{{Short description|Japanese badminton player (born 1996)}} {{Use dmy dates|date=January 2023}} {{Infobox badminton player | name = Minoru Koga | country = Japan | birth_date = {{birth date and age|df=yes|1996|9|30}} | birth_place = Fukuoka, Japan | height = 1.66 m | weight = 63 kg | years_active = | handedness = Left | coach = | event = Men's singles | highest_ranking = 50 | date_of_highest_ranking = 19 May 2026 | current_ranking = 50 | date_of_current_ranking = 19 May 2026 | medal_templates = {{MedalSport | Men's badminton }} {{MedalCountry | {{JPN}} }} {{MedalCompetition | Asia Mixed Team Championships }} {{MedalSilver | 2019 Hong Kong | Mixed team }} {{MedalCompetition | World Junior Championships }} {{MedalBronze | 2014 Alor Setar | Mixed team }} {{MedalCompetition | Asian Youth Games }} {{MedalGold | 2013 Nanjing | Mixed doubles }} {{MedalCompetition | Asian Junior Championships }} {{MedalBronze | 2014 Taipei | Mixed team }} | bwfbadminton_id = 80062 }}
{{nihongo|'''Minoru Koga'''|古賀 穂|Koga Minoru|born 30 September 1996}} is a Japanese badminton player who competes in singles.<ref name="bwfprofile">{{cite web |title=Minoru KOGA {{!}} Profile |url=https://bwfworldtourfinals.bwfbadminton.com/player/80062/minoru-koga |publisher=Badminton World Federation |access-date=22 June 2025}}</ref> He is a former member of the Japanese national team (2018–2022) and is currently affiliated with the AC Nagano Parceiro Badminton Club.<ref name="joinacnagano" /> His junior international achievements include a gold medal in mixed doubles at the 2013 Asian Youth Games and bronze medals with the national team at the 2014 Asian and World Junior Championships. While studying at Waseda University, he won the men's singles title at the All Japan Intercollegiate Championships in 2017 and 2018. On the BWF World Tour, his best result was a runner-up finish at the 2018 Canada Open.
== Early life and career == Born in Fukuoka, Japan, Koga began playing badminton at the age of six at the Okagaki Junior club.<ref name="sjleagueprofile">{{cite web |title=Minoru Koga {{!}} Profile |url=https://www.sj-league.jp/team_playerinfo/team/2024/men/ntt-east/8.html |website=Badminton S/J League |access-date=22 June 2025 |archive-url=https://megalodon.jp/2026-0418-2250-36/https://www.sj-league.jp:443/team_playerinfo/team/2024/men/ntt-east/8.html |archive-date=18 April 2026 |language=ja}}</ref> During his childhood, he faced health challenges, including asthma, pneumonia, and severe food allergies. With dietary management supported by his parents, he developed a tactical playing style to compensate for his smaller stature. In 2011, while a second-year student at Tomioka Daiichi Junior High School in Fukushima Prefecture, he was practicing when the ceiling lights fell due to the Great East Japan Earthquake. He temporarily evacuated to his hometown in Fukuoka, but the local community prepared a new practice environment for him in Inawashiro just two months later. Deeply motivated to bring hope to the disaster-stricken region, he went on to sweep five titles at the national junior high school championships.<ref name="acnaganoprofile">{{cite web |title=Minoru Koga {{!}} Profile |url=https://parceiro-badminton.jp/kogaminoru/ |website=AC Nagano Parceiro |access-date=22 June 2025 |archive-url=https://megalodon.jp/2026-0418-2251-48/https://parceiro-badminton.jp:443/kogaminoru/ |archive-date=18 April 2025 |language=ja}}</ref><ref name="personal">{{cite web |title=PASSION: My feelings about badminton |url=https://minorukoga.fan/passion |website=Minoru Koga Official Site |access-date=28 April 2026 |archive-url=https://megalodon.jp/2026-0428-1453-48/https://minorukoga.fan:443/passion |archive-date=28 April 2026 |language=ja |url-status=live}}</ref>
=== Junior career === Koga won national singles titles across all three major junior age divisions: the All Japan Elementary School Championships (2008), the All Japan Junior High School Championships (2011), and the National High School Championships (Inter-High) (2014).<ref name="smashnetprofile">{{cite web |title=Minoru Koga {{!}} Profile |url=https://www.smash-net.tv/player/古賀-穂/ |publisher=SMASH and NET.TV |access-date=22 June 2025 |archive-url=https://megalodon.jp/2026-0418-2253-03/https://www.smash-net.tv:443/player/%E5%8F%A4%E8%B3%80-%E7%A9%82/ |archive-date=18 April 2026 |language=ja}}</ref> At the 2014 Inter-High, he defeated Kanta Tsuneyama in the singles final and led Tomioka High School to the team title.<ref name="inter-high14">{{cite web |title=Inter-High: Minoru Koga Achieves Double Crown, Akane Yamaguchi Secures Second Consecutive Victory!! |url=https://www.smash-net.tv/topic/【インターハイ】-古賀穂が２冠、山口茜２連覇！/ |publisher=SMASH and NET.TV |access-date=22 June 2025 |archive-url=https://megalodon.jp/2026-0418-2255-53/https://www.smash-net.tv:443/topic/【インターハイ】-古賀穂が２冠、山口茜２連覇！/ |archive-date=18 April 2026 |language=ja |date=6 August 2014}}</ref> Internationally, Koga partnered with Akane Yamaguchi to win the mixed doubles gold medal at the 2013 Asian Youth Games.<ref name="nanjing13" /> He was also a member of the Japanese team that won bronze medals at both the 2014 Asian and World Junior Championships.<ref name="ajcteam14">{{cite web |title=News Flash! Final Results of Badminton Asia Youth Championships 2014 |url=https://www.victorsport.com/news/6367/News-Flash-Final-results-of-Badminton-Asia-Youth-Championships-2014 |publisher=Victor Badminton |access-date=22 June 2025 |archive-url=https://web.archive.org/web/20231205090156/https://www.victorsport.com/news/6367/News-Flash-Final-results-of-Badminton-Asia-Youth-Championships-2014 |archive-date=5 December 2023 |date=19 February 2014}}</ref><ref name="wjcteam14">{{cite web |title=2014 World Junior Badminton Championships |url=http://badminton.or.jp/2014/world_junior/index.htm |publisher=Nippon Badminton Association |access-date=22 June 2025 |archive-url=https://web.archive.org/web/20180830082114/http://badminton.or.jp/2014/world_junior/index.htm |archive-date=30 August 2018 |language=ja}}</ref>
