Calendar - 2021

• January

  • 07.01 – 13.01
    17th International Zhautikov Olympiad

    online

    /Results

• March

  • 20.03 –
    53rd National Chemistry olympiad

    regional schools

    /Results

• April

  • 09.04 – 15.04
    Xth European Girls' Mathematical Olympiad

    online (Georgia)

    /Results
  • 20.04 – 26.04
    55th International Mendeleev Chemistry Olympiad

    online (Hungary)

    /Results

• May

  • 08.05 –
    National Chemistry Competition
  • 09.05 –
    National Physics Olympiad - Theory

    Bulgaria

    /Results
  • 12.05 –
    National Linguistics Olympiad

    Bulgaria

    /Results
  • 15.05 – 16.05
    70th National mathematical olympiad

    Local schools

    /Results

• June

  • 05.06 –
    National physics olympiad - experimental

    Sofia
  • 06.06 –
    National Biology Olympiad

    Regional schools

    /Results
  • 06.06 –
    National Astronomy Olympiad

    Regional schools

    /Results
  • 13.06 – 19.06
    1st European Girls' Olympiad in Informatics - EGOI

    online

    /Results
  • 19.06 – 26.06
    5th European Physics Olympiad

    online

    /Results
  • 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

    /Results
  • 17.07 – 24.07
    51st International Physics Olympiad

    Vilnius, Lithuania

    /Results
  • 17.07 – 21.07
    32nd Internation Biology Olympiad (IBO CHALLENGE)

    online

    /Results
  • 19.07 – 23.07
    18th International Linguistics Olympiad

    online (Ventspils, Latvia)

    /Results
  • 25.07 – 02.08
    53rd International Chemistry Olympiad

    online (Japan)

    /Results

• August

  • 24.08 – 28.08
    5th European Junior Olympiad in Informatics

    online (Romania)

    /Results
  • 24.08 – 02.09
    14th Balkan Olympiad in Informatics

    online (with eJOI)

    /Results

• September

  • 06.09 – 10.09
    38th Balkan Mathematical Olympiad

    online (Cyprus)

    /Results

• November

  • 05.11 – 13.11
    25th International Astronomy Olympiad

    Milano, Italy (online)

    /Results
  • 14.11 – 21.11
    14th International olympiad in astronomy and astrophysics

    Bogota, Colombia (online)

    /Results
  • 24.11 – 29.11
    13th International Autumn Tournament of Informatics

    Shumen, Bulgaria (online)
  • 24.11 – 29.11
    28th Balkan olympiad in informatics

    North Macedonia (online)

    /Results