Rio Noguchi(野口莉央, Noguchi Rio; born 28 December 1998) is a Japanese professional tennis player. He has a career high ATP singles ranking of No. 196 achieved on 18 August 2025 and a doubles ranking of No. 177 achieved on 5 May 2025.

Career

2022-2025: ATP debut, first ATP 500 win, Top 200

Noguchi made his ATP main draw debut at the 2022 Rakuten Japan Open Tennis Championships after qualifying for the singles main draw, defeating Tatsuma Ito and Yusuke Takahashi to qualify. He won his first ATP and ATP 500 level match defeating fellow qualifier Ramkumar Ramanathan. He lost to Denis Shapovalov in the second round. As a result, he climbed 75 positions up the rankings into the top 250 on 17 October 2022.

Performance timeline

Key
WFSFQF#RRRQ#DNQANH

Singles

Tournament20252026SRW–LWin%
Grand Slam tournaments
Australian OpenA0 / 00–0–
French OpenA0 / 00–0–
WimbledonA0 / 00–0–
US OpenQ1Q10 / 00–0–
Win–loss0–00 / 00–0–
ATP Masters 1000
Indian Wells MastersA0 / 00–0–
Miami OpenA0 / 00–0–
Monte Carlo MastersA0 / 00–0–
Madrid OpenA0 / 00-0–
Italian OpenA0 / 00–0–
Canadian OpenA0 / 00–0–
Cincinnati MastersA0 / 00–0–
Shanghai MastersQ10 / 00–0–
Paris MastersA0 / 00–0–
Win–loss0–00 / 00–0–

ATP Challenger Tour finals

Singles: 5 (3 titles, 2 runner-ups)

Legend
Legend ATP Challenger Tour (3–2)
ATP Challenger Tour (3–2)
ResultW–LDateTournamentTierSurfaceOpponentScore
Loss0–1Oct 2022Playford, AustraliaChallengerHardAustralia Rinky Hijikata1–6, 1–6
Loss0–2Aug 2024Jinan, ChinaChallengerHardChina Wu Yibing5–7, 3–6
Win1–2Jan 2025Nonthaburi, ThailandChallengerHardChina Cui Jie7–6(11–9), 6–2
Win2–2Jan 2026Nonthaburi, ThailandChallengerHardCzech Republic Marek Gengel6–3, 6–4
Win3–2Mar 2026Yokkaichi, JapanChallengerHardJapan Yasutaka Uchiyama5–7, 7–6(7–5), 6–3

Doubles: 6 (3 titles, 3 runner-ups)

Legend
Legend ATP Challenger Tour (3–3)
ATP Challenger Tour (3–3)
ResultW–LDateTournamentTierSurfacePartnerOpponentsScore
Loss0–1Oct 2022Playford, AustraliaChallengerHardJapan Yusuke TakahashiAustralia Jeremy Beale Australia Calum Puttergill6–7(2–7), 4–6
Loss0–2Nov 2022Yokkaichi, JapanChallengerHardJapan Masamichi ImamuraChinese Taipei Yu Hsiou Hsu Japan Yuta Shimizu6–7(2–7), 4–6
Loss0–3Aug 2024Jinan, ChinaChallengerHardAustralia Edward WinterJapan Yuta Shimizu South Korea Chung Yun-seong3–6, 7–6(7–5), [6–10]
Win1–3Dec 2024Nonthaburi, ThailandChallengerHardJapan Kokoro IsomuraCzech Republic Zdeněk Kolář Austria Neil Oberleitner7–6(7–3), 7–6(11–9)
Win2–3Feb 2025New Delhi, IndiaChallengerHardJapan Masamichi ImamuraIndia Niki Kaliyanda Poonacha Zimbabwe Courtney John Lock6–4, 6–3
Win3–3Apr 2025Busan, South KoreaChallengerHardJapan Yuta ShimizuChinese Taipei Ray Ho Australia Matthew Romios7–6(9–7), 6–4

ITF Futures/World Tennis Tour finals

Singles: 17 (8 titles, 9 runner-ups)

