Swimming at the 2020 Summer Olympics – Women's 100 metre backstroke

The women's 100 metre backstroke event at the 2020 Summer Olympics will be held in 2021 at the Tokyo Aquatics Centre.[1] It will be the event's twenty-third consecutive appearance, having been held at every edition since 1924.

Women's 100 metre backstroke
at the Games of the XXXII Olympiad
VenueTokyo Aquatics Centre
← 2016
2024 →


Prior to this competition, the existing world and Olympic records were as follows.

World record   Kaylee McKeown (AUS) 57.45 Adelaide, Australia 13 June 2021 [2]
Olympic record   Emily Seebohm (AUS) 58.23 London, United Kingdom 29 July 2012 [3]


The Olympic Qualifying Time for the event is 1:00.25. Up to two swimmers per National Olympic Committee (NOC) can automatically qualify by swimming that time at an approved qualification event. The Olympic Selection Time is 1:02.06. Up to one swimmer per NOC meeting that time is eligible for selection, allocated by world ranking until the maximum quota for all swimming events is reached. NOCs without a female swimmer qualified in any event can also use their universality place.[4]

Competition formatEdit

The competition consists of three rounds: heats, semifinals, and a final. The swimmers with the best 16 times in the heats advance to the semifinals. The swimmers with the best 8 times in the semifinals advance to the final. Swim-offs are used as necessary to break ties for advancement to the next round.[5]


All times are Japan standard time (UTC+9)[1]

Date Time Round
TBC 19:00 Heats
TBC 10:30 Semifinals
TBC 10:30 Final



The swimmers with the top 16 times, regardless of heat, advance to the semifinals.


The swimmers with the best 8 times, regardless of heat, advanced to the final.



  1. ^ a b "Tokyo 2020: Swimming Schedule". Tokyo 2020. Retrieved 30 January 2020.
  2. ^ News, ABC (13 June 2021). "Kaylee McKeown breaks 100m backstroke world record at Australian Olympic trials". Australian Broadcasting Corporation. Retrieved 13 June 2021.
  3. ^ "Seebohm breaks Olympic record". ABC News Australia. 29 July 2012. Retrieved 7 July 2013.
  4. ^ "Tokyo 2020 – FINA Swimming Qualification System" (PDF). Tokyo 2020. FINA. Retrieved 29 January 2020.
  5. ^ "FINA Swimming Rulebook, 2017–21" (PDF). FINA. Retrieved 29 January 2020.