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| Augusta $25,000 Hard | Apr 4 2004 |
| 1 | Marcio - Nina Duebbers | 7-65 4-0 |
| 2 | Marie-Eve Pelletier - Marcio | 6-2 6-0 |
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| Dothan $75,000 Clay | Apr 25 2004 |
| Qual 1 | Marcio - Andrea Remynse-WC | 6-3 6-4 |
| Qual 2 | Svetlana Krivencheva(9) - Marcio | 6-2 7-5 |
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| Raleigh $50,000 Clay | May 9 2004 |
| Qual 1 | Varvara Lepchenko - Marcio | 6-4 6-0 |
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| Louisville $50,000 Hard | Aug 8 2004 |
| 1 | Vanina Garcia Sokol - Marcio-WC | 3-6 6-4 6-0 |
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| Ashland $25,000 Hard | Sep 19 2004 |
| Qual 1 | Marcio(5) - Danielle Spacek | 6-0 6-0 |
| Qual 2 | Marcio(5) - Laura Ritchey-Thomas(9) | 7-66 6-3 |
| 1 | Marcio-Q - Amanda Johnson-WC | 6-3 6-2 |
| 2 | Kelly McCain(2) - Marcio-Q | 6-1 6-4 |
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| Albuquerque $75,000 Hard | Sep 26 2004 |
| Qual 1 | Maja Kovacek - Marcio | 6-2 6-4 |
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| Troy $50,000 Hard | Oct 3 2004 |
| Qual 1 | Marcio - Luisa-Elfride Lopez | 6-0 6-1 |
| Qual 2 | Marcio - Milangela Morales(4) | 6-4 6-2 |
| Qual 3 | Anne Mall(7) - Marcio | 6-3 3-6 6-4 |
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| Ashburn $50,000 Hard | Oct 17 2004 |
| Qual 1 | Marcio - Amy Dillingham | 6-0 6-0 |
| Qual 2 | Marcio - Salome Devidze(2) | 6-4 6-4 |
| Qual 3 | Anne Mall - Marcio | 6-3 6-4 |
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| Cary $50,000 Hard | Oct 24 2004 |
| Qual 1 | Marcio - Lina Stanciute | 6-2 6-4 |
| Qual 2 | Marcio - Ruxandra Dragomir Ilie(8) | 7-5 6-1 |
| Qual 3 | Neha Uberoi - Marcio | 6-3 4-6 6-3 |
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| Tucson $50,000 Hard | Nov 21 2004 |
| Qual 1 | Marcio - Ekaterina Afinogenova | 0-6 6-2 7-5 |
| Qual 2 | Marcio - Svetlana Krivencheva(6) | 6-2 6-4 |
| Qual 3 | Marcio - Mandy Minella(1) | 6-3 5-7 7-66 |
| 1 | Marcio-Q - Neha Uberoi-WC | 7-60 7-5 |
| 2 | Marcio-Q - Lindsay Lee-Waters(2) | walkover |
| QF | Marcio-Q - Tiffany Dabek | 6-75 6-4 6-0 |
| SF | Jamea Jackson(8) - Marcio-Q | 6-2 6-1 |