Nathan Ghar-jun Adrian is an American competitive swimmer and five-time Olympic gold medalist who formerly held the American record in the long course 50-meter freestyle event.
Jessica Adele Hardy Meichtry is an American competitive swimmer who specializes in breaststroke and freestyle events. Hardy earned a bronze medal in the 4×100-meter freestyle and a gold medal in the 4×100-meter medley relays at the 2012 Summer Olympics.
Sun Yang is a Chinese Olympic and world-record-holding competitive swimmer. In 2012, Sun became the first Chinese athlete to win an Olympic swimming gold medal. Sun is the first male swimmer in history to earn Olympic and World Championship gold medals at every freestyle distance from 200 to 1500 metres. A three-time Olympic gold medalist and eleven-time world champion, he is the most decorated Chinese swimmer in history. In 2017, NBC Sports described him as "arguably the greatest freestyle swimmer of all time".
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.
The men's 400 metre freestyle event at the 2012 Summer Olympics took place on 28 July at the London Aquatics Centre in London, United Kingdom.
Hali Flickinger is an American professional swimmer who specializes in freestyle, butterfly, and individual medley events. She represents the Cali Condors of the International Swimming League.
Mackenzie James Horton is an Australian freestyle swimmer. He is an Olympic gold medallist, World Championships medallist, and Commonwealth Games medallist. At the 2016 Olympic Games in Rio de Janeiro, Brazil, he finished first in the 400m freestyle, winning his first gold medal and became the first male swimmer from the state of Victoria to do so in the Games' history.
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.
The women's 4 × 200 metre freestyle relay event at the 2020 Summer Olympics was held in 2021 at the Tokyo Aquatics Centre. It was the event's seventh consecutive appearance, having been held at every edition since 1996.
The Men's 200 metre freestyle competition at the 2019 World Championships was held on 22 and 23 July 2019. Sun Yang was the defending champion, and defended his title. Lithuania's Danas Rapšys finished first, but was disqualified for flinching just before the start. During the medal ceremony, Great Britain's Duncan Scott refused to shake hands with China's Sun Yang, with Sun Yang calling Scott a "loser" in response.
The Women's 1500 metre freestyle competition at the 2019 World Championships was held on 22 and 23 July 2019. The defending champion was Katie Ledecky, but she was forced to withdraw due to illness.
Zachary "Zach" Douglas Apple is a retired American competitive swimmer who specializes in the sprint freestyle events. He used to swim 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.
Claire Curzan is an American swimmer. She is a world junior record holder in the long course 50 meter freestyle and 100 meter butterfly and the short course 50 meter butterfly and 100 meter butterfly. She is an American record holder in the short course 50 meter backstroke and 50 meter butterfly and formerly held the American record in the 100 yard butterfly. As a 15-year-old at the 2019 World Junior Championships, she won medals in three individual events, silver in the 100 meter backstroke and bronze in the 50 meter and 100 meter butterfly. At the 2020 Summer Olympics she won a silver medal in the 4×100 meter medley relay for her contribution swimming the butterfly leg of the relay in the prelims and in her individual event, the 100 meter butterfly, she placed tenth. At the 2021 World Short Course Championships, she won bronze medals in the 50 meter butterfly and 100 meter butterfly. In 2022, she won a bronze medal in the 100 meter backstroke at the 2022 World Aquatics Championships and silver medals in the 50 meter backstroke and 200 meter backstroke as well as a bronze medal in the 100 meter backstroke at the 2022 World Short Course Championships.
Hwang Sun-woo is a South Korean swimmer.
Ahmed Ayoub Hafnaoui is a Tunisian swimmer. He is the African record holder in the short course 800-metre freestyle and 1500-metre freestyle. He competed in the 2020 Summer Olympics, where he won a gold medal in the men's 400-metre freestyle. He ranked No. 16 in the world and was the slowest qualifier for the final race but won Olympic gold with a time of 3:43.36. Hafnaoui was the only Tunisian to win Olympic gold at Tokyo 2020.
