchor of the American 4×100-meter freestyle relay team.
Apostolos Christou is a Greek swimmer specializing in backstroke. He is the Greek National Record holder in the 100 metre freestyle and 50, 100, and 200 metre backstroke events, as well as contributing to national record efforts in the 4x100 metre freestyle and medley relays. He is a three-time olympian, qualifying in 2016, 2021, and most recently 2024, where he became Greece's first olympic medalist in swimming since the inaugural 1896 games through his 2nd place finish in the 200 metre backstroke.
Emma Jennifer McKeon, is an Australian competitive swimmer. She is an eight-time world record holder, three current and five former, in relays. Her total career haul of 12 Olympic medals following the 2024 Olympic Games made her Australia's most decorated Olympian and included one gold medal from the 2016 Summer Olympics in Rio de Janeiro, four gold medals from the 2020 Summer Olympics in Tokyo and one gold medal from the 2024 Summer Olympics in Paris. With four gold and three bronze medals she was the most decorated athlete across all sports at the 2020 Summer Olympics, and tied for the most medals won by a woman in a single Olympic Games. She has also won 20 medals, including five gold medals, at the World Aquatics Championships; and a record 20 medals, including 14 gold, at the Commonwealth Games.
James George Guy is an English competitive swimmer who specialises in freestyle and butterfly. Guy has won multiple gold medals at each of the major international meets available to him, including for Great Britain at the Olympic Games (3), the World (5) and European Championships (7), and for England in the Commonwealth Games (2). In addition to further medals in those events, he has also reached the podium at both the World and European short-course championships. With 45 major medals at international championship meets, 19 at global level, he is one of the most decorated swimmers in British history.
Abbigail "Abbey" Weitzeil is an American competition swimmer specializing in sprint freestyle. A multiple time Olympic medalist, she won a gold medal in the 4x100-meter medley relay for swimming in the preliminary heats and a silver medal in the 4x100-meter freestyle relay at the 2016 Rio Olympics. At the 2020 Summer Olympics she won a silver medal in the 4x100-meter medley relay and a bronze medal in the 4x100-meter freestyle relay, swimming in the final of both events. She is the American record holder in the 50-yard freestyle and is part of the American Record in the 4x100-meter freestyle relay.
The men's 4 × 100 metre medley relay event at the 2016 Summer Olympics in Rio de Janeiro took place on 12–13 August at the Olympic Aquatics Stadium.
The women's 4 × 100 metre freestyle relay event at the 2016 Summer Olympics took place on 6 August at the Olympic Aquatics Stadium.
The women's 4 × 200 metre freestyle relay event at the 2016 Summer Olympics took place on 10 August at the Olympic Aquatics Stadium.
Evgeny Mikhailovich Rylov is a Russian competitive swimmer and Olympic champion specializing in backstroke events. He won three gold medals at the 2014 Summer Youth Olympics in Nanjing, and a bronze medal at his senior international debut at the 2015 World Championships in Kazan. He also won a bronze medal at the 2016 Summer Olympics in Rio de Janeiro and a gold medal at the 2017 World Championships in Budapest, both were in the 200 metre backstroke event. In 2018, at the 2018 World Short Course Championships, he won gold medals in the 200 metre backstroke and 50 metre backstroke. At the 2019 World Championships, he won a gold medal in the 200 metre backstroke, silver medal in the 100 metre backstroke, and silver medal in the 50 metre backstroke. He won the gold medal in the 100 metre backstroke and 200 metre backstroke at the 2020 Summer Olympics in Tokyo.
Penelope Oleksiak is a Canadian competitive swimmer. Her country's most decorated Olympian, Oleksiak rose to fame during the 2016 Summer Olympics, where she became the first Canadian to win four medals in the same Summer Games, and the country's youngest Olympic champion with her gold medal win in the 100 m freestyle. She was the first athlete born in the 2000s to claim an Olympic gold medal in an individual event. Her success led to her being awarded the 2016 Lou Marsh Trophy as Canada's top athlete, the Bobbie Rosenfeld Award as Canada's top female athlete for 2016, and a member of the Canadian Press team of the year. Five years later she won three additional medals at the 2020 Summer Olympics, breaking the national record for Olympic medals.
Kathleen Baker is an American competition swimmer who specializes in freestyle and backstroke events. At the 2016 Summer Olympics, she won a gold medal in the 4x100-meter medley relay and a silver medal in the individual 100-meter backstroke. She is the former world-record holder in 100 meter backstroke, set on July 28, 2018, in 58.00 at the William Woollett Jr. Aquatics Center in Irvine, CA. Baker is also the former world-record holder in the 4x100 meter medley relay with Lilly King, Dana Vollmer, and Simone Manuel.
The women's 4 × 100 metre freestyle relay event at the 2020 Summer Olympics will be held in 2021 at the Tokyo Aquatics Centre. It will be the event's twenty-fifth appearance at the Olympics, having been held at every edition since 1912.
Zachary "Zach" Douglas Apple is a retired American competitive swimmer who specialized in the sprint freestyle events. He used to swim for DC Trident in the International Swimming League. He won his first Olympic gold medal in the 4x100-meter freestyle relay at the 2020 Summer Olympics, swimming in the prelims and the final of the event, and later in the same Olympic Games won a gold medal and helped set a new world record and Olympic record in the 4x100-meter medley relay, swimming the freestyle leg of the relay in the final.
Claire Curzan is an American competitive swimmer and Olympian. Specialising in multiple events, she earned an Olympic silver medal in the 4×100 meter medley relay in the 2020 Summer Olympics by swimming the preliminary butterfly leg. She holds junior world records in the long course 50 meter freestyle and 100 meter butterfly and the short course 50 meter butterfly and 100 meter butterfly. She also holds American records in the short course 50 meter backstroke and 50 meter butterfly, and formerly held the American record in the 100 yard butterfly. She currently swims for the Virginia Cavaliers.
Victoria "Torri" Huske is an American competitive swimmer and the reigning Olympic champion in the 100-meter butterfly event, having won the gold medal at the 2024 Summer Olympics. She is the former American record holder in the 50- and 100-meter butterfly. At the 2022 Fina World Swimming Championships in Budapest, Hungary, Huske, 19, won three gold and three bronze medals, joining just three other American women in winning six medals at a World Championships.
Gretchen Walsh is a competitive American swimmer and the world record holder in the 100 meter butterfly. She won the silver medal in that event in the 2024 Summer Olympics in Paris. In a preliminary event, she set the Olympic record in the 100 fly with a time of 55.38. She additionally holds two world junior records in mixed gender relay events as well as American records in the 50 yard freestyle, 100 yard freestyle, 100 yard butterfly, 100 yard backstroke, 4×50 yard freestyle relay, 4×50 yard medley relay, 4×100 yard freestyle relay, and 4×100 yard medley relay.
