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| Belfort $25,000 Hard | Feb 1 2004 |
| 1 | Topalova - Renata Voracova(2) | 6-4 1-6 7-67 |
| 2 | Topalova - Rosa Maria Andres Rodriguez | 6-4 7-5 |
| QF | Marta Domachowska(8) - Topalova | 6-2 6-4 |
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| Sunderland $25,000 Hard | Feb 15 2004 |
| 1 | Topalova - Jane O'Donoghue(7) | 6-4 6-0 |
| 2 | Anna Chakvetadze-Q - Topalova | 6-2 6-2 |
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| Redbridge $25,000 Hard | Feb 22 2004 |
| 1 | Virginie Pichet(3) - Topalova | 5-7 6-4 7-5 |
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| Buchen $10,000 Hard | Mar 7 2004 |
| 1 | Topalova(5) - Petra Russegger | 6-4 6-1 |
| 2 | Topalova(5) - Hannah Collin-Q | 6-3 6-3 |
| QF | Amanda Janes(2) - Topalova(5) | 6-74 6-2 6-1 |
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| Athens $25,000 Hard | Mar 28 2004 |
| 1 | Topalova - Christina Zachariadou-WC | 6-4 6-2 |
| 2 | Topalova - Kyra Nagy(6) | 6-0 7-64 |
| QF | Topalova - Vanina Garcia Sokol-LL | 6-1 6-3 |
| SF | Katerina Bohmova-Q - Topalova | 6-4 2-6 6-0 |
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| Biarritz $25,000 Clay | Apr 18 2004 |
| Qual 1 | Topalova(1) - Céline Cattanéo | 6-0 6-3 |
| Qual 2 | Topalova(1) - Yvonne Meusburger(10) | 6-1 6-4 |
| 1 | Bahia Mouhtassine-Q - Topalova-Q | 1-6 6-3 6-2 |
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| Taranto $25,000 Clay | May 2 2004 |
| 1 | Alice Canepa-WC - Topalova(8) | 3-6 7-5 6-3 |
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| Stockholm $25,000 Clay | May 16 2004 |
| 1 | Virginie Pichet(2) - Topalova | 6-3 6-1 |
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| Vaduz $25,000 Clay | Jun 13 2004 |
| 1 | Topalova - Adriana Barna(5) | 6-4 4-6 7-5 |
| 2 | Patricia Wartusch - Topalova | 6-4 3-6 6-2 |
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| Lenzerheide $25,000 Clay | Jun 20 2004 |
| 1 | Michelle Gerards - Topalova(5) | 6-3 3-6 7-5 |
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| Bastad $25,000 Clay | Jun 27 2004 |
| 1 | Topalova(7) - Caroline Maes | 7-65 4-6 6-2 |
| 2 | Topalova(7) - Oana Elena Golimbioschi | 6-0 6-0 |
| QF | Topalova(7) - Ekaterina Bychkova | 6-4 7-63 |
| SF | Lenka Tvaroskova - Topalova(7) | 6-2 6-1 |
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| Stuttgart-Vaihingen $25,000 Clay | Jul 4 2004 |
| 1 | Topalova - Darya Kustova-Q | 7-63 7-5 |
| 2 | Topalova - Angelika Roesch | 6-3 6-1 |
| QF | Topalova - Yvonne Meusburger(5) | 7-66 0-6 6-2 |
| SF | Martina Muller - Topalova | 6-1 6-2 |
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| Fed Cup | Jul 10 2004 |
| | Topalova - Saori Obata-jpn | 7-5 3-0 |
| | Shinobu Asagoe-jpn - Topalova | 6-1 6-73 6-4 |
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| Innsbruck $50,000 Clay | Jul 25 2004 |
| Qual 1 | Topalova(3) - Sarah Raab | 7-63 3-6 6-1 |
| Qual 2 | Carmen Klaschka - Topalova(3) | 1-6 7-5 7-5 |
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| Petange $25,000 Clay | Aug 1 2004 |
| 1 | Michelle Gerards - Topalova(6) | 4-6 7-63 6-2 |
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| Hechingen $25,000 Clay | Aug 8 2004 |
| 1 | Dominika Nociarova - Topalova(8) | 6-3 6-1 |
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| US Open Hard | Sep 12 2004 |
| Qual 1 | Topalova - Paula Garcia | 6-1 1-6 6-4 |
| Qual 2 | Topalova - Anastasia Rodionova | 6-3 5-1 |
| Qual 3 | Nannan Liu - Topalova | 7-65 6-4 |
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| Sofia $25,000 Clay | Sep 19 2004 |
| 1 | Tsvetana Pironkova - Topalova(7) | 6-2 6-1 |
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| Glasgow $25,000 Hard | Oct 10 2004 |
| 1 | Topalova(7) - Valentina Sassi | 6-3 6-4 |
| 2 | Joanna Sakowicz-Kostecka - Topalova(7) | 6-1 3-1 |
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| Sunderland $25,000 Hard | Oct 17 2004 |
| 1 | Sabine Klaschka - Topalova | 6-2 5-7 7-5 |
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| Zurich Tier I Hard | Oct 24 2004 |
| Qual 1 | Denisa Chladkova - Topalova-WC | 6-2 6-2 |
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| Istanbul $25,000 Hard | Oct 31 2004 |
| 1 | Topalova(5) - Stephanie Rizzi-Q | 6-1 0-6 7-64 |
| 2 | Ipek Senoglu - Topalova(5) | 7-65 7-5 |
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| St. Katelijine-Waver $25,000 Hard | Nov 7 2004 |
| 1 | Tatsiana Uvarova-Q - Topalova | 4-6 6-0 6-3 |
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| Opole $25,000 Carpet | Nov 28 2004 |
| 1 | Elena Vesnina-Q - Topalova | 6-3 6-2 |