| Mei Yamaguchi 山口 芽生 | |
| Birth Date: | 14 June 1999 |
| Birth Place: | Saitama, Japan |
| Plays: | Right (two-handed backhand) |
| Careerprizemoney: | US$66,907 |
| Singlestitles: | 2 ITF |
| Highestsinglesranking: | No. 334 (4 November 2024) |
| Currentsinglesranking: | No. 334 (4 November 2024) |
| Highestdoublesranking: | No. 649 (26 July 2021) |
| Updated: | 4 November 2024 |
is a Japanese tennis player.
Yamaguchi has a career-high singles ranking of 334 by the WTA, achieved on 4 November 2024, and a best WTA doubles ranking of 649, set in July 2021.[1]
Yamaguchi made her WTA Tour main-draw debut at the 2024 Toray Pan Pacific Open[2]
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| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score | |
|---|---|---|---|---|---|---|---|---|
| Loss | 0–1 | ITF Nanchang, China | W15 | Clay (i) |  Lu Jiaxi | 6–7(3), 2–6 | ||
| Win | 1–1 | Jul 2021 | ITF Amarante, Portugal | W15 | Hard |  Federica Rossi | 6–4, 3–6, 6–4 | |
| Win | 2–1 | Nov 2024 | ITF Hamamatsu, Japan | W35 | Carpet | Aoi Ito | 4–6, 5–3 ret. |
| Legend | |
|---|---|
| W25/35 tournaments | |
| W15 tournaments |
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score | |
|---|---|---|---|---|---|---|---|---|---|
| Loss | 0–1 | Mar 2019 | ITF Nanchang, China | W15 | Clay (i) | Guo Hanyu Zheng Wushuang | 0–6, 1–6 | ||
| Loss | 0–2 | Jan 2020 | ITF Hong Kong | W25 | Hard |  Momoko Kobori | Mana Ayukawa  Eudice Chong | 4–6, 3–6 |