Cambridge IGCSE First Language Thai (0518) grade boundaries
In short
In June 2026, candidates needed 76 out of 100 for grade A* and 49 for grade C.
Grade boundaries by series
| Series | Max | A* | A | B | C |
|---|---|---|---|---|---|
| June 2026 | 100 | 76 | 67 | 58 | 49 |
| June 2025 | 100 | 78 | 68 | 58 | 49 |
| June 2024 | 100 | 79 | 70 | 61 | 52 |
| June 2023 | 100 | 79 | 69 | 59 | 50 |
| June 2022 | 100 | 75 | 66 | 57 | 49 |
Where a syllabus has several paper variants or entry options in a series, each cell shows the lowest and highest threshold across them. Thresholds for Core routes and the remaining grades are in the source documents.
How to read these numbers
Across the 5 series in the table, the highest grade A* threshold ranged from 75 to 79. Thresholds change from series to series because each set of papers is different: a harder paper has a lower threshold.
A threshold is the minimum total mark for the grade. Compare your total on a full set of papers with the thresholds for that series and paper variant.
Sources
- Cambridge 0518, June 2026
- Cambridge 0518, June 2025
- Cambridge 0518, June 2024
- Cambridge 0518, June 2023
- Cambridge 0518, June 2022
Figures from the grade threshold tables published by Cambridge International. ExaminerPrep is not affiliated with Cambridge. Always check the source document for your own series and paper variant.