Rin Iwanaga / Kie Nakanishi
Badminton 2026 Results, Match by Match

Swiss Open 2026

Super 300・Basel, Switzerland

🆕Seeded 3rd, they won two of their three matches at the Swiss Open and reached the last eight. First round on 11 March: Debora JILLE (NED) / Isabel LOHAU (GER) 21-18, 13-21, 21-13. Second round on 12 March: Amallia Cahaya PRATIWI / Siti Fadia Silva RAMADHANTI (INA) 21-19, 13-21, 21-14. 🔁Both days took exactly the same shape — win the opening game, lose the second 13-21, take the decider, the second game going by the same margin each time. Quarter-final on 13 March: LI Yi Jing / WANG Yi Duo (CHN) 14-21, 14-21. ⚡That pair went on to win the title. 🆕Added on 21 September 2026: these three results were already on our own Swiss Open 2027 page as the 2026 results. ⚠️The Nippon Badminton Association's day page for 12 March labels that second round "third round"; English Wikipedia and our own tournament page call it the second round. The opponent, the score and the date agree across all three.

76th All Japan Corporate Team Championships

All Japan Corporate Team Championships・Fukaya, Saitama, Japan

🆕BIPROGY were runners-up in both the men's and the women's competition. The two of them played two rubbers together, winning one and losing one. Semi-final, 20 June: they beat ACT SAIKYO's Misaki Kurashima and Maya Taguchi 17-15, 12-15, 15-9. 🔴Final, 21 June, first doubles: they lost 12-15, 16-14, 11-15 to Gifu Bluvic's Sayaka Hirota and Ayako Sakuramoto; our tournament page writes it from Gifu's side as 15-12, 14-16, 15-11. Iwanaga played two more rubbers with other partners — the group stage with Miyu Takahashi (15-1, 15-6) and the quarter-final with Arisa Igarashi (15-11, 16-14) — so she won three of her four rubbers on her own account. ⚠️Only the final is our own primary record; the rest come from the official live-results site. Played to 15 points, best of three, with no match times published.

Daihatsu Japan Open

Super 750・Tokyo Metropolitan Gymnasium

Seeded 7. In the first round on 15 July they beat Bengisu ERCETIN / Nazlican INCI (TUR) 21-17, 21-16 in 40 minutes. In the second round on 16 July they lost 15-21, 21-18, 11-21 in 74 minutes to compatriots Hinata SUZUKI / Nao YAMAKITA — the only three-game match we have recorded at this tournament.

China Open

Super 1000・Changzhou, China

Seeded 7. They beat Gabriela STOEVA / Stefani STOEVA (BUL) 21-14, 21-15, then 21-10, 21-11 in 29 minutes over ERCETIN / INCI (TUR) — the same pair they had beaten in the Japan Open first round the week before. In the quarter-finals they lost 8-21, 24-26 in 49 minutes to BAEK Ha Na / LEE So Hee (KOR, 3rd seeds), the second game going to 24-26.

BWF World Championships 2026

World Championships・New Delhi, India

Seeded 7 (the seedings were based on the world rankings of 28 July 2026) and byed through the first round. They won 21-15, 21-14 in 44 minutes against Hathaithip MIJAD / Napapakorn TUNGKASATAN (THA), then lost 16-21, 12-21 to home pair Treesa JOLLY / Gayatri GOPICHAND (IND). Japan's doubles campaign ended in all three doubles events on the same day.

China Masters

Super 750・Shenzhen, China

Seeded 6, with a bye in the first round. Their second round (3 September, their tournament opener) ended in a 20-22, 15-21 loss to Francesca CORBETT / Jennie GAI (USA) in 48 minutes. Losing the first game 20-22 proved costly, and the 6th seeds were out in the round of 16.

Asian Games 2026

Asian Games・Ichinomiya, Aichi, Japan

One of the two women's doubles pairs in Japan's squad (announced 19 May 2026), they won bronze in the individual event with three wins and one defeat. First round, 25 September: a Vietnamese pair 21-15, 21-8. Second round, 26 September: 4th seeds JIA Yi Fan / ZHANG Shu Xian (CHN) 9-21, 21-18, 21-15, coming back after losing the first game. Quarter-final, 27 September: YEUNG Nga Ting / YEUNG Pui Lam (HKG) 21-15, 19-21, 21-15. 🔴Semi-final, 28 September: 2nd seeds LEE So Hee / BAEK Ha Na (KOR) 13-21, 12-21. There is no bronze-medal match at the Asian Games, so both losing semi-finalists take bronze. In the team final against China on 24 September they were due to play the fourth match, but China had already won three and it was not played.

