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| Tampa $10,000 Hard | Jan 16 2005 |
| Qual 1 | Tsoubanos(10) - Katie McGlennen-WC | 6-2 6-0 |
| Qual 2 | Lauren Albanese-WC - Tsoubanos(10) | 2-6 6-4 6-4 |
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| Miami $10,000 Hard | Jan 23 2005 |
| Qual 1 | Tiffany Eklov - Tsoubanos(9) | 6-3 6-3 |
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| Clearwater $10,000 Hard | Jan 30 2005 |
| Qual 1 | Tsoubanos(6) - Lauren Shumate | 6-0 6-1 |
| Qual 2 | Tsoubanos(6) - Angelina Gabueva-WC | 6-4 6-1 |
| Qual 3 | Story Tweedie-Yates(12) - Tsoubanos(6) | 6-3 6-1 |
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| Rockford $25,000 Hard | Feb 6 2005 |
| Qual 1 | Tsoubanos-WC - Sarah Riske(14) | 6-4 6-3 |
| Qual 2 | Tsoubanos-WC - Iryna Brémond(6) | 7-65 7-64 |
| 1 | Carly Gullickson-WC - Tsoubanos-Q | 6-2 6-3 |
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| Augusta $25,000 Hard | Apr 3 2005 |
| Qual 1 | Lina Stanciute(2) - Tsoubanos | 6-2 6-3 |
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| Tunica Resorts $25,000 Clay | Apr 10 2005 |
| Qual 1 | Betina Jozami(16) - Tsoubanos | 6-0 6-3 |
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| Jackson $25,000 Clay | Apr 17 2005 |
| Qual 1 | Ahsha Rolle(2) - Tsoubanos | 6-2 6-0 |
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| Lafayette $50,000 Clay | May 1 2005 |
| Qual 1 | Tina Schiechtl - Tsoubanos | 6-2 6-2 |
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| Charlottesville $50,000 Clay | May 15 2005 |
| Qual 1 | Anne Mall(5) - Tsoubanos | 6-3 6-0 |
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| Houston $10,000 Hard | May 29 2005 |
| 1 | Tsoubanos(7) - Chrissie Seredni | 6-2 6-3 |
| 2 | Tsoubanos(7) - Ana Maria Moura-Q | 6-4 6-3 |
| QF | Raquel Kops-Jones(4) - Tsoubanos(7) | 6-2 6-4 |
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| Hilton Head Island $10,000 Hard | Jun 5 2005 |
| 1 | Tsoubanos - Marine Nizri Spiegel-Q | 7-65 6-2 |
| 2 | Tsoubanos - Emi Sakurai-Q | 7-5 5-7 6-1 |
| QF | Sofia Melikishvili(5) - Tsoubanos | 6-3 6-2 |
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| Allentown $25,000 Hard | Jun 12 2005 |
| Qual 1 | Tsoubanos(7) - Adrienne Green | 6-0 6-0 |
| Qual 2 | Tsoubanos(7) - Megha Vakharia(10) | 6-0 6-1 |
| 1 | Julie Ditty(6) - Tsoubanos-Q | 6-2 6-2 |
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| Los Gatos $50,000 Hard | Jul 3 2005 |
| Qual 1 | Tsoubanos - Jennifer Tuchband | 7-5 2-6 6-2 |
| Qual 2 | Tetiana Luzhanska(9) - Tsoubanos | 6-4 6-4 |
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| Louisville $50,000 Hard | Jul 17 2005 |
| Qual 1 | Dimana Krastevitch(6) - Tsoubanos | 6-3 6-3 |
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| Hammond $25,000 Hard | Jul 24 2005 |
| Qual 1 | Tsoubanos(8) - Anna-Maria Doan | 6-0 6-1 |
| Qual 2 | Tsoubanos(8) - Laura Ritchey-Thomas(11) | 6-4 6-2 |
| 1 | Tsoubanos-Q - Kim Anh Nguyen-Q | 5-4 |
| 2 | Tiffany Eklov - Tsoubanos-Q | 6-3 7-5 |
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| Lexington $50,000 Hard | Jul 31 2005 |
| Qual 1 | Lauren Breadmore - Tsoubanos | 6-4 6-3 |
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| Washington $75,000 Hard | Aug 7 2005 |
| Qual 1 | Napaporn Tongsalee(1) - Tsoubanos | 7-5 3-6 6-1 |
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| Albuquerque $75,000 Hard | Sep 25 2005 |
| Qual 1 | Story Tweedie-Yates - Tsoubanos | 6-3 6-3 |
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| Ashland $50,000 Hard | Oct 2 2005 |
| 1 | Kim Anh Nguyen-Q - Tsoubanos | 7-610 6-2 |
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| Troy $50,000 Hard | Oct 9 2005 |
| Qual 1 | Sophie Lefevre - Tsoubanos | 7-64 3-6 7-5 |
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| San Francisco $50,000 Hard | Oct 16 2005 |
| Qual 1 | Sophie Lefevre - Tsoubanos | 6-4 6-4 |
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| Pittsburgh $75,000 Hard | Nov 13 2005 |
| Qual 1 | Alison Riske - Tsoubanos | 7-65 6-1 |
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| Palm Beach Gardens $50,000 Clay | Dec 4 2005 |
| Qual 1 | Tetiana Luzhanska - Tsoubanos | 6-0 6-4 |