=== Collegiate career === In 2015, Koga enrolled at Waseda University to study sport sciences.<ref name="waseda18">{{cite web |title=[Series] "Heisei 30 (2018) Academic Year Graduation Commemorative Special Feature" Part 50: Minoru Koga / Badminton |url=https://wasedasports-sousupo.com/news/badminton/225673/ |website=Waseda Sports |access-date=22 June 2025 |archive-url=https://megalodon.jp/2026-0418-2257-38/https://wasedasports-sousupo.com:443/news/badminton/225673/ |archive-date=18 April 2026 |language=ja |date=12 March 2019}}</ref> He won back-to-back men's singles titles at the All Japan Intercollegiate Championships in 2017 and 2018.<ref>{{cite web |title=[Intercollegiate Championships] Waseda University's Minoru Koga Takes the Crown! <Men's Singles> |url=https://www.badspi.jp/201710262236/ |publisher=Badminton Spirit |access-date=22 June 2025 |archive-url=https://megalodon.jp/2026-0418-2258-49/https://www.badspi.jp:443/201710262236/ |archive-date=18 April 2026 |language=ja |date=27 October 2017}}</ref><ref name="Intercollegiate18">{{cite web |title=[Intercollegiate Championships] Minoru Koga Wins All-Waseda Final to Secure Second Consecutive Title! <Men's Singles> |url=https://www.badspi.jp/201810191500/ |publisher=Badminton Spirit |access-date=22 June 2025 |archive-url=https://megalodon.jp/2026-0418-2259-58/https://www.badspi.jp:443/201810191500/ |archive-date=18 April 2026 |language=ja |date=19 October 2018}}</ref> In his final year, he captained the Waseda team to a national intercollegiate team title.<ref>{{cite web |title=[Intercollegiate Championships] Waseda University Claims Second Consecutive Title with Overwhelming Strength! <Men's Team Event> |url=https://www.badspi.jp/201810150700/ |publisher=Badminton Spirit |access-date=22 June 2025 |archive-url=https://megalodon.jp/2026-0418-2301-17/https://www.badspi.jp:443/201810150700/ |archive-date=18 April 2026 |language=ja |date=15 October 2018}}</ref>
== Career == === 2018–2021: First international title === In 2018, while still a university student, Koga was selected for the Japanese national B team for the first time.<ref name="waseda18" /> That same year, he reached the final of the Super 100 Canada Open. Entering the tournament ranked 396th in the world, he finished as the runner-up to Lu Guangzu.<ref name="canada18" /> In March 2019, he was part of the squad that won silver at 2019 Asia Mixed Team Championships.<ref name="bamtc19">{{cite web |last=Pavitt |first=Michael |title=China crowned Badminton Asia Mixed Team Championships winners after beating holders Japan |url=https://www.insidethegames.biz/articles/1077170/china-crowned-badminton-asia-mixed-team-championships-winners-after-beating-holders-japan |website=Inside the Games |access-date=22 June 2025 |archive-url=https://web.archive.org/web/20190507070154/https://www.insidethegames.biz/articles/1077170/china-crowned-badminton-asia-mixed-team-championships-winners-after-beating-holders-japan |archive-date=7 May 2019 |date=24 March 2019}}</ref> Following his graduation, Koga joined the NTT East badminton team on 1 April 2019.<ref name="waseda18" /> He won his first senior international title at the 2019 Swedish Open, defeating Loh Kean Yew in the final.<ref name="sweden19" /> Later that year, he reached the semi-finals of the 2019 Vietnam Open, defeating Kunlavut Vitidsarn during his tournament run.<ref name="vietnam19">{{cite web |last1=Matsuda |first1=Keita |title=Results: Vietnam Open 2019 |url=https://www.badminton.or.jp/games/2019/vietnam/2019.html#day3 |website=Nippon Badminton Association |access-date=22 June 2025 |archive-url=https://web.archive.org/web/20250516180919/https://www.badminton.or.jp/games/2019/vietnam/2019.html#day3 |archive-date=16 May 2025 |language=ja |date=12 September 2019}}</ref><ref name="vietnam19bs">{{cite web |title=[Vietnam Open] Asuka Takahashi takes second place in women's singles! <Final Results> |url=https://www.badspi.jp/201908161230/ |website=Badminton Spirit |access-date=18 April 2026 |archive-url=https://web.archive.org/web/20251207125642/https://www.badspi.jp/201908161230/ |archive-date=7 December 2025 |language=ja |date=16 September 2019 |url-status=live}}</ref> However, his international career was temporarily suspended when overseas expeditions were halted for about two years due to the COVID-19 pandemic. Domestically, Koga won the All Japan Members Championships in 2019 and the Japan Ranking Circuit in 2021.<ref name="allmembers19">{{cite web |title=[All Japan Members] Minoru Koga and Natsumi Shimoda are the champions! <Men's and Women's Singles> |url=https://www.badspi.jp/201909041930/ |website=Badminton Spirit |access-date=22 June 2025 |archive-url=https://megalodon.jp/2026-0418-2303-45/https://www.badspi.jp:443/201909041930/ |archive-date=18 April 2026 |language=ja |date=4 September 2019}}</ref>
