The Women's 400m Hurdles event at the 2010 South American Games was held on March 22 at 17:15.
Contents |
| Gold | Silver | Bronze |
| Magdalena Mendoza Venezuela |
Deborah Rodriguez Uruguay |
Elaine Paixão Brazil |
| Standing records prior to the 2010 South American Games | ||||
|---|---|---|---|---|
| World record | Yuliya Pechenkina (RUS) | 52.34 | Tula, Russia | 8 August 2003 |
| World Leading | Lauren Boden (AUS) | 55.75 | Sydney, Australia | 27 February 2010 |
| South American record | Lucimar Teodoro (BRA) | 55.84 | Belém, Brazil | 25 April 2009 |
| South American U23 record | Perla Regina dos Santos (BRA) | 56.08 | São Caetano, Brazil | 25 April 2003 |
| Rank | Athlete | Result | Notes |
|---|---|---|---|
| Magdalena Mendoza (VEN) | 59.22 | ||
| Deborah Rodriguez (URU) | 59.76 | ||
| Elaine Paixão (BRA) | 1:00.89 | ||
| 4 | Wanessa Zavolski (BRA) | 1:01.16 | |
| 5 | Rocio Pancorbo (PER) | 1:02.96 | |
| 6 | Marcela Cuesta Caicedo (COL) | 1:03.74 | |
| 7 | Natalia Lucia Rosero (COL) | 1:07.51 |