Outcome | No. | Date | Tournament | Surface | Partner | Opponents in the final | Score |
Runner-up | 1. | 26 September 1999 | Tokyo, Japan | Hard | Kumiko Iijima | Li Na
Li Ting | 2–6, 1–6 |
Winner | 2. | 21 November 1999 | Haibara, Japan | Carpet | Kumiko Iijima | Choi Young-ja
Kim Eun-sook | 6–2, 6–0 |
Runner-up | 3. | 28 November 1999 | Kofu, Japan | Carpet | Remi Tezuka | Seiko Okamoto
Keiko Taguchi | 6–7, 6–0, 5–7 |
Runner-up | 4. | 20 November 2000 | Kofu, Japan | Carpet | Kumiko Iijima | Seiko Okamoto
Keiko Taguchi | 5–3, 1–4, 4–5, 1–4 |
Winner | 5. | 29 April 2001 | Bournemouth, England | Clay | Julia Smith | Daniela Klemenschits
Sandra Klemenschits | 6–7(4–7), 6–3, 6–3 |
Winner | 6. | 24 June 2001 | Montréal, Canada | Hard | Kaori Aoyama | Ayano Takeuchi
Tomoko Yonemura | 6–1, 6–3 |
Winner | 7. | 8 July 2001 | Kaohsiung, Taiwan | Hard | Kumiko Iijima | Khoo Chin-bee
Weng Tzu-ting | W/O |
Winner | 8. | 10 February 2002 | Faro, Portugal | Hard | Remi Tezuka | Satomi Kinjo
Seiko Okamoto | 7–5, 6–7(5–7), 6–2 |
Winner | 9. | 17 February 2002 | Vilamoura, Portugal | Hard | Remi Tezuka | Liana Ungur
Marta Fraga | 6–2, 7–5 |
Winner | 10. | 21 July 2002 | Seoul, South Korea | Hard | Seiko Okamoto | Chae Kyung-yee
Chang Kyung-mi | 6–3, 5–7, 6–4 |
Winner | 11. | 1 September 2002 | Ibaraki, Japan | Hard | Kaori Aoyama | Yumiko Kitamura
Keiko Taguchi | 4–6, 6–1, 6–2 |
Runner-up | 12. | 15 September 2002 | Kyoto, Japan | Hard (i) | Kaori Aoyama | Shiho Hisamatsu
Maiko Inoue | 5–7, 5–7 |
Runner-up | 13. | 23 February 2003 | Bangalore, India | Hard | Natallia Dziamidzenka | Rushmi Chakravarthi
Sai Jayalakshmy Jayaram | 6–7(5–7), 6–7(4–7) |
Runner-up | 14. | 20 April 2003 | Yamaguchi, Japan | Clay | Ryoko Fuda | Akiko Kinebuchi
Tomoko Taira | 6–3, 6–7(7–9), 4–6 |
Runner-up | 15. | 18 May 2003 | Nagano, Japan | Grass | Aiko Nakamura | Tomoko Taira
Tomoko Yonemura | 3–6, 1–6 |
Runner-up | 16. | 25 May 2003 | Gunma, Japan | Grass | Aiko Nakamura | Kumiko Iijima
Suchanun Viratprasert | 6–4, 5–7, 4–6 |
Winner | 17. | 21 June 2003 | Inchon, South Korea | Hard | Wang I-ting | Kim Ye-on
Lee Joo-hee | 6–1, 1–6, 6–2 |
Winner | 18. | 26 October 2003 | Tokyo, Japan | Hard | Ryoko Fuda | Shizu Katsumi
Kim Hea-mi | 6–2, 6–3 |
Runner-up | 19. | 3 July 2004 | Inchon, South Korea | Hard | Remi Tezuka | Lee Jin-a
Yoo Soo-mi | 2–6, 6–4, 4–6 |
Winner | 20. | 7 September 2004 | Ibaraki, Japan | Hard | Remi Tezuka | Rika Fujiwara
Shiho Hisamatsu | 6–1, 5–7, 6–2 |
Runner-up | 21. | 19 September 2004 | Kyoto, Japan | Carpet | Satomi Kinjo | Natasha Kersten
Eriko Mizuno | 4–6, 6–4, 4–6 |
Runner-up | 22. | 31 October 2004 | Tokyo, Japan | Hard | Akiko Yonemura | Kumiko Iijima
Junri Namigata | 3–6, 1–6 |
Winner | 23. | 5 February 2005 | Wellington, New Zealand | Hard | Chang Kyung-mi | Beti Sekulovski
Aleksandra Srndovic | 3–6, 6–4, 6–4 |
