All medalists.
IMO & IOI, including honourable mentions.
KHKazuhiro HosakaJapanIOI2008 · 2009Competition recordGold medalKHKazuhiro HosakaJapanIMO2008 · 2009Competition recordSilver medal · Gold medalKMKazuki MasugiJapanIMO2018 · 2020Competition recordSilver medalKMKazuki MatoyaJapanIMO2015Preferred Networks, Inc.Software EngineerIndexed profileKYKazuki YamamotoJapanIMO2025Competition recordGold medalKKKazumi KasauraJapanIOI2012Competition recordSilver medalKAKedie Ange Modeste KouiamedoIvory CoastIMO2025 · 2026Competition recordHonourable mention · Bronze medalKCKeegan Carruthers-SmithSouth AfricaIOI2006Competition recordSilver medalIndexed profileKMKee Moon SongRepublic of KoreaIOI1999Competition recordGold medalKdKees den TexNetherlandsIMO2021 · 2022Competition recordHonourable mention · Bronze medalIndexed profileKLKees LigtenbergNetherlandsIOI2011RabobankCredit Risk SpecialistIndexed profileKDKefan DongChinaIOI2016OpenAIMember of Technical StaffIndexed profileKIKei IrieJapanIMO2003 · 2004Competition recordSilver medalKLKeiran LewellenNew ZealandIMO2017 · 2018Cornell UniversityResearcherIndexed profileKKKeisuke KakehiJapanIOI2026Competition recordBronze medalKKKeisuke KoideJapanIMO2023The University of TokyoStudentIndexed profileKAKeith Allen GuthrieSouth AfricaIOI1992Competition recordSilver medalKYKeith Yu -Tao WongAustraliaIMO2026Competition recordHonourable mentionKTKei Tsi Daniel ChengHong KongIMO2001 · 2002Competition recordSilver medalKAKeivan Alizadeh VahidIranIOI2013AppleMachine Learning EngineerIndexed profileKMKeivan MallahiIslamic Republic of IranIMO1995Competition recordSilver medal
Keivan RezaeiIranIOI2018University of Maryland, College ParkPhD CandidateAutumn profileKSKeiya SakabeJapanIOI2017Competition recordSilver medalIndexed profileKJKeldon JonesUnited States of AmericaIOI1996Keldon Jones Software LLCPresidentIndexed profileKMKeler MarkuAlbaniaIMO2006Charles River AssociatesVice PresidentIndexed profileKNKelven NathanaelIndonesiaIOI2024 · 2025Competition recordSilver medalIndexed profileKLKelvin Lim Chen HaoSingaporeIOI1999Black DuckHead of Sales Engineering (APAC)Indexed profileKAKemal AtajanovTurkmenistanIMO2019Competition recordHonourable mention
Kende KalinaHungaryIMO2011NatWest Commercial and InstitutionalQuantitative DeveloperAutumn profileKHKeng Hee YeoSingaporeIMO1998Changi General HospitalSenior Therapy AssistantIndexed profileKMKengo MatsuyamaJapanIOI1994Competition recordSilver medalKKKenneth Kok Ming WongAustraliaIOI2009Competition recordBronze medalKTKenneth Tan CoPhilippinesIMO2012Competition recordBronze medalIndexed profileKTKenneth Tay JingyiSingaporeIMO2004Singapore Armed ForcesArmour Infantry SignallerIndexed profileKOKen OguraJapanIOI2014Competition recordSilver medalKIKensuke ImanishiJapanIOI2010 · 2011Competition recordSilver medalKYKensuke YoshidaJapanIMO2011GAC HONDA R&D Co., Ltd.Operations EngineerIndexed profileKIKentaro ImajoJapanIOI2006Preferred Networks, Inc.Software EngineerIndexed profileKNKentaro NagaoJapanIMO1997 · 1998 · 1999 · 2000Competition recordSilver medal · Gold medalKNKento NomuraJapanIMO2012 · 2013Competition recordSilver medalKWKent Wai Kit HuynhCanadaIMO2007Competition recordBronze medalKCKeny CarlosamaEcuadorIMO2022 · 2024Competition recordHonourable mention · Bronze medalKCKeon ChoiCanadaIMO2000Competition recordBronze medal
Kerim KochekovTurkmenistanIOI2018Hong Kong University of Science and TechnologyPhD CandidateAutumn profileKŠKerim ŠurulizBosnia and HerzegovinaIMO1997AbtraceChief Technology OfficerIndexed profile
Kerim Yasin OktayTürkiyeIMO2004Freestone Grove PartnersMember of Technical StaffAutumn profileKMKeron MootoosinghTrinidad and TobagoIMO2007Massy Wood Group Ltd.Senior Structural EngineerIndexed profileKPKerry PorrillSouth AfricaIMO2020 · 2021Competition recordHonourable mention · Bronze medalIndexed profileKSKerry Shastri SinghTrinidad and TobagoIMO2009 · 2010Geisinger Medical CenterCardiology FellowIndexed profile
Kerven DurdymyradovTurkmenistanIMO2010 · 2011QutwoMember of Technical StaffIndexed profile
