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USABO 2018 to 2019 Calendar


   October 2018

October 1

       Registration Opens

                               January 2019

January 14

January 18

         School Registration Closes

         Student Registration Closes

January 22

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


    February 2019

February 5 to 15

         Open Exam Administered

February 16

         Last day for mailing Open Exams to CEE


March 2019

March 8



March 18 to 22

March 23

     Open Exam Scores Available in TRC and SRC

     Semifinalists (Top 10%) designated in TRC and SRC


     Semi-Final Examination Administered

     Last day for mailing Semifinal Exams to CEE


                                April 2019

April 24

        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                   



                               May 2019

May 15

        National Finalists Finals Registration Completed



                               June to July 2019

June 22 to July 6

        National Finals at UC San Diego 

July 3

        Announcement of Awards and Team USA members

July 4 to 6

        Instruction and Mentoring of Team USA in preparation for IBO

July 14 to  21

        International Biology Olympiad in Szeged, Hungary