=== 2022–2024: Five international titles and world top 60 === In 2022, Koga resumed international competition, winning the Mexican International in April.<ref name="mexico23" /> After reaching only the quarter-finals of the All Japan Championships at the end of the year, he was dropped from the Japanese national team.<ref name="personal" />
Despite his removal from the national team, Koga won Thailand International in March 2023 reaching a career-high world ranking of No. 56.<ref name="thailand23" /> He subsequently claimed titles at the Bahrain International, and Malaysia International titles.<ref name="bahrain23" /><ref name="malaysia23" /> After competing in seven tournaments throughout 2023, he finished the year with a world ranking of No. 118.<ref name="bwfprofile" /> Domestically, he secured his second titles at both the All Japan Members Championships and the Japan Ranking Circuit in 2023.<ref name="allmembers23">{{cite web |title=[Badminton] Minoru Koga wins men's singles "I'm relieved," also defeating Takuma Kawamoto, whom he lost to last year <singles results> |url=https://www.nikkansports.com/sports/news/202309060000923.html |website= Nikkan Sports |access-date=22 June 2025 |archive-url=https://megalodon.jp/2026-0418-2305-34/https://www.nikkansports.com:443/sports/news/202309060000923.html |archive-date=22 June 2025 |language=ja |date=6 September 2023}}</ref><ref name="rankingcircuit25">{{cite web |title=[Japan Ranking Circuit 2025] Minoru Koga advances to the finals for the third consecutive year in the men's singles! Manami Suizu and Kana Furukawa advance to the finals in the women's singles! <Semi-final results/singles> |url=https://www.badspi.jp/202505231806/ |website=Badminton Spirit |access-date=22 June 2025 |archive-url=https://megalodon.jp/2026-0418-2306-27/https://www.badspi.jp:443/202505231806/ |archive-date=18 April 2026 |language=ja |date=23 May 2025}}</ref>
In 2024, competing as a non-national team player, Koga participated in only three tournaments, successfully defending his Malaysia International title.<ref name="malaysia24" /> Due to his limited participations, his world ranking dropped to No. 198 by the end of the year.<ref name="bwfprofile" />
=== 2025: Club transfer and two titles === Having missed national team selection for three consecutive years, he lacked opportunities to compete overseas, and his world ranking fell to No. 265 by March. He briefly considered retirement, but later decided to self-fund his career with the aim of qualifying for the 2028 Los Angeles Olympics.<ref name="personal" /> On 1 April 2025, he left his corporate position at NTT East to become a professional player affiliated with the AC Nagano Parceiro badminton club.<ref name="joinacnagano">{{cite web |title=Announcement: Player Minoru Koga to Join AC Nagano Parceiro Badminton Club |url=https://parceiro-badminton.jp/topteam/古賀-穂選手-ac長野パルセイロバドミントンクラブ/ |publisher=AC Nagano Parceiro |access-date=22 June 2025 |archive-url=https://megalodon.jp/2026-0418-2309-43/https://parceiro-badminton.jp:443/topteam/古賀-穂選手-ac長野パルセイロバドミントンクラブ/ |archive-date=18 April 2026 |language=ja |date=7 April 2025}}</ref> This transition allowed him to independently acquire sponsors to cover his international travel and tournament fees.<ref name="personal" /> This professional shift led to a resurgence in his international performance; he won titles at the Slovenia Future Series and the Belgian International, and finished as runner-up at the Lagos International.<ref name="slovenia25" /><ref name="belgian25" /><ref name="nigeria25" /> Koga concluded the season by reaching the semi-finals of the Syed Modi International, where he defeated top seed Jason Teh in the quarter-finals before retiring from his semi-final match due to injury .<ref name="syedmodi25qf">{{cite web |title=Syed Modi International badminton tournament: Tanvi Sharma, Unnati Hooda, Kidambi Srikanth march into semifinals |url=http://timesofindia.indiatimes.com/articleshow/125640069.cms?utm_source=contentofinterest&utm_medium=text&utm_campaign=cppst |website=The Times of India |access-date=17 April 2026 |archive-url=https://web.archive.org/web/20260130164355/https://timesofindia.indiatimes.com/sports/badminton/syed-modi-international-badminton-tournament-tanvi-sharma-unnati-hooda-kidambi-srikanth-march-into-semifinals/articleshow/125640069.cms |archive-date=30 January 2026 |date=28 November 2025 |url-status=live}}</ref><ref name="syedmodi25">{{cite web |last=Ganesan |first=Uthra |title=Syed Modi International 2025: Srikanth makes final; Tanvi, Unnati bow out in semis |url=https://sportstar.thehindu.com/badminton/syed-modi-international-2025-srikanth-beats-mithun-manjunath-tanvi-sharma-unnati-hooda-crash-out-treesa-gayatri-advance/article70339720.ece |website=Sportstar |access-date=17 April 2026 |archive-url=https://web.archive.org/web/20260417184301/https://sportstar.thehindu.com/badminton/syed-modi-international-2025-srikanth-beats-mithun-manjunath-tanvi-sharma-unnati-hooda-crash-out-treesa-gayatri-advance/article70339720.ece |archive-date=17 April 2026 |date=29 November 2025 |url-status=live}}</ref> By the end of 2025, his world ranking had improved from No. 284 in August to No. 86.
