Higashino was born in Iwamizawa, graduated from the Tomioka Senior High School, and joined the Unisys team in 2015.[3][7]
Higashino was selected to join national junior team competed at the 2014 Asian Junior Championships, and helped the team win the bronze medal.[8] At the World Junior Championships in Alor Setar, Malaysia, she won the bronze medals in the mixed doubles event with Yuta Watanabe and in the mixed team event.[9][10] In June 2014, she made his first appearance in the senior international event at the Japan Open, competed in the mixed doubles with Watanabe, but the duo was defeated in the first round. She reached her first final in the senior international event at the 2015 Russian Open a BWF Grand Prix tournament, where she and her partner Watanabe defeated by Chan Peng Soon and Goh Liu Ying.[11]
In 2016, Higashino won her first senior title at Vietnam International Challenge in the mixed doubles paired-up with Watanabe.[12] In 2017, Higashino and Watanabe have sufficient ranking points to entered the Superseries stage, and able to reached the semi-finals in the All England Open.[13]
2018: Break to top 5 BWF rankings, All England Open title
Significant progress occurs in 2018 season. Higashino with her partner Watanabe in the mixed doubles are able to break the international doubles stage by reaching third in the BWF rankings. Higashino and Watanabe became the first mixed doubles from Japan to win the All England Open since the tournament was first contested in 1899.[14] En route to the finals, they beating the top three seeds,[15] and then clinched the title after defeating the fifth seeded pair Zheng Siwei and Huang Yaqiong in the rubber game.[14] Both also won the Hong Kong Open after beating Wang Yilyu and Huang Dongping in the finals. It was their first win over the world silver medallists in six meetings.[16] Besides that, the duo finished in the semi-finals at the Malaysia, Japan, French, and Fuzhou China Opens;[17][18][19][20] as well in the year-end tournament BWF World Tour Finals.[21] Higashino also part of the Japanese national team that won the gold medal in the Asian Games.[22][23]
2019–2020: World Championships bronze
In the first half of the 2019 season, Higashino and Watanabe has won a title in the Malaysia Masters.[24] She reached the finals in the All England Open, losing to Zheng Siwei and Huang Yaqiong.[25] Together with the National team, she won the silver medal at the Asia Mixed Team Championships and at the Sudirman Cup.[26][27] In the second half of 2019 season, Higashino added a cap by defending the Hong Kong Open title,[28] and became a finalists in the Thailand Open.[29] Their journey in the remainder of the season does look quite difficult. In four meetings against Zheng Siwei and Huang Yaqiong, they only managed to win once, in the group stage of the World Tour Finals;[30] the rest were losses in the semi-finals of the World Championships, French Open and World Tour Finals.[31][32] The head-to-head record between the pairs stood at 2–8.[33]
Due to the COVID-19 pandemic, numerous tournaments on the 2020 BWF World Tour were either cancelled or rescheduled for later in the year. Higashino competed in the national events in December, and managed to claim his fourth mixed doubles consecutive title at the Japanese National Championships with Watanabe.[34]
2021: Second All England title, Olympic bronze, and World Championships silver
2022–2023: World #1, third All England title, and first Japanese mixed doubles to win the Japan Open
In 2022, Higashino only won a title, where she and her partner, Watanabe, successfully to defend the All England Open in March.[42] Furthermore, she and her partner won the silver medal in the World Championships defeating by Zheng Siwei and Huang Yaqiong in the finals,[43] and a bronze medal in the Asian Championships defeating by Wang Yilyu and Huang Dongping in the semi-finals.[44] Another results that they achieved in 2022 were the finalists in the Indonesia and Japan Opens.[45][46] Higashino and Watanabe then reached their career high as world number 1 in the BWF mixed doubles ranking on 8 November 2022.[47]
Higashino started the 2023 season by competing in the Malaysia Open, where she and her partner, Watanabe, finished as the finalists.[48] In the following week, they emerged as a champion in the India Open, after their opponent Wang Yilyu and Huang Dongping withdrawn from the final match.[49] In March, they unable to defend their All England Open title, since Watanabe struggling with injury in the second round against Kim Won-ho and Jeong Na-eun.[50] Higashino helps the national team advanced to the knocked out stage in the Sudirman Cup,[51] where the team finished in the semi-finals.[52] In June, Higashino and Watanabe reached the finals in the Singapore and Indonesia Opens.[53][54] In the next tournaments, they stopped in the quarter-finals of the Canada Open to Taiwanese pairing Lee Jhe-huei and Hsu Ya-ching,[55] and then in the semi-finals of the Korea Open to Chinese rising star Jiang Zhenbang and Wei Yaxin.[56] The duo then won the Japan Open, becoming the first ever Japanaese pairing to claimed the Japan Open title since it was first contested in 1982.[57] They clinched the bronze medal in the World Championships defeating by Seo Seung-jae and Chae Yoo-jung in the semi-finals.[58] She competed in the 2022 Asian Games, won a silver in the mixed doubles and a gold in the women's team event.[59] In the rest of the season, Higashino and Watanabe finished as the semi-finalists in the French Open,[60]Japan Masters,[61] as well in the year-end finals tournament the World Tour Finals.[62]
2024
Higashino and Watanabe opened the 2024 season as a champion in the Malaysia Open.[63] Another result that the duo achieved in the first half of the season were finalists in the All England Open,[64] quarter-finalists in the India Open,[65]French Open,[66] and at the Asian Championships.[67] In two tournaments before the Paris Olympics, they suffered early rounds defeat in the Singapore and Indonesia Opens.[68][69] She then made her second appearance at the Olympics in the 2024 Paris Olympics, winning a bronze medal after defeating Seo Seung-jae and Chae Yoo-jung in the bronze medal match.[6] Higashino ended his 13 years partnership with Watanabe, after the quarter-finals defeat in the Japan Open.[70]
Personal life
On 28 August 2024, she announced her marriage to former badminton player, Yu Igarashi.[71]
The BWF World Tour, which was announced on 19 March 2017 and implemented in 2018,[72] is a series of elite badminton tournaments sanctioned by the Badminton World Federation (BWF). The BWF World Tour is divided into levels of World Tour Finals, Super 1000, Super 750, Super 500, Super 300, and the BWF Tour Super 100.[73]
^Sukumar, Dev (10 January 2018). "Action-Packed Season Ahead!". Badminton World Federation. Archived from the original on 13 January 2018. Retrieved 15 January 2018.