| Singles | |
|---|---|
| 2003 State Farm Women's Tennis Classic | |
| Champion |  Ai Sugiyama |
| Runner-up |  Kim Clijsters |
| Score | 3–6, 7–5, 6–4 |
| Draw | 28 |
| Seeds | 8 |
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.
Kim Clijsters (final) Lindsay Davenport (second round)
Jelena Dokic (second round) Chanda Rubin (second round)
Eleni Daniilidou (quarterfinals)
Elena Bovina (first round)
Nathalie Dechy (quarterfinals)| Semifinals | Finals | ||||||||||||
| Alexandra Stevenson | 77 | 2 | 67 | ||||||||||
| Ai Sugiyama | 62 | 6 | 79 | ||||||||||
| Ai Sugiyama | 3 | 7 | 6 | ||||||||||
| 2 | Kim Clijsters | 6 | 5 | 4 | |||||||||
| Meghann Shaughnessy | 3 | 5 | |||||||||||
| 2 | Kim Clijsters | 6 | 7 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| LL | S Foretz | 3 | 0 | ||||||||||||||||||||||||
| Q | M Irvin | 5 | 1 | A Stevenson | 6 | 6 | |||||||||||||||||||||
| A Stevenson | 7 | 6 | A Stevenson | 6 | 6 | ||||||||||||||||||||||
| Q | V Razzano | 6 | 79 | 8 | N Dechy | 3 | 4 | ||||||||||||||||||||
| L Raymond | 2 | 67 | Q | V Razzano | 4 | r | |||||||||||||||||||||
| WC |  M Lučić | 6 | 1 | 0 | 8 | N Dechy | 6 | ||||||||||||||||||||
| 8 | N Dechy | 3 | 6 | 6 | A Stevenson | 77 | 2 | 67 | |||||||||||||||||||
| A Sugiyama | 62 | 6 | 79 | ||||||||||||||||||||||||
| 3 | L Davenport | 65 | 6 | 3 | |||||||||||||||||||||||
| Q | E Kulikovskaya | 3 | 1 | A Sugiyama | 77 | 4 | 6 | ||||||||||||||||||||
| A Sugiyama | 6 | 6 | A Sugiyama | 7 | 7 | ||||||||||||||||||||||
| Q |  An Serra Zanetti | 2 | 4 | 6 | E Daniilidou | 5 | 5 | ||||||||||||||||||||
 Y-j Cho | 6 | 6 | Y-j Cho | 3 | 3 | ||||||||||||||||||||||
| V Zvonareva | 2 | 3 | 6 | E Daniilidou | 6 | 6 | |||||||||||||||||||||
| 6 | E Daniilidou | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 7 | E Bovina | 1 | 4 | ||||||||||||||||||||||||
 F Schiavone | 6 | 6 | F Schiavone | 1 | 7 | 6 | |||||||||||||||||||||
| S Farina Elia | 7 | 3 | 6 | S Farina Elia | 6 | 5 | 3 | ||||||||||||||||||||
 J Husárová | 5 | 6 | 4 | F Schiavone | 2 | 1 | |||||||||||||||||||||
| M Shaughnessy | 6 | 6 | M Shaughnessy | 6 | 6 | ||||||||||||||||||||||
 D Bedáňová | 2 | 3 | M Shaughnessy | 6 | 6 | ||||||||||||||||||||||
| 4 | J Dokic | 4 | 2 | ||||||||||||||||||||||||
| M Shaughnessy | 3 | 5 | |||||||||||||||||||||||||
| 5 | C Rubin | 6 | 6 | 2 | K Clijsters | 6 | 7 | ||||||||||||||||||||
| J Craybas | 3 | 1 | 5 | C Rubin | 6 | 2 | 1 | ||||||||||||||||||||
 B Schett | 66 | 1 | L Granville | 4 | 6 | 6 | |||||||||||||||||||||
| L Granville | 78 | 6 | L Granville | 3 | 3 | ||||||||||||||||||||||
 C Black | 6 | 79 | 2 | K Clijsters | 6 | 6 | |||||||||||||||||||||
| T Panova | 0 | 67 | C Black | 2 | 3 | ||||||||||||||||||||||
| 2 | K Clijsters | 6 | 6 | ||||||||||||||||||||||||
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