Sarah Fredrika Sjöström is a Swedish competitive swimmer specialising in the sprint freestyle and butterfly events. She is the current world record holder in the 50-meter freestyle, the 100-meter freestyle, the 50-meter butterfly, the 100-meter butterfly, and the 4×50-meter medley relay. She is a former world record holder in the 50-meter freestyle, 100-meter freestyle, 100-meter butterfly, and 200-meter freestyle. She is the first Swedish woman to win an Olympic gold medal in swimming. She won the Overall Swimming World Cup in 2017 and 2018 and she has won 10 individual World Championship gold medals. She currently represents Energy Standard in the International Swimming League.
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.
The FINA/ARENA Swimming World Cup 2008 was held in October and November 2008. The meet scheduling matched that of the 2007 series, with all meets held short course metres (25 m) format.
Nicholas Araújo Dias dos Santos is a Brazilian competitive swimmer who specializes in freestyle and butterfly sprint events. He swims for Esporte Clube Pinheiros. He swam the 50-metre freestyle at the 2008 Summer Olympics and was a member of the Brazilian 4×100-meter freestyle team at the 2012 Summer Olympics. At the 50-metre butterfly, he is the World Record holder in Short Course, and he was the Americas Record Holder in Long Course.
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.
Chad Guy Bertrand le Clos, OIS is a South African competitive swimmer who is an Olympic, World and Commonwealth Games champion as well as the Commonwealth record holder in the 50 and 100-metre butterfly. He is a former world record holder in the short course 100-metre butterfly and 200-metre butterfly. He won gold in the 200-metre butterfly and silver in the 100-metre butterfly in the 2012 Olympics in London, as well as silver medals in the 200-metre freestyle and 100-metre butterfly in the 2016 Summer Olympics. He also won five medals at the 2010 Summer Youth Olympics in Singapore. Le Clos has won the Overall Swimming World Cup four times: 2011, 2013, 2014, and 2017. In 2018, Le Clos claimed three gold medals in the 50m, 100m and 200m butterfly events at the Commonwealth Games. He also placed second in the 100m freestyle and third, along with teammates Cameron van der Burgh, Calvyn Justus and Brad Tandy, in the 4x100 medley relay. With another win in the 200m butterfly, Le Clos made history by becoming the first man to win three consecutive 200m butterfly Commonwealth titles.
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 and 200-meter butterfly events. At the 2016 Summer Olympics, Shields won a gold medal in the 4x100-meter medley relay for 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. For the 2020 Summer Olympics, he swam the butterfly leg of the 4x100-meter medley relay in the prelims, and won a gold medal in the event when the finals relay finished in first place. At the Kazan stop of the 2021 FINA Swimming World Cup, Shields was the one and only swimmer representing the United States to compete in the international swimming competition, winning two gold medals and one silver medal in individual events. For the whole 2021 World Cup, Shields was the highest scoring American competitor and second-highest scoring male competitor.
Vladimir Viktorovich Morozov is a Russian competitive swimmer and Olympic medalist. He is the former world record holder in the short course 100-metre individual medley, the current textile world record, 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.
Daiya Seto is a Japanese professional swimmer who specializes in individual medley, butterfly, breaststroke, and freestyle events. He won the gold medal in the 400-metre individual medley at the 2012, 2014, 2016, 2018, and 2021 world short course championships, as well as at the 2013, 2015, and 2019 world long course championships. Seto holds the world records in the short course 200-metre butterfly and the 400-metre individual medley.
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 twelve medals, including eight gold, at the 2014 Glasgow and 2018 Gold Coast Commonwealth Games.
The 2015 FINA Swimming World Cup was a series of eight, two-day, long course swimming meets in eight different cities between August and November 2015. Airweave was the title sponsor for the series, with Omega serving as official timer. This was the first World Cup edition held in a long-course pool, allowing swimmers to prepare for next year's Olympics, which are also held in long course.
Kyle Chalmers, is an Australian competitive swimmer who specialises in freestyle and butterfly events. He is the world record holder in the short course 100 metre freestyle. He is also the Oceanian record and the Australian record holder in the short course 50 metre butterfly and 50 metre freestyle events. He was the 2016 Olympic champion in Rio de Janeiro in the 100 metre freestyle, winning the gold medal in world junior record time. He won his second Olympic medal in the 100 metre freestyle Olympic Games event at the 2020 Tokyo Olympics, winning the silver medal with a time of 47.08 in the final. He also won a silver medal at the 2019 World Aquatics Championships in Gwangju in the 100 metre freestyle.
Michael 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.
This article includes the world record progression for the 4×50 metres freestyle relay and it shows the chronological history of world record times in that competitive short course swimming event. The 4×50 metres freestyle relay is a relay event in which each of four swimmers on a team swims a 50-metre freestyle leg in sequence. The world records are recognized by and maintained by FINA, the international competitive swimming and aquatics federation that overseas the sport in international competition.
The 2016 FINA Swimming World Cup was a series of nine two-day meets in nine different cities between August and October 2016. After switching to long-course pools in the previous year's pre-Olympic season, this edition returned to the usual short-course format. Like the previous short course World Cup in 2014, 36 events were scheduled. The total amount of prize money was US$ 2,178,000. The first meet started 13 days after the final day of the Olympic pool swimming program.
The 2017 FINA Swimming World Cup was a series of eight two-day meets in eight different cities between August and November 2017. This edition was held in the usual short-course format. Like the previous short course World Cup in 2016, 36 events were scheduled.
Ilya Syarheyevich Shymanovich is a Belarusian swimmer. He is the world record holder in the short course 100 metre breaststroke and a former world record holder in the short course 50 metre breaststroke. At the 2018 World Championships he won two silver medals, one each in the 100 metre breaststroke and the 50 metre breaststroke. He won two gold medals, one in the 50 metre breaststroke and one in the 200 metre breaststroke, and a silver medal, in the 100 metre breaststroke, at the 2021 European Short Course Championships. At the 2021 World Short Course Championships he won the gold medal in the 100 metre breaststroke.
The 2019 FINA Swimming World Cup was a series of seven three-day meets in seven different cities between August and November 2019. This edition was held in the long course format.
Daniil Dmitrievich Markov is a Russian competitive swimmer. He is a former world junior record holder in the 4×100 metre medley relay. At the 2018 Summer Youth Olympics he won three gold medals and three silver medals. He he also won a gold medal and a silver medal at different European Short Course Swimming Championships. At the 2018 European Junior Swimming Championships he won two gold medals and one bronze medal. He won one gold medal, one silver medal, and one bronze medal in freestyle relay events at the 2021 World Short Course Championships.
