Pearson Edexcel A-level Biology B grade boundaries
Data source: Pearson Edexcel GCE A-level grade boundaries (June 2025) · 2024–2025 data · checked July 2026How we verify →
The raw marks needed for each grade in Pearson Edexcel A-level Biology B (9BI0), straight from Pearson Edexcel's official tables. Boundaries are set after every paper is marked, so a lower boundary usually means the paper was harder that year — not that the grade got easier. That's why we show more than one year.
Reform watch:England's 2025 Curriculum & Assessment Review doesn't change GCSE or A-level content until reformed specs are first taught (national curriculum September 2028; updated GCSEs from 2029). Your 2026–2028 exams use the current specification. What's changing →
Grade boundaries
Out of 300 marks.
| Grade | 2025 | 2024 | Change |
|---|---|---|---|
| A* | 217 | 205 | +12 |
| A | 188 | 170 | +18 |
| B | 160 | 144 | +16 |
| C | 132 | 119 | +13 |
| D | 105 | 94 | +11 |
| E | 78 | 69 | +9 |
Enter your total subject mark out of 300 — the whole subject, not one paper.
/ 300
How to read these. A boundary is the minimum raw mark for that grade — score it or above and you get the grade. They're a whole-subject total, not a per-paper pass mark, and they change every year. Never treat a past year's boundary as this year's target. Why A-level grade boundaries move →
Where these numbers come from
- 2025: Pearson Edexcel GCE A-level grade boundaries, June 2025 (June 2025 series)
- 2024: Pearson Edexcel GCE A-level grade boundaries, June 2024 (June 2024 series)
- Earlier series and other qualifications are on Pearson Edexcel's grade-boundaries pages. We add boards and years as we verify each against its official file.
Frequently asked questions
See all A-level grade boundaries, or read how A-level grades work.