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| Tampa $10,000 Hard | Jan 18 2004 |
| 1 | Nannan Liu(8) - Zguna | 6-2 4-6 6-3 |
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| Boca Raton $10,000 Hard | Jan 25 2004 |
| Qual 1 | Zguna(2) - Shannon Robinson-WC | 6-1 6-1 |
| Qual 2 | Christina Obermoser - Zguna(2) | 0-6 4-4 |
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| Jackson $25,000 Clay | Apr 18 2004 |
| Qual 1 | Zguna(15) - Shannon Robinson | 6-1 6-0 |
| Qual 2 | Zguna(15) - Tanner Cochran(3) | 4-6 6-2 6-4 |
| 1 | Shuai Peng(1) - Zguna-Q | 6-3 6-3 |
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| Fed Cup Group II | May 1 2004 |
| | Claudine Schaul-lux - Zguna | 6-3 6-3 |
| | Zguna - Salome Devidze-geo | 6-3 7-62 |
| | Emma Laine-fin - Zguna | 7-65 6-1 |
| | Kelly Liggan-irl - Zguna | 6-3 6-4 |
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| Hamilton $25,000 Clay | Jun 13 2004 |
| 1 | Zguna(7) - Jodi Kenoyer | 7-60 5-7 6-0 |
| 2 | Alexandra Mueller - Zguna(7) | 6-2 6-1 |
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| Mont-Tremblant $10,000 Clay | Jun 20 2004 |
| 1 | Melanie Gloria - Zguna(5) | 6-0 4-6 6-1 |
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| College Park $25,000 Hard | Jul 11 2004 |
| Qual 1 | Zguna(9) - Amy Dillingham | 6-0 6-1 |
| Qual 2 | Tomoko Dokei(7) - Zguna(9) | 6-4 6-2 |
| 1 | Tomoko Dokei-Q - Zguna-LL | 7-5 6-4 |
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| Baltimore $10,000 Hard | Jul 18 2004 |
| 1 | Antonia Matic(2) - Zguna | 7-64 3-6 6-1 |
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| St.Joseph $10,000 Hard | Aug 1 2004 |
| 1 | Nina Munch-Soegaard-Q - Zguna(3) | 6-4 7-5 |
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| Cincinnati Tier III Hard | Aug 22 2004 |
| Qual 1 | Séverine Beltrame(1) - Zguna | 6-2 6-3 |
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| Ashland $25,000 Hard | Sep 19 2004 |
| 1 | Marie-Eve Pelletier(4) - Zguna | 6-2 6-2 |
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| Tunica Resorts $25,000 Clay | Sep 26 2004 |
| 1 | Zguna - Soledad Esperon(5) | 6-2 6-4 |
| 2 | Zguna - Erica Biro | 6-2 4-6 7-66 |
| QF | Zguna - Julie Ditty(4) | 6-4 6-1 |
| SF | Kelly McCain(1) - Zguna | 6-2 6-1 |
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| Birmingham $25,000 Clay | Oct 3 2004 |
| 1 | Olga Puchkova(1) - Zguna | 6-3 7-5 |
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| Lafayette $25,000 Clay | Oct 10 2004 |
| Qual 1 | Zguna(4) - Courtney Vernon | 6-4 4-6 6-2 |
| Qual 2 | Tetiana Luzhanska(15) - Zguna(4) | 7-62 6-2 |
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| Cary $50,000 Hard | Oct 24 2004 |
| Qual 1 | Zguna - Jennifer Tuchband-WC | 6-3 6-3 |
| Qual 2 | Cory Ann Avants(3) - Zguna | 6-1 6-4 |
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| Tucson $50,000 Hard | Nov 21 2004 |
| Qual 1 | Mandy Minella(1) - Zguna | 6-0 7-5 |
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| Palm Beach Gardens $50,000 Clay | Dec 5 2004 |
| Qual 1 | Mandy Minella(8) - Zguna | 6-3 6-1 |