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 women's 50 metre breaststroke event in swimming at the 2013 World Aquatics Championships took place on 3–4 August at the Palau Sant Jordi in Barcelona, Spain.
The Men's 50 metre breaststroke competition at the 2017 World Championships was held on 25 and 26 July 2017.
The Men's 50 metre freestyle competition at the 2019 World Championships was held on 26 and 27 July 2019. Caeleb Dressel finished first in the final, retaining the title he won in the previous Championships.
The Men's 100 metre freestyle competition at the 2019 World Championships was held on 24 and 25 July 2019.
The Men's 50 metre backstroke competition at the 2019 World Championships was held on 27 and 28 July 2019.
The Men's 200 metre backstroke competition at the 2019 World Championships was held on 25 and 26 July 2019.
The Men's 50 metre breaststroke competition at the 2019 World Championships was held on 23 and 24 July 2019.
The Men's 200 metre breaststroke competition at the 2019 World Championships was held on 25 and 26 July 2019.
The Men's 50 metre butterfly competition at the 2019 World Championships was held on 21 and 22 July 2019. The defending champion Ben Proud finished 7th in the final. The winner, Caeleb Dressel, set a competition record in the final, winning in 22.35 seconds.
The Men's 100 metre butterfly competition at the 2019 World Championships was held on 26 and 27 July 2019. The defending champion Caeleb Dressel broke Michael Phelps' ten-year-old record by 0.32 second in the semi-final, setting a new world-record time of 49.50 seconds. Dressel won the final held the following day, defending his title.
The Men's 200 metre butterfly competition at the 2019 World Championships was held on 23 and 24 July 2019. The event was won by Kristóf Milák, who broke a 10-year-old record set by Michael Phelps, and set a new world-record time of 1:50.73 in the process.
The Men's 200 metre individual medley competition at the 2019 World Championships was held on 24 and 25 July 2019.
The Women's 100 metre freestyle competition at the 2019 World Championships was held on 25 and 26 July 2019.
The Women's 50 metre backstroke competition at the 2019 World Championships was held on 24 and 25 July 2019.
The Women's 50 metre breaststroke competition at the 2019 World Championships was held on 27 and 28 July 2019.
The Women's 50 metre butterfly competition at the 2019 World Championships was held on 26 and 27 July 2019.
The Women's 200 metre butterfly competition at the 2019 World Championships was held on 24 and 25 July 2019.
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.
Benedetta Pilato is an Italian swimmer. She is European champion and holder of the world record in the long course 50 metre breaststroke. She competed at the 2020 Summer Olympics, in the 100 metre breaststroke. At the 2021 World Short Course Championships she won a silver medal in the 100 metre breaststroke.
