| | | 1. Marileidy Paulino |  Dominicana | 48.76s | NR | - |  | 2. Natalia Kaczmarek |  Poland | 49.57s |  | - |  | 3. Sada Williams |  Barbados | 49.60s |  | - |  | 4. Rhasidat Adeleke |  Ireland | 50.13s |  | - |  | 5. Cynthia Bolingo |  Belgium | 50.33s |  | - |  | 6. Lieke Klaver |  Netherlands | 50.33s |  | - |  | 7. Candice McLeod |  Jamaica | 51.08s |  | - |  | 8. Talitha Diggs |  United States | 51.25s |  | - | 
 |  | 
 | World Record: Marita Koch, East Germany 47.60s Canberra, Australia 6 October 1985 |  | Championship Record: Jarmila Kratochvílová, Czechoslovakia 47.99s Helsinki, Finland 10 August 1983 |  | World Leading: Sydney McLaughlin-Levrone, United States 48.74s Eugene, United States 8 July 2023 |  | -- Competitors from -- Nations. Quota --. Entry Standard: --.--s. Venue: National Athletics Centre. |  |  | 
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 |  |  | 7 Heats. First 3 from each Heat and next best 3 times advanced to Semi-Finals. | 
 | African Record: Falilat Ogunkoya, Nigeria 49.10s Atlanta, United States 29 July 1996 |  | Asian Record: Salwa Eid Naser, Bahrain 48.14s Doha, Qatar 3 October 2019 |  | North, Central American and Caribbean Record: Shaunae Miller-Uibo, Bahamas 48.36s Tokyo, Japan 6 August 2021 |  | South American Record: Ximena Restrepo, Colombia 49.64s Barcelona, Spain 5 August 1992 |  | European Record: Marita Koch, East Germany 47.60s Canberra, Australia 6 October 1985 |  | Oceanian Record: Cathy Freeman, Australia 48.63s Atlanta, United States 29 July 1996 | 
 | Prepared and maintained by Todor Krastev 
todor1966@yahoo.comLast updated: 14 Sep 2025
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