Jiří Kalvoda

Jiří Kalvoda is a Czech competitive-programming and mathematics talent who represented the Czech Republic at both the International Mathematical Olympiad (bronze, 2021) and the International Olympiad in Informatics (gold, 2021; silver, 2020). He studied at Gymnázium Brno, třída Kapitána Jaroše, and continued to Charles University's Faculty of Mathematics and Physics (MatFyz), Department of Applied Mathematics, where he does research in graph theory and contributes to the Czech Mathematical Olympiad organizing system.

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• Represented the Czech Republic at IMO 2021 (online, St Petersburg), bronze medal, 18 points (P1=7, P4=4, P5=7); missed silver by one point.Jul 2021
• Gold at International Olympiad in Informatics 2021, 380 points, rank 26/351 — elite dual IMO/IOI record.2021
• Preferred contact [contact omitted]; Matrix @jirikalvoda:ks.matfyz.cz; Git handles JiriKalvoda.2026
• Undergraduate at Charles University MatFyz, Department of Applied Mathematics.2026
• Co-author, 'Orientations of graphs with at most one directed path between every pair of vertices' (arXiv 2407.18346), 2024, with Barbora Dohnalová — active graph-theory research.Jul 2024
• IOI 2020 silver medalist (466.62 pts, 32/343); IOI 2019 competitor for Czech Republic.2020
• Participant in the 2023 DIMACS REU at Rutgers University.2023
• Attended Gymnázium Brno, třída Kapitána Jaroše.2021