| Final 21:40 | time | gap | L | pts | _______ | 1. | United States | 3:52.08 | | 5 | 978 | | >Regan Smith 57.68s, Lilly King 2:02.61, Gretchen Walsh 2:59.67, Kate Douglass 3:52.08 | 2. | Australia | 3:53.37 | +1.29 | 6 | 962 | | Kaylee Mckeown 57.91s, Abbey Harkin 2:04.98, Emma Mckeon 3:01.42, Mollie O'Callaghan 3:53.37 | 3. | Canada | 3:54.12 | +2.04 | 4 | 953 | | Kylie Masse 58.74s, Sophie Angus 2:04.95, Margaret Macneil 3:00.64, Summer McIntosh 3:54.12 | 4. | China | 3:54.57 | +2.49 | 7 | 947 | | Letian Wan 59.49s, Qianting Tang 2:05.62, Yufei Zhang 3:01.12, Yujie Cheng 3:54.57 | 5. | Sweden | 3:56.32 | +4.24 | 3 | 926 | | Michelle Coleman 1:01.08s, Sophie Hansson 2:07.42, Louise Hansson 3:04.24, Sarah Sjoestroem 3:56.32 | 6. | Japan | 3:58.02 | +5.94 | 8 | 906 | | Rio Shirai 1:00.96s, Satomi Suzuki 2:06.69, Ai Soma 3:04.36, Rikako Ikee 3:58.02 | 7. | Netherlands | 3:58.09 | +6.01 | 2 | 906 | | Kira Toussaint 1:00.34s, Tes Schouten 2:07.25, Kim Busch 3:06.13, Marrit Steenbergen 3:58.09 | 8. | France | 3:59.24 | +7.16 | 1 | 893 | | Pauline Mahieu 1:00.12s, Charlotte Bonnet 2:06.90, Marie Wattel 3:04.62, Lison Nowaczyk 3:59.24 |
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Heats - Sunday, 30th July 11:20 | Best 8 times advanced to Final. |
| Heat 3 11:31 | time | gap | L | pts | _______ | 1. | Canada | 3:55.93 | | 5 | 931 | 1. | | Ingrid Wilm 59.11s, Sophie Angus 2:05.41, Margaret Macneil 3:01.94, Mary-Sophie Harvey 3:55.93 | 2. | United States | 3:56.31 | +0.38s | 4 | 926 | 2. | | Katharine Berkoff 58.56s, Lydia Jacoby 2:06.29, Torri Huske 3:03.71, Abbey Weitzeil 3:56.31 | 3. | France | 3:58.54 | +2.61s | 3 | 901 | 7. | | Pauline Mahieu 59.82s, Charlotte Bonnet 2:06.69, Marie Wattel 3:03.77, Lison Nowaczyk 3:58.54 | 4. | Great Britain | 3:58.95 | +3.02s | 2 | 896 | 9. | | Lauren COX 59.79s, Kara Hanlon 2:07.18, Laura Stephens 3:05.84, Anna Hopkin 3:58.95 | 5. | Italy | 4:00.67 | +4.74s | 6 | 877 | 11. | | Margherita Panziera 1:00.60s, Martina Carraro 2:06.99, Ilaria Bianchi 3:06.07, Sofia Morini 4:00.67 | 6. | Germany | 4:00.71 | +4.78s | 8 | 876 | 12. | | Laura Riedemann 1:01.68s, Anna Elendt 2:08.91, Angelina Kohler 3:05.68, Nele Schulze 4:00.71 | 7. | Ireland | 4:01.25 | +5.32s | 9 | 871 | 13. | | Danielle Hill 1:01.65s, Mona Mc Sharry 2:07.20, Ellen Walshe 3:06.39, Victoria Catterson 4:01.25 | 8. | Israel | 4:05.57 | +9.64s | 7 | 825 | 19. | | Aviv Barzelay 1:02.13s, Anastasia Gorbenko 2:09.07, Lea Polonsky 3:09.55, Daria Golovaty 4:05.57 | 9. | Spain | 4:05.85 | +9.92s | 0 | 823 | 20. | | Carmen Weiler Sastre 1:01.46s, Jessica Vall Montero 2:09.78, Paula Juste Sanchez 3:10.05, Ainhoa Campabadal Amezcua 4:05.85 | 10. | Brazil | 4:05.86 | +9.93s | 1 | 822 | 21. | | Julia Goes 1:03.96s, Jhennifer Conceicao 2:12.44, Giovanna Tomanik Diamante 3:11.76, Stephanie Balduccini 4:05.86 |