Winner | 24. | 13 February 2005 | Blenheim, New Zealand | Hard | Chang Kyung-mi | Beti Sekulovski
Aleksandra Srndovic | 6–4, 7–6 |
Winner | 25. | 13 February 2005 | Yamaguchi, Japan | Clay | Kumiko Iijima | Lisa D'Amelio
Christina Horiatopoulos | 6–3, 7–6 |
Runner-up | 26. | 11 June 2005 | Seoul, South Korea | Hard | Lee Eun-jeong | Chan Chin-wei
Hsieh Su-wei | 2–6, 1–6 |
Winner | 27. | 11 September 2005 | Beijing, China | Hard | Kim So-jung | Chan Yung-jan
Hwang I-hsuan | 6–4, 6–0 |
Winner | 28. | 30 October 2005 | Tokyo, Japan | Hard | Kim Hea-mi | Lauren Breadmore
Annette Kolb | 6–4, 7–6 |
Winner | 29. | 6 November 2005 | Sutama, Japan | Clay | Kumiko Iijima | Tomoko Dokei
Yukiko Yabe | 6–1, 6–2 |
Winner | 30. | 16 July 2006 | Miyazaki, Japan | Carpet | Kumiko Iijima | Seiko Okamoto
Ayami Takase | 6–2, 6–3 |
Runner-up | 31. | 10 September 2006 | Kyoto, Japan | Carpet | Yukiko Yabe | Natsumi Hamamura
Ayaka Maekawa | 4–6, 2–6 |
Runner-up | 32. | 17 September 2006 | Hiroshima, Japan | Carpet | Montinee Tangphong | Yuka Kuroda
Eriko Mizuno | 1–6, 4–6 |
Runner-up | 33. | 28 October 2006 | Hamanako, Japan | Carpet | Seiko Okamoto | Chuang Chia-jung
Hsieh Su-wei | 6–7(2–7), 5–7 |
Winner | 34. | 5 November 2006 | Sutama, Japan | Clay | Seiko Okamoto | Ryoko Takemura
Mari Tanaka | 6–2, 6–3 |
Winner | 35. | 4 November 2007 | Kofu, Japan | Hard | Chang Kyung-mi | Ayaka Maekawa
Varatchaya Wongteanchai | 5–7, 6–2, [10–7] |
Winner | 36. | 8 March 2008 | Hamilton, New Zealand | Hard | Yurina Koshino | Alison Bai
Emelyn Starr | 7–6(7–3), 7–6(7–2) |
Runner-up | 37. | 6 September 2008 | Tsukuba, Japan | Hard | Yurika Sema | Chan Chin-wei
Hwang I-hsuan | 0–6, 4–6 |
Runner-up | 38. | 20 September 2008 | Kyoto, Japan | Carpet | Yurina Koshino | Ayumi Oka
Varatchaya Wongteanchai | 7–5, 2–6, [2–10] |
Runner-up | 39. | 27 March 2009 | Kofu, Japan | Hard | Miki Miyamura | Shuko Aoyama
Akari Inoue | 5–7, 6–3, [8–10] |
Winner | 40. | 1 May 2009 | Bundaberg, Australia | Clay | Nicole Riner | Isabella Holland
Sally Peers | 1–6, 6–4, 11–9 |
Winner | 41. | 1 May 2009 | Ipswich, Australia | Clay | Olivia Rogowska | Tyra Calderwood
Shannon Golds | 6–3, 6–2 |
Runner-up | 42. | 14 June 2009 | Tokyo, Japan | Hard | Yurina Koshino | Ayumi Oka
Mari Tanaka | 6–7(6–8), 0–6 |
Winner | 43. | 11 July 2009 | Tokyo, Japan | Carpet | Mari Tanaka | Kazusa Ito
Tomoko Taira | 7–5, 3–6, [13–11] |
Runner-up | 44. | 8 August 2009 | Niigata, Japan | Carpet | Etsuko Kitazaki | Airi Hagimoto
Maiko Inoue | 2–6, 2–6 |
Winner | 45. | 29 August 2009 | Saitama, Japan | Hard | Mari Tanaka | Airi Hagimoto
Maiko Inoue | 6–2, 6–4 |
Winner | 46. | 26 March 2010 | Kofu, Japan | Hard | Seiko Okamoto | Shiho Hisamatsu
Maiko Inoue | 6–4, 6–4 |
Winner | 47. | 11 July 2010 | Tokyo, Japan | Carpet | Maiko Inoue | Airi Hagimoto
Kaori Onishi | 6–2, 7–5 |