The women's 400 metres competition of the athletics events at the 2023 Pan American Games was held on October 30 and November 1 at the Julio Martínez National Stadium of Santiago, Chile.

Records Prior to this competition, the existing world and Pan American Games records were as follows: World record47.60Canberra, AustraliaOctober 6, 1985Pan American Games record49.61Havana, CubaAugust 6, 1991

Schedule Date Time RoundOctober 30, 2023 17:50 SemifinalNovember 1, 2023 20:23 Final

Results All times shown are in seconds.

KEY:qQQualifiedNRNational recordPBPersonal bestSBSeasonal bestDQDisqualified

Semifinal Qualification: First 2 in each heat (Q) and next 2 fastest (q) qualified for the final. The results were as follows:

Rank Heat Name Nationality Time Notes 1 1 Martina Weil 51.47 Q 2 1 Aliyah Abrams 51.82 Q 3 1 Nicole Caicedo 52.32 Q 4 1 Madeline Price 52.70 q 5 1 Tiffani Marinho 52.83 q, 6 2 Evelis Aguilar 53.11 Q 7 2 Grace Konrad 53.64 Q 8 2 Tábata Vitorino 55.57 Q 2 Anabel Medina TR 16.8 2 Roxana Gómez

Final The results were as follows:

Rank Lane Name Nationality Time Notes 6 Martina Weil 51.48 8 Nicole Caicedo 51.76 5 Evelis Aguilar 51.95 4 7 Grace Konrad 52.10 5 4 Aliyah Abrams 52.66 6 2 Tiffani Marinho 52.81 7 3 Madeline Price 53.59 1 Tábata Vitorino

References