| Momoko Kobori 小堀 桃子 | |
| Birth Date: | 1998 8, df=yes |
| Birth Place: | Saitama, Japan |
| Height: | 1.58 m |
| Plays: | Right (two-handed backhand) |
| Coach: | Takahiro Sakuma |
| Careerprizemoney: | $156,637 |
| Singlestitles: | 2 ITF |
| Highestsinglesranking: | No. 226 (22 April 2019) |
| Currentsinglesranking: | No. 521 (2 December 2024) |
| Doublestitles: | 19 ITF |
| Highestdoublesranking: | No. 136 (26 November 2018) |
| Currentdoublesranking: | No. 197 (2 December 2024) |
| Updated: | 2 December 2024 |
is a Japanese female tennis player.[1]
She has career-high WTA rankings of 226 in singles, achieved in April 2019, and 136 in doubles, set in November 2018. She has won two singles titles and 18 doubles titles on the ITF Circuit.
Kobori made her WTA Tour main-draw debut at the 2017 Japan Women's Open, after receiving a wildcard alongside Erina Hayashi into the doubles tournament.
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| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score | |
|---|---|---|---|---|---|---|---|---|
| Loss | 0–1 | Oct 2017 | ITF Makinohara, Japan | 25,000 | Carpet |  Ayano Shimizu | 3–6, 3–6 | |
| Win | 1–1 | May 2018 | ITF Karuizawa, Japan | 25,000 | Carpet | Miyabi Inoue | 6–0, 6–2 | |
| Win | 2–1 | Oct 2018 | ITF Makinohara, Japan | 25,000 | Carpet | Junri Namigata | 6–2, 6–3 | |
| Loss | 2–2 | May 2019 | ITF Karuizawa, Japan | W25 | Carpet |  Jovana Jakšić | 1–6, 6–4, 5–7 | |
| Loss | 2–3 | Mar 2021 | ITF Sharm El Sheikh, Egypt | W15 | Hard | Yuriko Miyazaki | 2–6, 6–4, 3–6 | |
| Loss | 2–4 | Oct 2022 | ITF Nanao, Japan | W25 | Carpet | Haruka Kaji | 6–3, 3–6, 3–6 | |
| Win | 3–4 | Sep 2024 | ITF Kyoto, Japan | W35 | Hard (i) |  Tiphanie Lemaître | 7–6(1), 6–2 |
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| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score | ||
|---|---|---|---|---|---|---|---|---|---|---|
| Loss | 0–1 | Mar 2016 | ITF Nishitama, Japan | 10,000 | Hard | Chihiro Muramatsu | Robu Kajitani Mihoki Miyahara | 6–4, 2–6, [6–10] | ||
| Win | 1–1 | Mar 2017 | ITF Nishitama, Japan | 15,000 | Hard | Kotomi Takahata | Shiho Akita Erika Sema | 6–1, 6–2 | ||
| Loss | 1–2 | Jun 2017 | ITF Tokyo, Japan | 25,000 | Hard | Kotomi Takahata | Rika Fujiwara Kyōka Okamura | 2–6, 0–6 | ||
| Win | 2–2 | Jun 2017 | Open de Montpellier, France | 25,000 | Clay | Ayano Shimizu |  Laura Pigossi  Victoria Rodríguez | 6–3, 4–6, [10–7] | ||
| Win | 3–2 | Jul 2017 | Open Denain, France | 25,000 | Clay | Ayano Shimizu | Mathilde Armitano Elixane Lechemia | 6–4, 6–3 | ||
