2003 NASDAQ-100 Open – Women's singles

Women's singles
2003 NASDAQ-100 Open
Champion Serena Williams
Runner-up Jennifer Capriati
Score4–6, 6–4, 6–1
Draw96 (8WC/12Q/1LL)
Seeds32

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.