# Seiko Okamoto

Seiko Okamoto (岡本 聖子, Okamoto Seiko) (born 14 March 1978) is a Japanese former professional tennis player.
Okamoto took part in the 2006 Bangalore Open but lost in the first round of singles qualifying, and the first round of doubles, alongside Ryōko Fuda. She has stated that her favorite surface to play on is hardcourt.
In her career, Okamoto won one doubles title on the WTA Tour, as well as two singles and 15 doubles titles on the ITF Women's Circuit.

## WTA career finals
### Doubles: 1 (1 title)

| Result | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
| Win | Jan 2004 | Hobart International, Australia | Tier V | Hard | Shinobu Asagoe | Els Callens Barbara Schett | 2–6, 6–4, 6–3 |

## ITF Circuit finals

* $50,000 tournaments
* $25,000 tournaments
* $10,000 tournaments

### Singles: 10 (2–8)

| Result | No. | Date | Tournament | Surface | Opponent | Score |
| Win | 1. | 20 November 2000 | Kōfu Open, Japan | Carpet | Keiko Taguchi | 4–1, 1–3, 4–1 |
| Loss | 2. | 22 July 2002 | ITF Incheon, South Korea | Hard | Kim Mi-ok | 6–4, 3–6, 4–6 |
| Loss | 3. | 19 October 2003 | ITF Haibara, Japan | Hard | Yuka Yoshida | 1–6, 4–6 |
| Loss | 4. | 13 May 2004 | ITF Beijing, China | Hard | Li Na | 4–6, 4–6 |
| Loss | 5. | 27 February 2005 | ITF Taipei, Taiwan | Hard | Latisha Chan | 3–6, 2–6 |
| Loss | 6. | 28 May 2005 | ITF Nagano, Japan | Carpet | Mayumi Yamamoto | 2–6, 2–6 |
| Loss | 7. | 5 June 2005 | ITF Gunma, Japan | Carpet | Hsieh Su-wei | 1–6, 2–6 |
| Loss | 8. | 29 October 2006 | ITF Hamanako, Japan | Carpet | Shiho Hisamatsu | 2–6, 4–6 |
| Win | 9. | 15 April 2007 | ITF Ho Chi Minh City, Vietnam | Hard | Erika Takao | 6–1, 6–2 |
| Loss | 10. | 21 October 2007 | ITF Makinohara, Japan | Carpet | Akiko Yonemura | 3–6, 4–6 |

