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A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
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| Kofu $10,000 Hard | Mar 28 2010 |
| 1 | Oka(4) - Yumi Nakano | 6-4 6-4 |
| 2 | Oka(4) - Erika Takao | 7-62 6-0 |
| QF | Oka(4) - Jia-Jing Lu | 6-2 6-2 |
| SF | Sachie Ishizu - Oka(4) | 7-63 1-6 6-4 |
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| Gifu $50,000 Hard | May 2 2010 |
| 1 | Ryoko Fuda(7) - Oka | 6-3 6-3 |
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| Fukuoka $50,000 Carpet | May 9 2010 |
| 1 | Junri Namigata(3) - Oka | 6-2 6-0 |
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| Kurume $50,000 Carpet | May 16 2010 |
| 1 | Oka - Misa Eguchi | 6-2 6-2 |
| 2 | So-Jung Kim(5) - Oka | 7-5 3-6 6-4 |
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| Karuizawa $25,000 Carpet | May 23 2010 |
| 1 | Shiho Hisamatsu(7) - Oka | 6-2 2-6 6-0 |
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| Kusatsu $25,000 Carpet | May 30 2010 |
| 1 | Oka - Seiko Okamoto | 7-67 4-6 6-4 |
| 2 | Junri Namigata(1) - Oka | 7-5 6-3 |
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| Komoro $10,000 Clay | Jun 6 2010 |
| 1 | Oka(3) - Kana Natsume | 6-1 6-0 |
| 2 | Oka(3) - Misa Eguchi | 6-3 6-1 |
| QF | Oka(3) - Hyun Hui Hong | 7-5 6-1 |
| SF | Sachie Ishizu(1) - Oka(3) | 6-2 3-6 6-3 |
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| Tokyo $10,000 Hard | Jun 13 2010 |
| 1 | Chihiro Takayama - Oka(3) | 6-3 1-1 |
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| Tokyo $10,000 Carpet | Jul 11 2010 |
| 1 | Tomoko Sugano - Oka(1) | 6-2 6-4 |
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| Niigata $10,000 Carpet | Aug 8 2010 |
| 1 | Makiho Kozawa - Oka(1) | 6-72 6-2 6-2 |
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| Saitama $10,000 Hard | Aug 29 2010 |
| 1 | Sakiko Shimizu(7) - Oka | 7-5 6-3 |
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| Tsukuba $25,000 Hard | Sep 5 2010 |
| Qual 1 | Oka(12) - Akari Inoue | 6-3 6-0 |
| Qual 2 | Erika Sema(3) - Oka(12) | 6-2 6-4 |
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| Noto $25,000 Carpet | Sep 12 2010 |
| 1 | Oka - Makiho Kozawa | 6-3 6-2 |
| 2 | Shiho Hisamatsu - Oka | 3-6 6-4 6-0 |
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| Kyoto $10,000 Carpet | Sep 19 2010 |
| 1 | Oka(4) - Miharu Imanishi | 6-3 6-3 |
| 2 | Oka(4) - Yi Zhong | 6-1 6-76 6-4 |
| QF | Oka(4) - Kazusa Ito | 6-4 6-4 |
| SF | Nudnida Luangnam(1) - Oka(4) | 5-7 6-2 6-3 |
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| Makinohara $25,000 Carpet | Sep 26 2010 |
| 1 | Oka - Jia-Jing Lu | 6-2 6-3 |
| 2 | Oka - Qiang Wang(5) | 6-1 7-61 |
| QF | Hiroko Kuwata - Oka | 6-4 6-4 |
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| Hamanako $25,000 Carpet | Oct 3 2010 |
| 1 | Qiang Wang(5) - Oka | 6-2 6-1 |
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| Tokyo $100,000 Hard | Oct 10 2010 |
| Qual 1 | Shiho Akita(7) - Oka | 6-1 6-1 |
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| Toyota $75,000 Carpet | Nov 28 2010 |
| Qual 1 | Oka - Shiho Hisamatsu(8) | 6-3 6-3 |
| Qual 2 | Oka - Ai Koga | 6-0 6-0 |
| Qual 3 | Shuko Aoyama(2) - Oka | 6-4 1-6 6-4 |
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| Mandya $10,000 Hard | Dec 5 2010 |
| 1 | Sharmada Balu - Oka(4) | 6-1 6-0 |
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| Bangalore $25,000 Hard | Dec 12 2010 |
| 1 | Tadeja Majeric(5) - Oka | 6-0 7-64 |
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