Dates

Here is a brief description of each contest; please refer to the Contests & Rules page for more.
  • A regular contest refers to a monthly short-answer contest.
  • Revenge contests are identical to monthly contests, but accepts problem proposals from students
  • The Winter Olympiad is a proof-based contests for teams of up to four.
  • The OMO contests are a separate series of contests hosted on internetolympiad.org; they are short-answer contests where teams of four are given over one week to solve thirty problems.

Contest Dates for the 2016-2017 School Year

These dates are tentative, subject to possible change.
Contest Name Dates
Contest 27 September 26, 2016 Mon
Contest 28 October 18, 2016 Tue
Fall OMO 2016 November 4 - 15, 2016 Fri - Tue
Contest 29 November 30, 2016 Wed
Contest 30 February 16, 2017 Thu
Spring OMO 2017 March 24 - April 4, 2017 Fri - Tue
April Fun Round April 1, 2017 Sat
Revenge 31 April 7, 2017 Fri
Contest 32 May 11, 2017 Thu

Contest Dates for the 2015-2016 School Year

Contest Name Dates
Contest 20 September 23, 2015 Wed
Contest 21 October 16, 2015 Fri
Fall OMO 2015 November 6 - 17, 2015 Fri - Tue
Revenge 22 December 8, 2015 Tue
Contest 23 January 7, 2016 Thu
Contest 24 February 22, 2016 Mon
Spring OMO 2016 March 18 - 29, 2016 Fri - Tue
April Fun Round April 1, 2016 Fri
Revenge 25 April 5, 2016 Tue
Contest 26 May 12, 2016 Thu