### Doubles: 33 (15–18)

| Result | No. | Date | Tournament | Surface | Partner | Opponents | Score |
| Loss | 1. | 23 November 1998 | ITF Nagasaki, Japan | Grass | Keiko Taguchi | Akiko Gunji Keiko Ishida | 2–6, 2–6 |
| Win | 2. | 6 June 1999 | ITF Little Rock, United States | Hard | Keiko Taguchi | Chang Kyung-mi Chae Kyung-yee | 7–5, 6–2 |
| Win | 3. | 28 November 1999 | ITF Kōfu, Japan | Carpet | Keiko Taguchi | Remi Tezuka Maki Arai | 7–6, 0–6, 7–5 |
| Win | 4. | 13 November 2000 | ITF Haibara, Japan | Clay | Keiko Taguchi | Akiko Gunji Keiko Ishida | 2–4, 4–0, 5–3, 3–5, 4–2 |
| Win | 5. | 20 November 2000 | ITF Kōfu, Japan | Carpet | Keiko Taguchi | Kumiko Iijima Maki Arai | 3–5, 4–1, 5–4, 4–1 |
| Win | 6. | 3 September 2001 | ITF Kugayama, Japan | Hard | Nami Urabe | Melissa Dowse Samantha Stosur | 6–4, 2–6, 6–1 |
| Loss | 7. | 26 September 2001 | ITF Kyoto, Japan | Hard | Nami Urabe | Melissa Dowse Samantha Stosur | 3–6, 6–3, 2–6 |
| Loss | 8. | 10 February 2002 | ITF Faro, Portugal | Hard | Satomi Kinjo | Remi Tezuka Maki Arai | 5–7, 7–6, 2–6 |
| Win | 9. | 30 June 2002 | ITF Lachine, Canada | Hard | Shizu Katsumi | Adria Engel Kristina Kraszewski | w/o |
| Win | 10. | 21 July 2002 | ITF Seoul, South Korea | Hard | Maki Arai | Chang Kyung-mi Chae Kyung-yee | 6–3, 5–7, 6–4 |
| Loss | 11. | 20 April 2003 | ITF Ho Chi Minh City, Vietnam | Hard | Shiho Hisamatsu | Choi Jin-young Kim Mi-ok | 1–6, 2–6 |
| Win | 12. | 1 June 2003 | ITF Houston, United States | Hard (i) | Remi Tezuka | Yvonne Doyle Nicole Rencken | 5–7, 6–4, 6–3 |
| Loss | 13. | 2 November 2003 | ITF Beijing, China | Hard | Jeon Mi-ra | Yang Shujing Yu Ying | 4–6, 2–6 |
| Loss | 14. | 10 May 2004 | ITF Karuizawa, Japan | Carpet | Ryōko Fuda | Rika Fujiwara Jeon Mi-ra | 2–6, 6–2, 6–7 |
| Win | 15. | 11 July 2004 | ITF College Park, United States | Hard | Shiho Hisamatsu | Natallia Dziamidzenka Kaysie Smashey | 7–6$^{(5)}$, 6–2 |
| Loss | 16. | 21 February 2005 | ITF Taipei, Taiwan | Hard | Ryōko Fuda | Chuang Chia-jung Hsieh Su-wei | 3–6, 2–6 |
| Win | 17. | 1 May 2005 | ITF Hamanako, Japan | Hard | Ryōko Fuda | Shiho Hisamatsu Ayami Takase | 7–5, 6–4 |
| Loss | 18. | 8 May 2005 | Kangaroo Cup, Japan | Carpet | Ryōko Fuda | Rika Fujiwara Saori Obata | 1–6, 2–6 |
| Win | 19. | 14 May 2005 | Fukuoka International, Japan | Carpet | Ryōko Fuda | Latisha Chan Chuang Chia-jung | 6–2, 7–6 |
| Win | 20. | 22 May 2005 | ITF Changwon, South Korea | Hard | Chuang Chia-jung | Chan Chin-wei Hsieh Su-wei | 6–2, 7–5 |
| Loss | 21. | 23 October 2005 | ITF Makinohara, Japan | Carpet | Ayami Takase | Ryoko Takemura Tomoko Yonemura | 4–6, 3–6 |
| Loss | 22. | 6 November 2005 | ITF Busan, Korea | Hard | Ayami Takase | Julia Efremova Wynne Prakusya | 4–6, 7–6$^{(6)}$, 1–6 |
| Loss | 23. | 11 April 2006 | ITF Jackson, United States | Clay | Ayami Takase | Maria Kondratieva Sophie Lefèvre | 0–6, 3–6 |
| Loss | 24. | 9 July 2006 | ITF Nagoya, Japan | Hard | Ayami Takase | Chuang Chia-jung Shiho Hisamatsu | 2–6, 3–6 |
| Loss | 25. | 16 July 2006 | ITF Miyazaki, Japan | Hard | Ayami Takase | Maki Arai Kumiko Iijima | 2–6, 3–6 |
| Loss | 26. | 23 July 2006 | Kurume Cup, Japan | Carpet | Ayami Takase | Latisha Chan Chuang Chia-jung | w/o |
| Loss | 27. | 28 October 2006 | ITF Hamanako, Japan | Carpet | Maki Arai | Chuang Chia-jung Hsieh Su-wei | 6–7$^{(2)}$, 5–7 |
| Win | 28. | 5 November 2006 | ITF Sutama, Japan | Clay | Maki Arai | Ryoko Takemura Mari Tanaka | 6–2, 6–3 |
| Win | 29. | 19 February 2007 | ITF Clearwater, United States | Hard | Ryōko Fuda | Mervana Jugić-Salkić Antonella Serra Zanetti | 5–7, 6–3, 6–4 |
| Loss | 30. | 9 April 2007 | ITF Ho Chi Minh City, Vietnam | Hard | Kumiko Iijima | Han Xinyun Hao Jie | 2–6, 6–1, 3–6 |
| Loss | 31. | 6 May 2007 | ITF Gifu, Japan | Carpet | Kumiko Iijima | Ayumi Morita Ai Sugiyama | 1–6, 6–3, 0–6 |
| Loss | 32. | 18 February 2008 | ITF Clearwater, United States | Hard | Chan Chin-wei | Anna Fitzpatrick Ana Veselinović | 2–6, 6–3, [6–10] |
| Win | 33. | 26 March 2010 | ITF Kōfu, Japan | Hard | Maki Arai | Shiho Hisamatsu Maiko Inoue | 6–4, 6–4 |