Ker Yang LeeSingaporeIMO2018QuantedgeQuantitative ResearcherAutumn profileKDKeshav DhandhaniaIndiaIOI2009 · 2010SierraResearch EngineerIndexed profileKTKester TongAustraliaIMO1999Competition recordBronze medalKČKęstutis ČesnavičiusLithuaniaIOI2007Competition recordSilver medalKČKęstutis ČesnavičiusLithuaniaIMO2006 · 2007Competition recordBronze medal · Gold medalKVKęstutis VilčinskasLithuaniaIOI2010 · 2011 · 2012Competition recordBronze medal · Silver medal
Ketevan TsimakuridzeGeorgiaIOI2022Citadel SecuritiesSoftware EngineerAutumn profileKAKevin Adi SenjayaIndonesiaIMO2024Competition recordGold medalIndexed profileKBKevin BackhouseNetherlandsIMO1994GitHubSecurity ResearcherIndexed profileKBKevin BurriSwitzerlandIMO2012 · 2013Competition recordBronze medalIndexed profile
Keivan RezaeiIranIOI2018University of Maryland, College ParkPhD CandidateAutumn profileKSKeiya SakabeJapanIOI2017Competition recordSilver medalIndexed profileKJKeldon JonesUnited States of AmericaIOI1996Keldon Jones Software LLCPresidentIndexed profileKMKeler MarkuAlbaniaIMO2006Charles River AssociatesVice PresidentIndexed profileKNKelven NathanaelIndonesiaIOI2024 · 2025Competition recordSilver medalIndexed profileKLKelvin Lim Chen HaoSingaporeIOI1999Black DuckHead of Sales Engineering (APAC)Indexed profileKAKemal AtajanovTurkmenistanIMO2019Competition recordHonourable mentionKende KalinaHungaryIMO2011NatWest Commercial and InstitutionalQuantitative DeveloperAutumn profileKHKeng Hee YeoSingaporeIMO1998Changi General HospitalSenior Therapy AssistantIndexed profileKMKengo MatsuyamaJapanIOI1994Competition recordSilver medalKKKenneth Kok Ming WongAustraliaIOI2009Competition recordBronze medalKTKenneth Tan CoPhilippinesIMO2012Competition recordBronze medalIndexed profileKTKenneth Tay JingyiSingaporeIMO2004Singapore Armed ForcesArmour Infantry SignallerIndexed profileKOKen OguraJapanIOI2014Competition recordSilver medalKIKensuke ImanishiJapanIOI2010 · 2011Competition recordSilver medalKYKensuke YoshidaJapanIMO2011GAC HONDA R&D Co., Ltd.Operations EngineerIndexed profileKIKentaro ImajoJapanIOI2006Preferred Networks, Inc.Software EngineerIndexed profileKNKentaro NagaoJapanIMO1997 · 1998 · 1999 · 2000Competition recordSilver medal · Gold medalKNKento NomuraJapanIMO2012 · 2013Competition recordSilver medalKWKent Wai Kit HuynhCanadaIMO2007Competition recordBronze medalKCKeny CarlosamaEcuadorIMO2022 · 2024Competition recordHonourable mention · Bronze medalKCKeon ChoiCanadaIMO2000Competition recordBronze medalKerim KochekovTurkmenistanIOI2018Hong Kong University of Science and TechnologyPhD CandidateAutumn profileKŠKerim ŠurulizBosnia and HerzegovinaIMO1997AbtraceChief Technology OfficerIndexed profileKerim Yasin OktayTürkiyeIMO2004Freestone Grove PartnersMember of Technical StaffAutumn profileKMKeron MootoosinghTrinidad and TobagoIMO2007Massy Wood Group Ltd.Senior Structural EngineerIndexed profileKPKerry PorrillSouth AfricaIMO2020 · 2021Competition recordHonourable mention · Bronze medalIndexed profileKSKerry Shastri SinghTrinidad and TobagoIMO2009 · 2010Geisinger Medical CenterCardiology FellowIndexed profileKerven DurdymyradovTurkmenistanIMO2010 · 2011QutwoMember of Technical StaffIndexed profileKer Yang LeeSingaporeIMO2018QuantedgeQuantitative ResearcherAutumn profileKDKeshav DhandhaniaIndiaIOI2009 · 2010SierraResearch EngineerIndexed profileKTKester TongAustraliaIMO1999Competition recordBronze medalKČKęstutis ČesnavičiusLithuaniaIOI2007Competition recordSilver medalKČKęstutis ČesnavičiusLithuaniaIMO2006 · 2007Competition recordBronze medal · Gold medalKVKęstutis VilčinskasLithuaniaIOI2010 · 2011 · 2012Competition recordBronze medal · Silver medalKetevan TsimakuridzeGeorgiaIOI2022Citadel SecuritiesSoftware EngineerAutumn profileKAKevin Adi SenjayaIndonesiaIMO2024Competition recordGold medalIndexed profileKBKevin BackhouseNetherlandsIMO1994GitHubSecurity ResearcherIndexed profileKBKevin BurriSwitzerlandIMO2012 · 2013Competition recordBronze medalIndexed profile