# 2003 Acura Classic – Singles

Venus Williams was the defending champion, but did not compete this year.
Justine Henin-Hardenne won the title by defeating Kim Clijsters 3–6, 6–2, 6–3 in the final.

## Seeds

All seeds received a bye into the second round.
* Serena Williams (withdrew due to a left quadriceps strain)
* Kim Clijsters (final)
* Justine Henin-Hardenne (champion)
* Lindsay Davenport (semifinals)
* Jennifer Capriati (second round, retired)
* Chanda Rubin (quarterfinals)
* Daniela Hantuchová (third round)
* Ai Sugiyama (second round)
* Jelena Dokic (third round)
* Magdalena Maleeva (third round)
* Conchita Martínez (second round)
* Amanda Coetzer (second round)
* Elena Dementieva (third round)
* Meghann Shaughnessy (second round)
* Silvia Farina Elia (second round)
* Elena Bovina (third round)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| | Svetlana Kuznetsova | 6 | 6 | | | | | | | | | |
| | Elena Likhovtseva | 2 | 3 | | | | | | | | | |
| | Elena Likhovtseva | 2 | 3 | | Svetlana Kuznetsova | 1 | 3 | | | | | |
| | | | | 3 | Justine Henin-Hardenne | 6 | 6 | | | | | |
| 3 | Justine Henin-Hardenne | 6 | 6 | 3 | Justine Henin-Hardenne | 6 | 6 | | | | | |
| | Nadia Petrova | 0 | 2 | | | | | | | | | |
| | Nadia Petrova | 0 | 2 | | | | | 3 | Justine Henin-Hardenne | 3 | 6 | 6 |
| | | | | | | | | 2 | Kim Clijsters | 6 | 2 | 3 |
| 6 | Chanda Rubin | 3 | 3 | | | | | | | | | | 2 | Kim Clijsters | 6 | 2 | 3 |
| 4 | Lindsay Davenport | 6 | 6 | | | | | | | | | |
| 4 | Lindsay Davenport | 6 | 6 | 4 | Lindsay Davenport | 3 | 3 | | | | | |
| | | | | 2 | Kim Clijsters | 6 | 6 | | | | | |
| | Lisa Raymond | 2 | 2 | 2 | Kim Clijsters | 6 | 6 | | | | | |
| 2 | Kim Clijsters | 6 | 6 | | | | | | | | | |

### Top half
#### Section 1

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | LL | M Tu | 3 | 6 | 6$^3$ | | | | | | | |
| | S Kuznetsova | 6 | 6 | | | S Kuznetsova | 6 | 4 | 7$^7$ | | | | | | | |
| WC | Leslie Koffi | 2 | 1 | | | | | | | | S Kuznetsova | 7$^7$ | 6 | | | |
| LL | N Pratt | 6 | 4 | 6 | | | | | | 16 | E Bovina | 6$^4$ | 2 | | | |
| | T Tanasugarn | 3 | 6 | 4 | LL | N Pratt | 6 | 3 | 2 | | | | | | | |
| | | | | | 16 | E Bovina | 4 | 6 | 6 | | | | | | | |
| | | | | | | | | | | | | | | S Kuznetsova | 6 | 6 |
| | | | | | | | | | | | | | | E Likhovtseva | 2 | 3 |
| | | | | | 10 | M Maleeva | 6 | 6 | | | | | | | | |
| | A Molik | 4 | 6 | 6 | | A Molik | 1 | 3 | | | | | | | | |
| WC | A Haynes | 6 | 2 | 1 | | | | | | 10 | M Maleeva | 4 | 3 | | | |
| | E Likhovtseva | 6 | 6 | | | | | | | | E Likhovtseva | 6 | 6 | | | |
| Q | S Asagoe | 3 | 1 | | | E Likhovtseva | 4 | | | | | | | | | |
| | | | | | 5 | J Capriati | 1$^r$ | | | | | | | | | |