Legend
Legend ITF Futures/WTT (8–9)Finals by surface Hard (7–6) Clay (0–1) Grass (0–2) Carpet (1–0)
ITF Futures/WTT (8–9)
Finals by surface
Hard (7–6)
Clay (0–1)
Grass (0–2)
Carpet (1–0)
ResultW–LDateTournamentTierSurfaceOpponentScore
Win1–0May 2018Vietnam F1, Thua Thien HueFuturesHardSouth Korea Nam Ji-sung7–6(7–5), 6–3
Loss1–1Jun 2018Japan F7, KaruizawaFuturesClayJapan Takashi Saito3–6, 4–6
Win2–1Jun 2018Japan F8, AkishimaFuturesCarpet (i)Japan Gengo Kikuchi6–3, 6–4
Loss2–2Dec 2018Pakistan F1, IslamabadFuturesHardSouth Korea Cheong-Eui Kim7–6(7–3), 2–6, 1–6
Win2–3Dec 2018Pakistan F3, IslamabadFuturesHardGermany Kai Wehnelt1–6, 5–7
Loss2–4Jun 2019M25 Nonthaburi, ThailandWTTHardIndia Sidharth Rawat5–7, 0–6
Loss2–5Oct 2019M25 Tay Ninh, VietnamWTTHardUnited States Daniel Nguyen4–6, 2–6
Loss2–6Mar 2020M25 Mildura, AustraliaWTTGrassUnited Kingdom Brydan Klein5–7, 3–6
Win3–6Oct 2021M25 Pretoria, South AfricaWTTHardPoland Filip Peliwo6–3, 7–5
Loss3–7Jun 2022M25 Harmon Air Force, Guam (USA)WTTHardSouth Korea Hong Seong-chan3–6, 2–6
Win4–7Jul 2022M25 Idanha-a-Nova, PortugalWTTHardIsrael Ben Patael6–2, 6–4
Win5–7Jul 2022M25 Idanha-a-Nova, PortugalWTTHardIsrael Ben Patael6–2, 7–6(7–5)
Win6–7Sep 2022M25 Sapporo, JapanWTTHardJapan Shuichi Sekiguchi4–6, 7–5, 6–2
Win7–7Sep 2022M25 Sapporo, JapanWTTHardJapan Tatsuma Ito6–1, 4–0 ret.
Loss7–8Oct 2022M25 Kashiwa, JapanWTTHardJapan Rimpei Kawakami0–0 def.
Loss7–9Mar 2024M25 Swan Hill, AustraliaWTTGrassAustralia Alex Bolt1–6, 2–6
Win8–9Oct 2024M25 Cairns, AustraliaWTTHardAustralia Blake Ellis6–7(5–7), 6–4, 7–6(7–4)

Doubles: 15 (7 titles, 8 runner-ups)

Legend
Legend ITF Futures/WTT (7–8)Finals by surface Hard (4–5) Clay (3–1) Grass (0–0) Carpet (0–2)
ITF Futures/WTT (7–8)
Finals by surface
Hard (4–5)
Clay (3–1)
Grass (0–0)
Carpet (0–2)
ResultW–LDateTournamentTierSurfacePartnerOpponentsScore
Loss0–1Jun 2017Japan F8, AkishimaFuturesCarpet (i)Japan Yuta ShimizuJapan Yuto Sakai Japan Yunosuke Tanaka3–6, 2–6
Win1–1Feb 2018Spain F3, PagueraFuturesClaySouth Korea Chung Yun-seongBrazil Bruno Santanna Spain David Vega Hernández2–6, 7–6(8–6), [10–8]
Loss1–2Jun 2018Japan F8, KaruizawaFuturesClayJapan Yuichiro InuiJapan Sora Fukuda Japan Hiromasa Oku5–7, 4–6
Win2–2Dec 2018Pakistan F1, IslamabadFuturesHardSouth Korea Cheong-Eui KimSerbia Darko Jandrić Uzbekistan Shonigmatjon Shofayziyev6–2, 6–4
Loss2–3Dec 2018Pakistan F2, IslamabadFuturesHardJapan Sora FukudaSerbia Darko Jandrić South Korea Cheong-Eui Kim3–6, 4–6
Loss2–4Dec 2018Pakistan F3, IslamabadFuturesHardJapan Ken OnishiRussia Anton Chekhov Germany Kai Wehnelt3–6, 5–7
Loss2–5Jun 2019M15 Akishima, JapanWTTCarpet (i)Japan Yunosuke TanakaJapan Hiroyasu Ehara Japan Sho Katayama3–6, 4–6
Win3–5Oct 2019M25 Tay Ninh, VietnamWTTHardRussia Alexey ZakharovUnited States Samuel Beren United Kingdom Billy Harris6–7(5–7), 6–4, [10–4]
Loss3–6Dec 2019M15 Doha, QatarWTTHardMorocco Adam MoundirUkraine Danylo Kalenichenko Belarus Ivan Liutarevich3–6, 6–7(3–7)
Win4–6Oct 2020M15 Sharm El Sheikh, EgyptWTTHardJapan Shintaro MochizukiNetherlands Ryan Nijboer Netherlands Gijs Brouwer6–2, 7–5
Win5–6Apr 2021M15 Antalya, TurkeyWTTClayJapan Shintaro MochizukiGermany Constantin Schmitz Lebanon Benjamin Hassan7–6(7–2), 6–2
Loss5–7Aug 2021M25 Champaign, USAWTTHardSouth Korea Chung Yun-seongUnited States Ben Shelton United States Eliot Spizzirri4–6, 0–6
Loss5–8Nov 2021M25 Meitar, IsraelWTTHardJapan Naoki NakagawaFinland Iiro Vasa Finland Eero Vasa1–6, 6–7(3–7)
Win6–8Jul 2022M25 Idanha-a-Nova, PortugalWTTHardGreece Alexandros SkorilasChinese Taipei Ray Ho Canada Kelsey Stevenson6–7(4–7), 6–3, [10–3]
Win7–8May 2024M25 Kiseljak, Bosnia and HerzegovinaWTTClayJapan Koki MatsudaCzech Republic Matěj Vocel Switzerland Jakub Paul2–6, 7–6(7–5), [11–9]

External links