All medalists.
IMO & IOI, including honourable mentions.
RJRoel JanssenNetherlandsIMO1987Competition recordSilver medal
Rogelio Guerrero ReyesMexicoIMO2022 · 2023 · 2024MercorAI Engineering Student / IMO Gold MedalistAutumn profileRERoger Espel LlimaSpainIMO1992Competition recordBronze medal
Rogério Aristida Guimarães JuniorBrazilIOI2016 · 2017CaltechGraduate ResearcherAutumn profileRLRoger Lidón ArdanuySpainIMO2022 · 2023Competition recordBronze medalRMRoger MongCanadaIMO2001 · 2002University of PittsburghAssociate ProfessorIndexed profileRGRohan GoyalIndiaIMO2021Competition recordBronze medalRGRohin GargUnited States of AmericaIOI2023 · 2024Character.AIAI Research & Development InternIndexed profileRJRohit JoshiIndiaIMO2004Competition recordSilver medal
Rohit KhandekarIndiaIMO1995Self EmployedMachine Learning SpecialistAutumn profileRMRoie MarianerIsraelIOI1998 · 1999 · 2000 · 2001Competition recordBronze medal · Silver medal · Gold medalAutumn profileRURokas UrbonasLithuaniaIOI2020Competition recordBronze medalAutumn profileRHRoland HablutzelVenezuelaIMO2005Competition recordHonourable mentionIndexed profileRLRoland LakatosHungaryIOI1996Competition recordBronze medalRMRolando Miguel Lorenzo VeraCubaIOI1993Competition recordBronze medal
Rolando Trujillo RasúaCubaIMO1999 · 2000Universitat Rovira i VirgiliRamón y Cajal ResearcherAutumn profileRURolando Uranga PiñaCubaIMO1989 · 1990Cencec S.A.BioestadísticoIndexed profileRVRolando VegaNicaraguaIMO2013Universidad Nacional de IngenieríaProfesor de centro universitarioIndexed profileRPRoland PaulinHungaryIMO2004 · 2005 · 2006Competition recordSilver medal · Gold medalRPRoland ProhaskaAustriaIMO2010 · 2011ETH ZürichGeschäftsführer D-MATHIndexed profileRSRoland SchatzAustriaIOI2000 · 2001Competition recordBronze medalRLRolands LopatkoLatviaIMO2020 · 2021University of LatviaIndexed profileRRRolf-Günter RiedelGerman Democratic RepublicIMO1963Competition recordBronze medalRMRolly MamaniPeruIOI2022Competition recordBronze medalRARoman AndreevRussiaIOI2010WorldQuantQuantitative Research ConsultantAutumn profileRARoman ApostolUkraineIMO2005Mate academyCEO, co-founderIndexed profileRBRoman BoykiyRussian FederationIMO2008Competition recordGold medalRCRoman CheplyakaUkraineIMO2004 · 2005Competition recordSilver medal · Gold medalRDRoman DovgardIsraelIMO1997 · 1998 · 1999Weizmann Institute of ScienceConsultantIndexed profileRDRoman DrnovšekYugoslaviaIMO1983 · 1984 · 1985University of Ljubljana, Faculty of Mathematics and PhysicsProfessor of MathematicsIndexed profileRERoman ElizarovRussiaIOI1993 · 1994ITMO UniversityIndexed profileRFRoman FedorovRussian FederationIMO1993Competition recordGold medalRFRoman FurkoUkraineIOI2012 · 2013Competition recordBronze medal · Silver medalRKRoman KachurUkraineIOI2015Competition recordSilver medalRKRoman KapuścińskiPolandIMO1981University of MichiganFord Motor Co. CoDirector of Tauber Institute, Professor of Operations and Management Science,Indexed profileRKRoman KarasevRussian FederationIMO1994Competition recordGold medalRKRoman KravchenkoRussian FederationIMO2026Competition recordGold medalRKRoman KuznetsovIMO2022Competition recordSilver medalRKRoman KuznetsovIMO2023Competition recordGold medalRŁRoman ŁomowskiPolandIMO2001 · 2002SyncronData Science LeadIndexed profileRLRomano LonardoniItalyIMO1988 · 1989CleverFiSolution ArchitectIndexed profileR-Romanos - Diogenis MalikiosisGreeceIMO1998Aristotle University of Thessaloniki (AUTH)ProfessorIndexed profileRPRoman PastoukhovRussiaIOI1999 · 2000 · 2001Competition recordGold medal · Silver medalRPRoman PotsepaevUkraineIOI1994Competition recordBronze medalIndexed profileRRRoman RizvanovUkraineIOI2006Competition recordBronze medal
