The women's 4 × 100 metre medley relay event at the 2020 Summer Olympics was held on 30 July and 1 August 2021 at the Tokyo Aquatics Centre.[1] It was the event's sixteenth consecutive appearance, having been held at every edition since 1960.
| Women's 4 × 100 metre medley relay at the Games of the XXXII Olympiad | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Venue | Tokyo Aquatics Centre | ||||||||||||
| Dates | 30 July 2021 (heats) 1 August 2021 (final) | ||||||||||||
| Competitors | 79 from 16 nations | ||||||||||||
| Teams | 16 | ||||||||||||
| Winning time | 3:51.60 OR | ||||||||||||
| Medalists | |||||||||||||
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← 2016
2024 →
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The medals for the competition were presented by the U.S.' IOC Vice President Anita DeFrantz, and the gifts were presented by India's FINA Bureau Member Virendra Nanavati.
In a close affair with the U.S., the Australians came out on top to recapture their Olympic title after thirteen years. The three medallists in the individual 100 m backstroke led off their nation's respective relays, with Canada's Kylie Masse (57.90) edging out Australia's Kaylee McKeown (58.01) and the U.S.' Regan Smith (58.05). Though the U.S. led after the breaststroke leg, Chelsea Hodges was significantly faster than expected, splitting 1:05.57 to keep Australia within half a second of the Americans. Coming off her triumph in the 50 m freestyle earlier in the session, Emma McKeon (55.91) cut the U.S.' margin in half before the experienced Cate Campbell (52.11) delivered a perfect ending with an Olympic record of 3:51.60. By winning another gold, McKeon ended the meet as the most decorated Australian Olympian of all time with eleven medals to her name as well as just the second woman in history - after Soviet gymnast Maria Gorokhovskaya in 1952 - to win seven medals at a single Games.
Third after the backstroke leg, 100 m breaststroke champion Lydia Jacoby (1:05.03) moved the U.S. into the lead albeit the margin was not as wide as expected given it was a shade off her individual flat-start winning time. Similarly, Torri Huske (56.16) also failed to replicate her flat-start time from the individual 100 m butterfly, reducing the U.S.' lead to 0.25 seconds. Notably, the U.S.' relative inexperience told as their relay changeover add-up was the highest in the field.
Prior to this competition, the existing world and Olympic records were as follows.
| World record |
|
3:50.40 | Gwangju, South Korea | 28 July 2019 | [2] |
| Olympic record |
|
3:52.05 | London, United Kingdom | 4 August 2012 | [3][4] |
The following record was established during the competition:
| Date | Event | Name | Nation | Time | Record |
|---|---|---|---|---|---|
| 1 August | Final |
|
 Australia |
3:51.60 | OR |
The top 12 teams in this event at the 2019 World Aquatics Championships qualified for the Olympics. An additional 4 teams will qualify through having the fastest times at approved qualifying events during the qualifying period (1 March 2019 to 30 May 2020).[5]
The competition consists of two rounds: heats and a final. The relay teams with the best 8 times in the heats 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 |
|---|---|---|
| 30 July | 20:57 | Heats |
| 1 August | 11:15 | Final |
The relay teams with the top 8 times, regardless of heat, advanced to the final.[7]
| Rank | Lane | Nation | Swimmers | Time | Notes |
|---|---|---|---|---|---|
 |
3 | Australia |
Kaylee McKeown (58.01) Chelsea Hodges (1:05.57) Emma McKeon (55.91) Cate Campbell (52.11) |
3:51.60 | OR, OC |
 |
5 |  United States |
Regan Smith (58.05) Lydia Jacoby (1:05.03) Torri Huske (56.16) Abbey Weitzeil (52.49) |
3:51.73 | |
 |
4 |  Canada |
Kylie Masse (57.90) Sydney Pickrem (1:07.17) Maggie Mac Neil (55.27) Penny Oleksiak (52.26) |
3:52.60 | NR |
| 4 | 8 |  China |
Peng Xuwei (59.63) Tang Qianting (1:06.09) Zhang Yufei (55.39) Yang Junxuan (53.02) |
3:54.13 | |
| 5 | 2 |  Sweden |
Michelle Coleman (59.75) Sophie Hansson (1:05.67) Louise Hansson (56.12) Sarah Sjöström (52.73) |
3:54.27 | NR |
| 6 | 6 |  Italy |
Margherita Panziera (1:00.03) Martina Carraro (1:05.88) Elena Di Liddo (56.96) Federica Pellegrini (53.81) |
3:56.68 | |
| 7 | 1 |  ROC |
Maria Kameneva (59.95) Evgeniia Chikunova (1:05.99) Svetlana Chimrova (56.70) Arina Surkova (54.29) |
3:56.93 | |
| 8 | 7 |  Japan |
Anna Konishi (59.92) Kanako Watanabe (1:06.61) Rikako Ikee (57.92) Chihiro Igarashi (53.67) |
3:58.12 |
