Nathan Ghar-jun Adrian is an American competitive swimmer and five-time Olympic gold medalist who formerly held the American record in the long course 50-meter freestyle event.
Cate Natalie Campbell, is a Malawian-born Australian competitive swimmer, and a current multiple world record holder, who won two bronze medals at the 2008 Summer Olympics, a gold medal at the 2012 Summer Olympics, a gold and a silver medal at the 2016 Summer Olympics and a gold medal at the 2020 Summer Olympics. She is the current world record holder in the Long Course 4 x 100 m Freestyle Relay with Team Australia and the short course 100 m freestyle. Campbell was one of the flagbearers for Australia at the Tokyo 2020 Olympics alongside basketball player Patty Mills.
James Magnussen is a retired Australian swimmer and Olympic medallist. He was the 2011 and 2013 100-metre freestyle world champion, and holds the record for the fifth fastest swim in history in the 100-metre freestyle, with a time of 47.10, which until 2016 also stood as the fastest swim in textile swimwear material.
Bronte Campbell is a Malawian-born Australian competitive swimmer, a dual Olympic gold-medal winner and world champion. Her older sister, Cate, is also a competitive swimmer, and once held world records in both the short and long course 100 metre individual freestyle events. Bronte and Cate are the first Australian siblings on the same Olympic swimming team since the 1972 Olympics and the first Australian sisters ever to compete within the same swimming event at the Olympics. Bronte Campbell won three gold medals at the 2015 World Championships, including the 50 and 100 metre freestyle events.
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 4x100-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.
Emma Jennifer McKeon, is an Australian competitive swimmer. She is a four-time world record holder, one current and three former, in the 4x100 metre freestyle relay. Her total career haul of 11 Olympic medals following the 2020 Olympic Games made her Australia's most decorated Olympian and included one gold medal from the 2016 Summer Olympics in Rio de Janeiro and four gold medals from the 2020 Summer Olympics in Tokyo. 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 17 medals, including four gold medals, at the World Aquatics Championships; and a record 20 medals, including 14 gold, at the Commonwealth Games.
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.
Madison Maree Wilson, is an Australian competitive swimmer who has participated in backstroke and freestyle events at the Olympic Games and the FINA world championships. Wilson has been a member of three world record Australian relay teams, most recently at the 2022 Commonwealth Games.
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.
Taylor Madison Ruck is a Canadian competitive swimmer. She won two Olympic bronze medals as part of Canada's women's 4×100 metre and 4×200 metre freestyle relay teams at the 2016 Summer Olympics in Rio de Janeiro. Ruck won eight medals at the 2018 Commonwealth Games in Gold Coast, Australia. Her eight medal performance of one gold, five silver, and two bronze tied her with three other athletes for the most all-time at a single Commonwealth Games, as well as making her the most decorated Canadian female athlete ever at a single Commonwealth Games. Ruck is the all-time leading medallist at the FINA World Junior Swimming Championships having won nine gold, two silver, and two bronze over the course of the 2015 and 2017 editions.
Kyle Chalmers, is an Australian competitive swimmer. He is a world record holder in the short course 100 metre freestyle, 4×100 metre medley relay, and long course 4×100 metre mixed freestyle relay. He is the Oceanian and Australian record holder in the short course 50 metre butterfly and 50 metre freestyle.
Blake John Pieroni is a three-time Olympic gold medalist in swimming. He is a two time Olympian and gold medalist in the 4×100-meter freestyle relay at both the 2016 Summer Olympics and the 2020 Summer Olympics. On the relay in 2016, he swam in the prelims of the race, on the 2020 Olympics 4×100-meter freestyle relay he swam in both the prelims and the final. He also won a gold medal in the 4x100-meter medley relay at the 2020 Olympic Games, swimming the freestyle leg of the relay in the prelims.
Ariarne Elizabeth Titmus, is an Australian swimmer. She is the reigning Olympic champion in the women's 200-metre and 400-metre freestyle, having won both events at the 2020 Summer Olympics, the world record holder in the long course 400-metre freestyle, and formerly the world record holder in the short course 400-metre freestyle. In 2019 and 2020, she competed representing the Cali Condors in the International Swimming League.
The women's 100 metre freestyle event at the 2020 Summer Olympics was held from 28 to 30 July 2021 at the Tokyo Aquatics Centre. It was the event's twenty-fifth consecutive appearance, having been held at every edition since 1912.
The men's 4 × 100 metre freestyle relay event at the 2020 Summer Olympics was held on 25 and 26 July 2021 at the Tokyo Aquatics Centre. It was the thirteenth appearance of the event, which has been held from 1964 to 1972 and then at every Games since 1984.
The men's 4 × 200 metre freestyle relay event at the 2020 Summer Olympics was held on 27 and 28 July 2021 at the Tokyo Aquatics Centre. It will be the event's twenty-sixth consecutive appearance, having been held at every edition since 1908.
The women's 4 × 200 metre freestyle relay event at the 2020 Summer Olympics was held in 2021 at the Tokyo Aquatics Centre. It was the event's seventh consecutive appearance, having been held at every edition since 1996.
The men's 4 × 100 metre medley relay event at the 2020 Summer Olympics was held on 30 July and 1 August 2021 at the Tokyo Aquatics Centre. It was the event's sixteenth consecutive appearance, having been held at every edition since 1960.
The mixed 4 × 100 metre medley relay event at the 2020 Summer Olympics was held in 2021 at the Tokyo Aquatics Centre. These Games marked the first time to feature a mixed-gender swimming event in the program. Each 4-person team features two male and two female swimmers in no particular order.
Zachary "Zach" Douglas Apple is a retired American competitive swimmer who specializes 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.
