is a Japanese tennis player. Hazawa has a career high ATP singles ranking of No. 501 achieved on 27 February 2023 and a career high doubles ranking of No. 249 achieved on 17 April 2023.
Hazawa has won 1 ATP Challenger doubles title at the 2022 Kobe Challenger with Yuta Shimizu.
Tour finals Singles 2 (1–1) LegendATP Challenger (0–0)ITF Futures (1–1)Finals by surfaceHard (1–1)Clay (0–0)Grass (0–0)Carpet (0–0)
ResultW–LDateTournamentTierSurfaceOpponentScoreLoss0–1M15 Seremban, MalaysiaWorld Tennis TourHard Daisuke Sumizawa0–6, 2–6Win1–1M15 Nakhon Si Thammarat, ThailandWorld Tennis TourHard S D Prajwal Dev6–3, 6–4
Doubles 15 (7–8) LegendATP Challenger (1–0)ITF Futures (6–8)Finals by surfaceHard (7–7)Clay (0–1)Grass (0–0)Carpet (0–0)
ResultW–LDateTournamentTierSurfacePartnerOpponentsScoreLoss0–1China F1, AnningFuturesClay Yuta Shimizu Te Rigele Wang Aoran5–7, 6–7(3–7)Win1–1Japan F4, TsukubaFuturesHard Hiroyasu Ehara Soichiro Moritani Kento Takeuchi6–4, 6–0Loss1–2Japan F5, KashiwaFuturesHard Yuta Shimizu Renta Tokuda Jumpei Yamasaki6–3, 4–6, [7–10]Win2–2M25 Matsuyama, JapanWorld Tennis TourHard Naoki Tajima Kim Cheong-eui Nam Ji-sung4–6, 6–1, [10–7]Loss2–3M25 Yinchuan, ChinaWorld Tennis TourHard Yuta Shimizu Sanchai Ratiwatana Sonchat Ratiwatana6–7(6–8), 3–6Loss2–4M15 Monastir, TunisiaWorld Tennis TourHard Ryan Nijboer Antonín Bolardt Andrew Paulson0–6, 5–7Win3–4M15 Monastir, TunisiaWorld Tennis TourHard Kaito Uesugi Alberto Barroso Campos Imanol López Morillo7–6(7–5), 6–4Loss3–5M15 Chiang Rai, ThailandWorld Tennis TourHard Takuto Niki Nam Ji-sung Song Min-kyu1–6, 4–6Win4–5M15 Chiang Rai, ThailandWorld Tennis TourHard Yuta Shimizu Pruchya Isaro Thantub Suksumrarn7–6(7–2), 6–1Win5–5M15 Heraklion, GreeceWorld Tennis TourHard Shuichi Sekiguchi Simon Anthony Ivanov Wong Hong-kit6–4, 4–6, [12–10]Loss5–6M15 Kuala Lumpur, MalaysiaWorld Tennis TourHard Kento Takeuchi Yuta Shimizu Ryota Tanuma6–7(4–7), 2–6Win6–6Kobe, JapanChallengerHard (indoor) Yuta Shimizu Andrew Harris John-Patrick Smith6–4, 6–4Loss6–7M25 Tsukuba, JapanWorld Tennis TourHard Hikaru Shiraishi Hsu Yu Hsiou Huang Tsung-hao6–7(6–8), 6–3, [5–10]Loss6–8M15 Nakhon Si Thammarat, ThailandWorld Tennis TourHard Ryoatro Taguchi Yuttana Charoenphon Kasidit Samrej7–6(10–8), 6–7(6–8), [5–10]Win7–8M15 Nakhon Si Thammarat, ThailandWorld Tennis TourHard Ryoatro Taguchi Blake Bayldon Blake Ellis6–4, 7–5
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