=== 2026 === Koga began 2026 by winning consecutive titles at the Estonian International and the Swedish Open, defeating Denmark's Mads Christophersen in both finals.<ref name="estonia26" /><ref name="swedish26" /> Later that year, at the German Open, he advanced from the qualifying rounds to the quarter-finals. He defeated the second seed and world No. 6, Li Shifeng, in the first round, and Lee Cheuk Yiu in the second round, before losing to Toma Junior Popov in the quarter-finals.<ref name="germanopen26">{{cite web |last=Hansen |first=Anders |title=Nhat Nguyen Defeats Chou Tien Chen in Germany |url=https://badmintoneurope.com/w/nhat-nguyen-defeats-chou-tien-chen-in-germany |website=Badminton Europe |access-date=26 February 2026 |archive-url=https://web.archive.org/web/20260226041741/https://badmintoneurope.com/w/nhat-nguyen-defeats-chou-tien-chen-in-germany |archive-date=26 February 2026 |date=25 February 2026}}</ref><ref>{{cite web |last=Gonzales |first=Sara |title=Podium hopes alive as for many Europeans |url=https://badmintoneurope.com/w/podium-hopes-alive-as-for-many-europeans |website=Badminton Europe |access-date=17 April 2026 |archive-url=https://megalodon.jp/2026-0418-0410-36/https://badmintoneurope.com:443/w/podium-hopes-alive-as-for-many-europeans |archive-date=17 April 2026 |date=27 February 2026 |url-status=live}}</ref><ref name="german26">{{cite web |title=German Open: Impressive Day for France |url=https://bwfworldtour.bwfbadminton.com/news-single/2026/02/28/german-open-impressive-day-for-france |website=Badminton World Federation |access-date=17 April 2026 |archive-url=https://web.archive.org/web/20260301120308/https://bwfworldtour.bwfbadminton.com/news-single/2026/02/28/german-open-impressive-day-for-france/ |archive-date=1 March 2026 |date=26 February 2026 |url-status=live}}</ref> In May, Koga reached the semi-finals of the Baoji China Masters, where he lost to his compatriot Riki Takei. He achieved a new career-high ranking of world No. 50 in May 2026.
== Personal life == His elder brother, Akira Koga, is also a badminton player affiliated with JTEKT Stingers.<ref name="sjleagueprofile" />
== Achievements == === Asian Youth Games === ''Mixed doubles'' {| class="sortable wikitable" style="font-size: 90%;" ! Year ! Venue ! Partner ! Opponent ! Score ! Result ! Ref |- style="background:#B0E0E6" | align="center" | 2013 | align="left" | Nanjing Sport Institute,<br />Nanjing, China | align="left" | {{flagicon|JPN}} Akane Yamaguchi | align="left" | {{flagicon|THA}} Dechapol Puavaranukroh<br />{{flagicon|THA}} Puttita Supajirakul | align="left" | 21–19, 19–21, 21–17 | style="text-align:left; background:white" | Gold '''Gold''' | style="text-align:center; background:white" | <ref name="nanjing13">{{cite web |title=Results: 2nd Asian Youth Games |url=http://www.badminton.or.jp/2013/asia_youthgames/index.htm |publisher=Nippon Badminton Association |access-date=22 June 2025 |archive-url=https://web.archive.org/web/20131106065957/http://www.badminton.or.jp/2013/asia_youthgames/index.htm#day5 |archive-date=6 November 2013 |language=ja |date=21 August 2013}}</ref> |}
=== BWF World Tour (1 runner-up) === The BWF World Tour, which was announced on 19 March 2017 and implemented in 2018,<ref>{{cite web |last=Alleyne |first=Gayle |title=BWF Launches New Events Structure |url=http://bwfbadminton.com/news-single/2017/03/19/bwf-launches-new-event-structure/ |publisher=Badminton World Federation |date=19 March 2017 |access-date=29 November 2017 |url-status=dead |archive-url=https://web.archive.org/web/20171201164159/http://bwfbadminton.com/news-single/2017/03/19/bwf-launches-new-event-structure/ |archive-date=1 December 2017}}</ref> 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 (part of the HSBC World Tour), and the BWF Tour Super 100.<ref>{{cite web |last=Sukumar |first=Dev |title=Action-Packed Season Ahead! |url=http://bwfworldtour.com/news-single/2018/01/10/action-packed-season-ahead/ |publisher=Badminton World Federation |date=10 January 2018 |access-date=15 January 2018 |url-status=live |archive-url=https://web.archive.org/web/20180113162925/http://bwfworldtour.com/news-single/2018/01/10/action-packed-season-ahead/ |archive-date=13 January 2018}}</ref>
''Men's singles'' {| class="sortable wikitable" style="font-size: 90%;" ! Year ! Tournament ! Level ! Opponent ! Score ! Result ! Ref |- | align="center" | 2018 | align="left" | Canada Open | align="left" | Super 100 | align="left" | {{flagicon|CHN}} Lu Guangzu | align="left" | 15–21, 10–21 | style="text-align:left; background:white" | {{silver2}} '''Runner-up''' | style="text-align:center; background:white" | <ref name="canada18">{{cite web |last1=Diamond |first1=James |title=Li Xuerui wins BWF Canada Open to continue injury comeback |url=https://www.insidethegames.biz/articles/1066665/li-xuerui-wins-bwf-canada-open-to-continue-injury-comeback |publisher=Inside the Games |access-date=22 June 2025 |archive-url=https://web.archive.org/web/20200920164336/https://www.insidethegames.biz/articles/1066665/li-xuerui-wins-bwf-canada-open-to-continue-injury-comeback |archive-date=20 September 2020 |date=24 June 2018}}</ref> |}
