In June 2026, a grade A in Edexcel A-level Biology A needed 196 out of 300 raw marks — 65%. An A* needed 220 (73%). That's 4 marks lower than June 2025 — the paper was found harder, so fewer marks were needed.
| Grade | Raw marks | Percentage |
|---|---|---|
| A* | 220 | 73% |
| A | 196 | 65% |
| B | 170 | 57% |
| C | 144 | 48% |
| D | 119 | 40% |
| E | 94 | 31% |
| Grade | Raw marks | Percentage |
|---|---|---|
| A* | 225 | 75% |
| A | 200 | 67% |
| B | 173 | 58% |
| C | 146 | 49% |
| D | 119 | 40% |
| E | 92 | 31% |
| Grade | Raw marks | Percentage |
|---|---|---|
| A* | 199 | 66% |
| A | 171 | 57% |
| B | 144 | 48% |
| C | 117 | 39% |
| D | 91 | 30% |
| E | 65 | 22% |
| Gap | Width |
|---|---|
| A* → A | 24 marks |
| A → B | 26 marks |
| B → C | 26 marks |
| C → D | 25 marks |
| D → E | 25 marks |
The gap table is the revision-planning number: it's how many extra marks each grade actually costs. A gap this size is usually one exam question done properly, not a different student.
220 out of 300 in June 2026 — 73% of the raw marks.
65% in June 2026: 196 raw marks out of 300. The percentage moves each year with the paper's difficulty — the grade is fixed, the marks aren't.
Boundaries are set after marking so that a grade represents the same standard despite papers varying in difficulty. A harder paper gets lower boundaries; an easier one gets higher. Predicting next year's boundary from this year's is guessing the difficulty of an unwritten paper.
Read 18 August 2026 from the official Edexcel grade boundaries document: source PDF. Boundaries are set per series and never apply to next year's papers.
Boundaries read 19 August 2026 from the official board documents, linked on every page. Boundaries are set per exam series; nothing here predicts a future paper.