is a Japanese tennis player.
Tajima has a career high ATP singles ranking of No. 603 achieved on 20 January 2021 and a doubles rankings of No. 245 achieved on 16 February 2026.
Tajima won the 2018 French Open – Boys' doubles title.
ATP Challenger and ITF Futures finals
Singles: 2 (0–2) LegendATP Challenger (0–0)ITF Futures (0–2)Finals by surfaceHard (0–1)Clay (0–1)Grass (0–0)Carpet (0–0)
ResultW–LDateTournamentTierSurfaceOpponentScoreLoss0–1M15 Anning, ChinaWorld Tennis TourClay Agustín Velotti6–4, 3–6, 5–7Loss0–2M15 Kouvola, FinlandWorld Tennis TourHard Anton Matusevich1–6, 6–4, 0–6
Doubles: 30 (8–22) LegendATP Challenger (1–1)World Tennis Tour (7–21)Finals by surfaceHard (7–17)Clay (1–5)Grass (0–0)Carpet (0–0)
ResultW–LDateTournamentTierSurfacePartnerOpponentsScoreWin1–0M15 Anning, ChinaWorld Tennis TourClay Kento Takeuchi Francesco Bessire Agustín Velotti4–6, 7–5, [10–7]Win2–0M25 Matsuyama, JapanWorld Tennis TourHard Shinji Hazawa Cheong-Eui Kim Ji Sung Nam4–6, 6–1, [10–7]Loss2–1M15 Cairo, EgyptWorld Tennis TourClay Jose Francisco Vidal Azorin Franco Agamenone Piotr Matuszewski6–4, 6–7(5–7), [7–10]Loss2–2M15 St. Petersburg, RussiaWorld Tennis TourHard Alexey Zakharov Alexandr Cozbinov Simon Freund4–6, 5–7Loss2–3M15 St. Petersburg, RussiaWorld Tennis TourHard Alexey Zakharov Alexandr Cozbinov Simon Freund6–75–7, 6–2, [6–10]Loss2–4M15 Cancún, MexicoWorld Tennis TourHard Sho Shimabukuro Siddhant Banthia Seita Watanabe6–1, 4–6, [3–10]Win3–4M15 Cancún, MexicoWorld Tennis TourHard Sho Shimabukuro Peter Bertran Mwendwa Mbithi7–6(7–5), 6–4Win4–4M15 Monastir, TunesiaWorld Tennis TourHard Kaito Uesugi Loic Cloes Marat Deviatiarov(W/O)Win5–4M15 Monastir, TunesiaWorld Tennis TourHard Kaito Uesugi Martin Breysach Arthur Bouquier6–2 7–6(7–5)Loss5–5M25 Canberra, AustraliaWorld Tennis TourHard Calum Puttergill Rubin Statham Akira Santillan4–6 3–6Loss5–6M15 Antalya, TurkeyWorld Tennis TourClay Yuta Shimizu Juan Pablo Canas Garcia Pablo Llamas Ruiz4–6 5–7Loss5–7M25 Sapporo, JapanWorld Tennis TourHard Rimpei Kawakami Takuto Niki Takeru Yuzuki6–3, 4–6, [8–10]Loss5–8M25 Kashiwa, JapanWorld Tennis TourHard Seita Watanabe Toshihide Matsui Kaito Uesugi3–6, 6–4, [5–10]Loss5–9M15 Jakarta, IndonesiaWorld Tennis TourHard Keisuke Saitoh Rivik Choudary Bollipalli Niki Kaliyanda Poonacha1–6, 3–6Loss5–10M15 Monastir, TunesiaWorld Tennis TourHard Ryuki Matsuda Tim Handel Yannik Steinegger4–6, 1–6Loss5–11M25 Anseong, South KoreaWorld Tennis TourClay Shunsuke Mitsui Chung Yun-seong Takeru Yuzuki6–7(3–7), 4–6Win6–11M15 Caloundra, AustraliaWorld Tennis TourHard Keisuke Saitoh Jesse Delaney Dayne Kelly6–3, 6–1Win6–12M15 Cairns, AustraliaWorld Tennis TourHard Kokoro Isomura Kody Pearson Henrik Wiersholm2–6, 1–6Win7–12M15 Doha, QatarWorld Tennis TourHard Masamichi Imamura Elliot Benchetrit Antoine Ghibaudo6–2, 6–3Loss7–13M15 Doha, QatarWorld Tennis TourHard Masamichi Imamura Yanki Erel Ergi Kirkin6–4, 3–6, [2–10]Loss7–14M15 Anseong, South KoreaWorld Tennis TourHard Ethan Cook Kenta Miyoshi Edward Winter3–6, 7–5, [6–10]Loss7–15M25 Aldershot, United Kingdom World Tennis TourHard Masamichi Imamura James Davis Matthew Summers6–4, 3–6, [10–12]Loss7–16M25 Takasaki, Japan World Tennis TourHard Keisuke Saitoh Yuta Kawahashi Ryuki Matsuda6–7(8–10), 7–6(7–5), [6–10]Loss7–17M25 Doha, Qatar World Tennis TourHard Yuta Kikuchi Tibo Colson Thijmen Loof6–7(5–7), 4–6Loss7–18M25 Santa Margherita di Pula, ItalyWorld Tennis TourClay Ryuki Matsuda Raúl Brancaccio Àlex Martínez3–6, 5–7Loss7–19M25 Santa Margherita di Pula, ItalyWorld Tennis TourClay Ryuki Matsuda Giovanni Oradini Marcello Serafini6–4, 6–7(6–8), [6–10]Win8–19Tbilisi, GeorgiaChallengerHard Masamichi Imamura Siddhant Banthia Ramkumar Ramanathan1–6, 6–3, [10–5]Loss8–20M25 Perth, AustraliaWorld Tennis TourHard Masamichi Imamura Finn Bass Ajeet Rai1–6, 6–7(3–7)Loss8–21M15 Nishitokyo, Japan World Tennis TourHard Shinji Hazawa Ryuki Matsuda Hikaru Shiraishi2–6, 6–1, [5–10]Loss8–22Phan Thiết, VietnamChallengerHard Yamato Sueoka Constantin Bittoun Kouzmine S D Prajwal Dev1–6, 6–7(0–7)
Junior Grand Slam finals Doubles: 1 (1 title) ResultYearTournamentSurfacePartnerOpponentsScoreWin2018 French OpenClay Ondřej Štyler Ray Ho Tseng Chun-hsin6–4, 6–4
External links
Official site: https://naokitajima.tennis/