International GAMMA Math Olympiad 2026

IGMO (International GAMMA Math Olympiad) is a free to enter online mathematics olympiad organized by GAMMA. It is the perfect opportunity for everyone in any age bracket, any timezone and any background to experience a mathematical olympiad, and it is conducted completely remotely!

2026 Schedule & Details

  • Registration starts on November 1, 2026, and ends on November 14, 2026.
  • The exam is scheduled for November 21-22, 2026.
  • Further details will be revealed gradually.
  • For reference, the 2023 edition featured a prize pool of $2000.
Enter Exam Lobby View Leaderboard

Competition Procedure

IGMO consists of 2 rounds.

Round 1

  • The first round is a free to enter round where anyone from anywhere in the world can participate.
  • Participants can access the question paper over a 24 hour period, but must submit their solutions 4 hours after they have opened their question paper.
  • Round 1 will consist of 15 questions with an integer solution between 0 and 999 inclusive, along with a proof based question at the end.

Round 2

  • The 2nd round consists of the top 100 (or 150) participants in Round 1.
  • Participants face olympiad problems similar in difficulty to those seen in the IMO and the USAMO.
  • Round 2 will consist of 6 problems over 2 days (3 problems each day).
  • Participants will have 18 hours to access the paper and must submit their solutions within 4 hours and 30 minutes of opening the paper.

Preparation & Community

  • We recommend practicing problems from other national math olympiads.
  • Good examples are: IMO (International Mathematical Olympiad), BMO (British Mathematical Olympiad), INMO (Indian Mathematical Olympiad) and USAMO (United States of America Mathematical Olympiad).
  • If you want to meet the team and ask any questions about IGMO, join our discord server!