# 2003 US Open – Girls' singles

Maria Kirilenko was the defending champion, but did not compete in the juniors that year.
Kirsten Flipkens won the tournament, defeating Michaëlla Krajicek in the final, 6–3, 7–5.

## Seeds

* Bethanie Mattek (third round)
* Michaëlla Krajicek (final)
* Jarmila Gajdosova (first round)
* Kirsten Flipkens (champion)
* Tatiana Golovin (quarterfinals)
* Kateřina Böhmová (first round)
* Marta Domachowska (third round)
* Allison Baker (second round)
* Vojislava Lukić (first round)
* Emma Laine (third round)
* Andrea Hlaváčková (third round)
* Ryōko Fuda (quarterfinals)
* Bei'er Ko (second round)
* Nadja Pavic (second round)
* Kateryna Bondarenko (semifinals)
* Anna Chakvetadze (second 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 15 | Kateryna Bondarenko | 6 | 6$^3$ | 7$^7$ | | | | | | | | | |
| 12 | Ryōko Fuda | 4 | 7$^7$ | 6$^4$ | | | | | | | | | |
| 12 | Ryōko Fuda | 4 | 7$^7$ | 6$^4$ | 15 | Kateryna Bondarenko | 1 | 6 | 2 | | | | |
| | | | | | 4 | Kirsten Flipkens | 6 | 4 | 6 | | | | |
| 4 | Kirsten Flipkens | 6 | 4 | 6 | 4 | Kirsten Flipkens | 6 | 4 | 6 | | | | |
| | Olga Govortsova | 1 | 6 | 3 | | | | | | | | | |
| | Olga Govortsova | 1 | 6 | 3 | | | | | | 4 | Kirsten Flipkens | 6 | 7 |
| | | | | | | | | | | 2 | Michaëlla Krajicek | 3 | 5 |
| | Ana Ivanovic | 2 | 4 | | | | | | | | | | | 2 | Michaëlla Krajicek | 3 | 5 |
| Q | Cory Ann Avants | 6 | 6 | | | | | | | | | | |
| Q | Cory Ann Avants | 6 | 6 | | Q | Cory Ann Avants | 2 | 2 | | | | | |
| | | | | | 2 | Michaëlla Krajicek | 6 | 6 | | | | | |
| 5 | Tatiana Golovin | 1 | 4 | | 2 | Michaëlla Krajicek | 6 | 6 | | | | | |
| 2 | Michaëlla Krajicek | 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 | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| 1 | Bethanie Mattek | 6 | 6 | | | | | | | | | | | | | | | | |
| Q | Tara Iyer | 0 | 4 | | 1 | B Mattek | 6 | 5 | 6 | | | | | | | | | | |
| | Haidy El Tabakh | 3 | 6$^4$ | | Q | L Burdette | 3 | 7 | 2 | | | | | | | | | | |
| Q | Lindsay Burdette | 6 | 7$^7$ | | | | | | | 1 | B Mattek | 0 | 6 | 4 | | | | | |
| | Katarina Zoricic | ? | 6 | | | | | | | 15 | K Bondarenko | 6 | 4 | 6 | | | | | |
| Q | Neha Uberoi | ? | 4 | | | K Zoricic | 4 | 4 | | | | | | | | | | | |
| | Alla Kudryavtseva | 7$^7$ | 3 | 2 | 15 | K Bondarenko | 6 | 6 | | | | | | | | | | | |
| 15 | Kateryna Bondarenko | 6$^3$ | 6 | 6 | | | | | | | | | | | 15 | K Bondarenko | 6 | 6$^3$ | 7$^7$ |
| 12 | Ryōko Fuda | 4 | 6 | 6 | | | | | | | | | | | 12 | R Fuda | 4 | 7$^7$ | 6$^4$ |
| WC | Alexa Glatch | 6 | 2 | 3 | 12 | R Fuda | 6 | 6 | | | | | | | | | | | |
| WC | Mary Gambale | 5 | 6 | 6 | WC | M Gambale | 3 | 3 | | | | | | | | | | | |
| WC | Jessica Kirkland | 7 | 0 | 4 | | | | | | 12 | R Fuda | 6 | 6 | | | | | | |
| | Lucie Šafářová | 7 | 7 | | | | | | | 7 | M Domachowska | 4 | 4 | | | | | | |
| | Michelle Mitchell | 5 | 5 | | | L Šafářová | 3 | 5 | | | | | | | | | | | |
| Q | Jessi Robinson | 5 | 0 | | 7 | M Domachowska | 6 | 7 | | | | | | | | | | | |
| 7 | Marta Domachowska | 7 | 6 | | | | | | | | | | | | | | | | |

