The men's 50 metre freestyle event at the 2020 Summer Olympics was held from 30 July to 1 August 2021 at the Olympic Aquatics Centre. It will be the event's tenth appearance, first held in 1904 and then at every edition since 1988. The event is nicknamed the "splash and dash" event.
The men's 100 metre freestyle event at the 2020 Summer Olympics was held from 27 to 29 July 2021 at the Tokyo Aquatics Centre. There were approximately 60 competitors from approximately 45 nations, with the ultimate numbers determined through the ongoing selection process, including universality places.
The men's 200 metre freestyle event at the 2020 Summer Olympics was held from 25 to 27 July 2021 at the Tokyo Aquatics Centre. There were 39 competitors from 30 nations, with the ultimate numbers determined through the ongoing selection process, including universality places.
The women's 50 metre freestyle event at the 2020 Summer Olympics was held from 30 July to 1 August 2021 at the Olympic Aquatics Centre. It was the event's ninth consecutive appearance, having been held at every edition since 1988.
The women's 100 metre freestyle event at the 2020 Summer Olympics was held from 28 to 30 July 2021 at the Tokyo Aquatics Centre. It was the event's twenty-fifth consecutive appearance, having been held at every edition since 1912.
The women's 200 metre freestyle event at the 2020 Summer Olympics was held from 26 to 28 July 2021 at the Tokyo Aquatics Centre. It was the event's fourteenth consecutive appearance, having been held at every edition since 1968.
The men's 100 metre backstroke event at the 2020 Summer Olympics was held from 25 to 27 July 2021 at the Tokyo Aquatics Centre. It was the event's twenty-sixth appearance, having been held at every edition since 1904 except 1964. Moreover, these Games marked the first time when the men's sprint backstroke event was held in Tokyo, as the event was not included in the swimming program in 1964.
The men's 200 metre backstroke event at the 2020 Summer Olympics was held from 28 to 30 July 2021 at the Tokyo Aquatics Centre. There will be approximately 30 competitors from approximately 20 nations, with the ultimate numbers determined through the ongoing selection process, including universality places.
The women's 100 metre backstroke event at the 2020 Summer Olympics was held from 25 to 27 July 2021 at the Tokyo Aquatics Centre. It was the event's twenty-third consecutive appearance, having been held at every edition since 1924. An unusual occurrence happened where the Olympic record for this event was broken three times in a single day and five times through the course of the entire competition.
The women's 200 metre backstroke event at the 2020 Summer Olympics was held from 29 to 31 July 2021 at the Tokyo Aquatics Centre. It will be the event's fourteenth consecutive appearance, having been held at every edition since 1968.
The men's 100 metre breaststroke event at the 2020 Summer Olympics was held from 24 to 26 July 2021 at the Tokyo Aquatics Centre. It will be the event's fourteenth consecutive appearance, having been held at every edition since 1968.
The men's 200 metre breaststroke event at the 2020 Summer Olympics was held from 27 to 29 July 2021 at the Tokyo Aquatics Centre. It was the event's twenty-sixth consecutive appearance, having been held at every edition since 1908.
The women's 100 metre breaststroke event at the 2020 Summer Olympics was held from 25 July to 27 July 2021 at the Tokyo Aquatics Centre. It was the event's fourteenth consecutive appearance, having been held at every edition since 1968.
The women's 200 metre breaststroke event at the 2020 Summer Olympics was held from 28 to 30 July 2021 at the Tokyo Aquatics Centre. It was the event's twenty-third consecutive appearance, having been held at every edition since 1924.
The men's 200 metre butterfly event at the 2020 Summer Olympics was held in 2021 at the Tokyo Aquatics Centre. It was the event's seventeenth consecutive appearance, having been held at every edition since 1956.
The women's 100 metre butterfly event at the 2020 Summer Olympics was held from 24 to 26 July 2021 at the Tokyo Aquatics Centre. It will be the event's seventeenth consecutive appearance, having been held at every edition since 1956.
The women's 200 metre butterfly event at the 2020 Summer Olympics was held from 27 to 29 July 2021 at the Tokyo Aquatics Centre. It was the event's fourteenth consecutive appearance, having been held at every edition since 1968.
The men's 200 metre individual medley event at the 2020 Summer Olympics was held from 28 to 30 July 2021 at the Tokyo Aquatics Centre. It was the event's twelfth appearance, having been first held in 1968 and 1972 and then at every edition since 1984.
The men's 400 metre individual medley event at the 2020 Summer Olympics was held on 24 and 25 July 2021 at the Tokyo Aquatics Centre. It will be the event's fifteenth consecutive appearance, having been held at every edition since 1964.
The women's 200 metre individual medley event at the 2020 Summer Olympics was held from 26 to 28 July 2021 at the Tokyo Aquatics Centre. It will be the event's twelfth appearance, having been first held in 1968 and 1972 and then at every edition since 1984.
