Hiroki Nishi

is a Japanese badminton player who specializes in doubles. He is a member of the Japanese national team and plays for the BIPROGY team. Nishi has won three BWF World Tour Super 100 titles: two in mixed doubles with Akari Sato and one in men's doubles with Kakeru Kumagai. He has achieved a career-high world ranking of No. 21 in men's doubles and No. 30 in mixed doubles. In team events, he contributed to Japan securing bronze medals at the 2025 Asia Mixed Team Championships, as well as the country's first men's team title at the 2026 Asia Team Championships.

Early career Nishi began playing badminton at the Nagaokakyo City Sports Shonendan junior club. He attended Oharano Junior High School and Kyoto Prefectural Otokuni High School. He represented Japan at the 2019 World Junior Championships, where the team earned a bronze medal in the mixed team event.

After graduating in 2021, Nishi enrolled at Ryukoku University, where he studied Sports Science. which led to their selection for the 2023 Japanese national B team. They were the first student-athletes from the Ryukoku University Badminton Club to be selected for the national team. In his final year at university, Nishi won the mixed doubles title at the 2024 All Japan Inter-Collegiate Championships with partner Sumire Nakade.

Career 2023 In 2023, Nishi and Sato won three international titles. They secured their first World Tour title at the Vietnam Open, defeating Ruttanapak Oupthong and Jhenicha Sudjaipraparat in the final. The pair subsequently won the Kaohsiung Masters by defeating the top-seeded Indonesian pair of Dejan Ferdinansyah and Gloria Emanuelle Widjaja. They also won the Indonesia International and finished as runners-up at the Indonesia Masters Super 100.

2024 In 2024, Nishi competed in both men's and mixed doubles. He formed a men's doubles partnership with Kakeru Kumagai. The pair finished as runners-up at the Super 100 Odisha Masters and the Kazakhstan International. In mixed doubles, Nishi and Sato won the Saipan International title and advanced to the quarter-finals of the Super 300 Orléans Masters. The pair achieved a career-high world ranking of No. 30 on 30 July. On the national circuit, they finished as runners-up at the All Japan Championships after an injury to Sato forced them to retire in the final.

2025 Nishi turned professional on 1 April, joining the BIPROGY team following his graduation from university. He was part of the Japanese squad that earned a bronze medal at the Asia Mixed Team Championships. In mixed doubles, he and Sato made their Asian Championships debut, eliminated in the first round after winning their initial round-robin matches. The pair later secured their first national title at the Japan Ranking Circuit, defeating Olympic medalist Yuta Watanabe and Misaki Matsutomo in the final. Their partnership concluded on 1 July, following Sato's retirement from professional badminton.

Focusing on men's doubles with Kumagai, Nishi won his first international title as a pair at the Northern Marianas Open. He was part of the Japanese team that won Japan's first men's team title at the Asia Team Championships. In the final against China, Nishi and Kumagai defeated He Jiting and Ren Xiangyu in three games. In May, Nishi competed in his first Thomas Cup in Horsens, where the team finished in fifth place. is a series of elite badminton tournaments sanctioned by the Badminton World Federation (BWF). The BWF World Tours are divided into levels of World Tour Finals, Super 1000, Super 750, Super 500, Super 300, and the BWF Tour Super 100.

Men's doubles Year Tournament Level Partner Opponent Score Result Ref 2024 Odisha Masters Super 100 Kakeru Kumagai Huang Di Liu Yang 13–21, 21–19, 25–27 Runner-up 2025 (I) Indonesia Masters Super 100 Kakeru Kumagai Jin Yong Na Sung-seung 19–21, 21–13, 13–21 Runner-up 2025 Kaohsiung Masters Super 100 Kakeru Kumagai Su Ching-heng Wu Guan-xun 21–18, 21–17 Winner

Mixed doubles Year Tournament Level Partner Opponent Score Result Ref 2023 (I) Indonesia Masters Super 100 Akari Sato Yap Roy King Valeree Siow 21–13, 14–21, 14–21 Runner-up 2023 Vietnam Open Super 100 Akari Sato Ruttanapak Oupthong Jhenicha Sudjaipraparat 15–21, 21–18, 21–14 Winner 2023 Kaohsiung Masters Super 100 Akari Sato Dejan Ferdinansyah Gloria Emanuelle Widjaja 22–20, 12–21, 21–14 Winner

BWF International Challenge/Series (3 titles, 1 runner-up) Men's doubles Year Tournament Partner Opponent Score Result Ref 2024 Kazakhstan International Kakeru Kumagai Lucas Corvée Ronan Labar 14–21, 19–21 Runner-up 2025 Northern Marianas Open Kakeru Kumagai Haruki Kawabe Kenta Matsukawa 21–15, 23–25, 21–13 Winner

Mixed doubles Year Tournament Partner Opponent Score Result Ref 2023 (II) Indonesia International Akari Sato Choong Hon Jian Go Pei Kee 22–20, 18–21, 21–14 Winner 2024 Saipan International Akari Sato Yuichi Shimogami Sayaka Hobara 21–11, 21–10 Winner

BWF International Challenge tournament

Performance timeline

National team Junior level Team events 2019 Ref World Junior Championships B

Senior level Team events 2026 Ref Asia Team Championships G Asian Games Q Thomas Cup 5th

Individual competitions Junior level Boys' doubles Events 2019 World Junior Championships 3R

Mixed doubles Events 2019 Ref World Junior Championships 3R

Senior level Men's doubles Events !! 2026 !! Ref

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Kakeru Kumagai Players Liang Weikeng & Wang Chang 1 0 1 –1 Satwiksairaj Rankireddy & Chirag Shetty 1 0 1 –1 Takuro Hoki & Yugo Kobayashi 1 0 1 –1 Goh Sze Fei & Nur Izzuddin 2 0 2 –2 Kim Won-ho & Seo Seung-jae 2 0 2 –2

Akari Sato Players Jiang Zhenbang & Wei Yaxin 1 0 1 –1 Amri Syahnawi & Nita Violina Marwah 2 0 2 –2 Kim Won-ho & Jeong Na-eun 1 0 1 –1