#### Section 2

| 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 | Quarterfinals |
| 4 | Kirsten Flipkens | 6 | 6 | | | | | | | | | | | | | | | |
| | Julia Cohen | 3 | 1 | | 4 | K Flipkens | 6 | 6 | | | | | | | | | | |
| WC | Audra Cohen | 1 | 6$^5$ | | WC | V King | 1 | 1 | | | | | | | | | | |
| WC | Vania King | 6 | 7$^7$ | | | | | | | 4 | K Flipkens | 6 | 6 | | | | | |
| | Sanja Ančić | 3 | 6 | 6 | | | | | | | S Ančić | 0 | 2 | | | | | |
| WC | Alexandra Mueller | 6 | 4 | 4 | | S Ančić | 6 | 3 | 6 | | | | | | | | | |
| | Megan Moulton-Levy | 2 | 4 | | 13 | B Ko | 4 | 6 | 2 | | | | | | | | | |
| 13 | Beier Ko | 6 | 6 | | | | | | | | | | | 4 | K Flipkens | 6 | 4 | 6 |
| 9 | Vojislava Lukić | 2 | 2 | | | | | | | | | | | | O Govortsova | 1 | 6 | 3 |
| | Jamea Jackson | 6 | 6 | | | J Jackson | 4 | 6 | 2 | | | | | | | | | |
| | Sanaa Bhambri | 2 | 0$^r$ | | | O Govortsova | 6 | 4 | 6 | | | | | | | | | |
| | Olga Govortsova | 6 | 3 | | | | | | | | O Govortsova | 6 | 6 | | | | | |
| WC | Theresa Logar | 6 | 6 | | | | | | | | S-N Sun | 2 | 2 | | | | | |
| | Mădălina Gojnea | 3 | 1 | | WC | T Logar | 1 | 6$^2$ | | | | | | | | | | |
| | Sun Sheng-Nan | 7 | 6 | | | S-N Sun | 6 | 7$^7$ | | | | | | | | | | |
| 6 | Kateřina Böhmová | 5 | 3 | | | | | | | | | | | | | | | |

### 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 | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| 8 | Allison Baker | 6 | 6 | | | | | | | | | | | | | | |
| | Mari Andersson | 1 | 1 | | 8 | A Baker | 6 | 3 | 5 | | | | | | | | |
| | Timea Bacsinszky | 6 | 1 | 2 | | A Ivanovic | 2 | 6 | 7 | | | | | | | | |
| | Ana Ivanovic | 3 | 6 | 6 | | | | | | | A Ivanovic | 6 | 6 | | | | |
| Q | Jennifer-Lee Heinser | 0 | 6$^4$ | | | | | | | 11 | A Hlaváčková | 4 | 0 | | | | |
| | Ágnes Szávay | 6 | 7$^7$ | | | Á Szávay | 2 | 2 | | | | | | | | | |
| | Eden Marama | 3 | 3 | | 11 | A Hlaváčková | 6 | 6 | | | | | | | | | |
| 11 | Andrea Hlaváčková | 6 | 6 | | | | | | | | | | | | A Ivanovic | 2 | 4 |
| 16 | Anna Chakvetadze | 6 | 6 | | | | | | | | | | | Q | CA Avants | 6 | 6 |
| | Sessil Karatantcheva | 0 | 1 | | 16 | A Chakvetadze | 6$^6$ | 2 | | | | | | | | | |
| | Megan Falcon | 4 | 4 | | | S Pe'er | 7$^8$ | 6 | | | | | | | | | |
| | Shahar Pe'er | 6 | 6 | | | | | | | | S Pe'er | 2 | 3 | | | | |
| | Aleksandra Wozniak | 6 | 6$^2$ | 2 | | | | | | Q | CA Avants | 6 | 6 | | | | |
| | Peng Shuai | 4 | 7$^7$ | 6 | | S Peng | 6 | 5 | 6$^6$ | | | | | | | | |
| Q | Cory Ann Avants | 6$^6$ | 6 | 6 | Q | CA Avants | 2 | 7 | 7$^8$ | | | | | | | | |
| 3 | Jarmila Gajdosova | 7$^8$ | 4 | 3 | | | | | | | | | | | | | |

#### Section 4

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| 5 | Tatiana Golovin | 7$^7$ | 6 | | | | | | | | | | | | | |
| Q | Olga Puchkova | 6$^4$ | 3 | | 5 | T Golovin | 6 | 6 | | | | | | | | |
| | Ágnes Szatmári | 3 | 2 | | | I Ichim | 3 | 1 | | | | | | | | |
| | Iris Ichim | 6 | 6 | | | | | | 5 | T Golovin | 6 | 6 | | | | |
| | Lara Giltinan | 3 | 2 | | | | | | 10 | E Laine | 2 | 2 | | | | |
| | Sania Mirza | 6 | 6 | | | S Mirza | 2 | 4 | | | | | | | | |
| Q | Ellah Nze | 2 | 0 | | 10 | E Laine | 6 | 6 | | | | | | | | |
| 10 | Emma Laine | 6 | 6 | | | | | | | | | | 5 | T Golovin | 1 | 4 |
| 14 | Nadja Pavic | 6 | 6 | | | | | | | | | | 2 | M Krajicek | 6 | 6 |
| | Yung-Jan Chan | 0 | 3 | | 14 | N Pavic | 2 | 2 | | | | | | | | |
| | Rui Du | 2 | 4 | | | N Vaidišová | 6 | 6 | | | | | | | | |
| | Nicole Vaidišová | 6 | 6 | | | | | | | N Vaidišová | 2 | 3 | | | | |
| | Olena Tsutskova | 6 | 1 | 6 | | | | | 2 | M Krajicek | 6 | 6 | | | | |
| WC | Elizabeth Kobak | 2 | 6 | 3 | | O Tsutskova | 4 | 1 | | | | | | | | |
| | Krystina Marcio | 2 | 1 | | 2 | M Krajicek | 6 | 6 | | | | | | | | |
| 2 | Michaëlla Krajicek | 6 | 6 | | | | | | | | | | | | | |

## Sources

* Draw