Athletics at the 2007 Pan American Games – Women's 400 metres
The women's 400 metres event at the 2007 Pan American Games was held on July 23–25.
Medalists
| Gold | Silver | Bronze |
Ana Guevara Mexico
|
Christine Amertil Bahamas
|
Indira Terrero Cuba
|
Results
Heats
Qualification: First 2 of each heat (Q) and the next 2 fastest (q) qualified for the final.
| Rank | Heat | Name | Nationality | Time | Notes |
|---|---|---|---|---|---|
| 1 | 1 | Ana Guevara | Mexico |
51.10 | Q |
| 2 | 2 | Davita Prendergast |  Jamaica |
51.47 | Q |
| 3 | 2 | Indira Terrero | Cuba |
51.56 | Q |
| 4 | 3 | Shereefa Lloyd | Jamaica |
51.66 | Q |
| 5 | 3 | Christine Amertil | Bahamas |
51.67 | Q, SB |
| 6 | 2 | Debbie Dunn |  United States |
51.86 | q |
| 7 | 1 | LaVerne Jones |  United States Virgin Islands |
51.94 | Q, PB |
| 8 | 1 | Monique Henderson | United States |
52.18 | q |
| 9 | 3 | Gabriela Medina | Mexico |
52.22 | |
| 10 | 2 | Kineke Alexander |  Saint Vincent and the Grenadines |
52.37 | |
| 11 | 1 | Maria Laura Almirão |  Brazil |
52.72 | |
| 12 | 1 | Esther Akinsulie |  Canada |
52.77 | |
| 13 | 3 | Aliann Pompey |  Guyana |
53.03 | |
| 14 | 2 | Ginou Etienne |  Haiti |
53.13 | |
| 15 | 3 | Carline Muir | Canada |
53.25 | |
| 16 | 3 | Nathandra John |  Saint Kitts and Nevis |
53.42 | |
| 17 | 2 | María Idrobo |  Colombia |
54.29 | |
| 18 | 3 | Sheila Ferreira | Brazil |
54.44 | |
| 19 | 3 | Britney St. Louis |  Trinidad and Tobago |
54.45 | |
| 20 | 1 | Lucy Jaramillo |  Ecuador |
54.55 | |
| 21 | 2 | Hazel Ann Regis |  Grenada |
54.75 | |
| 1 | Dominique Maloney |  British Virgin Islands |
DQ |
Final
| Rank | Lane | Name | Nationality | Time | Notes |
|---|---|---|---|---|---|
 |
4 | Ana Guevara | Mexico |
50.34 | SB |
 |
2 | Christine Amertil | Bahamas |
50.99 | SB |
 |
6 | Indira Terrero | Cuba |
51.09 | |
| 4 | 3 | Shereefa Lloyd | Jamaica |
51.19 | |
| 5 | 5 | Davita Prendergast | Jamaica |
51.90 | |
| 6 | 1 | Monique Henderson | United States |
52.28 | |
| 7 | 7 | LaVerne Jones | United States Virgin Islands |
52.97 | |
| 8 | 8 | Debbie Dunn | United States |
52.97 |