Calendar - 2021

  • January

    • 07.01 – 13.01
      17th International Zhautikov Olympiad
      online
  • March

    • 20.03 –
      53rd National Chemistry olympiad
      regional schools
  • April

    • 09.04 – 15.04
      Xth European Girls' Mathematical Olympiad
      online (Georgia)
    • 20.04 – 26.04
      55th International Mendeleev Chemistry Olympiad
      online (Hungary)
  • May

    • 08.05 –
      National Chemistry Competition
    • 09.05 –
      National Physics Olympiad - Theory
      Bulgaria
    • 12.05 –
      National Linguistics Olympiad
      Bulgaria
    • 15.05 – 16.05
      70th National mathematical olympiad
      Local schools
  • June

    • 05.06 –
      National physics olympiad - experimental
      Sofia
    • 06.06 –
      National Astronomy Olympiad
      Regional schools
    • 06.06 –
      National Biology Olympiad
      Regional schools
    • 13.06 – 19.06
      1st European Girls' Olympiad in Informatics - EGOI
      online
    • 19.06 – 26.06
      5th European Physics Olympiad
      online
    • 20.06 – 27.06
      33rd International Olympiad in Informatics
      online (Singapore)
    • 29.06 – 05.07
      25th JUNIOR BALKAN MATHEMATICAL OLYMPIAD
      online (Moldova)
  • July

    • 07.07 – 14.07
      34th International Young Physicists’ Tournament
      Kutaisi, Georgia
    • 14.07 – 24.07
      62md International Mathematical olympiad
      online
    • 17.07 – 24.07
      51st International Physics Olympiad
      Vilnius, Lithuania
    • 17.07 – 21.07
      32nd Internation Biology Olympiad (IBO CHALLENGE)
      online
    • 19.07 – 23.07
      18th International Linguistics Olympiad
      online (Ventspils, Latvia)
    • 25.07 – 02.08
      53rd International Chemistry Olympiad
      online (Japan)
  • August

    • 24.08 – 28.08
      5th European Junior Olympiad in Informatics
      online (Romania)
    • 24.08 – 02.09
      14th Balkan Olympiad in Informatics
      online (with eJOI)
  • September

    • 01.09 – 30.09
      14th International olympiad in astronomy and astrophysics
      Bogota, Colombia
    • 06.09 – 10.09
      38th Balkan Mathematical Olympiad
      online (Cyprus)
  • October

    • 01.10 – 31.10
      25th International Astronomy Olympiad
      Matera, Italy