Roman RubanenkoUkraineIOI2012 · 2013Ansatz CapitalQuantitative DeveloperAutumn profileRSRoman SarapinUkraineIMO2017 · 2018Competition recordBronze medal · Gold medalRSRoman SchmiedSwitzerlandIMO1995ViewpointsystemTeam Lead Sensors–Data–IntelligenceIndexed profileRSRoman SmržCzech RepublicIOI2007 · 2008Amarula SolutionsTechnical lead, Linux kernel developerIndexed profileRSRoman SotákCzechoslovakiaIMO1986 · 1987Competition recordBronze medal
Roman YanushevskyiUkraineIOI2022TouchmarkCo-FounderAutumn profileRDRom DudkiewiczIsraelIMO2010 · 2011imper.aiCo-Founder & CTOIndexed profileRMRomeo MeštrovićYugoslaviaIMO1979Competition recordBronze medal
Romeo PassaroItalyIMO2020 · 2021AITHYRA Research Institute for Biomedical Artificial IntelligencePredoctoral FellowAutumn profileRARomnie Alberto Acosta CastroEcuadorIMO2003Competition recordHonourable mentionRPRom PinchasiIsraelIMO1991 · 1992EPFLVisiting ProfessorIndexed profileRDRomualdas DumčiusLithuaniaIOI1993 · 1994Competition recordBronze medalIndexed profileRBRonald BlaakNetherlandsIMO1988Universite Clermont AuvergneResearcherAutumn profileRdRonald de ManNetherlandsIMO1990Competition recordSilver medalRMRonald Ma LamEcuadorIMO2007Competition recordHonourable mention
Rogelio Guerrero ReyesMexicoIMO2022 · 2023 · 2024MercorAI Engineering Student / IMO Gold MedalistAutumn profileRERoger Espel LlimaSpainIMO1992Competition recordBronze medalRogério Aristida Guimarães JuniorBrazilIOI2016 · 2017CaltechGraduate ResearcherAutumn profileRLRoger Lidón ArdanuySpainIMO2022 · 2023Competition recordBronze medalRMRoger MongCanadaIMO2001 · 2002University of PittsburghAssociate ProfessorIndexed profileRGRohan GoyalIndiaIMO2021Competition recordBronze medalRGRohin GargUnited States of AmericaIOI2023 · 2024Character.AIAI Research & Development InternIndexed profileRJRohit JoshiIndiaIMO2004Competition recordSilver medalRohit KhandekarIndiaIMO1995Self EmployedMachine Learning SpecialistAutumn profileRMRoie MarianerIsraelIOI1998 · 1999 · 2000 · 2001Competition recordBronze medal · Silver medal · Gold medalAutumn profileRURokas UrbonasLithuaniaIOI2020Competition recordBronze medalAutumn profileRHRoland HablutzelVenezuelaIMO2005Competition recordHonourable mentionIndexed profileRLRoland LakatosHungaryIOI1996Competition recordBronze medalRMRolando Miguel Lorenzo VeraCubaIOI1993Competition recordBronze medalRolando Trujillo RasúaCubaIMO1999 · 2000Universitat Rovira i VirgiliRamón y Cajal ResearcherAutumn profileRURolando Uranga PiñaCubaIMO1989 · 1990Cencec S.A.BioestadísticoIndexed profileRVRolando VegaNicaraguaIMO2013Universidad Nacional de IngenieríaProfesor de centro universitarioIndexed profileRPRoland PaulinHungaryIMO2004 · 2005 · 2006Competition recordSilver medal · Gold medalRPRoland ProhaskaAustriaIMO2010 · 2011ETH