The men's 200-metre butterfly event at the 2001 World Aquatics Championships took place between 23 July – 24 July. Both the heats and semifinals were held on 23 July with the heats being held in the morning session and the semifinals being held in the evening session. The final was held on 24 July.
The men's 100 metre freestyle event at the 2001 World Aquatics Championships took place 27 July. The heats and semifinals were held on 26 July.
The men's 50 metre backstroke event at the 2001 World Aquatics Championships took place 25 July. The heats and semifinals took place 24 July, with the final being held on 25 July.
Emma Jennifer McKeon, is an Australian competitive swimmer. She is an eight-time world record holder, three current and five former, in relays. Her total career haul of 11 Olympic medals following the 2020 Olympic Games made her Australia's most decorated Olympian and included one gold medal from the 2016 Summer Olympics in Rio de Janeiro and four gold medals from the 2020 Summer Olympics in Tokyo. With four gold and three bronze medals she was the most decorated athlete across all sports at the 2020 Summer Olympics, and tied for the most medals won by a woman in a single Olympic Games. She has also won 20 medals, including five gold medals, at the World Aquatics Championships; and a record 20 medals, including 14 gold, at the Commonwealth Games.
David Popovici is a Romanian competitive swimmer who specializes in freestyle events. He is the current holder of the world record in the long course 100-metre freestyle and the junior world record in the long course 200-metre freestyle. He also holds the junior world record in the short course 100-metre freestyle. At the 2022 World Aquatics Championships, Popovici won gold medals in his two signature events, becoming the first swimmer to do so at the same edition of the World Championships, since Jim Montgomery in 1973. Following his performances during the 2022 long course season, in which he won eleven gold medals and two silver medals, Popovici was voted Male Swimmer of the Year by both SwimSwam and Swimming World Magazine. During that summer, he established an unprecedented level of dominance, especially in the long course 100-metre freestyle, recording 13 of the 19-fastest swims in the world in 2022, while also becoming only the third swimmer in history to set an under 1:43 time in the long course 200-metre freestyle.
Kirill Strelnikov is a Russian competitive swimmer. He won a gold medal in the 4×50 metre medley relay at the 2021 World Short Course Championships and the 4×100 metre medley relay at the 2013 World University Games, swimming the breaststroke leg of both relays in the final. At the 2021 European Short Course Championships he won a bronze medal in the 4×50 metre mixed medley relay, swimming the breaststroke leg of the relay in the preliminaries.
The men's 50 metre breaststroke event at the 2001 World Aquatics Championships took place 29 July. The heats and semifinals took place 28 July, with the final being held on 29 July.
The men's 50 metre butterfly event at the 2001 World Aquatics Championships took place 28 July. The heats and semifinals took place 27 July, with the final being held on 28 July.
The women's 50 metre backstroke event at the 2001 World Aquatics Championships took place 24 July. The heats and semifinals took place 23 July, with the final being held on 24 July.
The women's 50 metre breaststroke event at the 2001 World Aquatics Championships took place 27 July. The heats and semifinals took place 26 July, with the final being held on 27 July.
The women's 50 metre butterfly event at the 2001 World Aquatics Championships took place 26 July. The heats and semifinals took place 25 July, with the final being held on 26 July.
The men's 100 metre butterfly event at the 2001 World Aquatics Championships took place 26 July. The heats and semifinals took place on 25 July, with the final being held on 26 July.
The men's 100 metre breaststroke event at the 2001 World Aquatics Championships took place 24 July. The heats and semifinals took place 23 July, with the final being held on 24 July.
The women's 100 metre breaststroke event at the 2001 World Aquatics Championships took place 23 July. The heats and semifinals took place 22 July, with the final being held on 23 July.
The women's 100 metre butterfly event at the 2001 World Aquatics Championships took place 28 July. The heats and semifinals took place 27 July, with the final being held on 28 July.
The men's 200 metre backstroke event at the 2001 World Aquatics Championships took place 27 July. The heats and semifinals took place 26 July, with the final being held on 27 July.
The men's 200 metre breaststroke event at the 2001 World Aquatics Championships took place 26 July. The heats and semifinals took place on 25 July, with the final being held on 26 July.
The women's 200 metre backstroke event at the 2001 World Aquatics Championships took place 26 July. The heats and semifinals took place on 25 July, with the final being held on 26 July.
The women's 200 metre butterfly event at the 2001 World Aquatics Championships took place 23 July. The heats and semifinals took place 22 July, with the final being held on 23 July.
The women's 200 metre individual medley event at the 2001 World Aquatics Championships took place 26 July. The heats and semifinals took place 25 July, with the final being held on 26 July.
