Calendar
Check back for more information, or get our email updates.
January 1: Registration opens for the National Open Exam and LEES Program
February 29: Deadline to register for the National Open Exam
March 6 – 10: National Open Exam (students and proctors to agree on exact date)
March 11: Proctors may return exam materials to students
March 12: [EXTENDED] Deadline to submit Optional Supplementary Questions
April 12: Release of results from the national selection process
April 24: Registration for LEES opens
June 1: Invitations for LEES program sent
June 2 – 9: USESO Training Camp (Hosted at University of Tulsa campus)
June 15: Deadline to register for the LEES Program
July 14 – 20: LEES Program (Hosted online)
August 8 – 16: IESO 2024 in Beijing, China
updated March 10, 2023
February 1: Registration opens for the National Open Exam and LEES Program
March 1: Deadline to register for the National Open Exam
March 9 – 14: Window for the National Open Exam (timing TBD by student and their proctor)
March 20: Deadline to submit Optional Supplementary Essay
April 15: Release of results from the national selection process
April 24: Registration for LEES opens
May 15: Deadline to register for the LEES Program
June 1: Invitations for LEES program sent
June 24 – July 1: USESO Training Camp (Hosted at University of Tulsa campus)
July 15 – 22: LEES Program (Hosted virtually)
August 2023: IESO (Hosted virtually, exact dates TBA)
March 2: Registration opens for the National Open Exam
March 27: Deadline to register for the National Open Exam
April 7 – 12: Window for the National Open Exam (timing TBD by student and their proctor)
May 16: Release of results from the national selection process
June 15: Deadline to register for the LEES Program
June 25 – July 2: USESO Training Camp (virtual)
July 10 – 17: LEES Program (virtual)
August 24 – 31: IESO (virtual, hosted by Italy)
April: Deadline to register for the National Open Exam
April 10 @ 11am GMT-7 (PDT): National Open Exam
May 1: Release of results from the national selection process
June 27 – July 3: USESO Training Camp (virtual)
July 11 – July 18: Junior Program (virtual) – now LEES Program