ZürichGeschäftsführer D-MATHIndexed profileRSRoland SchatzAustriaIOI2000 · 2001Competition recordBronze medalRLRolands LopatkoLatviaIMO2020 · 2021University of LatviaIndexed profileRRRolf-Günter RiedelGerman Democratic RepublicIMO1963Competition recordBronze medalRMRolly MamaniPeruIOI2022Competition recordBronze medalRARoman AndreevRussiaIOI2010WorldQuantQuantitative Research ConsultantAutumn profileRARoman ApostolUkraineIMO2005Mate academyCEO, co-founderIndexed profileRBRoman BoykiyRussian FederationIMO2008Competition recordGold medalRCRoman CheplyakaUkraineIMO2004 · 2005Competition recordSilver medal · Gold medalRDRoman DovgardIsraelIMO1997 · 1998 · 1999Weizmann Institute of ScienceConsultantIndexed profileRDRoman DrnovšekYugoslaviaIMO1983 · 1984 · 1985University of Ljubljana, Faculty of Mathematics and PhysicsProfessor of MathematicsIndexed profileRERoman ElizarovRussiaIOI1993 · 1994ITMO UniversityIndexed profileRFRoman FedorovRussian FederationIMO1993Competition recordGold medalRFRoman FurkoUkraineIOI2012 · 2013Competition recordBronze medal · Silver medalRKRoman KachurUkraineIOI2015Competition recordSilver medalRKRoman KapuścińskiPolandIMO1981University of MichiganFord Motor Co. CoDirector of Tauber Institute, Professor of Operations and Management Science,Indexed profileRKRoman KarasevRussian FederationIMO1994Competition recordGold medalRKRoman KravchenkoRussian FederationIMO2026Competition recordGold medalRKRoman KuznetsovIMO2022Competition recordSilver medalRKRoman KuznetsovIMO2023Competition recordGold medalRŁRoman ŁomowskiPolandIMO2001 · 2002SyncronData Science LeadIndexed profileRLRomano LonardoniItalyIMO1988 · 1989CleverFiSolution ArchitectIndexed profileR-Romanos - Diogenis MalikiosisGreeceIMO1998Aristotle University of Thessaloniki (AUTH)ProfessorIndexed profileRPRoman PastoukhovRussiaIOI1999 · 2000 · 2001Competition recordGold medal · Silver medalRPRoman PotsepaevUkraineIOI1994Competition recordBronze medalIndexed profileRRRoman RizvanovUkraineIOI2006Competition recordBronze medalRoman RubanenkoUkraineIOI2012 · 2013Ansatz CapitalQuantitative DeveloperAutumn profileRSRoman SarapinUkraineIMO2017 · 2018Competition recordBronze medal · Gold medalRSRoman SchmiedSwitzerlandIMO1995ViewpointsystemTeam Lead Sensors–Data–IntelligenceIndexed profileRSRoman SmržCzech RepublicIOI2007 · 2008Amarula SolutionsTechnical lead, Linux kernel developerIndexed profileRSRoman SotákCzechoslovakiaIMO1986 · 1987Competition recordBronze medalRoman YanushevskyiUkraineIOI2022TouchmarkCo-FounderAutumn profileRDRom DudkiewiczIsraelIMO2010 · 2011imper.aiCo-Founder & CTOIndexed profileRMRomeo MeštrovićYugoslaviaIMO1979Competition recordBronze medalRomeo PassaroItalyIMO2020 · 2021AITHYRA Research Institute for Biomedical Artificial IntelligencePredoctoral FellowAutumn profileRARomnie Alberto Acosta CastroEcuadorIMO2003Competition recordHonourable mentionRPRom PinchasiIsraelIMO1991 · 1992EPFLVisiting ProfessorIndexed profileRDRomualdas DumčiusLithuaniaIOI1993 · 1994Competition recordBronze medalIndexed profileRBRonald BlaakNetherlandsIMO1988Universite Clermont AuvergneResearcherAutumn profileRdRonald de ManNetherlandsIMO1990Competition recordSilver medalRMRonald Ma LamEcuadorIMO2007Competition recordHonourable mention