2003 NASDAQ-100 Open – Women's singles
| Women's singles | |
|---|---|
| 2003 NASDAQ-100 Open | |
| Champion | Serena Williams |
| Runner-up | Jennifer Capriati |
| Score | 4–6, 6–4, 6–1 |
| Draw | 96 (8WC/12Q/1LL) |
| Seeds | 32 |
Defending champion Serena Williams defeated Jennifer Capriati in a rematch of the previous year's final, 4–6, 6–4, 6–1 to win the women's singles tennis title at the 2003 Miami Open.
This was Capriati’s third consecutive final at the Miami Open, also losing the 2001 final to Venus Williams.