#### Section 2

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | 3 | J Henin-Hardenne | 6 | 6 | | | | | | | | | | |
| | R Grande | 5 | 3 | | E Daniilidou | 1 | 1 | | | | | | | | | | |
| | E Daniilidou | 7 | 6 | | | | | | 3 | J Henin-Hardenne | 4 | 6 | 6 | | | | |
| WC | J Husárová | 5 | 1 | | | | | | 13 | E Dementieva | 6 | 4 | 1 | | | | |
| | F Schiavone | 7 | 6 | | F Schiavone | 6$^6$ | 2 | | | | | | | | | | |
| | | | | 13 | E Dementieva | 7$^8$ | 6 | | | | | | | | | | |
| | | | | | | | | | | | | | | 3 | J Henin-Hardenne | 6 | 6 |
| | | | | | | | | | | | | | | | N Petrova | 0 | 2 |
| | | | | 12 | A Coetzer | 3 | 3 | | | | | | | | | | |
| | N Petrova | 6 | 3 | | N Petrova | 6 | 6 | | | | | | | | | | |
| | MG Mikaelian | 1 | 0$^r$ | | | | | | | N Petrova | 6 | 6 | | | | | |
| | K Srebotnik | 6 | 6 | | | | | | 7 | D Hantuchová | 1 | 3 | | | | | |
| | Y-j Cho | 3 | 0 | | K Srebotnik | 6 | 5 | 6$^6$ | | | | | | | | | |
| | | | | 7 | D Hantuchová | 3 | 7 | 7$^8$ | | | | | | | | | |

### Bottom half
#### Section 3

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 6 | C Rubin | 7 | 6 | | | | | | | | | | |
| | T Pisnik | 6 | 3 | 7 | | T Pisnik | 5 | 0 | | | | | | | | | | |
| | P Suárez | 2 | 6 | 5 | | | | | | 6 | C Rubin | 1 | 6 | 6 | | | | |
| | M Serna | 6 | 6 | | | | | | | 9 | J Dokic | 6 | 3 | 4 | | | | |
| | L Granville | 3 | 3 | | | M Serna | 6 | 2 | 3 | | | | | | | | | |
| | | | | | 9 | J Dokic | 2 | 6 | 6 | | | | | | | | | |
| | | | | | | | | | | | | | | | 6 | C Rubin | 3 | 3 |
| | | | | | | | | | | | | | | | 4 | L Davenport | 6 | 6 |
| | | | | | 15 | S Farina Elia | 2 | 2 | | | | | | | | | | |
| | L Krasnoroutskaya | 6 | 6 | | | L Krasnoroutskaya | 6 | 6 | | | | | | | | | | |
| LL | S Obata | 4 | 3 | | | | | | | | L Krasnoroutskaya | 0 | 6$^2$ | | | | | |
| | M Sánchez Lorenzo | 5 | 6$^3$ | | | | | | | 4 | L Davenport | 6 | 7$^7$ | | | | | |
| | A Frazier | 7 | 7$^7$ | | | A Frazier | 3 | 1 | | | | | | | | | | |
| | | | | | 4 | L Davenport | 6 | 6 | | | | | | | | | | |

#### Section 4

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 8 | A Sugiyama | 0 | 6 | 4 | | | | | | | | |
| | B Schett | 4 | 6 | 5 | | L Raymond | 6 | 2 | 6 | | | | | | | | |
| | L Raymond | 6 | 2 | 7 | | | | | | | L Raymond | 7$^7$ | 6 | | | | |
| WC | M Pierce | 6 | 6 | | | | | | | WC | M Pierce | 6$^5$ | 4 | | | | |
| Q | V Razzano | 1 | 3 | | WC | M Pierce | 6 | 6 | | | | | | | | | |
| | | | | | 11 | C Martínez | 1 | 3 | | | | | | | | | |
| | | | | | | | | | | | | | | | L Raymond | 2 | 2 |
| | | | | | | | | | | | | | | 2 | K Clijsters | 6 | 6 |
| | | | | | 14 | M Shaughnessy | 6 | 6$^5$ | 5 | | | | | | | | |
| | M Bartoli | 7$^7$ | 6 | | | M Bartoli | 3 | 7$^7$ | 7 | | | | | | | | |
| Q | M Irvin | 6$^2$ | 4 | | | | | | | | M Bartoli | 1 | 1 | | | | |
| Q | A Jidkova | 6 | 2 | 4 | | | | | | 2 | K Clijsters | 6 | 6 | | | | |
| | V Ruano Pascual | 2 | 6 | 6 | | V Ruano Pascual | 2 | 0 | | | | | | | | | |
| | | | | | 2 | K Clijsters | 6 | 6 | | | | | | | | | |