Aaron Wells Peirsol is an American former competition swimmer and backstroke specialist who is a former world champion and world record-holder. He is a three-time Olympian and seven-time Olympic medalist. Individually, he currently holds the world record in the 200-meter backstroke event. In February 2011, Peirsol announced his retirement, saying, "I ended up doing everything I set out to do."
Peter Jeffrey Marshall is an American competition swimmer who specializes in the backstroke. He is a former world record holder in the 50-meter backstroke and the 100-meter backstroke.
Ryan Steven Lochte is an American professional swimmer and 12-time Olympic medalist. Along with Natalie Coughlin, Dara Torres, and Jenny Thompson, he is the second-most decorated swimmer in Olympic history measured by total number of medals, behind only Michael Phelps. Lochte's seven individual Olympic medals rank second in history in men's swimming, tied for second among all Olympic swimmers. He currently holds the world records in the 200-meter individual medley. As part of the American teams, he also holds the world record in the 4×200-meter freestyle and 4×100-meter freestyle (mixed) relay.
Matthew Grevers is an former American competition swimmer who competes in the backstroke and freestyle events, and is a six-time Olympic medalist. He has won a total of thirty-three medals in major international competition, fourteen gold, twelve silver, and seven bronze spanning the Olympics, World Championships, and the Universiade. At the 2008 Summer Olympics, Grevers won gold medals as a member of the U.S. teams in the 4×100-meter freestyle and 4×100-meter medley relays, and a silver medal in the 100-meter backstroke. Four years later, at the 2012 Summer Olympics, he won gold medals in the 100-meter backstroke and the 4×100-meter medley relay, and a silver medal in the 4×100-meter freestyle relay.
Brian Retterer is a retired American swimmer specialising in freestyle and backstroke events. He swam under Skip Kenney and Ted Knapp while at Stanford, and prior swam at Reno Aquatic Club in Sparks, Nevada.
Nicholas Brewer Thoman is an American competition swimmer who specializes in the backstroke and is an Olympic gold medalist. He has won two world championships as a member of winning United States medley relay teams at the FINA World Aquatics Championships. From 2009 to 2015 he held the world record in the 100-meter backstroke. Thoman has won a total of ten medals in major international competition, four gold, three silver, and three bronze spanning the Olympics, World Championships, Pan Pacific Championships, Pan American Games, and the Summer Universiade. He was a member of the 2012 U.S. Olympic team, and won gold and silver medals at the 2012 Summer Olympics.
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.
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.
Javier Carlos Acevedo is a Canadian competitive swimmer. He competes primarily in the backstroke events. Acevedo won two bronze medals at the 2017 World Aquatics Championships as part of both the mixed 4×100 m freestyle relay and the 4×100 m mixed medley relay. He has also won a gold medal at the 2015 FINA World Junior Swimming Championships in the 4×100 m mixed freestyle relay and a silver in the 50 m backstroke. Acevado was a former Junior world record holder in the 100 m backstroke event.
Simone Sabbioni is an Italian competitive swimmer and two-time Olympian who competed at the 2016 Olympics and the 2020 Olympics. He is a former Italian record holder in the short course 50 metre backstroke, 100 metre backstroke, 200 metre backstroke, 4×50 metre medley relay and the long course 100 metre backstroke.
Kristóf Milák is a Hungarian swimmer. He is the current holder of the world record in the long course 200 metre butterfly and the European record in the long course 100 metre butterfly. He also currently holds the Hungarian record in the short course 50 metre backstroke. At his first Olympic Games, the 2020 Summer Olympics, he won a gold medal in the 200 metre butterfly and a silver medal in the 100 metre butterfly. He has also won three gold medals and one silver at the World Aquatic Championships, as well as three gold medals at the European Aquatics Championships. He was the gold medalist in the 400 metre freestyle, 200 metre freestyle, and 200 metre butterfly events at the 2018 Summer Youth Olympics.
