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 was the event's seventeenth consecutive appearance, having been held at every edition since 1956.
Women's 100 metre butterfly at the Games of the XXXII Olympiad | |||||||||||||
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Venue | Tokyo Aquatics Centre | ||||||||||||
Dates | 24 July 2021 (heats) 25 July 2021 (semifinals) 26 July 2021 (final) | ||||||||||||
Competitors | 33 from 27 nations | ||||||||||||
Winning time | 55.59 AM | ||||||||||||
Medalists | |||||||||||||
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Prior to this competition, the existing world and Olympic records were as follows.
World record | Sarah Sjöström (SWE) | 55.48 | Rio de Janeiro, Brazil | 7 August 2016 | |
Olympic record | Sarah Sjöström (SWE) | 55.48 | Rio de Janeiro, Brazil | 7 August 2016 |
No new records were set during the competition.
The Olympic Qualifying Time for the event is 57.92 seconds. 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 59.66 seconds. 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.
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.
All times are Japan Standard Time (UTC+9)
Date | Time | Round |
---|---|---|
24 July | 19:25 | Heats |
25 July | 10:40 | Semifinals |
26 July | 10:30 | Final |
The swimmers with the top 16 times, regardless of heat, advanced to the semifinals.
The swimmers with the best 8 times, regardless of heat, advanced to the final.
Rank | Heat | Lane | Swimmer | Nation | Time | Notes |
---|---|---|---|---|---|---|
1 | 2 | 4 | Zhang Yufei | China | 55.89 | Q |
2 | 1 | 6 | Marie Wattel | France | 56.16 | Q, NR |
3 | 1 | 4 | Emma McKeon | Australia | 56.33 | Q |
4 | 2 | 5 | Sarah Sjöström | Sweden | 56.40 | Q |
5 | 1 | 5 | Torri Huske | United States | 56.51 | Q |
6 | 2 | 3 | Maggie Mac Neil | Canada | 56.56 | Q |
7 | 1 | 3 | Louise Hansson | Sweden | 56.92 | Q |
8 | 2 | 6 | Anastasiya Shkurdai | Belarus | 57.19 | Q |
9 | 2 | 1 | Anna Ntountounaki | Greece | 57.25 | NR |
10 | 1 | 2 | Claire Curzan | United States | 57.42 | |
11 | 2 | 8 | Svetlana Chimrova | ROC | 57.54 | |
12 | 1 | 8 | Brianna Throssell | Australia | 57.59 | |
13 | 2 | 2 | Elena Di Liddo | Italy | 57.60 | |
14 | 1 | 1 | Arina Surkova | ROC | 57.72 | |
15 | 1 | 7 | Ilaria Bianchi | Italy | 58.07 | |
16 | 2 | 7 | Katerine Savard | Canada | 58.10 |
Rank | Lane | Swimmer | Nation | Time | Notes |
---|---|---|---|---|---|
7 | Maggie Mac Neil | Canada | 55.59 | AM | |
4 | Zhang Yufei | China | 55.64 | ||
3 | Emma McKeon | Australia | 55.72 | OC | |
4 | 2 | Torri Huske | United States | 55.73 | |
5 | 1 | Louise Hansson | Sweden | 56.22 | |
6 | 5 | Marie Wattel | France | 56.27 | |
7 | 6 | Sarah Sjöström | Sweden | 56.91 | |
8 | 8 | Anastasiya Shkurdai | Belarus | 57.05 |
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