| Win | 4–2 | Oct 2017 | ITF Toowoomba, Australia | 25,000 | Hard | Ayano Shimizu |  Naiktha Bains  Abigail Tere-Apisah | 7–5, 7–5 | ||
| Loss | 4–3 | Feb 2018 | style=background:#addfad; | Burnie International, Australia | style=background:#addfad; | 60,000 | Hard | Chihiro Muramatsu |  Vania King  Laura Robson | 6–7(3), 1–6 |
| Loss | 4–4 | Mar 2018 | ITF Yokohama, Japan | 25,000 | Hard | Chihiro Muramatsu | Laura Robson  Fanny Stollár | 7–5, 2–6, [4–10] | ||
| Loss | 4–5 | Mar 2018 | Kōfu International Open, Japan | 25,000 | Hard | Erina Hayashi |  Gao Xinyu  Luksika Kumkhum | 0–6, 6–2, [4–10] | ||
| Win | 5–5 | May 2018 | ITF Karuizawa, Japan | 25,000 | Carpet | Ayano Shimizu | Chisa Hosonuma Kanako Morisaki | 6–0, 6–3 | ||
| Win | 6–5 | Jul 2018 | Open Denain, France | 25,000 | Clay | Ayano Shimizu | Quirine Lemoine Eva Wacanno | 0–6, 7–5, [10–7] | ||
| Loss | 6–6 | Sep 2018 | ITF Nanao, Japan | 25,000 | Carpet | Ayano Shimizu | Meguni Nishimoto Kanako Morisaki | 2–6, 3–6 | ||
| Loss | 6–7 | Oct 2018 | ITF Hamamatsu, Japan | 25,000 | Carpet | Ayano Shimizu | Erina Hayashi Miharu Imanishi | 5–7, 4–6 | ||
| Loss | 6–8 | May 2019 | ITF Karuizawa, Japan | W25 | Carpet | Erina Hayashi | Ayaka Okuno Naomi Broady | 3–6, 6–2, [7–10] | ||
| Loss | 6–9 | Jun 2019 | ITF Hong Kong, China SAR | W25 | Hard | Erina Hayashi | Junri Namigata Abigail Tere-Apisah | 3–6, 6–2, [6–10] | ||
| Loss | 6–10 | Jul 2019 | ITF Saskatoon, Canada | W25 | Hard | Haruka Kaji | Hsu Chieh-yu Marcela Zacarías | 3–6, 2–6 | ||
| Loss | 6–11 | Oct 2019 | ITF Makinohara, Japan | W25 | Carpet | Erina Hayashi |  Eudice Chong Aldila Sutjiadi | 7–6(5), 6–7(5), [4–10] | ||
| Loss | 6–12 | Jan 2020 | ITF Hong Kong | W25 | Hard | Mei Yamaguchi | Mana Ayukawa Eudice Chong | 4–6, 3–6 | ||
| Win | 7–12 | Mar 2021 | ITF Sharm El Sheikh, Egypt | W15 | Hard | Ayano Shimizu |  Barbora Matúšová  Anastasia Zolotareva | 6–1, 6–2 | ||
| Win | 8–12 | Mar 2021 | ITF Sharm El Sheikh, Egypt | W15 | Hard | Ayano Shimizu | Alicia Barnett Yuriko Miyazaki | 6–4, 6–1 | ||
| Win | 9–12 | Jun 2021 | ITF Lisbon, Portugal | W25 | Hard |  Han Na-lae | Ingrid Martins Ma Shuyue | 6–3, 6–1 | ||
| Win | 10–12 | Sep 2021 | style=background:#addfad; | Portugal Ladies Open | style=background:#addfad; | W60+H | Hard | Hiroko Kuwata | Alicia Barnett Olivia Nicholls | 7–6(5), 7–6(2) |
| Loss | 10–13 | Apr 2022 | ITF Chiang Rai, Thailand | W25 | Hard | Luksika Kumkhum |  Gozal Ainitdinova Maria Timofeeva | 6–2, 5–6, [4–10] | ||
| Win | 11–13 | Jun 2022 | ITF Chiang Rai, Thailand | W25 | Hard | Luksika Kumkhum | Misaki Matsuda Naho Sato | 6–3, 6–3 | ||
