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USABO 2020 Calendar


   October 2019

September 23

       Registration Opens

                               January 2020

January 14

January 18

         School Registration Closes

         Student Registration Closes

January 22

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


    February 2020

February 4 to 14

         Open Exam Administered

February 15

         Last day for mailing Open Exams to CEE


March 2020

March 9




     Open Exam Scores Available in TRC and SRC

     Semifinalists (Top 10%) designated in TRC and SRC


                                April 2020

April 20 to 23

April 24

         Semi-Final Examination Administered   

         Last day for mailing Semifinal Exams to CEE



                               May 2020

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 6

        National Finals 

                               June to July 2020

May 22 - June 6

        National Finals 

June 4

        Announcement of Awards and USA Biolympiad Team members

June 5 - 6

        Instruction and Mentoring of USA Biolympiad Team 

July 3 to  11

        International Biology Olympiad in Sasebo City, Japan