The Women's Keirin event at the 2010 South American Games was held on March 20. The qualifications and repechage were held on the morning and the semifinals and finals on the evening.
Medalists edit
| Gold | Silver | Bronze |
Diana García Colombia
|
Milena Salcedo Colombia
|
Daiana Almada Argentina
|
Results edit
First round edit
Heat 1 edit
| Rank | Rider | Q |
|---|---|---|
| 1 | Diana García (COL) |
Q |
| 2 |  Marines Prada (VEN) |
Q |
| 3 | Daiana Almada (ARG) |
|
| 4 |  Maria Paz Bravo (CHI) |
|
| 5 |  Maira Barbosa (BRA) |
Heat 2 edit
| Rank | Rider | Q |
|---|---|---|
| 1 | Milena Salcedo (COL) |
Q |
| 2 | Sumaia Ribeiro (BRA) |
Q |
| 3 | Irene Aravena Cortes (CHI) |
|
| 4 | Caterine Priviley (ARG) |
Repechage edit
| Rank | Rider | Q |
|---|---|---|
| 1 | Maira Barbosa (BRA) |
Q |
| 2 | Daiana Almada (ARG) |
Q |
| 3 | Irene Aravena Cortes (CHI) |
|
| 4 | Caterine Priviley (ARG) |
|
| 5 | Maria Paz Bravo (CHI) |
Final edit
| Rank | Rider |
|---|---|
 |
Diana García (COL)
|
 |
Milena Salcedo (COL)
|
 |
Daiana Almada (ARG)
|
| 4 | Sumaia Ribeiro (BRA)
|
| 5 | Marines Prada (VEN)
|
| 6 | Maira Barbosa (BRA)
|