| Category | Thai system | US/Canada system | British system | Russian system | Age |
|---|---|---|---|---|---|
| Category Kids | Prathom 1 | Grade 1 | Year 2 | Grade 1 | 6 years |
| Prathom 2 | Grade 2 | Year 3 | Grade 2 | 7 years | |
| Category 1 | Prathom 3 | Grade 3 | Year 4 | Grade 3 | 8 years |
| Prathom 4 | Grade 4 | Year 5 | Grade 4 | 9 years | |
| Category 2 | Prathom 5 | Grade 5 | Year 6 | Grade 5 | 10 years |
| Prathom 6 | Grade 6 | Year 7 | Grade 6 | 11 years | |
| Category 3 | Matthayom 1 | Grade 7 | Year 8 | Grade 7 | 12 years |
| Matthayom 2 | Grade 8 | Year 9 | Grade 8 | 13 years | |
| Category 4 | Matthayom 3 | Grade 9 | Year 10 | Grade 9 | 14 years |
| Matthayom 4 | Grade 10 | Year 11 | Grade 10 | 15 years | |
| Category 5 | Matthayom 5 | Grade 11 | Year 12 | Grade 11 | 16 years |
| Matthayom 6 | Grade 12 | Year 13 | Grade 12 | 17 years |
Verification and Eligibility
- Before awarding prizes, the IMC team will request documentation verifying the grade and age of the winners.
- If a participant provides inaccurate information regarding their category, the IMC team reserves the right to nullify the participant’s eligibility for prizes.
- Prizes cannot be exchanged for cash or transferred to another person under any circumstances.
