All medalists.
IMO & IOI, including honourable mentions.
LCLin ChenChinaIMO2011Competition recordGold medalLLLincoln LiuHong KongIMO2024 · 2025Competition recordBronze medal · Gold medalLHLíney Halla KristinsdóttirIcelandIMO2003Competition recordHonourable mentionLZLingfu ZhangChinaIMO2013Massachusetts Institute of Technology (MIT)Indexed profileLMLingjie MeiChinaIMO2016Competition recordGold medalIndexed profileLLLing LinChinaIOI1995Competition recordGold medalLXLingrui XieHong Kong, ChinaIOI2021Competition recordSilver medalLHLin HanRepublic of KoreaIMO1998 · 1999Competition recordGold medalLHLin HeChinaIOI2003Competition recordGold medalLTLinh Tran TuanVietnamIOI2006Competition recordBronze medalLVLinh Vuong NguyenVietnamIOI2011Competition recordGold medalLKLin Kuan-MingTaiwanIMO1996冠崙股份有限公司AI與軟體顧問Indexed profile
Linsen LootsSouth AfricaIOI200310X InvestmentsSoftware EngineerAutumn profileLCLinus CooperAustraliaIMO2017FC DallasEvent StaffIndexed profileLLLinus LüchingerSwitzerlandIOI2023Competition recordHonourable mentionIndexed profileLTLinus TangUnited States of AmericaIMO2024Competition recordGold medalLVLinus VandeVondeleSwitzerlandIOI2025Competition recordHonourable mentionLYLinyun YuChinaIOI2008ByteDanceMachine Learning EngineerIndexed profileLFLionel FourquauxFranceIMO1996Competition recordSilver medalLSLiong Sauw MingIndonesiaIOI1998TeluuLead Software EngineerIndexed profileLHLior HadassiIsraelIMO2018 · 2019EnigmaMember of Technical StaffIndexed profileLYLior YehezkelyIsraelIOI2021Private #2Vulnerability ResearcherIndexed profileLMLi-Ping MoTaiwanIMO2004Competition recordSilver medal
Liran MarkinIsraelIOI2015 · 2016GenieIndexed profileLBLir BahackIsraelIMO2008Competition recordHonourable mentionLLLisa LoktevaSwedenIMO2013 · 2014Competition recordBronze medal · Honourable mentionIndexed profileLMLisa MeijNetherlandsIMO2026Competition recordHonourable mentionLALisandro AcuñaArgentinaIMO2020Competition recordHonourable mentionIndexed profileLFLisandro FilloyArgentinaIMO2015SOUTHWORKSSoftware DeveloperIndexed profile
Lisa SauermannGermanyIMO2007 · 2008 · 2009 · 2010 · 2011University of BonnProfessor of Mathematics (Hausdorff Chair)Autumn profileLWListiarso WastuargoIndonesiaIOI2008Metatech IDChief Revenue, Operation, and Technology Officer (CROTO)Indexed profileLCLiubomir ChiriacRepublic of MoldovaIMO2004 · 2005 · 2006Competition recordBronze medalLLLi-Vang Lozada ChangCubaIMO1989Trantor MKTCEO Deputy & Senior ML EngineerIndexed profileLOLīva OliņaLatviaIMO2021Cambridge Mobile TelematicsSoftware Engineer I, Data EngineeringIndexed profileLALivia Alexandra IlieRomaniaIMO2007 · 2008Competition recordGold medal · Silver medalIndexed profile
Livio FetahuAlbaniaIMO2014Tower Research CapitalQuantitative DeveloperAutumn profileLMLivio MileaRomaniaIMO1979Competition recordSilver medalLILiviu IgnatRomaniaIMO1997Institute of Mathematics of the Romanian Academy (IMAR)Senior Researcher IIndexed profileLPLiviu PaunescuRomaniaIMO2001T.L.T. INCASA SRLManagerIndexed profileLSLiviu SuciuRomaniaIMO1987Porsche EngineeringSoftware ArchitectIndexed profileLWLi Woon LimSingaporeIMO1990MORETH SDN BHDResearch and Development Project ManagerIndexed profileLYLi Yu ChuHong Kong, ChinaIOI2006Competition recordBronze medalLDLizaveta DauhialaBelarusIMO2013Competition recordBronze medalLMLizaveta ManzhulinaBelarusIMO2016Technische Universität BerlinWissenschaftliche Mitarbeiterin - Kombinatorische Optiemirung und GraphenalgorythmenIndexed profileLZLizhao ZhangChinaIMO1991Competition recordGold medalLVLiz VivasPeruIMO1998Competition recordSilver medalLČLjubomir ČukićYugoslaviaIMO1969Competition recordBronze medalIndexed profileLKLkhachinjalbuu KhatanbaatarMongoliaIMO1999Competition recordSilver medal
Lkhanaajav MijiddorjMongoliaIMO2017 · 2018CompletaFull-Stack & Agentic AI EngineerAutumn profileLBLoard BejkoAlbaniaIMO202191Life TiranaJunior Software EngineerIndexed profileLVLoek Van Der ZijdeItalyIMO2025Competition recordSilver medalIndexed profileLGLogan GlassonNew ZealandIOI2010 · 2011 · 2012 · 2013Competition recordBronze medal
Logan Guerrero DíazMexicoIOI2024Competition recordHonourable mentionAutumn profileLKLoh Kwong WengMalaysiaIMO2021 · 2022 · 2023 · 2024SquarepointQuantitative Research InternAutumn profileLSLoh ShanmingSingaporeIOI1995GoogleSoftware EngineerIndexed profileLBLoïc BurgerBelgiumIMO2010Competition recordHonourable mention
