| Champ: |  Ai Sugiyama |
| Runner: |  Kim Clijsters |
| Score: | 3–6, 7–5, 6–4 |
| Draw: | 28 |
| Seeds: | 8 |
| After Year: | no |
| Type: | singles doubles |
See main article: 2003 State Farm Women's Tennis Classic.
Serena Williams was the defending champion, but was forced to withdraw due to a left knee tendonitis.
Ai Sugiyama won the title by defeating Kim Clijsters 3–6, 7–5, 6–4 in the final.
The first four seeds received a bye into the second round.