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| Waikoloa $50,000 Hard | Jan 30 2005 |
| Qual 1 | Tezuka(2) - Chrissie Seredni | 6-1 6-1 |
| Qual 2 | Tezuka(2) - Aneta Soukup | 4-0 |
| Qual 3 | Tezuka(2) - Kumiko Iijima(5) | 0-6 6-2 7-62 |
| 1 | Tezuka-Q - Teodora Mircic-Q | 1-6 6-1 6-3 |
| 2 | Edina Gallovits-Hall(3) - Tezuka-Q | 6-0 6-2 |
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| Hyderabad Tier IV Hard | Feb 13 2005 |
| Qual 1 | Tezuka - Punam Reddy | 6-1 6-4 |
| Qual 2 | Tatiana Poutchek(4) - Tezuka | 7-5 7-64 |
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| Bendigo $50,000 Hard | Feb 27 2005 |
| 1 | Kyung-Mi Chang - Tezuka | 6-1 |
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| Tunica Resorts $25,000 Clay | Apr 10 2005 |
| Qual 1 | Tezuka(7) - Naoko Horikawa | 6-1 6-0 |
| Qual 2 | Heidi El Tabakh(12) - Tezuka(7) | 6-2 6-4 |
| 1 | Katarina Kachlikova - Tezuka-LL | 6-4 6-2 |
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| Jackson $25,000 Clay | Apr 17 2005 |
| Qual 1 | Tezuka(10) - Aneta Soukup | 3-6 6-3 3-0 |
| Qual 2 | Tetiana Luzhanska - Tezuka(10) | 6-1 6-3 |
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| Dothan $75,000 Clay | Apr 24 2005 |
| Qual 1 | Mariana Correa - Tezuka | 4-6 6-4 6-3 |
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| Lafayette $50,000 Clay | May 1 2005 |
| Qual 1 | Tezuka - Abbey Angelle | 6-0 6-0 |
| Qual 2 | Tezuka - Anna Bastrikova(4) | 7-5 6-4 |
| Qual 3 | Ekaterina Afinogenova(8) - Tezuka | 6-2 6-2 |
| 1 | Edina Gallovits-Hall(7) - Tezuka-LL | 6-0 6-1 |
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| Raleigh $75,000 Clay | May 8 2005 |
| Qual 1 | Ansley Cargill - Tezuka | 6-3 5-7 6-2 |
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| Ho Chi Minh City $25,000 Hard | May 22 2005 |
| 1 | Akgul Amanmuradova(3) - Tezuka | 6-3 6-3 |
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| Shanghai $25,000 Hard | May 29 2005 |
| 1 | Estefania Balda-Q - Tezuka | 6-4 6-0 |
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| Nanjing $25,000 Hard | Jun 5 2005 |
| 1 | Jie Hao - Tezuka | 6-3 7-65 |
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| Beijing $50,000 Hard | Jun 12 2005 |
| 1 | Xinyun Han - Tezuka | 6-3 7-5 |
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| Incheon $25,000 Hard | Jun 19 2005 |
| Qual 1 | Tezuka(5) - Natasha Kersten | 3-6 6-1 7-5 |
| Qual 2 | Tezuka(5) - Kaori Onishi | 6-2 6-0 |
| Qual 3 | Su-Wei Hsieh(10) - Tezuka(5) | 6-3 6-3 |
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| Seogwipo $10,000 Hard | Jul 17 2005 |
| 1 | Se-Na Lee-Q - Tezuka(6) | 7-5 6-2 |
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| Kurume $25,000 Carpet | Jul 24 2005 |
| 1 | Tezuka - Maki Arai | 6-4 3-6 6-1 |
| 2 | Ayumi Morita(7) - Tezuka | 7-5 6-1 |
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| Wuxi $25,000 Hard | Aug 14 2005 |
| Qual 1 | Tezuka(4) - Yun-Qiao Ren | 6-2 6-1 |
| Qual 2 | Tezuka(4) - Jing Lu | 6-3 6-2 |
| Qual 3 | Wen-Hao Wu(12) - Tezuka(4) | 6-2 2-6 6-2 |
| 1 | Miho Saeki-Q - Tezuka-LL | 6-4 6-3 |
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| Nanjing $25,000 Hard | Aug 21 2005 |
| Qual 1 | Tezuka(4) - Jing Lu | 6-2 6-0 |
| Qual 2 | Tezuka(4) - Xuan-Yu Guo | 7-5 6-1 |
| Qual 3 | Tezuka(4) - Yue Yu | 6-3 6-0 |
| 1 | Shengnan Sun - Tezuka-Q | 6-3 6-3 |
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| Beijing $50,000 Hard | Sep 11 2005 |
| 1 | Ding Ding-Q - Tezuka | 6-2 6-1 |
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| Ibaraki $25,000 Hard | Sep 25 2005 |
| 1 | Tezuka - Lizaan du Plessis-Q | 7-5 6-1 |
| 2 | Tezuka - Akari Inoue-Q | 5-7 6-1 7-5 |
| QF | Erika Takao - Tezuka | 6-2 6-3 |
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| Lyneham $25,000 Clay | Oct 16 2005 |
| 1 | Daniella Jeflea(6) - Tezuka | 6-3 6-2 |
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| Tokyo $10,000 Hard | Oct 30 2005 |
| 1 | Tezuka(7) - Chiaki Okadaue-Q | 6-1 7-65 |
| 2 | Tezuka(7) - Tomoko Taira-LL | 6-2 6-1 |
| QF | Yurika Sema(1) - Tezuka(7) | 7-5 2-6 6-4 |
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| Sutama $25,000 Clay | Nov 6 2005 |
| 1 | Tezuka - Natsumi Hamamura(8) | 7-5 6-3 |
| 2 | Tezuka - Miki Miyamura | 6-2 6-3 |
| QF | Kristina Czafikova(4) - Tezuka | 7-5 6-2 |
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| Jakarta $25,000 Hard | Nov 13 2005 |
| 1 | Tezuka - Maja Kambic-Q | 7-5 6-3 |
| 2 | Chia-Jung Chuang(7) - Tezuka | 6-4 6-4 |
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| Mount Gambier $25,000 Hard | Nov 27 2005 |
| Qual 1 | Tezuka(2) | bye |
| Qual 2 | Tezuka(2) - Neda Kozic | 6-75 6-1 6-3 |
| Qual 3 | Tezuka(2) - Josanne Van Bennekom(15) | 6-3 6-4 |
| 1 | Mireille Dittmann - Tezuka-Q | 6-1 6-1 |