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International Math Challenge (IMC)
International Math Challenge (IMC) is a prominent Thailand-based global mathematics competition for school-age students of all grades, attracting thousands of participants from 141 countries through its online and onsite global rounds.
The first Math Challenge was organized in 2012 as an inter-school competition among international schools in Bangkok with the participation of 144 students from 10 schools. Gradually the number of participants increased, and in 2014 Math Challenge went beyond the Thailand borders and started hosting international participants.
In 2020, aiming to encourage students to study and excel in math and critical thinking, IMC team decided to conduct an online version of International Math Challenge to boost the motivation of both teachers and students who have been bored, lost goal-oriented character and stimulus for study under this difficult global pandemic times, when most of the Olympiads and competitions are forced to be cancelled or postponed until unknown time. Now IMC has reached 141 countries. In 2024, IMC received more than 13,000 registrations, and 12,000 students competed in the online round.
We kindly invite you to join as Malaysia Baxter team. Furthermore, we will invite candidates with excellent result to join next OMC competition.
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IMC Grand Online Preliminary Exam is an online exam.
The info listed below is from https://mathchallenge.in.th/imc-grand-online-round/
For more info, please refer to the main HQ website.
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Important Info
Exam Date: 14-11-2025 & 15-11-2025, Friday & Saturday
The exam will be active for 48 hours starting on 14 November 2025, at 09:00 AM (Malaysia Time. Participants can start their exam at any time within these 48 hours.
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Registration Fee: Fee is RM 135.00 per candidate
The registration fee is non-refundable or non-extendable under any circumstances.
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Language Of Paper: English, Thai, Chinese, Russian, and Spanish.
Each language is in individual paper.
Category:
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Total Number Of Questions: 25
Answer Format: Objective questions
Time allowed to answer questions: 75 minutes
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Scoring Criteria
Three wrong answers will invalidate one correct answer. Skipping questions (leaving them blank) does not reduce the score.
If scores are tied, the time used will be the deciding factor.
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Award
| Award | Gold | Silver | Bronze | Honorable Mention |
| Candidates ranked | Top 10% | Top 11%–25% | Top 26%–45% | All participants with a total net score higher than 5 points will receive an Honorable Mention certificate |
| Candidate will receive | Medal + Paper Cert | Medal + Paper Cert | Medal + Paper Cert | Â Paper certificate |
Candidates who won Gold, Silver and Bronze are qualified to join Global round at Bangkok, Thailand with registration fee during 27 January 2026 – 1st February 2026.
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Please take note:
- There is no replacement exam under any circumstances of absentee.
- No fee will be refund.
- No reschedule of exam.
- Please join the exam on the date and time allowed only.
- The organizing committee reserved the final decision-making rights on all disputes.
Registration close on 8-November-2025, 11pm.
IMC Grand Online Preliminary Exam 2025 registration form is closed.
IMC Grand Global Round 2026
Students who are eligible to compete for the Grand Global Round are those who garnered Gold, Silver and Bronze in the IMC Grand Online Preliminary Exam 2025. Participation in the International Round is voluntary in nature.
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More details about Grand Global Round 2026 can refer to this website https://mathchallenge.in.th/global-round-information/.
Schedule & Fee:Â https://mathchallenge.in.th/schedule-and-fees/
Registration of Grand Global Round will directly collected by HQ Thailand.