Grant George Hackett OAM is an Australian swimmer, most famous for winning the men's 1500 metres freestyle race at both the 2000 Summer Olympics in Sydney and the 2004 Summer Olympics in Athens. This achievement has led him to be regarded as one of the greatest distance swimmers in history. He also collected a gold medal in Sydney for swimming in the heats of the 4 × 200 m freestyle relay. He was well regarded for his versatility, and has held the long course world records in the 200 m, 800 m, and 1500 m freestyle events. He dominated the 1500 m event for a decade, being undefeated in the event in finals from 1996 until the 2007 World Aquatics Championships. In total, he has won 10 long-course world championship gold medals.
Paweł Korzeniowski is a Polish competitive swimmer who won the 200-meter butterfly at the 2005 World Aquatics Championships in Montreal. He also competes in the freestyle events.
Massimiliano "Massi" Rosolino is an Italian retired competitive swimmer.
Oussama "Ous" Mellouli is a Tunisian swimmer who competes in the freestyle and medley events. He is a three-time Olympic medalist, is an African record holder, and trains with the USC Trojans team based at the University of Southern California, where he studied as a computer science undergraduate and swam collegiately.
Thiago Machado Vilela Pereira is a retired Brazilian international competition swimmer. One of the greatest swimmers in the history of Brazil, Pereira won the silver medal in the 400-meter individual medley at the 2012 Summer Olympics in London, beating the then-current Olympic champion Michael Phelps. He also broke a world record in the short course 200-meter individual medley, and broke several South American and Brazilian records. During his career, he competed with swimming legends Michael Phelps and Ryan Lochte.
Park Tae-hwan is a South Korean competitive swimmer who is an Olympic gold medalist and world champion. He has four Olympic medals, five world titles, and 20 Asian Games medals. He won a gold medal in the 400-meter freestyle and a silver in the 200-meter freestyle events at the 2008 Summer Olympics. He also won two silver medals at the 2012 Summer Olympics in the 200- and 400-meter freestyle. He is the first Asian swimmer to claim a gold medal in the men's 400-meter freestyle, and the first-ever South Korean swimmer to win any Olympic medal in swimming. He also holds 3 Asian Records, all in Men's Freestyle. He is best known for his impressive range and versatility, as he is able to compete at international level in 100-, 200-, 400- and 1,500-meter freestyle.
Kirsten Cameron, born 1973 in Masterton, is a former New Zealand Distance freestyle and open water swimmer and a world record holder in Masters swimming in the 30-34, 35-39 and 40-44 age groups. She was the 2009 national inaugural champion for women's 10 km open-water swim. Kirsten started competitive swimming in 2004.
The 11th FINA World Swimming Championships (25m) was held in Istanbul, Turkey on 12–16 December 2012. This swimming-only championships took place in the Sinan Erdem Dome; all events were swum in a 25-meter (short-course) pool.
Ryan Andrew Cochrane is a retired Canadian competitive swimmer who specialised in freestyle distance events. Cochrane is an Olympic silver and bronze medallist as well as a triple gold medallist from the Pan Pacific Swimming Championships. He is also a four-time Commonwealth Games champion in the 400-metre and 1,500-metre having won both medals in 2010 and 2014. He holds six world championship medals from the 800-metre and 1500-metre, this also makes Cochrane Canada's all-time leading medallist for a swimmer at the World Aquatics Championships. Cochrane also won gold medals in the 400 and 1,500 m freestyle at the 2015 Pan American Games in Toronto, as well as a bronze in the 4 x 200 m freestyle at the 2015 Games. From the year 2008 - 2015, Cochrane was named the Canadian male swimmer of the year - winning the award 8 times in a row.
Mads Glæsner is a Danish swimmer. He participated at the 2008 Summer Olympics in the 400 metre freestyle and the 1500 metre freestyle disciplines. His swimming club is Vallensbæk-VAT but he trains at the National Training Center in Copenhagen.
Robert "Bobby" Hurley is an Australian swimmer and former World Record holder in the short-course 50 metres Backstroke and 2012 World Champion in the same event. In 2009 he won a bronze medal as a team member on the 4 × 200 m Freestyle relay at the FINA World Championships in Rome. He has five FINA World Championship medals to his name, two gold, one silver and two bronze.
Pál Joensen is a Faroese elite swimmer. He was born in Vágur, Suðuroy, Faroe Islands. He has won World and European Championship medals. His bronze medal in the men's 1500 metre freestyle at the 2012 FINA World Swimming Championships in Istanbul was the first medal won by a Faroese swimmer at the World Aquatic Championships.
Yannick Agnel is a French former competitive swimmer who specializes in freestyle events, and is a three-time Olympic medalist. In his Olympic debut at the 2012 Summer Olympics in London, he won gold in the 200-meter freestyle, gold in the 4×100-meter freestyle relay, and silver in the 4×200-meter freestyle relay. He is the current world record holder in the 400-meter freestyle, the European record holder in the 800-meter freestyle, and the national record holder in the 200- and 400-meter freestyle.
Gregorio Paltrinieri is an Italian competitive swimmer. He is a former world record holder in the short course 1500 metre freestyle. He holds the European record in the long course 800 metre and 1500 metre freestyle events with times of 7:39.27 and 14:32.80, respectively. In the 1500 metre freestyle, he is a 2016 Olympic, three-time world long course, two-time world short course, three-time European long course, and three-time European short course champion. In the 800 metre freestyle, he is a 2019 world long course, 2022 world short course, three-time European long course, and 2021 European short course champion. In the 10 kilometre open water swim, he is a 2022 world and 2020 European champion. In the 5 kilometre open water swim, he is a two-time European champion.
Matthew Stanley is a New Zealand swimmer. His home town is Matamata. At the 2012 Summer Olympics he competed in the men's 400 metre freestyle, finishing in 15th place in the heats, failing to reach the final.
The men's 1500 metre freestyle event at the 11th FINA World Swimming Championships (25m) took place 16 December 2012 at the Sinan Erdem Dome. This event was a timed-final where each swimmer swam just once. The top 8 seeded swimmers swam in the evening, and the remaining swimmers swam in the morning session.
The men's 400 metre freestyle event at the 11th FINA World Swimming Championships (25m) took place 14 December 2012 at the Sinan Erdem Dome.
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.
Li Bingjie is a Chinese swimmer. She is the world record holder in the short course 400 metre freestyle. She is also the Asian record holder in the long course 400 metre freestyle as well as the short course 1500 metre freestyle. She is the 2021 World Short Course champion in the 400 metre freestyle and 800 metre freestyle. At the 2020 Summer Olympics, she won a gold medal in the 4×200 metre freestyle relay and a bronze medal in the 400 metre freestyle.
Guilherme Pereira da Costa is a Brazilian swimmer. He is the 400m freestyle bronze medalist at the 2022 World Championships. In the 1500 metre freestyle, he is the gold medalist at the 2019 Pan American Games. He is also currently the South American record holder in the 400, 800, and 1500 metre freestyle.
Poland 
