# 1999 IGA SuperThrift Tennis Classic – Singles

The 1999 IGA SuperThrift Classic singles was the singles event of the fourteenth edition of the IGA SuperThrift Classic; a WTA Tier III tournament held in Oklahoma City, United States. First-seded Venus Williams was the defending champion and won in the final 6–4, 6–0 against third-seeded Amanda Coetzer.

## Seeds

The top two seeds received a bye to the second round.
* Venus Williams (champion)
* Anna Kournikova (semifinals)
* Amanda Coetzer (final)
* Lisa Raymond (first round)
* Chanda Rubin (quarterfinals)
* Amy Frazier (first round)
* Mariaan de Swardt (first round)
* Tara Snyder (first 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

| Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 1 | Venus Williams | 6 | 6 | | | | |
| Q | Lilia Osterloh | 2 | 3 | | | | |
| Q | Lilia Osterloh | 2 | 3 | 1 | Venus Williams | 6 | 6 |
| | | | | 3 | Amanda Coetzer | 4 | 0 |
| 3 | Amanda Coetzer | 6 | 6 | 3 | Amanda Coetzer | 4 | 0 |
| 2 | Anna Kournikova | 4 | 2 | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| | | | | | 1 | V Williams | 6 | 7$^7$ | | | | | | | | | | |
| | K Boogert | 4 | 2 | | | K Po | 1 | 6$^3$ | | | | | | | | | | |
| | K Po | 6 | 6 | | | | | | | 1 | V Williams | 7 | 6 | | | | | |
| | O Barabanschikova | 6 | 1 | 2 | | | | | | WC | A Stevenson | 5 | 3 | | | | | |
| | T Panova | 3 | 6 | 6 | | T Panova | 6 | 6$^4$ | 5 | | | | | | | | | |
| WC | A Stevenson | 7 | 7$^7$ | | WC | A Stevenson | 2 | 7$^7$ | 7 | | | | | | | | | |
| 7 | M de Swardt | 5 | 6$^5$ | | | | | | | | | | | | 1 | V Williams | 6 | 6 |
| 4 | L Raymond | 6 | 2 | 2 | | | | | | | | | | | Q | L Osterloh | 2 | 3 |
| Q | L Osterloh | 2 | 6 | 6 | Q | L Osterloh | 6 | 6 | | | | | | | | | | |
| WC | L McNeil | 5 | 4 | | | M Saeki | 4 | 3 | | | | | | | | | | |
| | M Saeki | 7 | 6 | | | | | | | Q | L Osterloh | 3 | 6 | 6 | | | | |
| Q | M Washington | 7$^7$ | 6 | | | | | | | | J Chi | 6 | 4 | 4 | | | | |
| | C Cristea | 6$^4$ | 4 | | Q | M Washington | 6$^6$ | 3 | | | | | | | | | | |
| | J Chi | 3 | 7$^9$ | 7 | | J Chi | 7$^8$ | 6 | | | | | | | | | | |
| 6 | A Frazier | 6 | 6$^7$ | 5 | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 8 | T Snyder | 3 | 2 | | | | | | | | | | | | | | |
| | C Black | 6 | 6 | | | C Black | 7$^7$ | 7$^7$ | | | | | | | | | |
| | A Dechaume-Balleret | 7 | 6 | | | A Dechaume-Balleret | 6$^5$ | 6$^5$ | | | | | | | | | |
| | A Kremer | 5 | 4 | | | | | | | C Black | 3 | 7$^7$ | 3 | | | | |
| | J Nejedly | 4 | 2 | | | | | | 3 | A Coetzer | 6 | 6$^5$ | 6 | | | | |
| | E Wagner | 6 | 6 | | | E Wagner | 1 | 3 | | | | | | | | | |
| Q | N Miyagi | 6 | 6$^4$ | 4 | 3 | A Coetzer | 6 | 6 | | | | | | | | | |
| 3 | A Coetzer | 4 | 7$^7$ | 6 | | | | | | | | | | 3 | A Coetzer | 6 | 6 |
| 5 | C Rubin | 6 | 7$^7$ | | | | | | | | | | | 2 | A Kournikova | 4 | 2 |
| | S Smith | 3 | 6$^2$ | | 5 | C Rubin | 6 | 6 | | | | | | | | | |
| | M Shaughnessy | 3 | 6$^6$ | | Q | N Pratt | 3 | 2 | | | | | | | | | |
| Q | N Pratt | 6 | 7$^8$ | | | | | | 5 | C Rubin | 5 | 6 | 3 | | | | |
| | K Brandi | 7$^7$ | 6 | | | | | | 2 | A Kournikova | 7 | 0 | 6 | | | | |
| | M Sánchez Lorenzo | 6$^3$ | 2 | | | K Brandi | 3 | 1 | | | | | | | | | |
| | | | | | 2 | A Kournikova | 6 | 6 | | | | | | | | | |

## Qualifying
### Seeds

* Brie Rippner (qualifying competition)
* Nicole Pratt (Qualifier)
* Sandra Cacic (first round)
* Pavlina Stoyanova (first round)
* Jolene Watanabe (second round)
* Karin Miller (first round)
* Aleksandra Olsza (first round)
* Nana Miyagi (Qualifier)

