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USABO 2021 Calendar Tentative


   October 2020

October 18

       Registration Opens

                               January 2021

January 15

January 22

         School Registration Closes

         Student Registration Closes

January 22

         Deadline for payment of Registration Fee ($95.00/school)


    February 2021

February 9 to 20

         Open Exam Administered

February 21

         Last day for mailing Open Exams to CEE


March 2021

March 22




     Open Exam Scores Available in TRC and SRC

     Semifinalists (Top 10%) designated in TRC and SRC


                                April 2021

April 12 to 15

April 16

         Semi-Final Examination Administered   

         Last day for mailing Semifinal Exams to CEE



                               May 2021

May 7



May 14

        Semifinal Exam Scores Available in TRC and SRC

        Finalists (Top 20 and ties) designated in TRC and SRC

        National Finalists Announced on the USABO website           

        National Finalists Finals Registration Completed

May 22 - June 5

        National Finals 

                               June to July 2021

May 22 - June 5

        National Finals 

June 2

        Announcement of Awards and USA Biolympiad Team members

June 4 to 5

        Instruction and Mentoring of USA Biolympiad Team 

July 18 to  25

        International Biology Olympiad in Lisbon, Portugal