| | |
| Tampa $10,000 Hard | Jan 16 2005 |
| Qual 1 | Nguyen - Laura Rocchi(12) | 6-3 6-1 |
| Qual 2 | Nguyen - Ana Maria Moura-WC | 6-2 6-3 |
| Qual 3 | Vojislava Lukic(8) - Nguyen | 6-4 7-5 |
| | |
| Miami $10,000 Hard | Jan 23 2005 |
| Qual 1 | Nguyen - Roxana Alexandru | 6-0 6-0 |
| Qual 2 | Nguyen - Rita Vukov(13) | 6-2 6-3 |
| Qual 3 | Nguyen - Laurence Combes(2) | 6-3 6-2 |
| 1 | Ryoko Fuda(4) - Nguyen-Q | 6-0 6-1 |
| | |
| Waikoloa $50,000 Hard | Jan 30 2005 |
| Qual 1 | Nguyen - Ekaterina Afinogenova(1) | 6-4 7-5 |
| Qual 2 | Bianca Acquistapace - Nguyen | walkover |
| | |
| Orange $50,000 Hard | Mar 20 2005 |
| Qual 1 | Maria-Fernanda Alves(7) - Nguyen-WC | 6-3 4-6 6-3 |
| | |
| Redding $25,000 Hard | Mar 27 2005 |
| Qual 1 | Megan Falcon - Nguyen | 4-6 6-1 6-2 |
| | |
| Charlottesville $50,000 Clay | May 15 2005 |
| Qual 1 | Nguyen - Daniela Kix(7) | 6-4 6-4 |
| Qual 2 | Sofia Melikishvili - Nguyen | 6-1 6-2 |
| | |
| Houston $10,000 Hard | May 29 2005 |
| 1 | Bruna Colosio - Nguyen | 6-2 6-4 |
| | |
| Los Gatos $50,000 Hard | Jul 3 2005 |
| Qual 1 | Sofia Melikishvili(6) - Nguyen | 6-3 7-5 |
| | |
| Louisville $50,000 Hard | Jul 17 2005 |
| Qual 1 | Diana Ospina(8) - Nguyen | 6-4 6-4 |
| | |
| Hammond $25,000 Hard | Jul 24 2005 |
| Qual 1 | Nguyen(15) - Whitney Jones | 6-1 6-0 |
| Qual 2 | Nguyen(15) - Christina Fusano(7) | 6-3 6-3 |
| 1 | Aleke Tsoubanos-Q - Nguyen-Q | 5-4 |
| | |
| Albuquerque $75,000 Hard | Sep 25 2005 |
| Qual 1 | Kristen Schlukebir(2) - Nguyen | 6-2 6-1 |
| | |
| Ashland $50,000 Hard | Oct 2 2005 |
| Qual 1 | Nguyen - Becky Brown | 6-0 6-1 |
| Qual 2 | Nguyen - Sarah Fansler(5) | 6-4 7-5 |
| Qual 3 | Nguyen - Stacia Fonseca(3) | 3-6 6-2 6-3 |
| 1 | Nguyen-Q - Aleke Tsoubanos | 7-610 6-2 |
| 2 | Stephanie Dubois(5) - Nguyen-Q | 6-1 6-4 |
| | |
| Tucson $75,000 Hard | Nov 20 2005 |
| Qual 1 | Tiffany Dabek(1) - Nguyen | 6-2 6-2 |