You dont swim 25m at a competition.
The 25m race is not an official race, as an Olympic pool is 50 meters long.
Rowdy Gaines
Johnny Weissmuller broke the world record for the 100-yard freestyle swim at The Biltmore Hotel in 1927. He completed the swim in 48 seconds, setting a new record.
In John Knowles' novel "A Separate Peace," Phineas (Finny) breaks the school record for the 100-yard freestyle swim by completing it in 52 seconds. This achievement showcases Finny's athleticism and sets him apart from his peers at Devon School.
Ian Thorpe broke the world record in the 400m freestyle at the 2000 Sydney Olympics, winning the gold medal in a time of 3:40.59.
There were no Olympics held in 2009, however Rebecca Adlington won 2 medals at the 2008 Olympics the freestyle 400 m and freestyle 800 m, becoming the first British Olympic swimming champion since 1988 and the first British swimmer to win two Olympics golds since 1908. When she competed in the heats of the 400 m, she broke the Commonwealth record with a time of 4:02.24 and when she competed in the preliminary heats of the 800 m, she broke the British, Commonwealth, European and Olympic records with a time of 8:18.06 and broke the world record in the final with a time of 8:14.10.
Michael phelps- he broke the record of 8 medals
A total of 32 records were made in 100 meters freestyle swimming since Alan Ford made a world record of 55.4 seconds in 1948. His record was broken by Dick Cleveland who clocked 54.8 seconds in 1954. The current record of 46.91 seconds is held by Cesar Cielo of Brazil which he made in 2009.
Kosuke Kitajima, the Japanese guy who was champion for both 100 and 200m breaststroke olympic (Athens 2004 and Beijing 2008) 4 gold medals in breaststroke He broke the world record in 2008 Olympic, but then, the former world record holder who comes from Australia, Brenton Rickard broke his record for 100m breaststroke with a time of 58.58s in Rome Italy, which i believe should be the world tournament
Kathleen (Katie) Ledecky of the United States won the gold medal in the women's 400 m freestyle at the Rio 2016 Olympics.Her result was 3:56:46. She broke a world record and an Olympic record.
The winner of the gold medal in the women's 400 m freestyle at the Rio 2016 Olympics was the United States.Their athlete was Kathleen Ledecky, who also broke a world record and an Olympic record in the event.
Katie Ledecky (United States) won gold in Women's 800m Freestyle at the Rio 2016 Olympics. She broke the world record for the fifth time in this race with a time of 8:04.79. Ledecky smashed the Olympic record by 8.07 seconds and beat the silver medallist Jazz Carlin (Great Britain) by 11.38 seconds.
19-year-old Rebecca Adlington won 2 gold medals, one in the 800m freestyle (in which she also broke a 19-year old world record by 2 seconds), and the other in the 400m freestyle. Jo Jackson won bronze in the latter race as well.