| Keiko Nagatomi | |
| Birth Date: | 22 November 1974 |
| Careerprizemoney: | $56,571 |
| Singlesrecord: | 104–100 |
| Singlestitles: | 4 ITF |
| Highestsinglesranking: | No. 271 (12 May 1997) |
| Doublesrecord: | 104–63 |
| Doublestitles: | 12 ITF |
| Highestdoublesranking: | No. 143 (16 November 1998) |
| Wimbledondoublesresult: | Q1 (1997) |
Keiko Nagatomi (born 22 November 1974) is a Japanese former professional tennis player.
Nagatomi, who had a highest singles ranking of 271, won four ITF titles and had her best WTA Tour performance at the 1999 Tashkent Open, where she made the second round.[1] As a doubles player, she won a further 12 ITF titles and featured in the qualifying draw for the 1997 Wimbledon Championships.[2]
| $25,000 tournaments | |
| $10,000 tournaments |
| Outcome | No. | Date | Tournament | Surface | Opponent | Score | |
|---|---|---|---|---|---|---|---|
| Winner | 1. | 25 July 1994 | ITF Roanoke, United States | Hard | Kristina Brandi | 7–6, 6–3 | |
| Winner | 2. | 13 May 1996 | ITF Beijing, China | Hard |  Wen Yuan | 2–6, 6–1, 6–3 | |
| Winner | 3. | 30 September 1996 | ITF Ibaraki 1, Japan | Hard |  Maiko Inoue | 6–4, 6–4 | |
| Winner | 4. | 7 October 1996 | ITF Ibaraki 2, Japan | Hard |  Jenny Anne Fetch | 6–2, 6–4 | |
| Runner-up | 1. | 21 October 1996 | ITF Kyoto, Japan | Hard | Shinobu Asagoe | 2–6, 4–6 |
| Outcome | No. | Date | Tournament | Surface | Partner | Opponents | Score | |
|---|---|---|---|---|---|---|---|---|
| Winner | 1. | 28 June 1993 | ITF Columbia, United States | Hard | Mika Todo | Yuko Hosoki Naoko Kijimuta | 7–5, 6–4 | |
| Runner-up | 1. | 11 October 1993 | ITF Kuroshio, Japan | Hard | Madoka Kuki | Keiko Ishida Fumiko Yamazaki | 2–6, 0–6 | |
| Winner | 2. | 9 May 1994 | ITF Bandar Seri Begawan, Brunei | Hard | Anori Fukuda | Irawati Moerid  Benjamas Sangaram | 7–6(5), 6–3 | |
| Winner | 3. | 2 October 1995 | ITF Ibaraki 1, Japan | Hard | Yoshiko Sasano | Trudi Musgrave Nami Urabe | 6–0, 7–6(5) | |
| Winner | 4. | 9 October 1995 | ITF Ibaraki 2, Japan | Hard | Yoshiko Sasano |  Jane Chi Mindy Weiner | 6–2, 6–2 | |
| Winner | 5. | 30 September 1996 | ITF Ibaraki 1, Japan | Hard | Yuka Tanaka | Keiko Ishida Kiyoko Yazawa | 3–6, 6–3, 7–5 | |
| Runner-up | 2. | 13 October 1996 | ITF Ibaraki 2, Japan | Hard | Yuka Tanaka | Gail Biggs Lisa McShea | 7–5, 3–6, 3–6 | |
| Runner-up | 3. | 20 October 1996 | ITF Kugayama, Japan | Hard | Kiyoko Yazawa | Gail Biggs Lisa McShea | 0–6, 2–6 | |
| Winner | 6. | 27 October 1996 | ITF Kyoto, Japan | Carpet | Yuka Tanaka | Gail Biggs Lisa McShea | 7–6(4), 2–6, 6–2 | |
| Winner | 7. | 17 March 1997 | ITF Noda, Japan | Hard | Yuko Hosoki |  Choi Young-ja Jeon Mi-ra | 6–2, 6–2 | |
| Winner | 8. | 3 November 1997 | ITF Beijing, China | Hard | Keiko Ishida | Chen Jingjing Yi Jing-Qian | 7–6(4), 1–6, 6–3 | |
| Winner | 9. | 16 March 1998 | ITF Noda, Japan | Hard | Keiko Ishida | Kyōko Nagatsuka Saori Obata | 3–6, 6–2, 6–3 | |
| Winner | 10. | 18 May 1998 | ITF Spartanburg, United States | Clay | Keiko Ishida |  Renata Kolbovic Jessica Steck | 3–6, 5–7 | |
| Winner | 11. | 25 May 1998 | ITF El Paso, United States | Hard | Keiko Ishida | Kaysie Smashey Sara Walker | 6–2, 6–3 | |
| Winner | 12. | 1 June 1998 | ITF Little Rock, United States | Hard | Keiko Ishida | Li Li Li Ting | 7–5, 6–1 |