The FINA World Junior Swimming Championships is a swimming championship event organized by FINA for girls aged 14–17 and boys aged 15–18 on 31 December of the year of the competition. It is held biennially, and has been held since 2006.
The first world record in the women's 800 metres freestyle in long course (50 metres) swimming was recognised by the International Swimming Federation (FINA) in 1931. The women's 880 yard freestyle had been a FINA-recognised world record event since 1919. However, in 1931 FINA decreed that only performances from 1931 onward would be eligible for world record consideration in the 800 metres freestyle. Thus Helene Madison's 1930 world record of 11:41.2 in the 880 yard freestyle was not considered a world record in the 800 metres freestyle even though it was over a longer distance and substantially faster than Yvonne Godard's 1931 world record of 12:18.8 in the 800 metres freestyle. In 1933, Lenore Kight swam the 880 yard freestyle in 11:44.0, which FINA recognised as a world record in the 800 metres freestyle but not in the 880 yard freestyle. This irregularity was finally resolved in 1935, when Kight's 11:34.4 in the 880 yard freestyle broke the records for both the 880 yard freestyle and the 800 metres freestyle. Because of this situation, the world records for the 880 yard freestyle for women from 1919 to 1930 are included below.
This article includes the world record progression for the 4×200 metres freestyle relay, and it shows the chronological history of world record times in that competitive swimming event. The 4×200 metres freestyle relay is a relay event in which each of four swimmers on a team swims a 200-metre freestyle leg in sequence. The world records are recognized by and maintained by FINA, the international competitive swimming and aquatics federation that oversees the sport in international competition.
The heats for the men's 50 metre freestyle race at the 2009 World Championships took place on 31 July and 1 August 2009 (final) at the Foro Italico in Rome, Italy.
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.
Mathieu Gilles Marquet is a Mauritian swimmer.
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.
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.
Ryan Held is an American freestyle swimmer who specializes in the sprint events, and is currently sponsored by Arena. He holds the U.S. Open record in the long course 100 meter freestyle and three world records in short course relay events. At the 2016 Summer Olympics he won a gold medal in the 4×100 meter freestyle relay, swimming in both the prelims and the final of the event. In 2021, he won silver medals in the 50 meter freestyle and the 100 meter freestyle at the 2021 World Short Course Championships. At his first FINA World Aquatics Championships, the 2022 World Aquatics Championships, he won a gold medal in the 4×100 meter freestyle relay.
Szebasztián Szabó is a Hungarian swimmer. He is a world record holder in the short course 50 metre butterfly. He competed in the men's 50 metre butterfly event at the 2017 World Aquatics Championships representing Serbia. In 2019, Szabó was member of the 2019 International Swimming League representing Team Iron. The same year he chose represent Hungary in the future, which was granted by FINA.
Zachary "Zach" Douglas Apple is an American competitive swimmer who specializes in the sprint freestyle events. He currently swims 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.
Kieran Smith is an American swimmer specializing in freestyle and individual medley events. He is the American record and US Open record holder in the 500 yard freestyle. He won a gold medal in the 4×200 meter freestyle relay at the 2022 World Aquatics Championships. At the 2021 World Short Course Championships, Smith won a gold medal and set an American record as part of the 4×200 metre freestyle relay. He competed at the 2020 Summer Olympics, winning the bronze Olympic medal in the 400 meter freestyle, placing sixth in the 200 meter freestyle and fourth in the 4×200 meter freestyle relay. At the 2017 FINA World Junior Swimming Championships, he won the silver medal in the 200 meter individual medley. He competes collegiately for the Florida Gators.
Pieter Coetze is a South African swimmer. He is the African record holder in the long course 100 metre backstroke. At the 2022 Commonwealth Games, he won the gold medal in the 100 metre backstroke, the silver medal in the 50 metre backstroke, and the bronze medal in the 200 metre backstroke. At the 2022 World Junior Championships he competed in ten events, including winning the gold medal in the 200 metre backstroke, silver medals in the 50 metre backstroke, 100 metre backstroke, and the 4×100 metre medley relay, as well as a bronze medal in the 4×100 metre mixed medley relay.
Youssef Ramadan is an Egyptian swimmer. He is an African record holder in the short course 4×50 metre medley relay and 4×100 metre medley relay, where he swam butterfly on both relays. He competed at the 2020 Summer Olympics in the 100 metre butterfly where he placed 16th in the semifinals. At the 2021 FINA World Short Course Swimming Championships he placed fourth in the 100 metre butterfly, fifth in the 4×50 metre medley relay, 12th in the 4×100 metre medley relay, 13th in the 4×100 metre freestyle relay, and 13th in the 100 metre freestyle.
Trenton Jeffrey Julian is an American competitive swimmer. He is an American record holder in the short course 4×200 meter freestyle relay. He won a gold medal in the 4×200 meter freestyle relay at the 2019 World University Games. At the 2021 World Short Course Championships he won gold medals in the 4×200 meter freestyle relay and 4×50 meter medley relay and a silver medal in the 4×100 meter medley relay, swimming butterfly on the medley relays. He won a gold medal in the 4×200 meter freestyle relay, a silver medal in the 4×100 meter medley relay, and placed sixteenth in the 200 meter butterfly at the 2022 World Aquatics Championships.
