Medley swimming is a combination of four different swimming strokes into one race. This race is either swum by one swimmer as individual medley (IM) or by four swimmers as a medley relay.
Natalie Anne Coughlin Hall is an American former competition swimmer and twelve-time Olympic medalist. While attending the University of California, Berkeley, she became the first woman ever to swim the 100-meter backstroke in less than one minute. At the 2008 Summer Olympics, she became the first U.S. female athlete in modern Olympic history to win six medals in one Olympiad, and the first woman ever to win a 100-meter backstroke gold in two consecutive Olympics. At the 2012 Summer Olympics, in her third and final Olympic appearance, she earned a bronze medal in the 4×100-meter freestyle relay.
Malin Therese Alshammar is a Swedish swimmer who has won three Olympic medals, 25 World Championship medals, and 43 European Championship medals. She is a specialist in short distances races in freestyle and butterfly. She is coached by former Swedish swimmer Johan Wallberg. She is the first female swimmer and the third overall to participate in six Olympic Games.
Blaž Medvešek is a former backstroke swimmer from Slovenia, who competed for his native country of Slovenia at the 2004 Summer Olympics in Athens, Greece as well as at 2000 Summer Olympics in Sydney, Australia. In his swimming career, he has represented Branik, Maribor and Ilirija, Ljubljana Swimming Clubs and achieved highest achievements while training in Ljubljana with coach Dimitrij Mancevič and team mate Peter Mankoč.
Sarah Fredrika Sjöström is a Swedish competitive swimmer specialising in the sprint freestyle and butterfly events and one of the most decorated swimmers of all time.
Guilherme Augusto Guido is a Brazilian backstroke swimmer who specializes in sprint events. He was twice a finalist in the 100 metre backstroke at World Championships
Thomas Allen Shields is an American competitive swimmer. He is a two-time Olympian and the current American record-holder in the short course 50-meter butterfly and 200-meter butterfly. At the 2016 Summer Olympics, he won a gold medal in the 4×100-meter medley relay, swimming the butterfly leg of the relay in the prelims. Later the same year, he became the first American to swim faster than 44 seconds in the 100-yard butterfly, setting a new American record of 43.84 seconds.
Vladimir Viktorovich Morozov is a retired Russian competitive swimmer and Olympic medalist. He is the former world record holder in the short course 100-metre individual medley, the current, World Cup record and Russian national record holder in the 100-metre individual medley and 100-metre freestyle, and Russian record holder in the 50-metre freestyle. He also holds the European record for the 100-metre individual medley. Formerly he held the Russian national record in the 50-metre backstroke and the 50-metre butterfly, and held the European and Russian records in the 50-metre breaststroke.
Kristian Tsvetanov Gkolomeev is a Greek swimmer. He specializes in sprint freestyle and butterfly events.
Etiene Pires de Medeiros is a Brazilian competitive swimmer who participates in backstroke and freestyle events. Widely regarded as the best Brazilian woman swimmer of all time, Medeiros was the first Brazilian to win an individual gold medal in a World Championship and Pan American Games, and the first to be a world record-holder in the modern era
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.
Louise Maria Hansson is a Swedish competitive swimmer, a member of Helsingborgs SS.
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.
Michael Charles Andrew is an American competitive swimmer and an Olympic gold medalist. He was the 2016 world champion in the 100 meter individual medley. At his first Olympic Games, the 2020 Summer Olympics, he won a gold medal and set a world record as part of the 4x100 meter medley relay, placed fourth in the 100 meter breaststroke, fourth in the 50 meter freestyle, and fifth in the 200 meter individual medley. Andrew's swims in 2021 at the 2020 Olympics made him the first swimmer to represent the United States at an Olympic Games in an individual breaststroke event as well as another individual event other than an individual medley in the then-125-year-history of swimming at the Summer Olympics. He has won 78 medals at Swimming World Cup circuits.
Rebecca Meder is a South African swimmer. She is the African record holder in the 100 metre individual medley and the South African record holder in the long course and short course 200 metre individual medley. At the 2022 World Short Course Championships, she placed sixth in the final of the 100 metre individual medley. In the 200 metre individual medley at the 2022 Commonwealth Games, she placed fourth in the final. At the 2021 African Championships, she won 11 gold medals, six in individual events and five in relay events, swimming on the finals relay for each of the five relay events.
Thomas Ceccon is an Italian swimmer. He is a world record holder in the long course 100 metre backstroke and the short course 4×100 metre freestyle relay. He is also the Italian record holder in the long course 50 metre backstroke and 50 metre butterfly. He is the 2022 World champion in the 100 metre backstroke and 2022 European champion in the 100 metre backstroke and 50 metre butterfly. In the 100 metre individual medley, he won the gold medal at the 2022 World Short Course Championships and the bronze medal at the 2021 World Short Course Championships. At the 2020 Summer Olympics, he won a silver medal in 4×100 metre freestyle relay, a bronze medal in the 4×100 metre medley relay, placed fourth in the 100 metre backstroke, and placed twelfth in the 100 metre freestyle. On 29 July 2024 he won gold for the 100m backstroke in the 2024 Summer Olympics.
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.
Shaine Casas is an American professional swimmer. He is an Americas record holder in the short course 4×50 meter medley relay, swimming the butterfly leg of the relay. At the 2021 World Short Course Championships, he won the gold medal in the 100-meter backstroke, a silver medal in the 200-meter backstroke, and placed seventh in the 50-meter backstroke. In 2022, at the year's World Aquatics Championships, he won the bronze medal in the 200-metre backstroke. Later in the year, at the 2022 World Short Course Championships, he won the silver medal in the 200-metre backstroke and placed fourth in the finals of the 100-meter individual medley and 200-meter individual medley.
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.
Slovenia 
United States), Stade Français Olympique Courbevoie (
France)