| Heat 2 11:25 | time | gap | L | pts | _______ | 1. | Sweden | 3:57.49 | +1.56s | 5 | 913 | 3. | | Michelle Coleman 1:01.51s, Sophie Hansson 2:08.18, Louise Hansson 3:05.08, Sarah Sjoestroem 3:57.49 | 2. | Australia | 3:57.74 | +1.81s | 4 | 910 | 4. | | Madison Wilson 59.54s, Abbey Harkin 2:07.20, Brianna Throssell 3:04.92, Meg Harris 3:57.74 | 3. | Netherlands | 3:57.81 | +1.88s | 3 | 909 | 5. | | Kira Toussaint 1:00.57s, Tes Schouten 2:07.36, Kim Busch 3:05.82, Marrit Steenbergen 3:57.81 | 4. | China | 3:58.13 | +2.20s | 6 | 905 | 6. | | Xueer Wang 1:00.42s, Chang Yang 2:07.54, Yichun Wang 3:04.71, Qingfeng Wu 3:58.13 | 5. | Japan | 3:58.58 | +2.65s | 7 | 900 | 8. | | Rio Shirai 1:00.60s, Reona Aoki 2:07.17, Ai Soma 3:04.65, Rikako Ikee 3:58.58 | 6. | Poland | 4:00.23 | +4.30s | 2 | 882 | 10. | | Adela Piskorska 1:00.47s, Dominika Sztandera 2:07.48, Paulina Peda 3:06.05, Kornelia Fiedkiewicz 4:00.23 | 7. | Denmark | 4:03.33 | +7.40s | 0 | 848 | 14. | | Julie Kepp Jensen 1:03.33s, Thea Blomsterberg 2:10.25, Helena Rosendahl Bach 3:08.76, Signe Bro 4:03.33 | 8. | South Korea | 4:05.16 | +9.23s | 1 | 830 | 18. | | Eunji LEE 1:01.31s, Sehyun Kwon 2:11.25, Seoyeong KIM 3:10.99, Yeonkyung Hur 4:05.16 | 9. | Thailand | 4:20.43 | +24.50s | 9 | 692 | 23. | | Saovanee Boonamphai 1:06.39s, Phiangkhwan Pawapotako 2:18.64, Kamonchanok Kwanmuang 3:20.61, Jenjira Srisa - Ard 4:20.43 | -. | Hungary | DNS | | 8 | | | | |
| Heat 1 11:20 | time | gap | L | pts | _______ | 1. | Belgium | 4:04.54 | +8.61s | 6 | 836 | 15. | | Roos Vanotterdijk 1:00.91s, Florine Gaspard 2:10.05, Valentine Dumont 3:09.14, Fleur Verdonck 4:04.54 | 2. | Hong Kong | 4:04.89 | +8.96s | 3 | 832 | 16. | | Hoi Shun Stephanie Au 1:00.75s, Siobhan Bernadette Haughey 2:08.24, Hoi Lam TAM 3:09.20, Camille Lily Mei Cheng 4:04.89 | 3. | Greece | 4:04.99 | +9.06s | 4 | 831 | 17. | | Theodora Drakou 1:00.71s, Eleni Kontogeorgou 2:10.94, Anna Ntountounaki 3:09.20, Maria Thaleia Drasidou 4:04.99 | 4. | Mexico | 4:06.85 | +10.92s | 5 | 813 | 22. | | Miranda Grana Perez 1:02.11s, Byanca Melissa Rodriguez Villanueva 2:10.91, Maria Jose Mata Cocco 3:10.45, Athena Meneses Kovacs 4:06.85 |
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