Arctic Open 2026

Super 500・Vantaa, Finland

Top seeds in the women's doubles, out in the second round. First round, 7 October: LI Yi Jing / WANG Yi Duo (CHN) 21-14, 21-16. Second round, 8 October: CHEN Fan Shu Tian / LUO Xu Min (CHN) 7-21, 20-22 (40 minutes) — the pair who went on to win the title. They were the runners-up in 2025, losing the final 7-21, 9-21 to Pearly TAN / Thinaah MURALITHARAN (MAS), after an all-Japanese semi-final against Arisa IGARASHI and Chiharu SHIDA won 26-24 in the deciding game. ⚠️These two matches are not in the sixteen-match count below (scores from Iwanaga and Nakanishi's side).

Denmark Open 2026

Super 750・Odense, Denmark

3rd seeds in the women's doubles, out in the first round. Their first-round match on 13 October was all-Japanese, and they lost it 14-21, 21-11, 16-21 to Sayaka Hirota / Ayako Sakuramoto. ⚠️This match is not in the sixteen-match count below (scores from Iwanaga and Nakanishi's side). The tournament ended on 18 October, with Hinata Suzuki / Nao Yamakita of Japan runners-up in women's doubles.

French Open 2026

Super 750・near Paris, France

3rd seeds in the women's doubles; three wins and out in the semi-final.
✅ 21 Oct, first round｜Rui Hirokami / Sayaka Hobara (JPN) 21-12, 20-22, 21-16
✅ 22 Oct, second round｜Francesca CORBETT / Jennie GAI (USA) 21-19, 21-19 (the pair that beat them 20-22, 15-21 at the China Masters on 3 September)
✅ 23 Oct, quarter-final｜Ririna Hiramoto / Chiharu Shida (JPN) 21-18, 16-21, 21-15
❌ 24 Oct, semi-final｜Pearly TAN / Thinaah MURALITHARAN (MAS, 2nd seeds) 17-21, 20-22

⚠️These four matches are not in the sixteen-match count below (scores from Iwanaga and Nakanishi's side). In the final on Sunday 25 October, Yuki Fukushima / Mayu Matsumoto (top seeds) came from a game down to beat Tan / Thinaah 10-21, 21-17, 21-16 and retain their 2025 title (see the tournament page).

Korea Open 2026

Super 500・Yeosu, South Korea

2nd seeds in the women's doubles (a first-round bye); one win and out in the quarter-final.
✅ 5 Nov, second round｜GRISELDA / SHIMIZU (AUS) 18-21, 21-9, 21-16
❌ 6 Nov, quarter-final｜CHEN / LUO (CHN) 21-15, 12-21, 17-21

⚠️These two matches are not in the sixteen-match count below (scores from Iwanaga and Nakanishi's side). They were the runners-up in 2025 in Suwon, after an all-Japanese semi-final against Yuki FUKUSHIMA / Mayu MATSUMOTO won 21-18, 14-21, 21-16. The 2026 edition is at Jinnam Stadium in Yeosu (see the tournament page).

Kumamoto Masters Japan 2026

Super 500・Kumamoto Prefectural Gymnasium

In the official BWF draw (checked 4 November 2026) they are 3rd seeds, and their first-round opponents are Francesca CORBETT / Jennie GAI (USA), the pair that beat them at the China Masters on 3 September (20-22, 15-21) and that they beat at the French Open on 22 October (21-19, 21-19). They were the runners-up here in 2025 too, losing the final 20-22, 19-21 to the top seeds Pearly TAN / Thinaah MURALITHARAN (MAS).

Hong Kong Open 2026

Super 500・Kai Tak Arena, Hong Kong

Our tournament page has not yet confirmed the 2026 entries. They were the runners-up in 2025 too, losing the final 17-21, 15-21 to JIA Yifan / ZHANG Shuxian (CHN). China won all five titles at the 2025 Hong Kong Open, and this runners-up finish was Japan's best result there.

Three tournaments they lost the final of in 2025 come round again in the autumn of 2026. We keep a page for all three, so the scores from last year's finals and this year's dates can sit side by side.

