The World Aquatics Junior Swimming Championships is an international swimming championship event organized biennially by World Aquatics for swimmers aged 14–18 years as of 31 December of the year of the competition. It is usually held on odd years. Prior to 2023, the event was known as the FINA World Junior Swimming Championships and was open to female swimmers aged 14–17 and male swimmers aged 15–18 as of 31 December of the year of the competition.
Nicolas Fink is an American competitive swimmer. He is a five-time world champion in breaststroke events and a 2024 Olympic Silver Medalist in the 100 meter breaststroke. He is a world record holder in the short course 4×100 meter medley relay and 4×50 meter mixed medley relay. He is the Americas record holder in the short course 50 meter breaststroke, 100 meter breaststroke, and 200 meter breaststroke as well as the American record holder in the long course 50 meter breaststroke. In the 50 meter breaststroke, he won the World Short Course titles in 2021 and 2022 and World Long Course title in 2022. In the 100 meter breaststroke, he is the 2022 World Short Course gold medalist. In the 200 meter breaststroke, he is the 2021 World Short Course gold medalist.
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.
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.
Nicolò Martinenghi is an Italian swimmer and the reigning Olympic champion in the 100 metre breaststroke event, having won the gold medal at the 2024 Summer Olympics. He is a two-time world record holder in the 4×50 metre medley relay, swimming breaststroke on both relays. He is the Italian record holder in the 50 metre breaststroke and 100 metre breaststroke.
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.
Simone Cerasuolo is an Italian competitive swimmer. He is the world junior record holder in the short course 50 metre and 100 metre breaststroke events. In the 50 metre breaststroke, he won a gold medal at the 2021 European Junior Championships, the silver medal at the 2022 European Aquatics Championships, the bronze medal at the 2022 World Short Course Championships, and placed fifth at the 2022 World Aquatics Championships. In the 100 metre breaststroke, he won the bronze medal at the 2021 European Junior Championships and placed sixth in the final at the 2022 World Short Course Championships.
Kirill Strelnikov is a Russian competitive swimmer. He won a gold medal in the 4×50 metre medley relay at the 2021 World Short Course Championships and the 4×100 metre medley relay at the 2013 World University Games, swimming the breaststroke leg of both relays in the final. At the 2021 European Short Course Championships he won a bronze medal in the 4×50 metre mixed medley relay, swimming the breaststroke leg of the relay in the preliminaries.
The Men's 50 metre butterfly competition of the 2022 FINA World Swimming Championships was held on 13 and 14 December 2022.
The Men's 50 metre backstroke competition of the 2022 FINA World Swimming Championships was held on 15 and 16 December 2022.
The Women's 50 metre breaststroke competition of the 2022 FINA World Swimming Championships was held on 17 and 18 December 2022.
The Men's 50 metre backstroke competition of the 2024 World Aquatics Swimming Championships was held on 12 and 13 December 2024.
