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| Waikoloa $50,000 Hard | Jan 28 2007 |
| 1 | Maria Jose Argeri(7) - Nguyen | 6-1 7-5 |
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| Palm Desert $25,000 Hard | Feb 4 2007 |
| Qual 1 | Nguyen - Vasilisa Davydova | 6-1 6-4 |
| Qual 2 | Nguyen - Melanie Oudin | 6-4 6-3 |
| Qual 3 | Story Tweedie-Yates(2) - Nguyen | 6-4 6-3 |
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| St. Paul $50,000 Hard | Feb 18 2007 |
| Qual 1 | Nguyen - Tiya Rolle | 6-3 6-2 |
| Qual 2 | Nguyen - Anna Bartenstein(6) | 6-2 4-6 6-2 |
| Qual 3 | Olga Govortsova(2) - Nguyen | 6-1 6-0 |
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| Orange $25,000 Hard | Mar 18 2007 |
| Qual 1 | Nguyen - Thien-Trang Nguyen | 6-4 6-2 |
| Qual 2 | Nguyen - Lauren Breadmore(8) | 6-1 6-0 |
| Qual 3 | Naomi Cavaday(15) - Nguyen | 6-1 6-1 |
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| Redding $25,000 Hard | Mar 25 2007 |
| Qual 1 | Ekaterina Afinogenova(5) - Nguyen | 6-0 4-6 6-3 |
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| Sea Island $50,000 Clay | Apr 29 2007 |
| Qual 1 | Nguyen - Christie Nunnemann | 6-0 6-0 |
| Qual 2 | Irena Pavlovic(4) - Nguyen | 4-6 6-2 6-4 |
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| Indian Harbour Beach $50,000 Clay | May 13 2007 |
| Qual 1 | Nguyen - Mami Inoue | 6-2 6-3 |
| Qual 2 | Chanelle Scheepers(3) - Nguyen | 6-2 6-0 |
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| Houston $10,000 Hard | Jun 3 2007 |
| 1 | Nguyen(4) - Alexandra Anghelescu | 6-1 6-1 |
| 2 | Nguyen(4) - Saori Karikomi | 6-2 6-3 |
| QF | Asia Muhammad - Nguyen(4) | 6-3 7-68 |
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| Edmond $10,000 Hard | Jul 1 2007 |
| 1 | Nicole Leimbach(5) - Nguyen | 6-4 7-5 |
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| Albuquerque $75,000 Hard | Sep 23 2007 |
| Qual 1 | Alexandra Stevenson(8) - Nguyen | 6-4 4-3 |
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| San Francisco $50,000 Hard | Oct 14 2007 |
| Qual 1 | Hilary Barte(4) - Nguyen | 6-74 7-61 5-3 |
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| Augusta $25,000 Hard | Oct 28 2007 |
| Qual 1 | Heidi El Tabakh(4) - Nguyen | 7-61 6-2 |