Loke GustafssonSwedenIMO2019 · 2020Jane StreetSoftware EngineerAutumn profileLZLoke Zhi KinMalaysiaIMO2006 · 2007 · 2008 · 2009Competition recordBronze medal · Silver medalLKLok Kan YuenHong Kong, ChinaIOI2018 · 2019Spire Healthcare Group plcRegistered NurseIndexed profileLYLok Yin SiuHong Kong, ChinaIOI2024 · 2025Competition recordSilver medal
Linsen LootsSouth AfricaIOI200310X InvestmentsSoftware EngineerAutumn profileLCLinus CooperAustraliaIMO2017FC DallasEvent StaffIndexed profileLLLinus LüchingerSwitzerlandIOI2023Competition recordHonourable mentionIndexed profileLTLinus TangUnited States of AmericaIMO2024Competition recordGold medalLVLinus VandeVondeleSwitzerlandIOI2025Competition recordHonourable mentionLYLinyun YuChinaIOI2008ByteDanceMachine Learning EngineerIndexed profileLFLionel FourquauxFranceIMO1996Competition recordSilver medalLSLiong Sauw MingIndonesiaIOI1998TeluuLead Software EngineerIndexed profileLHLior HadassiIsraelIMO2018 · 2019EnigmaMember of Technical StaffIndexed profileLYLior YehezkelyIsraelIOI2021Private #2Vulnerability ResearcherIndexed profileLMLi-Ping MoTaiwanIMO2004Competition recordSilver medalLiran MarkinIsraelIOI2015 · 2016GenieIndexed profileLBLir BahackIsraelIMO2008Competition recordHonourable mentionLLLisa LoktevaSwedenIMO2013 · 2014Competition recordBronze medal · Honourable mentionIndexed profileLMLisa MeijNetherlandsIMO2026Competition recordHonourable mentionLALisandro AcuñaArgentinaIMO2020Competition recordHonourable mentionIndexed profileLFLisandro FilloyArgentinaIMO2015SOUTHWORKSSoftware DeveloperIndexed profileLisa SauermannGermanyIMO2007 · 2008 · 2009 · 2010 · 2011University of BonnProfessor of Mathematics (Hausdorff Chair)Autumn profileLWListiarso WastuargoIndonesiaIOI2008Metatech IDChief Revenue, Operation, and Technology Officer (CROTO)Indexed profileLCLiubomir ChiriacRepublic of MoldovaIMO2004 · 2005 · 2006Competition recordBronze medalLLLi-Vang Lozada ChangCubaIMO1989Trantor MKTCEO Deputy & Senior ML EngineerIndexed profileLOLīva OliņaLatviaIMO2021Cambridge Mobile TelematicsSoftware Engineer I, Data EngineeringIndexed profileLALivia Alexandra IlieRomaniaIMO2007 · 2008Competition recordGold medal · Silver medalIndexed profileLivio FetahuAlbaniaIMO2014Tower Research CapitalQuantitative DeveloperAutumn profileLMLivio MileaRomaniaIMO1979Competition recordSilver medalLILiviu IgnatRomaniaIMO1997Institute of Mathematics of the Romanian Academy (IMAR)Senior Researcher IIndexed profileLPLiviu PaunescuRomaniaIMO2001T.L.T. INCASA SRLManagerIndexed profileLSLiviu SuciuRomaniaIMO1987Porsche EngineeringSoftware ArchitectIndexed profileLWLi Woon LimSingaporeIMO1990MORETH SDN BHDResearch and Development Project ManagerIndexed profileLYLi Yu ChuHong Kong, ChinaIOI2006Competition recordBronze medalLDLizaveta DauhialaBelarusIMO2013Competition recordBronze medalLMLizaveta ManzhulinaBelarusIMO2016Technische Universität BerlinWissenschaftliche Mitarbeiterin - Kombinatorische Optiemirung und GraphenalgorythmenIndexed profileLZLizhao ZhangChinaIMO1991Competition recordGold medalLVLiz VivasPeruIMO1998Competition recordSilver medalLČLjubomir ČukićYugoslaviaIMO1969Competition recordBronze medalIndexed profileLKLkhachinjalbuu KhatanbaatarMongoliaIMO1999Competition recordSilver medalLkhanaajav MijiddorjMongoliaIMO2017 · 2018CompletaFull-Stack & Agentic AI EngineerAutumn profileLBLoard BejkoAlbaniaIMO202191Life TiranaJunior Software EngineerIndexed profileLVLoek Van Der ZijdeItalyIMO2025Competition recordSilver medalIndexed profileLGLogan GlassonNew ZealandIOI2010 · 2011 · 2012 · 2013Competition recordBronze medalLogan Guerrero DíazMexicoIOI2024Competition recordHonourable mentionAutumn profileLKLoh Kwong WengMalaysiaIMO2021 · 2022 · 2023 · 2024SquarepointQuantitative Research InternAutumn profileLSLoh ShanmingSingaporeIOI1995GoogleSoftware EngineerIndexed profileLBLoïc BurgerBelgiumIMO2010Competition recordHonourable mentionLoke GustafssonSwedenIMO2019 · 2020Jane StreetSoftware EngineerAutumn profileLZLoke Zhi KinMalaysiaIMO2006 · 2007 · 2008 · 2009Competition recordBronze medal · Silver medalLKLok Kan YuenHong Kong, ChinaIOI2018 · 2019Spire Healthcare Group plcRegistered NurseIndexed profileLYLok Yin SiuHong Kong, ChinaIOI2024 · 2025Competition recordSilver medal