is a Japanese tennis player.
Yamaguchi has a career-high singles ranking of 242 by the WTA, achieved on 5 May 2025, and a best WTA doubles ranking of 649, set in July 2021.
Yamaguchi made her WTA Tour main-draw debut at the 2024 Toray Pan Pacific Open, losing to Bianca Andreescu in the first round.
ITF Circuit finals
Singles: 3 (2 titles, 1 runner–up) LegendW35 tournamentsW15 tournamentsFinals by surfaceHard (1–0)Clay (0–1)Carpet (1–0) ResultW–LDateTournamentTierSurfaceOpponentScoreLoss 0–1 ITF Nanchang, ChinaW15 Clay (i) Lu Jiaxi 6–7(3), 2–6Win 1–1 Jul 2021ITF Amarante, PortugalW15 Hard Federica Rossi 6–4, 3–6, 6–4Win 2–1 Nov 2024ITF Hamamatsu, JapanW35 Carpet Aoi Ito 4–6, 5–3 ret.
Doubles: 2 (0 titles, 2 runner-ups) LegendW25/35 tournaments W15 tournaments ResultW–LDateTournamentTierSurfacePartnerOpponentsScoreLoss 0–1 Mar 2019ITF Nanchang, ChinaW15 Clay (i) Ma Yexin Guo Hanyu Zheng Wushuang 0–6, 1–6Loss 0–2 Jan 2020ITF Hong KongW25 Hard Momoko Kobori Mana Ayukawa Eudice Chong 4–6, 3–6
References
External links