Rin Iwanaga
Rin Iwanaga is a Japanese badminton player affiliated with the Biprogy team. She won the silver medal at the 2022 Asian Championships partnering Kie Nakanishi. Iwanaga and Nakanishi claimed their first World Tour title at the 2023 Syed Modi International.
Career
2021
In 2021, Iwanaga and Nakanishi reached their first Super 500 final at the Hylo Open in November. They were defeated by their compatriots, Chisato Hoshi and Aoi Matsuda, securing runner-up position. Earlier that year, the pair won the Belgian International. They also competed in the Indonesia Masters and the Indonesia Open at the Indonesia Badminton Festival in Bali but were eliminated in the early rounds of both tournaments. In December, they made their World Championship debut held in Huelva, reaching the quarterfinals. By the end of the year, they entered the top 30 world rankings, reaching world No. 26.2022
In 2022, Iwanaga and Nakanishi won a silver medal at the Asian Championships held in Manila, losing to the then-World No. 1 pair Chen Qingchen and Jia Yifan of China in the final. In August, they participated in the World Championships held in Tokyo, where they were eliminated in the third round. Throughout their 2022 World Tour campaign, Iwanaga and Nakanishi experienced early-round losses for all tournaments they competed. They reached a then-new career-high ranking of world No. 15 as of 24 October 2022.2023: First BWF World Tour title, world No. 15
In 2023, Iwanaga and Nakanishi won their first BWF World Tour title together at the Syed Modi International in November. They also reached the semifinals of the Arctic Open and the Denmark Open. At the Denmark Open, they defeated two Chinese pairs, Liu Shengshu and Tan Ning in the second round and Zhang Shuxian and Zheng Yu in the quarterfinals, before they were defeated by another Chinese pair Chen Qingchen and Jia Yifan in the semifinals. Their 2023 season also included reaching the quarterfinals in five other tournaments: the India Open, the Thailand Open, the Singapore Open, the Korea Open, and the Australia Open. They finished the year by returning to a world ranking of No. 15, after their ranking had dropped to No. 26 earlier in the year.2024
In 2024, Iwanaga and Nakanishi reached the quarterfinals of the Malaysia Open in January by defeating third seeds, Kim So-yeong and Kong Hee-yong, marking their first quarterfinal appearance at a Super 1000 tournament. They won their first Super 750 title at the Denmark Open in October. This win was their fifth consecutive tournament final victory in 2024, following titles at the Spain Masters, Malaysia Masters, U.S. Open, and Canada Open. En route to the Denmark Open title, they defeated Baek Ha-na and Lee So-hee in the semifinals, achieving their first win against that pair. In the final, they beat the Paris 2024 Olympic silver medalists and then-world No. 1 pair Liu Shengshu and Tan Ning. This victory solidified their position as the second-ranked pair in the BWF World Tour Finals rankings and was their second win over Liu and Tan in three encounters. They also competed in the BWF World Tour Finals in December but were eliminated in the round-robin stage. They reached a new career-high ranking of world No. 5 as of 4 November.2025
Iwanaga began the 2025 season recovering from injuries suffered in late 2024. She injured her right shoulder in November 2024, followed by a torn abdominal muscle. Despite these injuries, Iwanaga and Nakanishi reached the final of the Singapore Open in June, finishing as runners-up to Kim Hye-jeong and Kong Hee-yong of South Korea. They also reached the quarterfinals at the All England Open in March, the Asian Championships in April, and the Indonesia Open in June. Iwanaga and Nakanishi reached a new career-high ranking of World No. 4 on 11 March. Additionally, Iwanaga was also part of the Japanese teams that won bronze medals at the Asia Mixed Team Championships in February and the Sudirman Cup in April.Achievements
World Championships
Women's doubles| Year | Venue | Partner | Opponent | Score | Result | Ref | ||||||||||||||||||||||||||||||||||||||
| 2025 | Adidas Arena, Paris, France |  Asian ChampionshipsWomen's doubles
|