• From 6 to 11 October — Arctic Open (Vantaa, Finland, Super 500). In 2025 they lost the final 7-21, 9-21 to Pearly TAN / Thinaah MURALITHARAN. In 2026, as top seeds, they went out in the second round 7-21, 20-22 to CHEN Fan Shu Tian / LUO Xu Min (CHN).
• From 3 to 8 November — Korea Open (Yeosu, South Korea, Super 500). Runners-up in Suwon in 2025, after an all-Japanese semi-final against Yuki FUKUSHIMA / Mayu MATSUMOTO won 21-18, 14-21, 21-16. In 2026, as 2nd seeds, they lost the quarter-final 21-15, 12-21, 17-21 to CHEN / LUO (CHN).
• From 17 to 22 November — Hong Kong Open (Kai Tak Arena, Super 500). In 2025 they lost the final 17-21, 15-21 to JIA Yifan / ZHANG Shuxian.

At the 2026 Arctic Open they were top seeds and went out in the second round. At the 2026 Korea Open they were 2nd seeds and lost in the quarter-finals. Our Hong Kong Open 2026 page has not yet confirmed the entries, and we do not guess at names. The Kumamoto Masters Japan (10 to 15 November), the week before Hong Kong, was another of their 2025 runners-up finishes. What is listed above is the record of what happened in 2025, plus the 2026 dates as confirmed on our own tournament pages.

🆕We added their four Asian Games results on 28 September 2026, so the 2026 matches we record for them now number sixteen — nine wins and seven defeats. After we added the three Swiss Open results on 21 September there were twelve, exactly six each way; the three Asian Games wins put them ahead. The earliest is 11 March and the latest is the semi-final on 28 September. Their later October matches at the Arctic Open (two), the Denmark Open (one) and the French Open (four), and their November matches at the Korea Open (two), are not in the sixteen (see the result cards above).

• 🔁The Swiss Open first and second rounds took exactly the same shape. Each time they won the opening game, lost the second 13-21, and took the decider (21-13, then 21-14).
• ⚡LI Yi Jing / WANG Yi Duo, who beat them in the quarter-final, went on to win the title. Of the six defeats we hold from before the Asian Games, that is the only one where the winners went on to take the tournament.
• 📅The earliest result we hold for them is now 11 March. We hold no summary page for the January and February events, so those are not listed.

We do not write about why any of this happened — what is listed above is the scores themselves. Sources: our own Swiss Open 2027 page, the Nippon Badminton Association's day-by-day results for the 2026 Swiss Open, and the draw on English Wikipedia. Opponent, score and date agree across all three.

• 2025 — World Championships — women's doubles bronze
  Paris, from 25 to 31 August, at the Adidas Arena. Both bronze medals in the women's doubles went to Japan — the other to Nami Matsuyama and Chiharu Shida. Their club's official page lists the same result.
• 2024 — Five World Tour titles in one year
  Their club's official highlights list the Spain Masters, Malaysia Masters, US Open, Canada Open and Denmark Open. The Denmark Open is the most recent title on that official list.
• 2025 — Five runners-up finishes
  The same official list has the Singapore Open, Korea Open, Arctic Open, Hong Kong Open and Kumamoto Masters Japan as runners-up. They were runners-up at the Thailand Open in 2026 as well.
• 2024 — All Japan Corporate Championships — champions
  Japan's national title for company and club teams. Both players list it on their official club page.
• 2023 — Syed Modi International — women's doubles champions (Lucknow, India)
  Both players list this title on their official club page. 🔴Our own Syed Modi International 2026 page holds the score of that final: seeded 3, they beat Tanisha CRASTO / Ashwini PONNAPPA (IND, 7th seeds) 21-14, 17-21, 21-15. In the semi-final they came from a game down to beat Setyana MAPASA / Angela YU (AUS) 17-21, 21-17, 21-15. The tournament ran from 28 November to 3 December 2023. BIPROGY's official summaries for both players, our tournament page and the draw on English Wikipedia all agree.
• 2022 — Badminton Asia Championships — runners-up
  Both players list this on their official club page as well.
• 2026 — Asian Games — women's doubles bronze
  In Japan's squad named on 19 May 2026, they beat YEUNG Nga Ting / YEUNG Pui Lam (HKG) 21-15, 19-21, 21-15 in the quarter-final to secure a medal, then lost the semi-final 13-21, 12-21 to 2nd seeds LEE So Hee / BAEK Ha Na (KOR). There is no bronze-medal match, so that is bronze.

At the China Masters 2026 (Super 750, Shenzhen, 1 to 6 September), seeded 6, they had a bye in the first round but lost their second round on 3 September, their tournament opener, to Francesca CORBETT / Jennie GAI (USA) 20-22, 15-21, ending their run there.