=== BWF International Challenge/Series (10 titles, 3 runners-up) === ''Men's singles'' {| class="sortable wikitable" style="font-size: 90%;" ! Year ! Tournament ! Opponent ! Score ! Result ! Ref |- style="background:#D5D5D5" | align="center" | 2019 | align="left" | Slovenian International | align="left" | {{flagicon|IND}} Sourabh Verma | align="left" | 17–21, 12–21 | style="text-align:left; background:white" | {{silver2}} '''Runner-up''' | style="text-align:center; background:white" | <ref name="slovenia19">{{cite web |last1=Ratnakar |first1=M |title=Shuttler Sourabh Verma wins Slovenia International title |url=https://timesofindia.indiatimes.com/sports/badminton/shuttler-sourabh-verma-wins-slovenia-international-title/articleshow/69388868.cms |publisher=Times of India |access-date=22 June 2025 |archive-url=https://web.archive.org/web/20201216053645/https://timesofindia.indiatimes.com/sports/badminton/shuttler-sourabh-verma-wins-slovenia-international-title/articleshow/69388868.cms |archive-date=16 December 2020 |date=18 May 2019}}</ref> |- style="background:#D5D5D5" | align="center" | 2019 | align="left" | Lao International | align="left" | {{flagicon|JPN}} Kodai Naraoka | align="left" | 20–22, 20–22 | style="text-align:left; background:white" | {{silver2}} '''Runner-up''' | style="text-align:center; background:white" | <ref name="laos19">{{cite web |last1=Goto |first1=Ai |title=Result: Laos International Series 2019 |url=https://www.badminton.or.jp/games/2018/lao/index.html#day6 |publisher=Nippon Badminton Association |access-date=22 June 2025 |archive-url=https://web.archive.org/web/20250116183225/https://www.badminton.or.jp/games/2018/lao/index.html#day6 |archive-date=16 January 2025 |date=24 February 2019}}</ref><ref name="laos192">{{cite web |title=Thailand wins mixed doubles title at Beer Lao tournament |url=https://badmintonthaitoday.com/news_detail.php?nid=2046 |publisher=Badminton Thai Today |access-date=18 April 2026 |archive-url=https://megalodon.jp/2026-0418-2244-40/https://badmintonthaitoday.com:443/news_detail.php?nid=2046 |archive-date=18 April 2026 |language=th |date=25 February 2019}}</ref> |- style="background:#D5D5D5" | align="center" | 2019 | align="left" | Swedish Open | align="left" | {{flagicon|SGP}} Loh Kean Yew | align="left" | 21–11, 21–15 | style="text-align:left; background:white" | {{gold1}} '''Winner''' | style="text-align:center; background:white" | <ref name="sweden19">{{cite web |title=Danny, Tan win mixed doubles title in Sweden |url=https://www.tnp.sg/sports/others/danny-tan-win-mixed-doubles-title-sweden |website=The New Paper |access-date=18 April 2026 |archive-url=https://web.archive.org/web/20220727005612/https://tnp.straitstimes.com/sports/others/danny-tan-win-mixed-doubles-title-sweden |archive-date=27 July 2022 |date=21 January 2019}}</ref> |- style="background:#D8CEF6" | align="center" | 2022 | align="left" | Mexican International | align="left" | {{flagicon|BRA}} Jonathan Matias | align="left" | 10–21, 22–20, 21–13 | style="text-align:left; background:white" | {{gold1}} '''Winner''' | style="text-align:center; background:white" | <ref name="mexico23">{{cite web |last=Fraga |first=John |title=Jonathan Matias takes second place in the Mexico Challenge |url=https://www.olimpiadatododia.com.br/badminton/432711-jonathan-matias-conquista-vice-campeonato-challenge-do-mexico/ |website=Olimpíada Todo Dia |access-date=18 April 2026 |archive-url=https://megalodon.jp/2026-0418-2114-56/https://www.olimpiadatododia.com.br:443/badminton/432711-jonathan-matias-conquista-vice-campeonato-challenge-do-mexico/ |archive-date=18 April 2026 |language=pt |date=16 April 2022}}</ref> |- style="background:#D8CEF6" | align="center" | 2023 | align="left" | Thailand International | align="left" | {{flagicon|TPE}} Chi Yu-jen | align="left" | 15–21, 21–17, 22–20 | style="text-align:left; background:white" | {{gold1}} '''Winner''' | style="text-align:center; background:white" | <ref name="thailand23">{{cite web |title=Thailand wins 2 Thailand International Challenge titles |url=https://www.badmintonthaitoday.com/news_detail.php?nid=3917 |website=Badminton Thai Today |access-date=18 April 2026 |archive-url=https://megalodon.jp/2026-0418-2117-27/https://www.badmintonthaitoday.com:443/news_detail.php?nid=3917 |archive-date=18 April 2026 |language=th |date=13 March 2023}}</ref> |- style="background:#D8CEF6" | align="center" | 2023 | align="left" | Malaysia International | align="left" | {{flagicon|JPN}} Takuma Kawamoto | align="left" | 21–17, 10–21, 21–11 | style="text-align:left; background:white" | {{gold1}} '''Winner''' | style="text-align:center; background:white" | <ref name="malaysia23">{{cite web |title=Japanese Shuttlers Sweep Three Titles At Petronas Malaysia International Badminton Championships |url=https://bernama.com/en/news.php?id=2245919 |website=Bernama |access-date=18 April 2026 |archive-url=https://megalodon.jp/2026-0418-2153-12/https://bernama.com:443/en/news.php?id=2245919 |archive-date=18 April 2026 |date=19 November 2023}}</ref> |- style="background:#D8CEF6" | align="center" | 