### Qualifiers

* Lilia Osterloh
* Mashona Washington
* Nana Miyagi
* Nicole Pratt

## Qualifying 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

### First qualifier

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Brie Rippner | 6 | 6 | | | | | | | | |
| | Aurandrea Narváez | 0 | 1 | | | | | | | | |
| | Aurandrea Narváez | 0 | 1 | 1 | Brie Rippner | 6 | 6 | | | | |
| | | | | | Yuka Yoshida | 3 | 4 | | | | |
| | Yuka Yoshida | 7 | 6 | | Yuka Yoshida | 3 | 4 | | | | |
| | Katie Schlukebir | 5 | 4 | | | | | | | | |
| | Katie Schlukebir | 5 | 4 | | | | | 1 | Brie Rippner | 6$^4$ | 2 |
| | | | | | | | | | Lilia Osterloh | 7$^7$ | 6 |
| | Tracy Singian | 6 | 6 | | | | | | | | | Lilia Osterloh | 7$^7$ | 6 |
| | Kim Grant | 4 | 4 | | | | | | | | |
| | Kim Grant | 4 | 4 | | Tracy Singian | 1 | 1 | | | | |
| | | | | | Lilia Osterloh | 6 | 6 | | | | |
| | Lilia Osterloh | 6 | 6 | | Lilia Osterloh | 6 | 6 | | | | |
| 7 | Aleksandra Olsza | 2 | 1 | | | | | | | | |

### Second qualifier

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Pavlina Stoyanova | 2 | 3 | | | | | | | | | | |
| | Mashona Washington | 6 | 6 | | | | | | | | | | |
| | Mashona Washington | 6 | 6 | | | Mashona Washington | 2 | 6 | 6 | | | | |
| | | | | | | Meilen Tu | 6 | 1 | 3 | | | | |
| | Meilen Tu | 6 | 6 | | | Meilen Tu | 6 | 1 | 3 | | | | |
| | Annabel Ellwood | 4 | 3 | | | | | | | | | | |
| | Annabel Ellwood | 4 | 3 | | | | | | | Mashona Washington | 4 | 6 | 6 |
| | | | | | | | | | | Kristine Kunce | 6 | 1 | 1 |
| | Francesca Lubiani | 6$^4$ | 6 | 2 | | | | | | | | | | Kristine Kunce | 6 | 1 | 1 |
| | Kristine Kunce | 7$^7$ | 3 | 6 | | | | | | | | | |
| | Kristine Kunce | 7$^7$ | 3 | 6 | | Kristine Kunce | 3 | 6 | 6 | | | | |
| | | | | | 5 | Jolene Watanabe | 6 | 2 | 4 | | | | |
| | Esmé de Villiers | 2 | 1 | | 5 | Jolene Watanabe | 6 | 2 | 4 | | | | |
| 5 | Jolene Watanabe | 6 | 6 | | | | | | | | | | |

### Third qualifier

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 8 | Nana Miyagi | 6 | 7 | | | | | | | | | | |
| | Jill Craybas | 3 | 5 | | | | | | | | | | |
| | Jill Craybas | 3 | 5 | | 8 | Nana Miyagi | 7 | 6 | | | | | |
| | | | | | | Jennifer Hopkins | 5 | 2 | | | | | |
| | Jennifer Hopkins | 7$^7$ | 6 | | | Jennifer Hopkins | 5 | 2 | | | | | |
| | Jelena Dokić | 6$^4$ | 4 | | | | | | | | | | |
| | Jelena Dokić | 6$^4$ | 4 | | | | | | 8 | Nana Miyagi | 6 | 4 | 6 |
| | | | | | | | | | | Hila Rosen | 4 | 6 | 0 |
| | Hila Rosen | 1 | 6 | 6 | | | | | | | | | | Hila Rosen | 4 | 6 | 0 |
| | Julie Scott | 6 | 4 | 2 | | | | | | | | | |
| | Julie Scott | 6 | 4 | 2 | | Hila Rosen | 6 | 6 | | | | | |
| | | | | | | Jackie Trail | 4 | 4 | | | | | |
| | Jackie Trail | 6 | 7$^8$ | | | Jackie Trail | 4 | 4 | | | | | |
| 3 | Sandra Cacic | 2 | 6$^6$ | | | | | | | | | | |

### Fourth qualifier

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 6 | Karin Miller | 5 | 1 | | | | | | | | | |
| | Erika deLone | 7 | 6 | | | | | | | | | |
| | Erika deLone | 7 | 6 | | | Erika deLone | 5 | 1 | | | | |
| | | | | | | Linda Wild | 7 | 6 | | | | |
| | Linda Wild | 6 | 6$^8$ | 6 | | Linda Wild | 7 | 6 | | | | |
| | Debbie Graham | 4 | 7$^{10}$ | 3 | | | | | | | | |
| | Debbie Graham | 4 | 7$^{10}$ | 3 | | | | | | Linda Wild | 1 | 2 |
| | | | | | | | | | 2 | Nicole Pratt | 6 | 6 |
| | Katrina Nimmers | 6 | 7$^7$ | | | | | | | | | | 2 | Nicole Pratt | 6 | 6 |
| | Megan Russell | 4 | 6$^4$ | | | | | | | | | |
| | Megan Russell | 4 | 6$^4$ | | | Katrina Nimmers | 0 | 0 | | | | |
| | | | | | 2 | Nicole Pratt | 6 | 6 | | | | |
| | Alicia Molik | 2 | 1 | | 2 | Nicole Pratt | 6 | 6 | | | | |
| 2 | Nicole Pratt | 6 | 6 | | | | | | | | | |