Regan Smith is an American competitive swimmer. As of 2022, Smith trains under Bob Bowman with the Arizona State University professional training group. She is the world junior record holder in the women's long course 100-meter backstroke and 200-meter backstroke and a former world record holder in the long course 100-meter backstroke and the 200-meter backstroke. She competed at the 2020 Summer Olympics in three events representing the United States, winning a bronze medal in the 100-meter backstroke, a silver medal in the 200-meter butterfly, and a silver medal in the 4×100-meter medley relay. At the World Aquatics Championships, she won individual gold medals in the 200-meter backstroke in 2019 and the 100-meter backstroke in 2022 and a relay gold medal swimming the backstroke leg of the 4x100 medley relay in 2023.
Kaylee Rochelle McKeown is an Australian swimmer and triple Olympic gold medalist. She is the world record holder in the long course 50 metre backstroke, 100 metre backstroke and both the long course and short course 200 metre backstroke. She won gold in both the 100 metre and 200 metre backstroke, as well as the 4×100 metre medley relay at the 2020 Summer Olympics staged in Tokyo in 2021. In 2023, she was named as the "Best Female Swimmer of the Year" by World Aquatics, after sweeping gold in all three events of backstroke at all three World Cup legs, held in Berlin, Athens and Budapest in October, 2023.
Hannah Margaret McNair "Maggie" Mac Neil is a Canadian competitive swimmer. A 100 metre butterfly event specialist, she is the 2020 Olympic champion, 2019 World (LC) champion, two-time World (SC) champion, 2022 Commonwealth champion, and 2023 Pan American champion. She holds the current Americas record (55.59s), the short course world record, the Commonwealth record, and Pan American record in the event.
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.
Michele Lamberti is a competitive Italian swimmer. He is a former world record holder in the short course 4×50-metre medley relay. He currently holds the Italian record in the short course 50-metre backstroke. At the 2021 European Short Course Championships he won a gold medal and set a world record in the 4×50-metre medley relay, won three silver medals, one in the 50-metre backstroke, one in the 100-metre butterfly, and one in the 4×50-metre mixed medley relay, and won a bronze medal in the 200-metre backstroke. At the 2021 World Short Course Championships he won two bronze medals in relay events, swimming in the preliminaries for each relay.
Sergey Geybel is a competitive Russian swimmer specializing in breaststroke events. He is a former world record holder in the 4×100-metre medley relay and the 4×50-metre medley relay. He won a gold medal at the 2008 World Short Course Championships as part of the world-record-setting finals relay team in the 4×100-metre medley relay. He also won two silver medals and one bronze medal over the course of his career in the 4×50-metre medley relay at the European Short Course Championships.
Lorenzo Mora is a competitive Italian swimmer. He is a world record holder in the short course 4×50 metre medley relay. He is the Italian record holder in the short course 100 metre backstroke and 200 metre backstroke. In the 50 metre backstroke, he won the silver medal at the 2021 World Short Course Championships and the bronze medal at the 2022 Mediterranean Games. In the 100 metre backstroke, he won the silver medal at each the 2022 World Short Course Championships and the 2022 Mediterranean Games. In the 200 metre backstroke, he won the bronze medal at the 2022 World Short Course Championships, the silver medal at the 2021 European Short Course Championships, and the gold medal at the 2022 Mediterranean Games.
Daniel Diehl is an American competitive swimmer. He win gold medalist in 4×100 m freestyle, 4×200 m freestyle, and 4×100 m medley with silver medalist in 200 m backstroke and 200 m individual medley in 2023 World Junior Championships. He is a world junior record holder in the long course 4×100 meter freestyle relay and the short course 4×50 meter mixed freestyle relay. At the 2022 Junior Pan Pacific Championships, he won gold medals in the 100 meter backstroke, 4×100 meter freestyle relay, 4×100 meter medley relay, and the 4×100 meter mixed medley relay.
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