The Asian Games 2026 in Ichinomiya, Aichi (20 to 29 September) brought bronze in the individual women's doubles (they lost the semi-final on 28 September 13-21, 12-21 to LEE So Hee / BAEK Ha Na of Korea). Then the autumn brings the Arctic Open in October and the Korea Open and Hong Kong Open in November — the three events where they were runners-up in 2025. The first of them, the Arctic Open, ended in the second round for the top seeds, and the second, the Korea Open, in the quarter-finals for the 2nd seeds.

🗓️October in Europe: They are in the Japan squad the Nippon Badminton Association named on 11 September 2026 for the Denmark Open and the French Open. At the Denmark Open 2026 (13–18 October, Denmark, Super 750) they were the 3rd seeds and lost their all-Japanese first-round match on 13 October to Sayaka Hirota / Ayako Sakuramoto 14-21, 21-11, 16-21. At the French Open 2026 (20–25 October, France, Super 750) that followed, they were 3rd seeds and reached the semi-final, beating Rui Hirokami / Sayaka Hobara in the first round and losing 17-21, 20-22 to Pearly TAN / Thinaah MURALITHARAN on 24 October. The week before Denmark they played the Arctic Open 2026 (6–11 October, Finland, Super 500) as self-funded entrants and went out in the second round as top seeds (7-21, 20-22 on 8 October to CHEN Fan Shu Tian / LUO Xu Min of China, who went on to win the title). They are not in the draw for the HYLO Open 2026 the week after (27 October – 1 November, Germany): the official BWF main draw published on 21 October has only three Japanese players, all in men's singles. At the Korea Open 2026 (3–8 November, Yeosu, Super 500) they were 2nd seeds with a first-round bye, beat GRISELDA / SHIMIZU (AUS) 18-21, 21-9, 21-16 in the second round on 5 November and lost the quarter-final on 6 November 21-15, 12-21, 17-21 to CHEN / LUO (CHN).

🗓️Next is the Kumamoto Masters Japan 2026 (10–15 November, Kumamoto Prefectural Gymnasium, Super 500). In the official BWF draw we checked on 4 November 2026 they are the 3rd seeds in women's doubles, and their first-round opponents are Francesca CORBETT / Jennie GAI (USA). They were runners-up at Kumamoto in 2025 as well (20-22, 19-21 in the final to the top seeds Pearly Tan / Thinaah Muralitharan).

🆕That same Hong Kong Open becomes a Super 750 in 2027 — the Hong Kong Open 2027, 18 to 23 May 2027 in Hong Kong (venue not yet announced). It is a promotion from Super 500 and the first in the history of the event, which began in 1982, and it runs from 2027 to 2030. Prize money rises from $500,000 to $1,100,000. 🔴A Super 750 requires the top 15 singles players and the top 10 doubles pairs in the world rankings to enter. They were world No. 6 in women's doubles as of 13 October 2026, so on current form they are inside that top 10 — but the rankings move every week, so we cannot say where they will stand in May 2027. ⏱Only 177 days separate the end of the 2026 edition (22 November) from the start of the 2027 one (18 May): the final they lost in 2025 comes round again within half a year, at a higher level.

⚠️ The Kumamoto Masters Japan 2026 draw is as checked on 4 November 2026; late withdrawals are possible. Our Hong Kong Open 2026 page has not yet confirmed the entries. We do not guess at names. Check the tournament pages and the official BWF draw for the confirmed field.

The sixteen 2026 matches we had recorded for them up to 28 September read nine wins and seven defeats, and ten of them finished in two games. Their seven October matches at the Arctic Open, the Denmark Open and the French Open, and their two Korea Open matches in November, are not in the sixteen. The six that went the distance were the Swiss Open first round (21-18, 13-21, 21-13) and second round (21-19, 13-21, 21-14), the Japan Open second round (15-21, 21-18, 11-21), the All Japan Corporate final (12-15, 16-14, 11-15), and the Asian Games second round (9-21, 21-18, 21-15) and quarter-final (21-15, 19-21, 21-15). The closest single game was the second game of the China Open quarter-final, which went to 24-26. A results table that only says "quarter-finals" cannot show you that game.

Badsheet records your own matches point by point, builds an official-style scoresheet and charts win rate and shot placement.

📮 Corrections and removal. This is an unofficial summary built from published information. If anything here is factually wrong, or if the player or their team would like this page taken down, please contact us and we will correct or remove it promptly. We do not publish anything about injuries, health or private life.