2023 | align="left" | Bahrain International | align="left" | {{flagicon|JPN}} Riki Takei | align="left" | 11–21, 21–15, 21–18 | style="text-align:left; background:white" | {{gold1}} '''Winner''' | style="text-align:center; background:white" | <ref name="bahrain23">{{cite web |last=Sipra |first=Adnan |title=Koga rallies to down Takei in thriller for men’s singles title |url=https://www.gdnonline.com/Details/1296817 |website=Gulf Daily News |access-date=22 June 2025 |archive-url=https://web.archive.org/web/20250622044703/https://www.gdnonline.com/Details/1296817 |archive-date=22 June 2025 |date=27 November 2023}}</ref> |- style="background:#D8CEF6" | align="center" | 2024 | align="left" | Malaysia International | align="left" | {{flagicon|JPN}} Riku Hatano | align="left" | 21–19, 15–21, 21–11 | style="text-align:left; background:white" | {{gold1}} '''Winner''' | style="text-align:center; background:white" | <ref name="malaysia24">{{cite web |title=Men's Doubles Pair Miss Out On Title At Petronas Malaysia International Badminton Challenge 2024 |url=https://bernama.com/en/news.php?id=2343143 |website=Bernama |access-date=18 April 2025 |archive-url=https://megalodon.jp/2026-0418-2240-55/https://bernama.com:443/en/news.php?id=2343143 |archive-date=18 April 2026 |date=22 September 2024}}</ref> |- style="background:#D8CEF6" | align="center" | 2025 | align="left" | Lagos International | align="left" | {{flagicon|INA}} Prahdiska Bagas Shujiwo | align="left" | 17–21, 18–21 | style="text-align:left; background:white" | {{silver2}} '''Runner-up''' | style="text-align:center; background:white" | <ref name="nigeria25">{{Cite news |title=Indonesia Dominates as Lagos Int’l Badminton Classics 2025 Ends |url=https://www.thisdaylive.com/2025/08/31/indonesia-dominates-as-lagos-intl-badminton-classics-2025-ends/ |newspaper=This Day|access-date=5 September 2025 |archive-url=https://web.archive.org/web/20250831045147/https://www.thisdaylive.com/2025/08/31/indonesia-dominates-as-lagos-intl-badminton-classics-2025-ends/# |archive-date=31 August 2025 |date=31 August 2025 |url-status=live}}</ref> |- style="background:#E9E9E9" | align="center" | 2025 | align="left" | Slovenia Future Series | align="left" | {{flagicon|ENG}} Cholan Kayan | align="left" | 21–17, 24–22 | style="text-align:left; background:white" | {{gold1}} '''Winner''' | style="text-align:center; background:white" | <ref name="slovenia25">{{cite web |last1=Martinez |first1=Sara Gonzalez |title=Ivančič and Polanc defend their title on home soil |url=https://badmintoneurope.com/w/ivančič-and-polanc-defend-their-title-on-home-soil |website=Badminton Europe |access-date=8 September 2025 |archive-url=https://web.archive.org/web/20250908150109/https://badmintoneurope.com/w/ivančič-and-polanc-defend-their-title-on-home-soil |archive-date=8 September 2025 |date=8 September 2025 |url-status=live}}</ref> |- style="background:#D8CEF6" | align="center" | 2025 | align="left" | Belgian International | align="left" | {{flagicon|BEL}} Julien Carraggi | align="left" | 21–14, 22–20 | style="text-align:left; background:white" | {{gold1}} '''Winner''' | style="text-align:center; background:white" | <ref name="belgian25">{{cite web |title=No tournament victory in front of home crowd: Julien Carraggi has to admit superiority to Japanese |url=https://sporza.be/nl/2025/09/13/geen-toernooizege-voor-eigen-publiek-julien-carraggi-moet-meerdere-erkennen-in-japanner~1757766885108/ |website=Sporza |access-date=14 September 2025 |archive-url=https://web.archive.org/web/20250914093423/https://sporza.be/nl/2025/09/13/geen-toernooizege-voor-eigen-publiek-julien-carraggi-moet-meerdere-erkennen-in-japanner~1757766885108/ |archive-date=14 September 2025 |language=nl |date=13 September 2025 |url-status=live}}</ref><ref name="belgian252">{{cite web |title=Belgian International Badminton Championships - Julien Carraggi beaten in the final in Leuven |url=https://www.lalibre.be/dernieres-depeches/2025/09/13/internationaux-de-belgique-de-badminton-julien-carraggi-battu-en-finale-a-louvain-H75LEQJODBBYTN5YE7WXDMSGLQ/ |website=La Libre Belgique |access-date=18 April 2026 |archive-url=https://web.archive.org/web/20251219041330/https://www.lalibre.be/dernieres-depeches/2025/09/13/internationaux-de-belgique-de-badminton-julien-carraggi-battu-en-finale-a-louvain-H75LEQJODBBYTN5YE7WXDMSGLQ/ |archive-date=19 December 2025 |language=fr |date=13 September 2025 |url-status=live}}</ref> |- style="background:#D5D5D5" | align="center" | 2026 | align="left" | Estonian International | align="left" | {{flagicon|DEN}} Mads Christophersen | align="left" | 21–18, 11–21, 21–12 | style="text-align:left; background:white" | {{gold1}} '''Winner''' | style="text-align:center; background:white" | <ref name="estonia26">{{cite web |title=Yonex Estonian International 2026 titles awarded |url=https://badminton.ee/2026/01/11/jagati-yonex-estonian-international-2026-tiitlid/ |website=Estonian Badminton Federation |access-date=11 January 2026 |archive-url=https://web.archive.org/web/20260111173405/https://badminton.ee/2026/01/11/jagati-yonex-estonian-international-2026-tiitlid/ |archive-date=11 January 2026 |language=et |date=11 January 2026}}</ref> |- style="background:#D5D5D5" | align="center" | 2026 | align="left" | Swedish Open | align="left" | {{flagicon|DEN}} Mads Christophersen | align="left" | 21–16, 16–21, 21–18 | style="text-align:left; background:white" | {{gold1}} '''Winner''' | style="text-align:center; background:white" | <ref name="swedish26">{{cite web |last1=Aktor |first1=Lukas |title=Europe claims 2 gold and 1 silver at Swedish Open |url=https://badmintoneurope.com/w/europe-claims-2-gold-and-1-silver-at-swedish-open |website=Badminton Europe |access-date=20 January 2026 |archive-url=https://web.archive.org/web/20260120033055/https://badmintoneurope.com/w/europe-claims-2-gold-and-1-silver-at-swedish-open |archive-date=20 January 2026 |date=19 January 2026}}</ref> |} : {{Color box|#D8CEF6|border=darkgray}} BWF International Challenge tournament : {{Color box|#D5D5D5|border=darkgray}} BWF International Series tournament : {{Color box|#E9E9E9|border=darkgray}} BWF Future Series tournament
== Performance timeline == {{Performance key (badminton)}}
=== National team === * ''Junior level'' {| class="wikitable" style="font-size: 90%; text-align:center" ! Team events !! 2014 !! Ref |- | bgcolor="#ECF2FF"; align="left" | Asian Junior Championships | bgcolor="#cd7f32" | B | <ref name="ajcteam14" /> |- | bgcolor="#ECF2FF"; align="left" | World Junior Championships | bgcolor="#cd7f32" | B | <ref name="wjcteam14" /> |}
* ''Senior level'' {| class="wikitable" style="font-size: 90%; text-align:center" ! Team events !! 2019 !! Ref |- | bgcolor="#ECF2FF"; align="left" | Asia Mixed Team Championships | bgcolor=silver | S | <ref name="bamtc19" /> |}
=== Individual competitions === ==== Junior level ==== * ''Boys' singles'' {| class="wikitable" style="font-size: 90%; text-align:center" ! Events !! 2014 !! Ref |- | bgcolor="#ECF2FF"; align="left" | Asian Junior Championships | bgcolor="#afeeee" | 2R | |- | bgcolor="#ECF2FF"; align="left" | World Junior Championships | bgcolor="#afeeee" | 2R | |}
* ''Mixed doubles'' {| class="wikitable" style="font-size: 90%; text-align:center" ! Events !! 2013 !! Ref |- | bgcolor="#ECF2FF"; align="left" | Asian Youth Games | bgcolor=gold | '''G''' | <ref name="nanjing13" /> |}
==== Senior level ==== ''Men's singles'' {| style='font-size: 90%; text-align:center;' class='wikitable' ! rowspan="2" | Tournament ! colspan="9" | BWF World Tour !! rowspan="2" | Best ! rowspan="2" | Ref |- ! 2018 ! 2019 ! 2020 ! 2021 ! 2022 ! 2023 ! 2024 ! 2025 ! 2026 |- | align="left" | Thailand Masters | colspan="2" | A | colspan="2" style="color:#ccc" | NH | colspan="4" | A | bgcolor="#F0F8FF" | '''Q1''' | bgcolor="#F0F8FF" | '''Q1''' ('26) | |- | align="left" | German Open | colspan="2" | A | colspan="2" style="color:#ccc" | NH | colspan="4" | A | bgcolor="FFEBCD" | '''QF''' | bgcolor="FFEBCD" | '''QF''' ('26) | <ref name="german26" /> |- | align="left" | Swiss Open | colspan="2" | A | style="color:#ccc" | NH | colspan="5" | A | bgcolor="#F0F8FF" | '''Q1''' | bgcolor="#F0F8FF" | '''Q1''' ('26) | <ref name="swiss26">{{cite web |last=Zamri |first=Adam |title=Zii Jia beats Koga in first qualifying match at Swiss Open |url=https://www.thestar.com.my/sport/badminton/2026/03/10/zii-jia-beats-koga-in-first-qualifying-match-at-swiss-open |website=The Star |access-date=17 April 2026 |archive-url=https://megalodon.jp/2026-0418-0328-47/https://www.thestar.com.my:443/sport/badminton/2026/03/10/zii-jia-beats-koga-in-first-qualifying-match-at-swiss-open |archive-date=17 April 2026 |date=10 March 2026 |url-status=live}}</ref> |- | align="left" | Orléans Masters | colspan="2" | A | style="color:#ccc" | NH | colspan="5" | A | bgcolor="#F0F8FF" | '''Q2''' | bgcolor="#F0F8FF" | '''Q2''' ('26) | |- | align="left" | Baoji China Masters | colspan="6" style="color:#ccc" | N/A | colspan="2" | A | bgcolor="#FFFF00" | '''SF''' | bgcolor="#FFFF00" | '''SF''' ('26) | |- | align="left" | Malaysia Masters | colspan="3" | A | style="color:#ccc" | NH | colspan="4" | A | bgcolor="#afeeee" | '''1R''' | bgcolor="#afeeee" | '''1R''' ('26) | |- | align="left" | Australian Open | colspan="2" | A | colspan="2" style="color:#ccc" | NH | colspan="4" | A | Q | ('26) | |- | align="left" | U.S. Open | colspan="2" | A | colspan="3" style="color:#ccc" | NH | colspan="3" | A | Q | ('26) | |- | align="left" | Canada Open | bgcolor="#d8bfd8" | '''F''' | bgcolor="#afeeee" | 1R | colspan="2" style="color:#ccc" | NH | colspan="4" | A | Q | bgcolor="#d8bfd8" | '''F''' ('18) | <ref name="canada18" /> |- | align="left" | Vietnam Open | bgcolor="#afeeee" | 2R | bgcolor="#FFFF00" | '''SF''' | colspan="2" style="color:#ccc" | NH | colspan="4" | A | | bgcolor="#FFFF00" | '''SF''' ('19) | <ref name="vietnam19" /><ref name="vietnam19bs" /> |- | rowspan="2" align="left" | Indonesia Masters Super 100 | rowspan="2" | A | rowspan="2" bgcolor="#afeeee" | '''2R''' | rowspan="2" colspan="2" style="color:#ccc" | NH | rowspan="2" colspan="3" | A | A | | rowspan="2" bgcolor="#afeeee" | '''2R''' ('19, '25) | rowspan="2" | |- | bgcolor="#afeeee" | '''2R''' | |- | align="left" | Kaohsiung