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 | |||||||||||||
| |||||||||||||
The medals for the competition were presented by Anita DeFrantz, United States; IOC Vice-President, and the medalists' bouquets were presented by Virendra Nanavati, India; FINA Bureau Member.
Records
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 |
Qualification
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]
Competition format
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]
Schedule
All times are Japan Standard Time (UTC+9)[1]
| Date | Time | Round |
|---|---|---|
| 30 July | 20:57 | Heats |
| 1 August | 11:15 | Final |
Results
Heats
The relay teams with the top 8 times, regardless of heat, advanced to the final.[7]
Final
| 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 |