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

The women's 100 metre breaststroke event at the 2020 Summer Olympics will be held in 2021 at the Tokyo Aquatics Centre.[1] It will be the event's fourteenth consecutive appearance, having been held at every edition since 1968.

Women's 100 metre breaststroke
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   Lilly King (USA) 1:04.13 Budapest, Hungary 25 July 2017 [2]
Olympic record   Lilly King (USA) 1:04.93 Rio de Janeiro, Brazil 8 August 2016 [3][4]


The Olympic Qualifying Time for the event is 1:07.07. 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 1:09.08. 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.[5]

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.[6]


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. ^ Brien, Taylor (25 July 2017). "Lilly King Stuns with 1:04.13 100 Breast World Record; Meili Second". Swimming World Magazine. Retrieved 1 February 2020.
  3. ^ "Lilly King wins grudge-match gold and takes aim at team-mate Justin Gatlin". The Guardian. 9 August 2016. Retrieved 9 August 2016.
  4. ^ Fenno, Nathan (9 August 2016). "Lilly King beats Yulia Efimova to win gold in 100-meter breaststroke duel". Los Angeles Times. Retrieved 29 August 2016.
  5. ^ "Tokyo 2020 – FINA Swimming Qualification System" (PDF). Tokyo 2020. FINA. Retrieved 29 January 2020.
  6. ^ "FINA Swimming Rulebook, 2017–21" (PDF). FINA. Retrieved 29 January 2020.