Masters | colspan="5" style="color:#ccc" | N/A | bgcolor="#afeeee" | '''2R''' | colspan="2" | A | | bgcolor="#afeeee" | '''2R''' ('23) | |- | align="left" | Malaysia Super 100 | colspan="5" style="color:#ccc" | N/A | colspan="2" | A | bgcolor="#afeeee" | '''2R''' | | bgcolor="#afeeee" | '''2R''' ('25) | <ref name="malaysia25">{{cite web |last=Salim |first=Faizal |title=Eogene upsets Japanese rival to reach Super 100 third round |url=https://www.nst.com.my/sports/badminton/2025/10/1295313/eogene-upsets-japanese-rival-reach-super-100-third-round?source=widget |website=New Straits Times |access-date=17 April 2026 |archive-url=https://megalodon.jp/2026-0418-0336-29/https://www.nst.com.my:443/sports/badminton/2025/10/1295313/eogene-upsets-japanese-rival-reach-super-100-third-round?source=widget |archive-date=17 April 2026 |date=15 October 2025 |url-status=live}}</ref> |- | align="left" | Japan Masters | colspan="5" style="color:#ccc" | N/A | A | bgcolor="#afeeee" | '''1R''' | A | | bgcolor="#afeeee" | '''1R''' ('24) | <ref name="kumamoto24">{{cite web |title=Badminton Kumamoto Masters 2024: Updates, Japanese Team Results, and Summary |url=https://www.olympics.com/ja/news/badminton-kumamoto-masters-2024-japanese-results-full-list |website=International Olympic Committee |access-date=18 April 2026 |archive-url=https://web.archive.org/web/20251211130956/https://www.olympics.com/ja/news/badminton-kumamoto-masters-2024-japanese-results-full-list |archive-date=11 December 2025 |language=ja |date=11 November 2024 |url-status=live}}</ref> |- | align="left" | Syed Modi International | colspan="2" | A | colspan="2" style="color:#ccc" | NH | colspan="3" | A | bgcolor="#FFFF00" | '''SF''' | | bgcolor="#FFFF00" | '''SF''' ('25) | <ref name="syedmodi25qf" /><ref name="syedmodi25" /> |- | align="left" | Akita Masters | bgcolor="FFEBCD" | '''QF''' | bgcolor="#afeeee" | 1R | colspan="3" style="color:#ccc" | NH | colspan="4" style="color:#ccc" | N/A | bgcolor="FFEBCD" | '''QF''' ('18) | <ref name="akita18">{{cite web |title=[Super 100] Three players and three pairs reach the semi-finals! The impressive run of Japanese women's singles and doubles continues! <Akita Masters> |url=https://www.badspi.jp/201807272255/ |website=Badminton Spirit |access-date=18 April 2026 |archive-url=https://web.archive.org/web/20251212012153/https://www.badspi.jp/201807272255/ |archive-date=12 December 2025 |language=ja |date=27 July 2018 |url-status=live}}</ref> |- | align="left" | '''Year-end ranking''' | 2018; | 144 | 2019; | 94 | 2020; | 104 | 2021; | 123 | 2022; | 82 | 2023; | 118 | 2024; | 198 | 2025; | 89 | 2026; | | Best; | '''50''' | |- ! Tournament ! 2018 !! 2019 !! 2020 !! 2021 !! 2022 !! 2023 !! 2024 !! 2025 !! 2026 !! Best !! Ref |}
== Record against selected opponents == Record against Year-end Finals finalists, World Championships semi-finalists, and Olympic quarter-finalists. Accurate as of 21 May 2026.<ref>{{cite web |title=Minoru KOGA head to head |url=https://bwfbadminton.com/players/head-to-head/?t1p1=80062 |publisher=Badminton World Federation |access-date=23 December 2025}}</ref>
{{col-begin}} {{col-break}} {| class=wikitable style="text-align:center; font-size:small" |- ! width="200" | Player ! width="50" | Matches ! width="50" | Win ! width="50" | Lost ! width="50" | {{abbr|Diff.|Difference}} |- | align="left" | {{flagicon|CHN}} Shi Yuqi | 1 || 0 || 1 || bgcolor="#ffddee" | –1 |- | align="left" | {{flagicon|CHN}} Zhao Junpeng | 1 || 1 || 0 || bgcolor="#ccffcc" | +1 |- | align="left" | {{flagicon|FRA}} Christo Popov | 1 || 1 || 0 || bgcolor="#ccffcc" | +1 |- | align="left" | {{flagicon|JPN}} Kodai Naraoka | 1 || 0 || 1 || bgcolor="#ffddee" | –1 |- | align="left" | {{flagicon|MAS}} Lee Zii Jia | 1 || 0 || 1 || bgcolor="#ffddee" | –1 |} {{col-break}} {| class=wikitable style="text-align:center; font-size:small" |- ! width="200" | Player ! width="50" | Matches ! width="50" | Win ! width="50" | Lost ! width="50" | {{abbr|Diff.|Difference}} |- | align="left" | {{flagicon|SGP}} Loh Kean Yew | 1 || 1 || 0 || bgcolor="#ccffcc" | +1 |- | align="left" | {{flagicon|THA}} Kunlavut Vitidsarn | 1 || 1 || 0 || bgcolor="#ccffcc" | +1 |- | align="left" | {{flagicon|THA}} Kantaphon Wangcharoen | 1 || 1 || 0 || bgcolor="#ccffcc" | +1 |- | align="left" | {{flagicon|VIE}} Nguyễn Tiến Minh | 1 || 1 || 0 || bgcolor="#ccffcc | +1 |} {{col-end}}
== References == {{Reflist}}
== External links == * {{BWFB|80062}} * {{BWFT|8D6BECF8-51A1-423B-8BB7-61BF9ED23D5F}} * {{Flashscore}} * {{InterSportStats|3000348321}} * [https://parceiro-badminton.jp/kogaminoru/ Minoru Koga] at AC Nagano Parceiro {{in lang|ja}} * [https://web.archive.org/web/20250710230035/https://www.badminton.or.jp/profile/koga_minoru.html Minoru Koga] at Nippon Badminton Association (archived) {{in lang|ja}} * {{Official website|https://minorukoga.fan/}} {{in lang|ja}}
{{Authority control}}
{{DEFAULTSORT:Koga, Minoru}} Category:Living people Category:1996 births Category:Badminton players from Fukuoka Prefecture Category:Japanese male badminton players Category:Waseda University alumni Category:21st-century Japanese sportsmen