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| Midland $75,000 Hard | Feb 15 2004 |
| 1 | Vaidisova-WC - Cory Ann Avants-WC | 6-3 3-6 7-66 |
| 2 | Vaidisova-WC - Galina Voskoboeva | 6-2 6-4 |
| QF | Vaidisova-WC - Martina Sucha(1) | 6-0 6-2 |
| SF | Vaidisova-WC - Gisela Dulko(6) | 6-4 6-2 |
| F | Jill Craybas(2) - Vaidisova-WC | 6-2 6-4 |
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| Columbus $25,000 Hard | Feb 22 2004 |
| 1 | Vaidisova - Svetlana Krivencheva | 6-1 6-1 |
| 2 | Vaidisova - Sandra Kloesel(6) | 6-3 6-2 |
| QF | Vaidisova - Petra Rampre | 6-3 6-2 |
| SF | Vaidisova - Maria Goloviznina | 7-5 6-2 |
| F | Vaidisova - Shuai Peng | 7-62 7-5 |
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| Acapulco Tier III Clay | Mar 7 2004 |
| 1 | Vaidisova - Lubomira Kurhajcova | 6-6 |
| 2 | Vaidisova - Shinobu Asagoe(2) | 6-2 6-3 |
| QF | Flavia Pennetta - Vaidisova | 6-4 6-3 |
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| Key Biscayne Tier I Hard | Apr 4 2004 |
| 1 | Lubomira Kurhajcova - Vaidisova-WC | 6-2 6-4 |
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| Roland Garros Clay | Jun 6 2004 |
| Qual 1 | Vaidisova - Natalia Gussoni(19) | 3-6 7-5 6-1 |
| Qual 2 | Vaidisova - Yan Ze Xie | 6-78 6-1 6-2 |
| Qual 3 | Teryn Ashley(3) - Vaidisova | 7-66 6-3 |
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| Wimbledon Grass | Jul 4 2004 |
| Qual 1 | Maret Ani - Vaidisova | 6-2 6-4 |
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| Vancouver Tier V Hard | Aug 15 2004 |
| Qual 1 | Vaidisova(3) - Katarina Zoricic-WC | 6-3 4-1 |
| Qual 2 | Vaidisova(3) - Jin-Hee Kim | 6-1 6-2 |
| Qual 3 | Vaidisova(3) - Anousjka van Exel | 6-3 6-3 |
| 1 | Vaidisova-Q - Abigail Spears | 6-4 6-4 |
| 2 | Vaidisova-Q - Marissa Irvin(5) | 7-5 4-6 6-4 |
| QF | Vaidisova-Q - Milagros Sequera(2) | 6-4 6-1 |
| SF | Vaidisova-Q - Alina Jidkova(3) | 7-5 3-6 6-4 |
| F | Vaidisova-Q - Laura Granville(4) | 2-6 6-4 6-2 |
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| US Open Hard | Sep 12 2004 |
| Qual 1 | Vaidisova(19) - Christina Wheeler | 6-1 6-3 |
| Qual 2 | Vaidisova(19) - Galina Voskoboeva | 6-1 6-0 |
| Qual 3 | Vaidisova(19) - Nuria Llagostera Vives(3) | 6-4 7-5 |
| 1 | Justine Henin(1) - Vaidisova-Q | 6-1 6-4 |
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| Japan Open Tier III Hard | Oct 10 2004 |
| 1 | Vaidisova-WC - Yoon-Jeong Cho | 6-3 6-4 |
| 2 | Vaidisova-WC - Tatiana Golovin(2) | 6-4 3-6 6-4 |
| QF | Klara Zakopalova(7) - Vaidisova-WC | 6-3 6-0 |
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| Tashkent Tier IV Hard | Oct 17 2004 |
| 1 | Vaidisova - Cara Black | 6-4 6-3 |
| 2 | Vaidisova - Anna-Lena Groenefeld(6) | 6-2 6-3 |
| QF | Vaidisova - Arantxa Parra Santonja(4) | 5-7 6-4 6-0 |
| SF | Vaidisova - Meghann Shaughnessy(2) | 6-1 5-7 7-61 |
| F | Vaidisova - Virginie Razzano(9) | 5-7 6-3 6-2 |
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| Philadelphia Tier II Hard | Nov 7 2004 |
| 1 | Amy Frazier - Vaidisova-WC | 6-2 7-5 |