| Loss | 11–14 | Jun 2022 | ITF Gurugram, India | W25 | Hard | Misaki Matsuda | Saki Imamura Priska Madelyn Nugroho | 4–6, 5–7 | ||
| Loss | 11–15 | Jul 2022 | ITF Gurugram, India | W25 | Hard | Misaki Matsuda |  Ankita RainaPriska Madelyn Nugroho | 6–3, 0–6, [6–10] | ||
| Win | 12–15 | Jul 2022 | ITF Nur-Sultan, Kazakhstan | W25 | Hard | Ankita Raina | Choi Ji-hee Han Na-lae | 6–2, 3–6, [10–8] | ||
| Loss | 12–16 | Jul 2022 | style=background:#addfad; | President's Cup, Kazakhstan | style=background:#addfad; | W60 | Hard | Moyuka Uchijima | Mariia Tkacheva Anastasia Zolotareva | 6–4, 1–6, [6–10] |
| Win | 13–16 | Sep 2022 | ITF Darwin, Australia | W25 | Hard | Luksika Kumkhum | Yui Chikaraishi Nanari Katsumi | 6–2, 7–6(3) | ||
| Win | 14–16 | Oct 2022 | ITF Makinohara, Japan | W25 | Carpet | Mayuka Aikawa | Mana Ayukawa Riko Sawayanagi | 6–4, 5–7, [10–7] | ||
| Loss | 14–17 | Dec 2022 | style=background:#addfad; | Indoor Championships, Japan | style=background:#addfad; | W60 | Hard (i) | Luksika Kumkhum | Liang En-shuo Wu Fang-hsien | 6–2, 6–7(5), [2–10] |
| Win | 15–17 | May 2023 | ITF Karuizawa, Japan | W25 | Grass | Ayano Shimizu | Talia Gibson Akari Inoue | 3–6, 7–6(6), [10–5] | ||
| Loss | 15–18 | Jul 2023 | ITF Hong Kong | W25 | Hard | Ayano Shimizu | Erika Sema Aoi Ito | 7–5, 3–6, [4–10] | ||
| Win | 16–18 | Aug 2023 | style=background:#ffe4c4; | ITF Hong Kong | style=background:#ffe4c4; | W40 | Hard | Ayano Shimizu | Erika Sema Aoi Ito | 3–6, 6–3, [11–9] |
| Loss | 16–19 | Nov 2023 | Takasaki Open, Japan | W100 | Hard | Ayano Shimizu | Guo Hanyu Jiang Xinyu | 6–7(5), 7–5, [5–10] | ||
| Loss | 16–20 | May 2024 | Kurume Cup, Japan | W75 | Carpet | Ayano Shimizu | Madeleine Brooks Sarah Beth Grey | 4–6, 0–6 | ||
| Win | 17–20 | Aug 2024 | ITF Nakhon Si Thammarat, Thailand | W15 | Hard | Natsumi Kawaguchi | Honoka Kobayashi Yukina Saigo | 6–3, 6–4 | ||
| Loss | 17–21 | Aug 2024 | ITF Nakhon Si Thammarat, Thailand | W35 | Hard | Natsumi Kawaguchi | Kanako Morisaki Hikaru Sato | 2–6, 3–6 | ||
| Loss | 17–22 | Sep 2024 | ITF Nanao, Japan | W50 | Carpet | Ayano Shimizu | Aoi Ito Naho Sato | 1–6, 3–6 | ||
| Loss | 17–23 | Nov 2024 | ITF Hamamatsu, Japan | W35 | Carpet | Ayano Shimizu | Hiromi Abe Akiko Omae | 0–6, 0–6 | ||
| Win | 18–23 | Nov 2024 | Takasaki Open, Japan | W100 | Hard | Ayano Shimizu | Liang En-shuo Tsao Chia-yi | 4–6, 6–4, [10–3] | ||
| Win | 19–23 | Nov 2024 | Keio Challenger, Japan | W50 | Hard | Ayano Shimizu | Cho I-hsuan Cho Yi-tsen | 6–4, 7–6(2) |