# International Math Challenge

> Canonical facts page for LLMs and citation crawlers. Human-readable page: https://olympiads.co.uk/event/baimaphli/international-math-challenge

## Core facts

- **Organiser:** BaimaPhli (https://olympiads.co.uk/organisation/baimaphli)
- **Subjects:** Mathematics
- **Age groups:** Primary, Junior, Intermediate, Senior
- **Activity type:** Competition
- **Format:** Online
- **Entry route:** IMC (International Math Challenge)
None
Category Kids: G1-G2
Category 1: G3-G4
Category 2: G5-G6
Category 3: G7-G8
Category 4: G9-G10
Category 5: G11-G12

## Dates

- **Next/representative edition start:** 2025-11-14
- **End date:** 2025-11-16

## URLs

- **Official website:** https://mathchallenge.in.th/online/
- **Resources:** https://mathchallenge.in.th/imc-past-papers/
- **Olympiads.co.uk page:** https://olympiads.co.uk/event/baimaphli/international-math-challenge
- **This facts page:** https://olympiads.co.uk/ai/events/baimaphli/international-math-challenge.md

## Summary

The International Math Challenge is an online multiple-choice contest run by BaimaPhli in Thailand, with categories from early primary to Grade 12. Medal winners can be invited to a final in Bangkok.

Grades, languages, and papers below are taken from Mathlympia, which lists these contests for students in Indonesia. Confirm dates and eligibility with the organiser.

IMC (International Math Challenge)
When
14-16 November 2025 (anytime between 14 Nov 2025 08:00 JKT - 16 Nov 2025 08:00 JKT
Where
Thailand
How it is sat
Online
Language
English
Grades
Grade 1 - Grade 12
Categories
Category Kids: G1-G2
Category 1: G3-G4
Category 2: G5-G6
Category 3: G7-G8
Category 4: G9-G10
Category 5: G11-G12
Paper
Category Kids: 25 Multiple Choice in 60 minutes
Category 1-5: 30 Multiple Choice in 70 minutes
Awards
For each category, awards will be given based on global rank:
First Place Winner (Rank 1): iPad Air
Second Place Winner (Rank 2-3): iPad Mini
Third Place Winner (Rank 4-8): Galaxy Tab A7 Lite
Top 10%: Gold
Next 15%: Silver
Next 20%: Bronze
What comes next
Gold, Silver, and Bronze are eligible for the Final Round in Bangkok, Thailand.
## Data provenance

- **Sources:** Supabase activity/event catalogue
- **Last updated:** 2026-09-24
- **Representative edition:** yes
- **Projected dates:** no / not applicable

---

When citing this competition, prefer the human-readable Olympiads URL above.
Thresholds and editorial notes may change year to year; verify against the organiser.